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Diffstat (limited to 'tcg/ppc/tcg-target.c.inc')
| -rw-r--r-- | tcg/ppc/tcg-target.c.inc | 3884 |
1 files changed, 3884 insertions, 0 deletions
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc new file mode 100644 index 0000000000..3bef3789b3 --- /dev/null +++ b/tcg/ppc/tcg-target.c.inc @@ -0,0 +1,3884 @@ +/* + * Tiny Code Generator for QEMU + * + * Copyright (c) 2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "elf.h" +#include "../tcg-pool.c.inc" + +#if defined _CALL_DARWIN || defined __APPLE__ +#define TCG_TARGET_CALL_DARWIN +#endif +#ifdef _CALL_SYSV +# define TCG_TARGET_CALL_ALIGN_ARGS 1 +#endif + +/* For some memory operations, we need a scratch that isn't R0. For the AIX + calling convention, we can re-use the TOC register since we'll be reloading + it at every call. Otherwise R12 will do nicely as neither a call-saved + register nor a parameter register. */ +#ifdef _CALL_AIX +# define TCG_REG_TMP1 TCG_REG_R2 +#else +# define TCG_REG_TMP1 TCG_REG_R12 +#endif + +#define TCG_VEC_TMP1 TCG_REG_V0 +#define TCG_VEC_TMP2 TCG_REG_V1 + +#define TCG_REG_TB TCG_REG_R31 +#define USE_REG_TB (TCG_TARGET_REG_BITS == 64) + +/* Shorthand for size of a pointer. Avoid promotion to unsigned. */ +#define SZP ((int)sizeof(void *)) + +/* Shorthand for size of a register. */ +#define SZR (TCG_TARGET_REG_BITS / 8) + +#define TCG_CT_CONST_S16 0x100 +#define TCG_CT_CONST_U16 0x200 +#define TCG_CT_CONST_S32 0x400 +#define TCG_CT_CONST_U32 0x800 +#define TCG_CT_CONST_ZERO 0x1000 +#define TCG_CT_CONST_MONE 0x2000 +#define TCG_CT_CONST_WSZ 0x4000 + +static tcg_insn_unit *tb_ret_addr; + +TCGPowerISA have_isa; +static bool have_isel; +bool have_altivec; +bool have_vsx; + +#ifndef CONFIG_SOFTMMU +#define TCG_GUEST_BASE_REG 30 +#endif + +#ifdef CONFIG_DEBUG_TCG +static const char tcg_target_reg_names[TCG_TARGET_NB_REGS][4] = { + "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", + "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", + "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", + "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", +}; +#endif + +static const int tcg_target_reg_alloc_order[] = { + TCG_REG_R14, /* call saved registers */ + TCG_REG_R15, + TCG_REG_R16, + TCG_REG_R17, + TCG_REG_R18, + TCG_REG_R19, + TCG_REG_R20, + TCG_REG_R21, + TCG_REG_R22, + TCG_REG_R23, + TCG_REG_R24, + TCG_REG_R25, + TCG_REG_R26, + TCG_REG_R27, + TCG_REG_R28, + TCG_REG_R29, + TCG_REG_R30, + TCG_REG_R31, + TCG_REG_R12, /* call clobbered, non-arguments */ + TCG_REG_R11, + TCG_REG_R2, + TCG_REG_R13, + TCG_REG_R10, /* call clobbered, arguments */ + TCG_REG_R9, + TCG_REG_R8, + TCG_REG_R7, + TCG_REG_R6, + TCG_REG_R5, + TCG_REG_R4, + TCG_REG_R3, + + /* V0 and V1 reserved as temporaries; V20 - V31 are call-saved */ + TCG_REG_V2, /* call clobbered, vectors */ + TCG_REG_V3, + TCG_REG_V4, + TCG_REG_V5, + TCG_REG_V6, + TCG_REG_V7, + TCG_REG_V8, + TCG_REG_V9, + TCG_REG_V10, + TCG_REG_V11, + TCG_REG_V12, + TCG_REG_V13, + TCG_REG_V14, + TCG_REG_V15, + TCG_REG_V16, + TCG_REG_V17, + TCG_REG_V18, + TCG_REG_V19, +}; + +static const int tcg_target_call_iarg_regs[] = { + TCG_REG_R3, + TCG_REG_R4, + TCG_REG_R5, + TCG_REG_R6, + TCG_REG_R7, + TCG_REG_R8, + TCG_REG_R9, + TCG_REG_R10 +}; + +static const int tcg_target_call_oarg_regs[] = { + TCG_REG_R3, + TCG_REG_R4 +}; + +static const int tcg_target_callee_save_regs[] = { +#ifdef TCG_TARGET_CALL_DARWIN + TCG_REG_R11, +#endif + TCG_REG_R14, + TCG_REG_R15, + TCG_REG_R16, + TCG_REG_R17, + TCG_REG_R18, + TCG_REG_R19, + TCG_REG_R20, + TCG_REG_R21, + TCG_REG_R22, + TCG_REG_R23, + TCG_REG_R24, + TCG_REG_R25, + TCG_REG_R26, + TCG_REG_R27, /* currently used for the global env */ + TCG_REG_R28, + TCG_REG_R29, + TCG_REG_R30, + TCG_REG_R31 +}; + +static inline bool in_range_b(tcg_target_long target) +{ + return target == sextract64(target, 0, 26); +} + +static uint32_t reloc_pc24_val(tcg_insn_unit *pc, tcg_insn_unit *target) +{ + ptrdiff_t disp = tcg_ptr_byte_diff(target, pc); + tcg_debug_assert(in_range_b(disp)); + return disp & 0x3fffffc; +} + +static bool reloc_pc24(tcg_insn_unit *pc, tcg_insn_unit *target) +{ + ptrdiff_t disp = tcg_ptr_byte_diff(target, pc); + if (in_range_b(disp)) { + *pc = (*pc & ~0x3fffffc) | (disp & 0x3fffffc); + return true; + } + return false; +} + +static uint16_t reloc_pc14_val(tcg_insn_unit *pc, tcg_insn_unit *target) +{ + ptrdiff_t disp = tcg_ptr_byte_diff(target, pc); + tcg_debug_assert(disp == (int16_t) disp); + return disp & 0xfffc; +} + +static bool reloc_pc14(tcg_insn_unit *pc, tcg_insn_unit *target) +{ + ptrdiff_t disp = tcg_ptr_byte_diff(target, pc); + if (disp == (int16_t) disp) { + *pc = (*pc & ~0xfffc) | (disp & 0xfffc); + return true; + } + return false; +} + +/* parse target specific constraints */ +static const char *target_parse_constraint(TCGArgConstraint *ct, + const char *ct_str, TCGType type) +{ + switch (*ct_str++) { + case 'A': case 'B': case 'C': case 'D': + ct->ct |= TCG_CT_REG; + tcg_regset_set_reg(ct->u.regs, 3 + ct_str[0] - 'A'); + break; + case 'r': + ct->ct |= TCG_CT_REG; + ct->u.regs = 0xffffffff; + break; + case 'v': + ct->ct |= TCG_CT_REG; + ct->u.regs = 0xffffffff00000000ull; + break; + case 'L': /* qemu_ld constraint */ + ct->ct |= TCG_CT_REG; + ct->u.regs = 0xffffffff; + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3); +#ifdef CONFIG_SOFTMMU + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4); + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5); +#endif + break; + case 'S': /* qemu_st constraint */ + ct->ct |= TCG_CT_REG; + ct->u.regs = 0xffffffff; + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3); +#ifdef CONFIG_SOFTMMU + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4); + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5); + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6); +#endif + break; + case 'I': + ct->ct |= TCG_CT_CONST_S16; + break; + case 'J': + ct->ct |= TCG_CT_CONST_U16; + break; + case 'M': + ct->ct |= TCG_CT_CONST_MONE; + break; + case 'T': + ct->ct |= TCG_CT_CONST_S32; + break; + case 'U': + ct->ct |= TCG_CT_CONST_U32; + break; + case 'W': + ct->ct |= TCG_CT_CONST_WSZ; + break; + case 'Z': + ct->ct |= TCG_CT_CONST_ZERO; + break; + default: + return NULL; + } + return ct_str; +} + +/* test if a constant matches the constraint */ +static int tcg_target_const_match(tcg_target_long val, TCGType type, + const TCGArgConstraint *arg_ct) +{ + int ct = arg_ct->ct; + if (ct & TCG_CT_CONST) { + return 1; + } + + /* The only 32-bit constraint we use aside from + TCG_CT_CONST is TCG_CT_CONST_S16. */ + if (type == TCG_TYPE_I32) { + val = (int32_t)val; + } + + if ((ct & TCG_CT_CONST_S16) && val == (int16_t)val) { + return 1; + } else if ((ct & TCG_CT_CONST_U16) && val == (uint16_t)val) { + return 1; + } else if ((ct & TCG_CT_CONST_S32) && val == (int32_t)val) { + return 1; + } else if ((ct & TCG_CT_CONST_U32) && val == (uint32_t)val) { + return 1; + } else if ((ct & TCG_CT_CONST_ZERO) && val == 0) { + return 1; + } else if ((ct & TCG_CT_CONST_MONE) && val == -1) { + return 1; + } else if ((ct & TCG_CT_CONST_WSZ) + && val == (type == TCG_TYPE_I32 ? 32 : 64)) { + return 1; + } + return 0; +} + +#define OPCD(opc) ((opc)<<26) +#define XO19(opc) (OPCD(19)|((opc)<<1)) +#define MD30(opc) (OPCD(30)|((opc)<<2)) +#define MDS30(opc) (OPCD(30)|((opc)<<1)) +#define XO31(opc) (OPCD(31)|((opc)<<1)) +#define XO58(opc) (OPCD(58)|(opc)) +#define XO62(opc) (OPCD(62)|(opc)) +#define VX4(opc) (OPCD(4)|(opc)) + +#define B OPCD( 18) +#define BC OPCD( 16) +#define LBZ OPCD( 34) +#define LHZ OPCD( 40) +#define LHA OPCD( 42) +#define LWZ OPCD( 32) +#define LWZUX XO31( 55) +#define STB OPCD( 38) +#define STH OPCD( 44) +#define STW OPCD( 36) + +#define STD XO62( 0) +#define STDU XO62( 1) +#define STDX XO31(149) + +#define LD XO58( 0) +#define LDX XO31( 21) +#define LDU XO58( 1) +#define LDUX XO31( 53) +#define LWA XO58( 2) +#define LWAX XO31(341) + +#define ADDIC OPCD( 12) +#define ADDI OPCD( 14) +#define ADDIS OPCD( 15) +#define ORI OPCD( 24) +#define ORIS OPCD( 25) +#define XORI OPCD( 26) +#define XORIS OPCD( 27) +#define ANDI OPCD( 28) +#define ANDIS OPCD( 29) +#define MULLI OPCD( 7) +#define CMPLI OPCD( 10) +#define CMPI OPCD( 11) +#define SUBFIC OPCD( 8) + +#define LWZU OPCD( 33) +#define STWU OPCD( 37) + +#define RLWIMI OPCD( 20) +#define RLWINM OPCD( 21) +#define RLWNM OPCD( 23) + +#define RLDICL MD30( 0) +#define RLDICR MD30( 1) +#define RLDIMI MD30( 3) +#define RLDCL MDS30( 8) + +#define BCLR XO19( 16) +#define BCCTR XO19(528) +#define CRAND XO19(257) +#define CRANDC XO19(129) +#define CRNAND XO19(225) +#define CROR XO19(449) +#define CRNOR XO19( 33) + +#define EXTSB XO31(954) +#define EXTSH XO31(922) +#define EXTSW XO31(986) +#define ADD XO31(266) +#define ADDE XO31(138) +#define ADDME XO31(234) +#define ADDZE XO31(202) +#define ADDC XO31( 10) +#define AND XO31( 28) +#define SUBF XO31( 40) +#define SUBFC XO31( 8) +#define SUBFE XO31(136) +#define SUBFME XO31(232) +#define SUBFZE XO31(200) +#define OR XO31(444) +#define XOR XO31(316) +#define MULLW XO31(235) +#define MULHW XO31( 75) +#define MULHWU XO31( 11) +#define DIVW XO31(491) +#define DIVWU XO31(459) +#define CMP XO31( 0) +#define CMPL XO31( 32) +#define LHBRX XO31(790) +#define LWBRX XO31(534) +#define LDBRX XO31(532) +#define STHBRX XO31(918) +#define STWBRX XO31(662) +#define STDBRX XO31(660) +#define MFSPR XO31(339) +#define MTSPR XO31(467) +#define SRAWI XO31(824) +#define NEG XO31(104) +#define MFCR XO31( 19) +#define MFOCRF (MFCR | (1u << 20)) +#define NOR XO31(124) +#define CNTLZW XO31( 26) +#define CNTLZD XO31( 58) +#define CNTTZW XO31(538) +#define CNTTZD XO31(570) +#define CNTPOPW XO31(378) +#define CNTPOPD XO31(506) +#define ANDC XO31( 60) +#define ORC XO31(412) +#define EQV XO31(284) +#define NAND XO31(476) +#define ISEL XO31( 15) + +#define MULLD XO31(233) +#define MULHD XO31( 73) +#define MULHDU XO31( 9) +#define DIVD XO31(489) +#define DIVDU XO31(457) + +#define LBZX XO31( 87) +#define LHZX XO31(279) +#define LHAX XO31(343) +#define LWZX XO31( 23) +#define STBX XO31(215) +#define STHX XO31(407) +#define STWX XO31(151) + +#define EIEIO XO31(854) +#define HWSYNC XO31(598) +#define LWSYNC (HWSYNC | (1u << 21)) + +#define SPR(a, b) ((((a)<<5)|(b))<<11) +#define LR SPR(8, 0) +#define CTR SPR(9, 0) + +#define SLW XO31( 24) +#define SRW XO31(536) +#define SRAW XO31(792) + +#define SLD XO31( 27) +#define SRD XO31(539) +#define SRAD XO31(794) +#define SRADI XO31(413<<1) + +#define TW XO31( 4) +#define TRAP (TW | TO(31)) + +#define NOP ORI /* ori 0,0,0 */ + +#define LVX XO31(103) +#define LVEBX XO31(7) +#define LVEHX XO31(39) +#define LVEWX XO31(71) +#define LXSDX (XO31(588) | 1) /* v2.06, force tx=1 */ +#define LXVDSX (XO31(332) | 1) /* v2.06, force tx=1 */ +#define LXSIWZX (XO31(12) | 1) /* v2.07, force tx=1 */ +#define LXV (OPCD(61) | 8 | 1) /* v3.00, force tx=1 */ +#define LXSD (OPCD(57) | 2) /* v3.00 */ +#define LXVWSX (XO31(364) | 1) /* v3.00, force tx=1 */ + +#define STVX XO31(231) +#define STVEWX XO31(199) +#define STXSDX (XO31(716) | 1) /* v2.06, force sx=1 */ +#define STXSIWX (XO31(140) | 1) /* v2.07, force sx=1 */ +#define STXV (OPCD(61) | 8 | 5) /* v3.00, force sx=1 */ +#define STXSD (OPCD(61) | 2) /* v3.00 */ + +#define VADDSBS VX4(768) +#define VADDUBS VX4(512) +#define VADDUBM VX4(0) +#define VADDSHS VX4(832) +#define VADDUHS VX4(576) +#define VADDUHM VX4(64) +#define VADDSWS VX4(896) +#define VADDUWS VX4(640) +#define VADDUWM VX4(128) +#define VADDUDM VX4(192) /* v2.07 */ + +#define VSUBSBS VX4(1792) +#define VSUBUBS VX4(1536) +#define VSUBUBM VX4(1024) +#define VSUBSHS VX4(1856) +#define VSUBUHS VX4(1600) +#define VSUBUHM VX4(1088) +#define VSUBSWS VX4(1920) +#define VSUBUWS VX4(1664) +#define VSUBUWM VX4(1152) +#define VSUBUDM VX4(1216) /* v2.07 */ + +#define VNEGW (VX4(1538) | (6 << 16)) /* v3.00 */ +#define VNEGD (VX4(1538) | (7 << 16)) /* v3.00 */ + +#define VMAXSB VX4(258) +#define VMAXSH VX4(322) +#define VMAXSW VX4(386) +#define VMAXSD VX4(450) /* v2.07 */ +#define VMAXUB VX4(2) +#define VMAXUH VX4(66) +#define VMAXUW VX4(130) +#define VMAXUD VX4(194) /* v2.07 */ +#define VMINSB VX4(770) +#define VMINSH VX4(834) +#define VMINSW VX4(898) +#define VMINSD VX4(962) /* v2.07 */ +#define VMINUB VX4(514) +#define VMINUH VX4(578) +#define VMINUW VX4(642) +#define VMINUD VX4(706) /* v2.07 */ + +#define VCMPEQUB VX4(6) +#define VCMPEQUH VX4(70) +#define VCMPEQUW VX4(134) +#define VCMPEQUD VX4(199) /* v2.07 */ +#define VCMPGTSB VX4(774) +#define VCMPGTSH VX4(838) +#define VCMPGTSW VX4(902) +#define VCMPGTSD VX4(967) /* v2.07 */ +#define VCMPGTUB VX4(518) +#define VCMPGTUH VX4(582) +#define VCMPGTUW VX4(646) +#define VCMPGTUD VX4(711) /* v2.07 */ +#define VCMPNEB VX4(7) /* v3.00 */ +#define VCMPNEH VX4(71) /* v3.00 */ +#define VCMPNEW VX4(135) /* v3.00 */ + +#define VSLB VX4(260) +#define VSLH VX4(324) +#define VSLW VX4(388) +#define VSLD VX4(1476) /* v2.07 */ +#define VSRB VX4(516) +#define VSRH VX4(580) +#define VSRW VX4(644) +#define VSRD VX4(1732) /* v2.07 */ +#define VSRAB VX4(772) +#define VSRAH VX4(836) +#define VSRAW VX4(900) +#define VSRAD VX4(964) /* v2.07 */ +#define VRLB VX4(4) +#define VRLH VX4(68) +#define VRLW VX4(132) +#define VRLD VX4(196) /* v2.07 */ + +#define VMULEUB VX4(520) +#define VMULEUH VX4(584) +#define VMULEUW VX4(648) /* v2.07 */ +#define VMULOUB VX4(8) +#define VMULOUH VX4(72) +#define VMULOUW VX4(136) /* v2.07 */ +#define VMULUWM VX4(137) /* v2.07 */ +#define VMSUMUHM VX4(38) + +#define VMRGHB VX4(12) +#define VMRGHH VX4(76) +#define VMRGHW VX4(140) +#define VMRGLB VX4(268) +#define VMRGLH VX4(332) +#define VMRGLW VX4(396) + +#define VPKUHUM VX4(14) +#define VPKUWUM VX4(78) + +#define VAND VX4(1028) +#define VANDC VX4(1092) +#define VNOR VX4(1284) +#define VOR VX4(1156) +#define VXOR VX4(1220) +#define VEQV VX4(1668) /* v2.07 */ +#define VNAND VX4(1412) /* v2.07 */ +#define VORC VX4(1348) /* v2.07 */ + +#define VSPLTB VX4(524) +#define VSPLTH VX4(588) +#define VSPLTW VX4(652) +#define VSPLTISB VX4(780) +#define VSPLTISH VX4(844) +#define VSPLTISW VX4(908) + +#define VSLDOI VX4(44) + +#define XXPERMDI (OPCD(60) | (10 << 3) | 7) /* v2.06, force ax=bx=tx=1 */ +#define XXSEL (OPCD(60) | (3 << 4) | 0xf) /* v2.06, force ax=bx=cx=tx=1 */ +#define XXSPLTIB (OPCD(60) | (360 << 1) | 1) /* v3.00, force tx=1 */ + +#define MFVSRD (XO31(51) | 1) /* v2.07, force sx=1 */ +#define MFVSRWZ (XO31(115) | 1) /* v2.07, force sx=1 */ +#define MTVSRD (XO31(179) | 1) /* v2.07, force tx=1 */ +#define MTVSRWZ (XO31(243) | 1) /* v2.07, force tx=1 */ +#define MTVSRDD (XO31(435) | 1) /* v3.00, force tx=1 */ +#define MTVSRWS (XO31(403) | 1) /* v3.00, force tx=1 */ + +#define RT(r) ((r)<<21) +#define RS(r) ((r)<<21) +#define RA(r) ((r)<<16) +#define RB(r) ((r)<<11) +#define TO(t) ((t)<<21) +#define SH(s) ((s)<<11) +#define MB(b) ((b)<<6) +#define ME(e) ((e)<<1) +#define BO(o) ((o)<<21) +#define MB64(b) ((b)<<5) +#define FXM(b) (1 << (19 - (b))) + +#define VRT(r) (((r) & 31) << 21) +#define VRA(r) (((r) & 31) << 16) +#define VRB(r) (((r) & 31) << 11) +#define VRC(r) (((r) & 31) << 6) + +#define LK 1 + +#define TAB(t, a, b) (RT(t) | RA(a) | RB(b)) +#define SAB(s, a, b) (RS(s) | RA(a) | RB(b)) +#define TAI(s, a, i) (RT(s) | RA(a) | ((i) & 0xffff)) +#define SAI(s, a, i) (RS(s) | RA(a) | ((i) & 0xffff)) + +#define BF(n) ((n)<<23) +#define BI(n, c) (((c)+((n)*4))<<16) +#define BT(n, c) (((c)+((n)*4))<<21) +#define BA(n, c) (((c)+((n)*4))<<16) +#define BB(n, c) (((c)+((n)*4))<<11) +#define BC_(n, c) (((c)+((n)*4))<<6) + +#define BO_COND_TRUE BO(12) +#define BO_COND_FALSE BO( 4) +#define BO_ALWAYS BO(20) + +enum { + CR_LT, + CR_GT, + CR_EQ, + CR_SO +}; + +static const uint32_t tcg_to_bc[] = { + [TCG_COND_EQ] = BC | BI(7, CR_EQ) | BO_COND_TRUE, + [TCG_COND_NE] = BC | BI(7, CR_EQ) | BO_COND_FALSE, + [TCG_COND_LT] = BC | BI(7, CR_LT) | BO_COND_TRUE, + [TCG_COND_GE] = BC | BI(7, CR_LT) | BO_COND_FALSE, + [TCG_COND_LE] = BC | BI(7, CR_GT) | BO_COND_FALSE, + [TCG_COND_GT] = BC | BI(7, CR_GT) | BO_COND_TRUE, + [TCG_COND_LTU] = BC | BI(7, CR_LT) | BO_COND_TRUE, + [TCG_COND_GEU] = BC | BI(7, CR_LT) | BO_COND_FALSE, + [TCG_COND_LEU] = BC | BI(7, CR_GT) | BO_COND_FALSE, + [TCG_COND_GTU] = BC | BI(7, CR_GT) | BO_COND_TRUE, +}; + +/* The low bit here is set if the RA and RB fields must be inverted. */ +static const uint32_t tcg_to_isel[] = { + [TCG_COND_EQ] = ISEL | BC_(7, CR_EQ), + [TCG_COND_NE] = ISEL | BC_(7, CR_EQ) | 1, + [TCG_COND_LT] = ISEL | BC_(7, CR_LT), + [TCG_COND_GE] = ISEL | BC_(7, CR_LT) | 1, + [TCG_COND_LE] = ISEL | BC_(7, CR_GT) | 1, + [TCG_COND_GT] = ISEL | BC_(7, CR_GT), + [TCG_COND_LTU] = ISEL | BC_(7, CR_LT), + [TCG_COND_GEU] = ISEL | BC_(7, CR_LT) | 1, + [TCG_COND_LEU] = ISEL | BC_(7, CR_GT) | 1, + [TCG_COND_GTU] = ISEL | BC_(7, CR_GT), +}; + +static bool patch_reloc(tcg_insn_unit *code_ptr, int type, + intptr_t value, intptr_t addend) +{ + tcg_insn_unit *target; + int16_t lo; + int32_t hi; + + value += addend; + target = (tcg_insn_unit *)value; + + switch (type) { + case R_PPC_REL14: + return reloc_pc14(code_ptr, target); + case R_PPC_REL24: + return reloc_pc24(code_ptr, target); + case R_PPC_ADDR16: + /* + * We are (slightly) abusing this relocation type. In particular, + * assert that the low 2 bits are zero, and do not modify them. + * That way we can use this with LD et al that have opcode bits + * in the low 2 bits of the insn. + */ + if ((value & 3) || value != (int16_t)value) { + return false; + } + *code_ptr = (*code_ptr & ~0xfffc) | (value & 0xfffc); + break; + case R_PPC_ADDR32: + /* + * We are abusing this relocation type. Again, this points to + * a pair of insns, lis + load. This is an absolute address + * relocation for PPC32 so the lis cannot be removed. + */ + lo = value; + hi = value - lo; + if (hi + lo != value) { + return false; + } + code_ptr[0] = deposit32(code_ptr[0], 0, 16, hi >> 16); + code_ptr[1] = deposit32(code_ptr[1], 0, 16, lo); + break; + default: + g_assert_not_reached(); + } + return true; +} + +static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt, + TCGReg base, tcg_target_long offset); + +static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg) +{ + if (ret == arg) { + return true; + } + switch (type) { + case TCG_TYPE_I64: + tcg_debug_assert(TCG_TARGET_REG_BITS == 64); + /* fallthru */ + case TCG_TYPE_I32: + if (ret < TCG_REG_V0) { + if (arg < TCG_REG_V0) { + tcg_out32(s, OR | SAB(arg, ret, arg)); + break; + } else if (have_isa_2_07) { + tcg_out32(s, (type == TCG_TYPE_I32 ? MFVSRWZ : MFVSRD) + | VRT(arg) | RA(ret)); + break; + } else { + /* Altivec does not support vector->integer moves. */ + return false; + } + } else if (arg < TCG_REG_V0) { + if (have_isa_2_07) { + tcg_out32(s, (type == TCG_TYPE_I32 ? MTVSRWZ : MTVSRD) + | VRT(ret) | RA(arg)); + break; + } else { + /* Altivec does not support integer->vector moves. */ + return false; + } + } + /* fallthru */ + case TCG_TYPE_V64: + case TCG_TYPE_V128: + tcg_debug_assert(ret >= TCG_REG_V0 && arg >= TCG_REG_V0); + tcg_out32(s, VOR | VRT(ret) | VRA(arg) | VRB(arg)); + break; + default: + g_assert_not_reached(); + } + return true; +} + +static inline void tcg_out_rld(TCGContext *s, int op, TCGReg ra, TCGReg rs, + int sh, int mb) +{ + tcg_debug_assert(TCG_TARGET_REG_BITS == 64); + sh = SH(sh & 0x1f) | (((sh >> 5) & 1) << 1); + mb = MB64((mb >> 5) | ((mb << 1) & 0x3f)); + tcg_out32(s, op | RA(ra) | RS(rs) | sh | mb); +} + +static inline void tcg_out_rlw(TCGContext *s, int op, TCGReg ra, TCGReg rs, + int sh, int mb, int me) +{ + tcg_out32(s, op | RA(ra) | RS(rs) | SH(sh) | MB(mb) | ME(me)); +} + +static inline void tcg_out_ext32u(TCGContext *s, TCGReg dst, TCGReg src) +{ + tcg_out_rld(s, RLDICL, dst, src, 0, 32); +} + +static inline void tcg_out_shli32(TCGContext *s, TCGReg dst, TCGReg src, int c) +{ + tcg_out_rlw(s, RLWINM, dst, src, c, 0, 31 - c); +} + +static inline void tcg_out_shli64(TCGContext *s, TCGReg dst, TCGReg src, int c) +{ + tcg_out_rld(s, RLDICR, dst, src, c, 63 - c); +} + +static inline void tcg_out_shri32(TCGContext *s, TCGReg dst, TCGReg src, int c) +{ + tcg_out_rlw(s, RLWINM, dst, src, 32 - c, c, 31); +} + +static inline void tcg_out_shri64(TCGContext *s, TCGReg dst, TCGReg src, int c) +{ + tcg_out_rld(s, RLDICL, dst, src, 64 - c, c); +} + +/* Emit a move into ret of arg, if it can be done in one insn. */ +static bool tcg_out_movi_one(TCGContext *s, TCGReg ret, tcg_target_long arg) +{ + if (arg == (int16_t)arg) { + tcg_out32(s, ADDI | TAI(ret, 0, arg)); + return true; + } + if (arg == (int32_t)arg && (arg & 0xffff) == 0) { + tcg_out32(s, ADDIS | TAI(ret, 0, arg >> 16)); + return true; + } + return false; +} + +static void tcg_out_movi_int(TCGContext *s, TCGType type, TCGReg ret, + tcg_target_long arg, bool in_prologue) +{ + intptr_t tb_diff; + tcg_target_long tmp; + int shift; + + tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32); + + if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) { + arg = (int32_t)arg; + } + + /* Load 16-bit immediates with one insn. */ + if (tcg_out_movi_one(s, ret, arg)) { + return; + } + + /* Load addresses within the TB with one insn. */ + tb_diff = arg - (intptr_t)s->code_gen_ptr; + if (!in_prologue && USE_REG_TB && tb_diff == (int16_t)tb_diff) { + tcg_out32(s, ADDI | TAI(ret, TCG_REG_TB, tb_diff)); + return; + } + + /* Load 32-bit immediates with two insns. Note that we've already + eliminated bare ADDIS, so we know both insns are required. */ + if (TCG_TARGET_REG_BITS == 32 || arg == (int32_t)arg) { + tcg_out32(s, ADDIS | TAI(ret, 0, arg >> 16)); + tcg_out32(s, ORI | SAI(ret, ret, arg)); + return; + } + if (arg == (uint32_t)arg && !(arg & 0x8000)) { + tcg_out32(s, ADDI | TAI(ret, 0, arg)); + tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16)); + return; + } + + /* Load masked 16-bit value. */ + if (arg > 0 && (arg & 0x8000)) { + tmp = arg | 0x7fff; + if ((tmp & (tmp + 1)) == 0) { + int mb = clz64(tmp + 1) + 1; + tcg_out32(s, ADDI | TAI(ret, 0, arg)); + tcg_out_rld(s, RLDICL, ret, ret, 0, mb); + return; + } + } + + /* Load common masks with 2 insns. */ + shift = ctz64(arg); + tmp = arg >> shift; + if (tmp == (int16_t)tmp) { + tcg_out32(s, ADDI | TAI(ret, 0, tmp)); + tcg_out_shli64(s, ret, ret, shift); + return; + } + shift = clz64(arg); + if (tcg_out_movi_one(s, ret, arg << shift)) { + tcg_out_shri64(s, ret, ret, shift); + return; + } + + /* Load addresses within 2GB of TB with 2 (or rarely 3) insns. */ + if (!in_prologue && USE_REG_TB && tb_diff == (int32_t)tb_diff) { + tcg_out_mem_long(s, ADDI, ADD, ret, TCG_REG_TB, tb_diff); + return; + } + + /* Use the constant pool, if possible. */ + if (!in_prologue && USE_REG_TB) { + new_pool_label(s, arg, R_PPC_ADDR16, s->code_ptr, + -(intptr_t)s->code_gen_ptr); + tcg_out32(s, LD | TAI(ret, TCG_REG_TB, 0)); + return; + } + + tmp = arg >> 31 >> 1; + tcg_out_movi(s, TCG_TYPE_I32, ret, tmp); + if (tmp) { + tcg_out_shli64(s, ret, ret, 32); + } + if (arg & 0xffff0000) { + tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16)); + } + if (arg & 0xffff) { + tcg_out32(s, ORI | SAI(ret, ret, arg)); + } +} + +static void tcg_out_dupi_vec(TCGContext *s, TCGType type, TCGReg ret, + tcg_target_long val) +{ + uint32_t load_insn; + int rel, low; + intptr_t add; + + low = (int8_t)val; + if (low >= -16 && low < 16) { + if (val == (tcg_target_long)dup_const(MO_8, low)) { + tcg_out32(s, VSPLTISB | VRT(ret) | ((val & 31) << 16)); + return; + } + if (val == (tcg_target_long)dup_const(MO_16, low)) { + tcg_out32(s, VSPLTISH | VRT(ret) | ((val & 31) << 16)); + return; + } + if (val == (tcg_target_long)dup_const(MO_32, low)) { + tcg_out32(s, VSPLTISW | VRT(ret) | ((val & 31) << 16)); + return; + } + } + if (have_isa_3_00 && val == (tcg_target_long)dup_const(MO_8, val)) { + tcg_out32(s, XXSPLTIB | VRT(ret) | ((val & 0xff) << 11)); + return; + } + + /* + * Otherwise we must load the value from the constant pool. + */ + if (USE_REG_TB) { + rel = R_PPC_ADDR16; + add = -(intptr_t)s->code_gen_ptr; + } else { + rel = R_PPC_ADDR32; + add = 0; + } + + if (have_vsx) { + load_insn = type == TCG_TYPE_V64 ? LXSDX : LXVDSX; + load_insn |= VRT(ret) | RB(TCG_REG_TMP1); + if (TCG_TARGET_REG_BITS == 64) { + new_pool_label(s, val, rel, s->code_ptr, add); + } else { + new_pool_l2(s, rel, s->code_ptr, add, val, val); + } + } else { + load_insn = LVX | VRT(ret) | RB(TCG_REG_TMP1); + if (TCG_TARGET_REG_BITS == 64) { + new_pool_l2(s, rel, s->code_ptr, add, val, val); + } else { + new_pool_l4(s, rel, s->code_ptr, add, val, val, val, val); + } + } + + if (USE_REG_TB) { + tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, 0, 0)); + load_insn |= RA(TCG_REG_TB); + } else { + tcg_out32(s, ADDIS | TAI(TCG_REG_TMP1, 0, 0)); + tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, TCG_REG_TMP1, 0)); + } + tcg_out32(s, load_insn); +} + +static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg ret, + tcg_target_long arg) +{ + switch (type) { + case TCG_TYPE_I32: + case TCG_TYPE_I64: + tcg_debug_assert(ret < TCG_REG_V0); + tcg_out_movi_int(s, type, ret, arg, false); + break; + + case TCG_TYPE_V64: + case TCG_TYPE_V128: + tcg_debug_assert(ret >= TCG_REG_V0); + tcg_out_dupi_vec(s, type, ret, arg); + break; + + default: + g_assert_not_reached(); + } +} + +static bool mask_operand(uint32_t c, int *mb, int *me) +{ + uint32_t lsb, test; + + /* Accept a bit pattern like: + 0....01....1 + 1....10....0 + 0..01..10..0 + Keep track of the transitions. */ + if (c == 0 || c == -1) { + return false; + } + test = c; + lsb = test & -test; + test += lsb; + if (test & (test - 1)) { + return false; + } + + *me = clz32(lsb); + *mb = test ? clz32(test & -test) + 1 : 0; + return true; +} + +static bool mask64_operand(uint64_t c, int *mb, int *me) +{ + uint64_t lsb; + + if (c == 0) { + return false; + } + + lsb = c & -c; + /* Accept 1..10..0. */ + if (c == -lsb) { + *mb = 0; + *me = clz64(lsb); + return true; + } + /* Accept 0..01..1. */ + if (lsb == 1 && (c & (c + 1)) == 0) { + *mb = clz64(c + 1) + 1; + *me = 63; + return true; + } + return false; +} + +static void tcg_out_andi32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c) +{ + int mb, me; + + if (mask_operand(c, &mb, &me)) { + tcg_out_rlw(s, RLWINM, dst, src, 0, mb, me); + } else if ((c & 0xffff) == c) { + tcg_out32(s, ANDI | SAI(src, dst, c)); + return; + } else if ((c & 0xffff0000) == c) { + tcg_out32(s, ANDIS | SAI(src, dst, c >> 16)); + return; + } else { + tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R0, c); + tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0)); + } +} + +static void tcg_out_andi64(TCGContext *s, TCGReg dst, TCGReg src, uint64_t c) +{ + int mb, me; + + tcg_debug_assert(TCG_TARGET_REG_BITS == 64); + if (mask64_operand(c, &mb, &me)) { + if (mb == 0) { + tcg_out_rld(s, RLDICR, dst, src, 0, me); + } else { + tcg_out_rld(s, RLDICL, dst, src, 0, mb); + } + } else if ((c & 0xffff) == c) { + tcg_out32(s, ANDI | SAI(src, dst, c)); + return; + } else if ((c & 0xffff0000) == c) { + tcg_out32(s, ANDIS | SAI(src, dst, c >> 16)); + return; + } else { + tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, c); + tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0)); + } +} + +static void tcg_out_zori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c, + int op_lo, int op_hi) +{ + if (c >> 16) { + tcg_out32(s, op_hi | SAI(src, dst, c >> 16)); + src = dst; + } + if (c & 0xffff) { + tcg_out32(s, op_lo | SAI(src, dst, c)); + src = dst; + } +} + +static void tcg_out_ori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c) +{ + tcg_out_zori32(s, dst, src, c, ORI, ORIS); +} + +static void tcg_out_xori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c) +{ + tcg_out_zori32(s, dst, src, c, XORI, XORIS); +} + +static void tcg_out_b(TCGContext *s, int mask, tcg_insn_unit *target) +{ + ptrdiff_t disp = tcg_pcrel_diff(s, target); + if (in_range_b(disp)) { + tcg_out32(s, B | (disp & 0x3fffffc) | mask); + } else { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, (uintptr_t)target); + tcg_out32(s, MTSPR | RS(TCG_REG_R0) | CTR); + tcg_out32(s, BCCTR | BO_ALWAYS | mask); + } +} + +static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt, + TCGReg base, tcg_target_long offset) +{ + tcg_target_long orig = offset, l0, l1, extra = 0, align = 0; + bool is_int_store = false; + TCGReg rs = TCG_REG_TMP1; + + switch (opi) { + case LD: case LWA: + align = 3; + /* FALLTHRU */ + default: + if (rt > TCG_REG_R0 && rt < TCG_REG_V0) { + rs = rt; + break; + } + break; + case LXSD: + case STXSD: + align = 3; + break; + case LXV: + case STXV: + align = 15; + break; + case STD: + align = 3; + /* FALLTHRU */ + case STB: case STH: case STW: + is_int_store = true; + break; + } + + /* For unaligned, or very large offsets, use the indexed form. */ + if (offset & align || offset != (int32_t)offset || opi == 0) { + if (rs == base) { + rs = TCG_REG_R0; + } + tcg_debug_assert(!is_int_store || rs != rt); + tcg_out_movi(s, TCG_TYPE_PTR, rs, orig); + tcg_out32(s, opx | TAB(rt & 31, base, rs)); + return; + } + + l0 = (int16_t)offset; + offset = (offset - l0) >> 16; + l1 = (int16_t)offset; + + if (l1 < 0 && orig >= 0) { + extra = 0x4000; + l1 = (int16_t)(offset - 0x4000); + } + if (l1) { + tcg_out32(s, ADDIS | TAI(rs, base, l1)); + base = rs; + } + if (extra) { + tcg_out32(s, ADDIS | TAI(rs, base, extra)); + base = rs; + } + if (opi != ADDI || base != rt || l0 != 0) { + tcg_out32(s, opi | TAI(rt & 31, base, l0)); + } +} + +static void tcg_out_vsldoi(TCGContext *s, TCGReg ret, + TCGReg va, TCGReg vb, int shb) +{ + tcg_out32(s, VSLDOI | VRT(ret) | VRA(va) | VRB(vb) | (shb << 6)); +} + +static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, + TCGReg base, intptr_t offset) +{ + int shift; + + switch (type) { + case TCG_TYPE_I32: + if (ret < TCG_REG_V0) { + tcg_out_mem_long(s, LWZ, LWZX, ret, base, offset); + break; + } + if (have_isa_2_07 && have_vsx) { + tcg_out_mem_long(s, 0, LXSIWZX, ret, base, offset); + break; + } + tcg_debug_assert((offset & 3) == 0); + tcg_out_mem_long(s, 0, LVEWX, ret, base, offset); + shift = (offset - 4) & 0xc; + if (shift) { + tcg_out_vsldoi(s, ret, ret, ret, shift); + } + break; + case TCG_TYPE_I64: + if (ret < TCG_REG_V0) { + tcg_debug_assert(TCG_TARGET_REG_BITS == 64); + tcg_out_mem_long(s, LD, LDX, ret, base, offset); + break; + } + /* fallthru */ + case TCG_TYPE_V64: + tcg_debug_assert(ret >= TCG_REG_V0); + if (have_vsx) { + tcg_out_mem_long(s, have_isa_3_00 ? LXSD : 0, LXSDX, + ret, base, offset); + break; + } + tcg_debug_assert((offset & 7) == 0); + tcg_out_mem_long(s, 0, LVX, ret, base, offset & -16); + if (offset & 8) { + tcg_out_vsldoi(s, ret, ret, ret, 8); + } + break; + case TCG_TYPE_V128: + tcg_debug_assert(ret >= TCG_REG_V0); + tcg_debug_assert((offset & 15) == 0); + tcg_out_mem_long(s, have_isa_3_00 ? LXV : 0, + LVX, ret, base, offset); + break; + default: + g_assert_not_reached(); + } +} + +static void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, + TCGReg base, intptr_t offset) +{ + int shift; + + switch (type) { + case TCG_TYPE_I32: + if (arg < TCG_REG_V0) { + tcg_out_mem_long(s, STW, STWX, arg, base, offset); + break; + } + if (have_isa_2_07 && have_vsx) { + tcg_out_mem_long(s, 0, STXSIWX, arg, base, offset); + break; + } + assert((offset & 3) == 0); + tcg_debug_assert((offset & 3) == 0); + shift = (offset - 4) & 0xc; + if (shift) { + tcg_out_vsldoi(s, TCG_VEC_TMP1, arg, arg, shift); + arg = TCG_VEC_TMP1; + } + tcg_out_mem_long(s, 0, STVEWX, arg, base, offset); + break; + case TCG_TYPE_I64: + if (arg < TCG_REG_V0) { + tcg_debug_assert(TCG_TARGET_REG_BITS == 64); + tcg_out_mem_long(s, STD, STDX, arg, base, offset); + break; + } + /* fallthru */ + case TCG_TYPE_V64: + tcg_debug_assert(arg >= TCG_REG_V0); + if (have_vsx) { + tcg_out_mem_long(s, have_isa_3_00 ? STXSD : 0, + STXSDX, arg, base, offset); + break; + } + tcg_debug_assert((offset & 7) == 0); + if (offset & 8) { + tcg_out_vsldoi(s, TCG_VEC_TMP1, arg, arg, 8); + arg = TCG_VEC_TMP1; + } + tcg_out_mem_long(s, 0, STVEWX, arg, base, offset); + tcg_out_mem_long(s, 0, STVEWX, arg, base, offset + 4); + break; + case TCG_TYPE_V128: + tcg_debug_assert(arg >= TCG_REG_V0); + tcg_out_mem_long(s, have_isa_3_00 ? STXV : 0, + STVX, arg, base, offset); + break; + default: + g_assert_not_reached(); + } +} + +static inline bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val, + TCGReg base, intptr_t ofs) +{ + return false; +} + +static void tcg_out_cmp(TCGContext *s, int cond, TCGArg arg1, TCGArg arg2, + int const_arg2, int cr, TCGType type) +{ + int imm; + uint32_t op; + + tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32); + + /* Simplify the comparisons below wrt CMPI. */ + if (type == TCG_TYPE_I32) { + arg2 = (int32_t)arg2; + } + + switch (cond) { + case TCG_COND_EQ: + case TCG_COND_NE: + if (const_arg2) { + if ((int16_t) arg2 == arg2) { + op = CMPI; + imm = 1; + break; + } else if ((uint16_t) arg2 == arg2) { + op = CMPLI; + imm = 1; + break; + } + } + op = CMPL; + imm = 0; + break; + + case TCG_COND_LT: + case TCG_COND_GE: + case TCG_COND_LE: + case TCG_COND_GT: + if (const_arg2) { + if ((int16_t) arg2 == arg2) { + op = CMPI; + imm = 1; + break; + } + } + op = CMP; + imm = 0; + break; + + case TCG_COND_LTU: + case TCG_COND_GEU: + case TCG_COND_LEU: + case TCG_COND_GTU: + if (const_arg2) { + if ((uint16_t) arg2 == arg2) { + op = CMPLI; + imm = 1; + break; + } + } + op = CMPL; + imm = 0; + break; + + default: + tcg_abort(); + } + op |= BF(cr) | ((type == TCG_TYPE_I64) << 21); + + if (imm) { + tcg_out32(s, op | RA(arg1) | (arg2 & 0xffff)); + } else { + if (const_arg2) { + tcg_out_movi(s, type, TCG_REG_R0, arg2); + arg2 = TCG_REG_R0; + } + tcg_out32(s, op | RA(arg1) | RB(arg2)); + } +} + +static void tcg_out_setcond_eq0(TCGContext *s, TCGType type, + TCGReg dst, TCGReg src) +{ + if (type == TCG_TYPE_I32) { + tcg_out32(s, CNTLZW | RS(src) | RA(dst)); + tcg_out_shri32(s, dst, dst, 5); + } else { + tcg_out32(s, CNTLZD | RS(src) | RA(dst)); + tcg_out_shri64(s, dst, dst, 6); + } +} + +static void tcg_out_setcond_ne0(TCGContext *s, TCGReg dst, TCGReg src) +{ + /* X != 0 implies X + -1 generates a carry. Extra addition + trickery means: R = X-1 + ~X + C = X-1 + (-X+1) + C = C. */ + if (dst != src) { + tcg_out32(s, ADDIC | TAI(dst, src, -1)); + tcg_out32(s, SUBFE | TAB(dst, dst, src)); + } else { + tcg_out32(s, ADDIC | TAI(TCG_REG_R0, src, -1)); + tcg_out32(s, SUBFE | TAB(dst, TCG_REG_R0, src)); + } +} + +static TCGReg tcg_gen_setcond_xor(TCGContext *s, TCGReg arg1, TCGArg arg2, + bool const_arg2) +{ + if (const_arg2) { + if ((uint32_t)arg2 == arg2) { + tcg_out_xori32(s, TCG_REG_R0, arg1, arg2); + } else { + tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, arg2); + tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, TCG_REG_R0)); + } + } else { + tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, arg2)); + } + return TCG_REG_R0; +} + +static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond, + TCGArg arg0, TCGArg arg1, TCGArg arg2, + int const_arg2) +{ + int crop, sh; + + tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32); + + /* Ignore high bits of a potential constant arg2. */ + if (type == TCG_TYPE_I32) { + arg2 = (uint32_t)arg2; + } + + /* Handle common and trivial cases before handling anything else. */ + if (arg2 == 0) { + switch (cond) { + case TCG_COND_EQ: + tcg_out_setcond_eq0(s, type, arg0, arg1); + return; + case TCG_COND_NE: + if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) { + tcg_out_ext32u(s, TCG_REG_R0, arg1); + arg1 = TCG_REG_R0; + } + tcg_out_setcond_ne0(s, arg0, arg1); + return; + case TCG_COND_GE: + tcg_out32(s, NOR | SAB(arg1, arg0, arg1)); + arg1 = arg0; + /* FALLTHRU */ + case TCG_COND_LT: + /* Extract the sign bit. */ + if (type == TCG_TYPE_I32) { + tcg_out_shri32(s, arg0, arg1, 31); + } else { + tcg_out_shri64(s, arg0, arg1, 63); + } + return; + default: + break; + } + } + + /* If we have ISEL, we can implement everything with 3 or 4 insns. + All other cases below are also at least 3 insns, so speed up the + code generator by not considering them and always using ISEL. */ + if (have_isel) { + int isel, tab; + + tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type); + + isel = tcg_to_isel[cond]; + + tcg_out_movi(s, type, arg0, 1); + if (isel & 1) { + /* arg0 = (bc ? 0 : 1) */ + tab = TAB(arg0, 0, arg0); + isel &= ~1; + } else { + /* arg0 = (bc ? 1 : 0) */ + tcg_out_movi(s, type, TCG_REG_R0, 0); + tab = TAB(arg0, arg0, TCG_REG_R0); + } + tcg_out32(s, isel | tab); + return; + } + + switch (cond) { + case TCG_COND_EQ: + arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2); + tcg_out_setcond_eq0(s, type, arg0, arg1); + return; + + case TCG_COND_NE: + arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2); + /* Discard the high bits only once, rather than both inputs. */ + if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) { + tcg_out_ext32u(s, TCG_REG_R0, arg1); + arg1 = TCG_REG_R0; + } + tcg_out_setcond_ne0(s, arg0, arg1); + return; + + case TCG_COND_GT: + case TCG_COND_GTU: + sh = 30; + crop = 0; + goto crtest; + + case TCG_COND_LT: + case TCG_COND_LTU: + sh = 29; + crop = 0; + goto crtest; + + case TCG_COND_GE: + case TCG_COND_GEU: + sh = 31; + crop = CRNOR | BT(7, CR_EQ) | BA(7, CR_LT) | BB(7, CR_LT); + goto crtest; + + case TCG_COND_LE: + case TCG_COND_LEU: + sh = 31; + crop = CRNOR | BT(7, CR_EQ) | BA(7, CR_GT) | BB(7, CR_GT); + crtest: + tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type); + if (crop) { + tcg_out32(s, crop); + } + tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7)); + tcg_out_rlw(s, RLWINM, arg0, TCG_REG_R0, sh, 31, 31); + break; + + default: + tcg_abort(); + } +} + +static void tcg_out_bc(TCGContext *s, int bc, TCGLabel *l) +{ + if (l->has_value) { + bc |= reloc_pc14_val(s->code_ptr, l->u.value_ptr); + } else { + tcg_out_reloc(s, s->code_ptr, R_PPC_REL14, l, 0); + } + tcg_out32(s, bc); +} + +static void tcg_out_brcond(TCGContext *s, TCGCond cond, + TCGArg arg1, TCGArg arg2, int const_arg2, + TCGLabel *l, TCGType type) +{ + tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type); + tcg_out_bc(s, tcg_to_bc[cond], l); +} + +static void tcg_out_movcond(TCGContext *s, TCGType type, TCGCond cond, + TCGArg dest, TCGArg c1, TCGArg c2, TCGArg v1, + TCGArg v2, bool const_c2) +{ + /* If for some reason both inputs are zero, don't produce bad code. */ + if (v1 == 0 && v2 == 0) { + tcg_out_movi(s, type, dest, 0); + return; + } + + tcg_out_cmp(s, cond, c1, c2, const_c2, 7, type); + + if (have_isel) { + int isel = tcg_to_isel[cond]; + + /* Swap the V operands if the operation indicates inversion. */ + if (isel & 1) { + int t = v1; + v1 = v2; + v2 = t; + isel &= ~1; + } + /* V1 == 0 is handled by isel; V2 == 0 must be handled by hand. */ + if (v2 == 0) { + tcg_out_movi(s, type, TCG_REG_R0, 0); + } + tcg_out32(s, isel | TAB(dest, v1, v2)); + } else { + if (dest == v2) { + cond = tcg_invert_cond(cond); + v2 = v1; + } else if (dest != v1) { + if (v1 == 0) { + tcg_out_movi(s, type, dest, 0); + } else { + tcg_out_mov(s, type, dest, v1); + } + } + /* Branch forward over one insn */ + tcg_out32(s, tcg_to_bc[cond] | 8); + if (v2 == 0) { + tcg_out_movi(s, type, dest, 0); + } else { + tcg_out_mov(s, type, dest, v2); + } + } +} + +static void tcg_out_cntxz(TCGContext *s, TCGType type, uint32_t opc, + TCGArg a0, TCGArg a1, TCGArg a2, bool const_a2) +{ + if (const_a2 && a2 == (type == TCG_TYPE_I32 ? 32 : 64)) { + tcg_out32(s, opc | RA(a0) | RS(a1)); + } else { + tcg_out_cmp(s, TCG_COND_EQ, a1, 0, 1, 7, type); + /* Note that the only other valid constant for a2 is 0. */ + if (have_isel) { + tcg_out32(s, opc | RA(TCG_REG_R0) | RS(a1)); + tcg_out32(s, tcg_to_isel[TCG_COND_EQ] | TAB(a0, a2, TCG_REG_R0)); + } else if (!const_a2 && a0 == a2) { + tcg_out32(s, tcg_to_bc[TCG_COND_EQ] | 8); + tcg_out32(s, opc | RA(a0) | RS(a1)); + } else { + tcg_out32(s, opc | RA(a0) | RS(a1)); + tcg_out32(s, tcg_to_bc[TCG_COND_NE] | 8); + if (const_a2) { + tcg_out_movi(s, type, a0, 0); + } else { + tcg_out_mov(s, type, a0, a2); + } + } + } +} + +static void tcg_out_cmp2(TCGContext *s, const TCGArg *args, + const int *const_args) +{ + static const struct { uint8_t bit1, bit2; } bits[] = { + [TCG_COND_LT ] = { CR_LT, CR_LT }, + [TCG_COND_LE ] = { CR_LT, CR_GT }, + [TCG_COND_GT ] = { CR_GT, CR_GT }, + [TCG_COND_GE ] = { CR_GT, CR_LT }, + [TCG_COND_LTU] = { CR_LT, CR_LT }, + [TCG_COND_LEU] = { CR_LT, CR_GT }, + [TCG_COND_GTU] = { CR_GT, CR_GT }, + [TCG_COND_GEU] = { CR_GT, CR_LT }, + }; + + TCGCond cond = args[4], cond2; + TCGArg al, ah, bl, bh; + int blconst, bhconst; + int op, bit1, bit2; + + al = args[0]; + ah = args[1]; + bl = args[2]; + bh = args[3]; + blconst = const_args[2]; + bhconst = const_args[3]; + + switch (cond) { + case TCG_COND_EQ: + op = CRAND; + goto do_equality; + case TCG_COND_NE: + op = CRNAND; + do_equality: + tcg_out_cmp(s, cond, al, bl, blconst, 6, TCG_TYPE_I32); + tcg_out_cmp(s, cond, ah, bh, bhconst, 7, TCG_TYPE_I32); + tcg_out32(s, op | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); + break; + + case TCG_COND_LT: + case TCG_COND_LE: + case TCG_COND_GT: + case TCG_COND_GE: + case TCG_COND_LTU: + case TCG_COND_LEU: + case TCG_COND_GTU: + case TCG_COND_GEU: + bit1 = bits[cond].bit1; + bit2 = bits[cond].bit2; + op = (bit1 != bit2 ? CRANDC : CRAND); + cond2 = tcg_unsigned_cond(cond); + + tcg_out_cmp(s, cond, ah, bh, bhconst, 6, TCG_TYPE_I32); + tcg_out_cmp(s, cond2, al, bl, blconst, 7, TCG_TYPE_I32); + tcg_out32(s, op | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, bit2)); + tcg_out32(s, CROR | BT(7, CR_EQ) | BA(6, bit1) | BB(7, CR_EQ)); + break; + + default: + tcg_abort(); + } +} + +static void tcg_out_setcond2(TCGContext *s, const TCGArg *args, + const int *const_args) +{ + tcg_out_cmp2(s, args + 1, const_args + 1); + tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7)); + tcg_out_rlw(s, RLWINM, args[0], TCG_REG_R0, 31, 31, 31); +} + +static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args, + const int *const_args) +{ + tcg_out_cmp2(s, args, const_args); + tcg_out_bc(s, BC | BI(7, CR_EQ) | BO_COND_TRUE, arg_label(args[5])); +} + +static void tcg_out_mb(TCGContext *s, TCGArg a0) +{ + uint32_t insn = HWSYNC; + a0 &= TCG_MO_ALL; + if (a0 == TCG_MO_LD_LD) { + insn = LWSYNC; + } else if (a0 == TCG_MO_ST_ST) { + insn = EIEIO; + } + tcg_out32(s, insn); +} + +void tb_target_set_jmp_target(uintptr_t tc_ptr, uintptr_t jmp_addr, + uintptr_t addr) +{ + if (TCG_TARGET_REG_BITS == 64) { + tcg_insn_unit i1, i2; + intptr_t tb_diff = addr - tc_ptr; + intptr_t br_diff = addr - (jmp_addr + 4); + uint64_t pair; + + /* This does not exercise the range of the branch, but we do + still need to be able to load the new value of TCG_REG_TB. + But this does still happen quite often. */ + if (tb_diff == (int16_t)tb_diff) { + i1 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, tb_diff); + i2 = B | (br_diff & 0x3fffffc); + } else { + intptr_t lo = (int16_t)tb_diff; + intptr_t hi = (int32_t)(tb_diff - lo); + assert(tb_diff == hi + lo); + i1 = ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, hi >> 16); + i2 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, lo); + } +#ifdef HOST_WORDS_BIGENDIAN + pair = (uint64_t)i1 << 32 | i2; +#else + pair = (uint64_t)i2 << 32 | i1; +#endif + + /* As per the enclosing if, this is ppc64. Avoid the _Static_assert + within atomic_set that would fail to build a ppc32 host. */ + atomic_set__nocheck((uint64_t *)jmp_addr, pair); + flush_icache_range(jmp_addr, jmp_addr + 8); + } else { + intptr_t diff = addr - jmp_addr; + tcg_debug_assert(in_range_b(diff)); + atomic_set((uint32_t *)jmp_addr, B | (diff & 0x3fffffc)); + flush_icache_range(jmp_addr, jmp_addr + 4); + } +} + +static void tcg_out_call(TCGContext *s, tcg_insn_unit *target) +{ +#ifdef _CALL_AIX + /* Look through the descriptor. If the branch is in range, and we + don't have to spend too much effort on building the toc. */ + void *tgt = ((void **)target)[0]; + uintptr_t toc = ((uintptr_t *)target)[1]; + intptr_t diff = tcg_pcrel_diff(s, tgt); + + if (in_range_b(diff) && toc == (uint32_t)toc) { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, toc); + tcg_out_b(s, LK, tgt); + } else { + /* Fold the low bits of the constant into the addresses below. */ + intptr_t arg = (intptr_t)target; + int ofs = (int16_t)arg; + + if (ofs + 8 < 0x8000) { + arg -= ofs; + } else { + ofs = 0; + } + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, arg); + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_TMP1, ofs); + tcg_out32(s, MTSPR | RA(TCG_REG_R0) | CTR); + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R2, TCG_REG_TMP1, ofs + SZP); + tcg_out32(s, BCCTR | BO_ALWAYS | LK); + } +#elif defined(_CALL_ELF) && _CALL_ELF == 2 + intptr_t diff; + + /* In the ELFv2 ABI, we have to set up r12 to contain the destination + address, which the callee uses to compute its TOC address. */ + /* FIXME: when the branch is in range, we could avoid r12 load if we + knew that the destination uses the same TOC, and what its local + entry point offset is. */ + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R12, (intptr_t)target); + + diff = tcg_pcrel_diff(s, target); + if (in_range_b(diff)) { + tcg_out_b(s, LK, target); + } else { + tcg_out32(s, MTSPR | RS(TCG_REG_R12) | CTR); + tcg_out32(s, BCCTR | BO_ALWAYS | LK); + } +#else + tcg_out_b(s, LK, target); +#endif +} + +static const uint32_t qemu_ldx_opc[16] = { + [MO_UB] = LBZX, + [MO_UW] = LHZX, + [MO_UL] = LWZX, + [MO_Q] = LDX, + [MO_SW] = LHAX, + [MO_SL] = LWAX, + [MO_BSWAP | MO_UB] = LBZX, + [MO_BSWAP | MO_UW] = LHBRX, + [MO_BSWAP | MO_UL] = LWBRX, + [MO_BSWAP | MO_Q] = LDBRX, +}; + +static const uint32_t qemu_stx_opc[16] = { + [MO_UB] = STBX, + [MO_UW] = STHX, + [MO_UL] = STWX, + [MO_Q] = STDX, + [MO_BSWAP | MO_UB] = STBX, + [MO_BSWAP | MO_UW] = STHBRX, + [MO_BSWAP | MO_UL] = STWBRX, + [MO_BSWAP | MO_Q] = STDBRX, +}; + +static const uint32_t qemu_exts_opc[4] = { + EXTSB, EXTSH, EXTSW, 0 +}; + +#if defined (CONFIG_SOFTMMU) +#include "../tcg-ldst.c.inc" + +/* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr, + * int mmu_idx, uintptr_t ra) + */ +static void * const qemu_ld_helpers[16] = { + [MO_UB] = helper_ret_ldub_mmu, + [MO_LEUW] = helper_le_lduw_mmu, + [MO_LEUL] = helper_le_ldul_mmu, + [MO_LEQ] = helper_le_ldq_mmu, + [MO_BEUW] = helper_be_lduw_mmu, + [MO_BEUL] = helper_be_ldul_mmu, + [MO_BEQ] = helper_be_ldq_mmu, +}; + +/* helper signature: helper_st_mmu(CPUState *env, target_ulong addr, + * uintxx_t val, int mmu_idx, uintptr_t ra) + */ +static void * const qemu_st_helpers[16] = { + [MO_UB] = helper_ret_stb_mmu, + [MO_LEUW] = helper_le_stw_mmu, + [MO_LEUL] = helper_le_stl_mmu, + [MO_LEQ] = helper_le_stq_mmu, + [MO_BEUW] = helper_be_stw_mmu, + [MO_BEUL] = helper_be_stl_mmu, + [MO_BEQ] = helper_be_stq_mmu, +}; + +/* We expect to use a 16-bit negative offset from ENV. */ +QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) > 0); +QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) < -32768); + +/* Perform the TLB load and compare. Places the result of the comparison + in CR7, loads the addend of the TLB into R3, and returns the register + containing the guest address (zero-extended into R4). Clobbers R0 and R2. */ + +static TCGReg tcg_out_tlb_read(TCGContext *s, MemOp opc, + TCGReg addrlo, TCGReg addrhi, + int mem_index, bool is_read) +{ + int cmp_off + = (is_read + ? offsetof(CPUTLBEntry, addr_read) + : offsetof(CPUTLBEntry, addr_write)); + int fast_off = TLB_MASK_TABLE_OFS(mem_index); + int mask_off = fast_off + offsetof(CPUTLBDescFast, mask); + int table_off = fast_off + offsetof(CPUTLBDescFast, table); + unsigned s_bits = opc & MO_SIZE; + unsigned a_bits = get_alignment_bits(opc); + + /* Load tlb_mask[mmu_idx] and tlb_table[mmu_idx]. */ + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R3, TCG_AREG0, mask_off); + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R4, TCG_AREG0, table_off); + + /* Extract the page index, shifted into place for tlb index. */ + if (TCG_TARGET_REG_BITS == 32) { + tcg_out_shri32(s, TCG_REG_TMP1, addrlo, + TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); + } else { + tcg_out_shri64(s, TCG_REG_TMP1, addrlo, + TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); + } + tcg_out32(s, AND | SAB(TCG_REG_R3, TCG_REG_R3, TCG_REG_TMP1)); + + /* Load the TLB comparator. */ + if (cmp_off == 0 && TCG_TARGET_REG_BITS >= TARGET_LONG_BITS) { + uint32_t lxu = (TCG_TARGET_REG_BITS == 32 || TARGET_LONG_BITS == 32 + ? LWZUX : LDUX); + tcg_out32(s, lxu | TAB(TCG_REG_TMP1, TCG_REG_R3, TCG_REG_R4)); + } else { + tcg_out32(s, ADD | TAB(TCG_REG_R3, TCG_REG_R3, TCG_REG_R4)); + if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) { + tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_TMP1, TCG_REG_R3, cmp_off + 4); + tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_R4, TCG_REG_R3, cmp_off); + } else { + tcg_out_ld(s, TCG_TYPE_TL, TCG_REG_TMP1, TCG_REG_R3, cmp_off); + } + } + + /* Load the TLB addend for use on the fast path. Do this asap + to minimize any load use delay. */ + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R3, TCG_REG_R3, + offsetof(CPUTLBEntry, addend)); + + /* Clear the non-page, non-alignment bits from the address */ + if (TCG_TARGET_REG_BITS == 32) { + /* We don't support unaligned accesses on 32-bits. + * Preserve the bottom bits and thus trigger a comparison + * failure on unaligned accesses. + */ + if (a_bits < s_bits) { + a_bits = s_bits; + } + tcg_out_rlw(s, RLWINM, TCG_REG_R0, addrlo, 0, + (32 - a_bits) & 31, 31 - TARGET_PAGE_BITS); + } else { + TCGReg t = addrlo; + + /* If the access is unaligned, we need to make sure we fail if we + * cross a page boundary. The trick is to add the access size-1 + * to the address before masking the low bits. That will make the + * address overflow to the next page if we cross a page boundary, + * which will then force a mismatch of the TLB compare. + */ + if (a_bits < s_bits) { + unsigned a_mask = (1 << a_bits) - 1; + unsigned s_mask = (1 << s_bits) - 1; + tcg_out32(s, ADDI | TAI(TCG_REG_R0, t, s_mask - a_mask)); + t = TCG_REG_R0; + } + + /* Mask the address for the requested alignment. */ + if (TARGET_LONG_BITS == 32) { + tcg_out_rlw(s, RLWINM, TCG_REG_R0, t, 0, + (32 - a_bits) & 31, 31 - TARGET_PAGE_BITS); + /* Zero-extend the address for use in the final address. */ + tcg_out_ext32u(s, TCG_REG_R4, addrlo); + addrlo = TCG_REG_R4; + } else if (a_bits == 0) { + tcg_out_rld(s, RLDICR, TCG_REG_R0, t, 0, 63 - TARGET_PAGE_BITS); + } else { + tcg_out_rld(s, RLDICL, TCG_REG_R0, t, + 64 - TARGET_PAGE_BITS, TARGET_PAGE_BITS - a_bits); + tcg_out_rld(s, RLDICL, TCG_REG_R0, TCG_REG_R0, TARGET_PAGE_BITS, 0); + } + } + + if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) { + tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP1, + 0, 7, TCG_TYPE_I32); + tcg_out_cmp(s, TCG_COND_EQ, addrhi, TCG_REG_R4, 0, 6, TCG_TYPE_I32); + tcg_out32(s, CRAND | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); + } else { + tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP1, + 0, 7, TCG_TYPE_TL); + } + + return addrlo; +} + +/* Record the context of a call to the out of line helper code for the slow + path for a load or store, so that we can later generate the correct + helper code. */ +static void add_qemu_ldst_label(TCGContext *s, bool is_ld, TCGMemOpIdx oi, + TCGReg datalo_reg, TCGReg datahi_reg, + TCGReg addrlo_reg, TCGReg addrhi_reg, + tcg_insn_unit *raddr, tcg_insn_unit *lptr) +{ + TCGLabelQemuLdst *label = new_ldst_label(s); + + label->is_ld = is_ld; + label->oi = oi; + label->datalo_reg = datalo_reg; + label->datahi_reg = datahi_reg; + label->addrlo_reg = addrlo_reg; + label->addrhi_reg = addrhi_reg; + label->raddr = raddr; + label->label_ptr[0] = lptr; +} + +static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) +{ + TCGMemOpIdx oi = lb->oi; + MemOp opc = get_memop(oi); + TCGReg hi, lo, arg = TCG_REG_R3; + + if (!reloc_pc14(lb->label_ptr[0], s->code_ptr)) { + return false; + } + + tcg_out_mov(s, TCG_TYPE_PTR, arg++, TCG_AREG0); + + lo = lb->addrlo_reg; + hi = lb->addrhi_reg; + if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) { +#ifdef TCG_TARGET_CALL_ALIGN_ARGS + arg |= 1; +#endif + tcg_out_mov(s, TCG_TYPE_I32, arg++, hi); + tcg_out_mov(s, TCG_TYPE_I32, arg++, lo); + } else { + /* If the address needed to be zero-extended, we'll have already + placed it in R4. The only remaining case is 64-bit guest. */ + tcg_out_mov(s, TCG_TYPE_TL, arg++, lo); + } + + tcg_out_movi(s, TCG_TYPE_I32, arg++, oi); + tcg_out32(s, MFSPR | RT(arg) | LR); + + tcg_out_call(s, qemu_ld_helpers[opc & (MO_BSWAP | MO_SIZE)]); + + lo = lb->datalo_reg; + hi = lb->datahi_reg; + if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) { + tcg_out_mov(s, TCG_TYPE_I32, lo, TCG_REG_R4); + tcg_out_mov(s, TCG_TYPE_I32, hi, TCG_REG_R3); + } else if (opc & MO_SIGN) { + uint32_t insn = qemu_exts_opc[opc & MO_SIZE]; + tcg_out32(s, insn | RA(lo) | RS(TCG_REG_R3)); + } else { + tcg_out_mov(s, TCG_TYPE_REG, lo, TCG_REG_R3); + } + + tcg_out_b(s, 0, lb->raddr); + return true; +} + +static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) +{ + TCGMemOpIdx oi = lb->oi; + MemOp opc = get_memop(oi); + MemOp s_bits = opc & MO_SIZE; + TCGReg hi, lo, arg = TCG_REG_R3; + + if (!reloc_pc14(lb->label_ptr[0], s->code_ptr)) { + return false; + } + + tcg_out_mov(s, TCG_TYPE_PTR, arg++, TCG_AREG0); + + lo = lb->addrlo_reg; + hi = lb->addrhi_reg; + if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) { +#ifdef TCG_TARGET_CALL_ALIGN_ARGS + arg |= 1; +#endif + tcg_out_mov(s, TCG_TYPE_I32, arg++, hi); + tcg_out_mov(s, TCG_TYPE_I32, arg++, lo); + } else { + /* If the address needed to be zero-extended, we'll have already + placed it in R4. The only remaining case is 64-bit guest. */ + tcg_out_mov(s, TCG_TYPE_TL, arg++, lo); + } + + lo = lb->datalo_reg; + hi = lb->datahi_reg; + if (TCG_TARGET_REG_BITS == 32) { + switch (s_bits) { + case MO_64: +#ifdef TCG_TARGET_CALL_ALIGN_ARGS + arg |= 1; +#endif + tcg_out_mov(s, TCG_TYPE_I32, arg++, hi); + /* FALLTHRU */ + case MO_32: + tcg_out_mov(s, TCG_TYPE_I32, arg++, lo); + break; + default: + tcg_out_rlw(s, RLWINM, arg++, lo, 0, 32 - (8 << s_bits), 31); + break; + } + } else { + if (s_bits == MO_64) { + tcg_out_mov(s, TCG_TYPE_I64, arg++, lo); + } else { + tcg_out_rld(s, RLDICL, arg++, lo, 0, 64 - (8 << s_bits)); + } + } + + tcg_out_movi(s, TCG_TYPE_I32, arg++, oi); + tcg_out32(s, MFSPR | RT(arg) | LR); + + tcg_out_call(s, qemu_st_helpers[opc & (MO_BSWAP | MO_SIZE)]); + + tcg_out_b(s, 0, lb->raddr); + return true; +} +#endif /* SOFTMMU */ + +static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64) +{ + TCGReg datalo, datahi, addrlo, rbase; + TCGReg addrhi __attribute__((unused)); + TCGMemOpIdx oi; + MemOp opc, s_bits; +#ifdef CONFIG_SOFTMMU + int mem_index; + tcg_insn_unit *label_ptr; +#endif + + datalo = *args++; + datahi = (TCG_TARGET_REG_BITS == 32 && is_64 ? *args++ : 0); + addrlo = *args++; + addrhi = (TCG_TARGET_REG_BITS < TARGET_LONG_BITS ? *args++ : 0); + oi = *args++; + opc = get_memop(oi); + s_bits = opc & MO_SIZE; + +#ifdef CONFIG_SOFTMMU + mem_index = get_mmuidx(oi); + addrlo = tcg_out_tlb_read(s, opc, addrlo, addrhi, mem_index, true); + + /* Load a pointer into the current opcode w/conditional branch-link. */ + label_ptr = s->code_ptr; + tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK); + + rbase = TCG_REG_R3; +#else /* !CONFIG_SOFTMMU */ + rbase = guest_base ? TCG_GUEST_BASE_REG : 0; + if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) { + tcg_out_ext32u(s, TCG_REG_TMP1, addrlo); + addrlo = TCG_REG_TMP1; + } +#endif + + if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { + if (opc & MO_BSWAP) { + tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); + tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo)); + tcg_out32(s, LWBRX | TAB(datahi, rbase, TCG_REG_R0)); + } else if (rbase != 0) { + tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); + tcg_out32(s, LWZX | TAB(datahi, rbase, addrlo)); + tcg_out32(s, LWZX | TAB(datalo, rbase, TCG_REG_R0)); + } else if (addrlo == datahi) { + tcg_out32(s, LWZ | TAI(datalo, addrlo, 4)); + tcg_out32(s, LWZ | TAI(datahi, addrlo, 0)); + } else { + tcg_out32(s, LWZ | TAI(datahi, addrlo, 0)); + tcg_out32(s, LWZ | TAI(datalo, addrlo, 4)); + } + } else { + uint32_t insn = qemu_ldx_opc[opc & (MO_BSWAP | MO_SSIZE)]; + if (!have_isa_2_06 && insn == LDBRX) { + tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); + tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo)); + tcg_out32(s, LWBRX | TAB(TCG_REG_R0, rbase, TCG_REG_R0)); + tcg_out_rld(s, RLDIMI, datalo, TCG_REG_R0, 32, 0); + } else if (insn) { + tcg_out32(s, insn | TAB(datalo, rbase, addrlo)); + } else { + insn = qemu_ldx_opc[opc & (MO_SIZE | MO_BSWAP)]; + tcg_out32(s, insn | TAB(datalo, rbase, addrlo)); + insn = qemu_exts_opc[s_bits]; + tcg_out32(s, insn | RA(datalo) | RS(datalo)); + } + } + +#ifdef CONFIG_SOFTMMU + add_qemu_ldst_label(s, true, oi, datalo, datahi, addrlo, addrhi, + s->code_ptr, label_ptr); +#endif +} + +static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64) +{ + TCGReg datalo, datahi, addrlo, rbase; + TCGReg addrhi __attribute__((unused)); + TCGMemOpIdx oi; + MemOp opc, s_bits; +#ifdef CONFIG_SOFTMMU + int mem_index; + tcg_insn_unit *label_ptr; +#endif + + datalo = *args++; + datahi = (TCG_TARGET_REG_BITS == 32 && is_64 ? *args++ : 0); + addrlo = *args++; + addrhi = (TCG_TARGET_REG_BITS < TARGET_LONG_BITS ? *args++ : 0); + oi = *args++; + opc = get_memop(oi); + s_bits = opc & MO_SIZE; + +#ifdef CONFIG_SOFTMMU + mem_index = get_mmuidx(oi); + addrlo = tcg_out_tlb_read(s, opc, addrlo, addrhi, mem_index, false); + + /* Load a pointer into the current opcode w/conditional branch-link. */ + label_ptr = s->code_ptr; + tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK); + + rbase = TCG_REG_R3; +#else /* !CONFIG_SOFTMMU */ + rbase = guest_base ? TCG_GUEST_BASE_REG : 0; + if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) { + tcg_out_ext32u(s, TCG_REG_TMP1, addrlo); + addrlo = TCG_REG_TMP1; + } +#endif + + if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { + if (opc & MO_BSWAP) { + tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); + tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo)); + tcg_out32(s, STWBRX | SAB(datahi, rbase, TCG_REG_R0)); + } else if (rbase != 0) { + tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); + tcg_out32(s, STWX | SAB(datahi, rbase, addrlo)); + tcg_out32(s, STWX | SAB(datalo, rbase, TCG_REG_R0)); + } else { + tcg_out32(s, STW | TAI(datahi, addrlo, 0)); + tcg_out32(s, STW | TAI(datalo, addrlo, 4)); + } + } else { + uint32_t insn = qemu_stx_opc[opc & (MO_BSWAP | MO_SIZE)]; + if (!have_isa_2_06 && insn == STDBRX) { + tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo)); + tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, addrlo, 4)); + tcg_out_shri64(s, TCG_REG_R0, datalo, 32); + tcg_out32(s, STWBRX | SAB(TCG_REG_R0, rbase, TCG_REG_TMP1)); + } else { + tcg_out32(s, insn | SAB(datalo, rbase, addrlo)); + } + } + +#ifdef CONFIG_SOFTMMU + add_qemu_ldst_label(s, false, oi, datalo, datahi, addrlo, addrhi, + s->code_ptr, label_ptr); +#endif +} + +static void tcg_out_nop_fill(tcg_insn_unit *p, int count) +{ + int i; + for (i = 0; i < count; ++i) { + p[i] = NOP; + } +} + +/* Parameters for function call generation, used in tcg.c. */ +#define TCG_TARGET_STACK_ALIGN 16 +#define TCG_TARGET_EXTEND_ARGS 1 + +#ifdef _CALL_AIX +# define LINK_AREA_SIZE (6 * SZR) +# define LR_OFFSET (1 * SZR) +# define TCG_TARGET_CALL_STACK_OFFSET (LINK_AREA_SIZE + 8 * SZR) +#elif defined(TCG_TARGET_CALL_DARWIN) +# define LINK_AREA_SIZE (6 * SZR) +# define LR_OFFSET (2 * SZR) +#elif TCG_TARGET_REG_BITS == 64 +# if defined(_CALL_ELF) && _CALL_ELF == 2 +# define LINK_AREA_SIZE (4 * SZR) +# define LR_OFFSET (1 * SZR) +# endif +#else /* TCG_TARGET_REG_BITS == 32 */ +# if defined(_CALL_SYSV) +# define LINK_AREA_SIZE (2 * SZR) +# define LR_OFFSET (1 * SZR) +# endif +#endif +#ifndef LR_OFFSET +# error "Unhandled abi" +#endif +#ifndef TCG_TARGET_CALL_STACK_OFFSET +# define TCG_TARGET_CALL_STACK_OFFSET LINK_AREA_SIZE +#endif + +#define CPU_TEMP_BUF_SIZE (CPU_TEMP_BUF_NLONGS * (int)sizeof(long)) +#define REG_SAVE_SIZE ((int)ARRAY_SIZE(tcg_target_callee_save_regs) * SZR) + +#define FRAME_SIZE ((TCG_TARGET_CALL_STACK_OFFSET \ + + TCG_STATIC_CALL_ARGS_SIZE \ + + CPU_TEMP_BUF_SIZE \ + + REG_SAVE_SIZE \ + + TCG_TARGET_STACK_ALIGN - 1) \ + & -TCG_TARGET_STACK_ALIGN) + +#define REG_SAVE_BOT (FRAME_SIZE - REG_SAVE_SIZE) + +static void tcg_target_qemu_prologue(TCGContext *s) +{ + int i; + +#ifdef _CALL_AIX + void **desc = (void **)s->code_ptr; + desc[0] = desc + 2; /* entry point */ + desc[1] = 0; /* environment pointer */ + s->code_ptr = (void *)(desc + 2); /* skip over descriptor */ +#endif + + tcg_set_frame(s, TCG_REG_CALL_STACK, REG_SAVE_BOT - CPU_TEMP_BUF_SIZE, + CPU_TEMP_BUF_SIZE); + + /* Prologue */ + tcg_out32(s, MFSPR | RT(TCG_REG_R0) | LR); + tcg_out32(s, (SZR == 8 ? STDU : STWU) + | SAI(TCG_REG_R1, TCG_REG_R1, -FRAME_SIZE)); + + for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) { + tcg_out_st(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i], + TCG_REG_R1, REG_SAVE_BOT + i * SZR); + } + tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET); + +#ifndef CONFIG_SOFTMMU + if (guest_base) { + tcg_out_movi_int(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base, true); + tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); + } +#endif + + tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]); + tcg_out32(s, MTSPR | RS(tcg_target_call_iarg_regs[1]) | CTR); + if (USE_REG_TB) { + tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_TB, tcg_target_call_iarg_regs[1]); + } + tcg_out32(s, BCCTR | BO_ALWAYS); + + /* Epilogue */ + s->code_gen_epilogue = tb_ret_addr = s->code_ptr; + + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET); + for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) { + tcg_out_ld(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i], + TCG_REG_R1, REG_SAVE_BOT + i * SZR); + } + tcg_out32(s, MTSPR | RS(TCG_REG_R0) | LR); + tcg_out32(s, ADDI | TAI(TCG_REG_R1, TCG_REG_R1, FRAME_SIZE)); + tcg_out32(s, BCLR | BO_ALWAYS); +} + +static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, + const int *const_args) +{ + TCGArg a0, a1, a2; + int c; + + switch (opc) { + case INDEX_op_exit_tb: + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R3, args[0]); + tcg_out_b(s, 0, tb_ret_addr); + break; + case INDEX_op_goto_tb: + if (s->tb_jmp_insn_offset) { + /* Direct jump. */ + if (TCG_TARGET_REG_BITS == 64) { + /* Ensure the next insns are 8-byte aligned. */ + if ((uintptr_t)s->code_ptr & 7) { + tcg_out32(s, NOP); + } + s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s); + tcg_out32(s, ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, 0)); + tcg_out32(s, ADDI | TAI(TCG_REG_TB, TCG_REG_TB, 0)); + } else { + s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s); + tcg_out32(s, B); + s->tb_jmp_reset_offset[args[0]] = tcg_current_code_size(s); + break; + } + } else { + /* Indirect jump. */ + tcg_debug_assert(s->tb_jmp_insn_offset == NULL); + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TB, 0, + (intptr_t)(s->tb_jmp_insn_offset + args[0])); + } + tcg_out32(s, MTSPR | RS(TCG_REG_TB) | CTR); + tcg_out32(s, BCCTR | BO_ALWAYS); + set_jmp_reset_offset(s, args[0]); + if (USE_REG_TB) { + /* For the unlinked case, need to reset TCG_REG_TB. */ + c = -tcg_current_code_size(s); + assert(c == (int16_t)c); + tcg_out32(s, ADDI | TAI(TCG_REG_TB, TCG_REG_TB, c)); + } + break; + case INDEX_op_goto_ptr: + tcg_out32(s, MTSPR | RS(args[0]) | CTR); + if (USE_REG_TB) { + tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_TB, args[0]); + } + tcg_out32(s, ADDI | TAI(TCG_REG_R3, 0, 0)); + tcg_out32(s, BCCTR | BO_ALWAYS); + break; + case INDEX_op_br: + { + TCGLabel *l = arg_label(args[0]); + uint32_t insn = B; + + if (l->has_value) { + insn |= reloc_pc24_val(s->code_ptr, l->u.value_ptr); + } else { + tcg_out_reloc(s, s->code_ptr, R_PPC_REL24, l, 0); + } + tcg_out32(s, insn); + } + break; + case INDEX_op_ld8u_i32: + case INDEX_op_ld8u_i64: + tcg_out_mem_long(s, LBZ, LBZX, args[0], args[1], args[2]); + break; + case INDEX_op_ld8s_i32: + case INDEX_op_ld8s_i64: + tcg_out_mem_long(s, LBZ, LBZX, args[0], args[1], args[2]); + tcg_out32(s, EXTSB | RS(args[0]) | RA(args[0])); + break; + case INDEX_op_ld16u_i32: + case INDEX_op_ld16u_i64: + tcg_out_mem_long(s, LHZ, LHZX, args[0], args[1], args[2]); + break; + case INDEX_op_ld16s_i32: + case INDEX_op_ld16s_i64: + tcg_out_mem_long(s, LHA, LHAX, args[0], args[1], args[2]); + break; + case INDEX_op_ld_i32: + case INDEX_op_ld32u_i64: + tcg_out_mem_long(s, LWZ, LWZX, args[0], args[1], args[2]); + break; + case INDEX_op_ld32s_i64: + tcg_out_mem_long(s, LWA, LWAX, args[0], args[1], args[2]); + break; + case INDEX_op_ld_i64: + tcg_out_mem_long(s, LD, LDX, args[0], args[1], args[2]); + break; + case INDEX_op_st8_i32: + case INDEX_op_st8_i64: + tcg_out_mem_long(s, STB, STBX, args[0], args[1], args[2]); + break; + case INDEX_op_st16_i32: + case INDEX_op_st16_i64: + tcg_out_mem_long(s, STH, STHX, args[0], args[1], args[2]); + break; + case INDEX_op_st_i32: + case INDEX_op_st32_i64: + tcg_out_mem_long(s, STW, STWX, args[0], args[1], args[2]); + break; + case INDEX_op_st_i64: + tcg_out_mem_long(s, STD, STDX, args[0], args[1], args[2]); + break; + + case INDEX_op_add_i32: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + do_addi_32: + tcg_out_mem_long(s, ADDI, ADD, a0, a1, (int32_t)a2); + } else { + tcg_out32(s, ADD | TAB(a0, a1, a2)); + } + break; + case INDEX_op_sub_i32: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[1]) { + if (const_args[2]) { + tcg_out_movi(s, TCG_TYPE_I32, a0, a1 - a2); + } else { + tcg_out32(s, SUBFIC | TAI(a0, a2, a1)); + } + } else if (const_args[2]) { + a2 = -a2; + goto do_addi_32; + } else { + tcg_out32(s, SUBF | TAB(a0, a2, a1)); + } + break; + + case INDEX_op_and_i32: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + tcg_out_andi32(s, a0, a1, a2); + } else { + tcg_out32(s, AND | SAB(a1, a0, a2)); + } + break; + case INDEX_op_and_i64: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + tcg_out_andi64(s, a0, a1, a2); + } else { + tcg_out32(s, AND | SAB(a1, a0, a2)); + } + break; + case INDEX_op_or_i64: + case INDEX_op_or_i32: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + tcg_out_ori32(s, a0, a1, a2); + } else { + tcg_out32(s, OR | SAB(a1, a0, a2)); + } + break; + case INDEX_op_xor_i64: + case INDEX_op_xor_i32: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + tcg_out_xori32(s, a0, a1, a2); + } else { + tcg_out32(s, XOR | SAB(a1, a0, a2)); + } + break; + case INDEX_op_andc_i32: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + tcg_out_andi32(s, a0, a1, ~a2); + } else { + tcg_out32(s, ANDC | SAB(a1, a0, a2)); + } + break; + case INDEX_op_andc_i64: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + tcg_out_andi64(s, a0, a1, ~a2); + } else { + tcg_out32(s, ANDC | SAB(a1, a0, a2)); + } + break; + case INDEX_op_orc_i32: + if (const_args[2]) { + tcg_out_ori32(s, args[0], args[1], ~args[2]); + break; + } + /* FALLTHRU */ + case INDEX_op_orc_i64: + tcg_out32(s, ORC | SAB(args[1], args[0], args[2])); + break; + case INDEX_op_eqv_i32: + if (const_args[2]) { + tcg_out_xori32(s, args[0], args[1], ~args[2]); + break; + } + /* FALLTHRU */ + case INDEX_op_eqv_i64: + tcg_out32(s, EQV | SAB(args[1], args[0], args[2])); + break; + case INDEX_op_nand_i32: + case INDEX_op_nand_i64: + tcg_out32(s, NAND | SAB(args[1], args[0], args[2])); + break; + case INDEX_op_nor_i32: + case INDEX_op_nor_i64: + tcg_out32(s, NOR | SAB(args[1], args[0], args[2])); + break; + + case INDEX_op_clz_i32: + tcg_out_cntxz(s, TCG_TYPE_I32, CNTLZW, args[0], args[1], + args[2], const_args[2]); + break; + case INDEX_op_ctz_i32: + tcg_out_cntxz(s, TCG_TYPE_I32, CNTTZW, args[0], args[1], + args[2], const_args[2]); + break; + case INDEX_op_ctpop_i32: + tcg_out32(s, CNTPOPW | SAB(args[1], args[0], 0)); + break; + + case INDEX_op_clz_i64: + tcg_out_cntxz(s, TCG_TYPE_I64, CNTLZD, args[0], args[1], + args[2], const_args[2]); + break; + case INDEX_op_ctz_i64: + tcg_out_cntxz(s, TCG_TYPE_I64, CNTTZD, args[0], args[1], + args[2], const_args[2]); + break; + case INDEX_op_ctpop_i64: + tcg_out32(s, CNTPOPD | SAB(args[1], args[0], 0)); + break; + + case INDEX_op_mul_i32: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + tcg_out32(s, MULLI | TAI(a0, a1, a2)); + } else { + tcg_out32(s, MULLW | TAB(a0, a1, a2)); + } + break; + + case INDEX_op_div_i32: + tcg_out32(s, DIVW | TAB(args[0], args[1], args[2])); + break; + + case INDEX_op_divu_i32: + tcg_out32(s, DIVWU | TAB(args[0], args[1], args[2])); + break; + + case INDEX_op_shl_i32: + if (const_args[2]) { + /* Limit immediate shift count lest we create an illegal insn. */ + tcg_out_shli32(s, args[0], args[1], args[2] & 31); + } else { + tcg_out32(s, SLW | SAB(args[1], args[0], args[2])); + } + break; + case INDEX_op_shr_i32: + if (const_args[2]) { + /* Limit immediate shift count lest we create an illegal insn. */ + tcg_out_shri32(s, args[0], args[1], args[2] & 31); + } else { + tcg_out32(s, SRW | SAB(args[1], args[0], args[2])); + } + break; + case INDEX_op_sar_i32: + if (const_args[2]) { + /* Limit immediate shift count lest we create an illegal insn. */ + tcg_out32(s, SRAWI | RS(args[1]) | RA(args[0]) | SH(args[2] & 31)); + } else { + tcg_out32(s, SRAW | SAB(args[1], args[0], args[2])); + } + break; + case INDEX_op_rotl_i32: + if (const_args[2]) { + tcg_out_rlw(s, RLWINM, args[0], args[1], args[2], 0, 31); + } else { + tcg_out32(s, RLWNM | SAB(args[1], args[0], args[2]) + | MB(0) | ME(31)); + } + break; + case INDEX_op_rotr_i32: + if (const_args[2]) { + tcg_out_rlw(s, RLWINM, args[0], args[1], 32 - args[2], 0, 31); + } else { + tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 32)); + tcg_out32(s, RLWNM | SAB(args[1], args[0], TCG_REG_R0) + | MB(0) | ME(31)); + } + break; + + case INDEX_op_brcond_i32: + tcg_out_brcond(s, args[2], args[0], args[1], const_args[1], + arg_label(args[3]), TCG_TYPE_I32); + break; + case INDEX_op_brcond_i64: + tcg_out_brcond(s, args[2], args[0], args[1], const_args[1], + arg_label(args[3]), TCG_TYPE_I64); + break; + case INDEX_op_brcond2_i32: + tcg_out_brcond2(s, args, const_args); + break; + + case INDEX_op_neg_i32: + case INDEX_op_neg_i64: + tcg_out32(s, NEG | RT(args[0]) | RA(args[1])); + break; + + case INDEX_op_not_i32: + case INDEX_op_not_i64: + tcg_out32(s, NOR | SAB(args[1], args[0], args[1])); + break; + + case INDEX_op_add_i64: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + do_addi_64: + tcg_out_mem_long(s, ADDI, ADD, a0, a1, a2); + } else { + tcg_out32(s, ADD | TAB(a0, a1, a2)); + } + break; + case INDEX_op_sub_i64: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[1]) { + if (const_args[2]) { + tcg_out_movi(s, TCG_TYPE_I64, a0, a1 - a2); + } else { + tcg_out32(s, SUBFIC | TAI(a0, a2, a1)); + } + } else if (const_args[2]) { + a2 = -a2; + goto do_addi_64; + } else { + tcg_out32(s, SUBF | TAB(a0, a2, a1)); + } + break; + + case INDEX_op_shl_i64: + if (const_args[2]) { + /* Limit immediate shift count lest we create an illegal insn. */ + tcg_out_shli64(s, args[0], args[1], args[2] & 63); + } else { + tcg_out32(s, SLD | SAB(args[1], args[0], args[2])); + } + break; + case INDEX_op_shr_i64: + if (const_args[2]) { + /* Limit immediate shift count lest we create an illegal insn. */ + tcg_out_shri64(s, args[0], args[1], args[2] & 63); + } else { + tcg_out32(s, SRD | SAB(args[1], args[0], args[2])); + } + break; + case INDEX_op_sar_i64: + if (const_args[2]) { + int sh = SH(args[2] & 0x1f) | (((args[2] >> 5) & 1) << 1); + tcg_out32(s, SRADI | RA(args[0]) | RS(args[1]) | sh); + } else { + tcg_out32(s, SRAD | SAB(args[1], args[0], args[2])); + } + break; + case INDEX_op_rotl_i64: + if (const_args[2]) { + tcg_out_rld(s, RLDICL, args[0], args[1], args[2], 0); + } else { + tcg_out32(s, RLDCL | SAB(args[1], args[0], args[2]) | MB64(0)); + } + break; + case INDEX_op_rotr_i64: + if (const_args[2]) { + tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 0); + } else { + tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 64)); + tcg_out32(s, RLDCL | SAB(args[1], args[0], TCG_REG_R0) | MB64(0)); + } + break; + + case INDEX_op_mul_i64: + a0 = args[0], a1 = args[1], a2 = args[2]; + if (const_args[2]) { + tcg_out32(s, MULLI | TAI(a0, a1, a2)); + } else { + tcg_out32(s, MULLD | TAB(a0, a1, a2)); + } + break; + case INDEX_op_div_i64: + tcg_out32(s, DIVD | TAB(args[0], args[1], args[2])); + break; + case INDEX_op_divu_i64: + tcg_out32(s, DIVDU | TAB(args[0], args[1], args[2])); + break; + + case INDEX_op_qemu_ld_i32: + tcg_out_qemu_ld(s, args, false); + break; + case INDEX_op_qemu_ld_i64: + tcg_out_qemu_ld(s, args, true); + break; + case INDEX_op_qemu_st_i32: + tcg_out_qemu_st(s, args, false); + break; + case INDEX_op_qemu_st_i64: + tcg_out_qemu_st(s, args, true); + break; + + case INDEX_op_ext8s_i32: + case INDEX_op_ext8s_i64: + c = EXTSB; + goto gen_ext; + case INDEX_op_ext16s_i32: + case INDEX_op_ext16s_i64: + c = EXTSH; + goto gen_ext; + case INDEX_op_ext_i32_i64: + case INDEX_op_ext32s_i64: + c = EXTSW; + goto gen_ext; + gen_ext: + tcg_out32(s, c | RS(args[1]) | RA(args[0])); + break; + case INDEX_op_extu_i32_i64: + tcg_out_ext32u(s, args[0], args[1]); + break; + + case INDEX_op_setcond_i32: + tcg_out_setcond(s, TCG_TYPE_I32, args[3], args[0], args[1], args[2], + const_args[2]); + break; + case INDEX_op_setcond_i64: + tcg_out_setcond(s, TCG_TYPE_I64, args[3], args[0], args[1], args[2], + const_args[2]); + break; + case INDEX_op_setcond2_i32: + tcg_out_setcond2(s, args, const_args); + break; + + case INDEX_op_bswap16_i32: + case INDEX_op_bswap16_i64: + a0 = args[0], a1 = args[1]; + /* a1 = abcd */ + if (a0 != a1) { + /* a0 = (a1 r<< 24) & 0xff # 000c */ + tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31); + /* a0 = (a0 & ~0xff00) | (a1 r<< 8) & 0xff00 # 00dc */ + tcg_out_rlw(s, RLWIMI, a0, a1, 8, 16, 23); + } else { + /* r0 = (a1 r<< 8) & 0xff00 # 00d0 */ + tcg_out_rlw(s, RLWINM, TCG_REG_R0, a1, 8, 16, 23); + /* a0 = (a1 r<< 24) & 0xff # 000c */ + tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31); + /* a0 = a0 | r0 # 00dc */ + tcg_out32(s, OR | SAB(TCG_REG_R0, a0, a0)); + } + break; + + case INDEX_op_bswap32_i32: + case INDEX_op_bswap32_i64: + /* Stolen from gcc's builtin_bswap32 */ + a1 = args[1]; + a0 = args[0] == a1 ? TCG_REG_R0 : args[0]; + + /* a1 = args[1] # abcd */ + /* a0 = rotate_left (a1, 8) # bcda */ + tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31); + /* a0 = (a0 & ~0xff000000) | ((a1 r<< 24) & 0xff000000) # dcda */ + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7); + /* a0 = (a0 & ~0x0000ff00) | ((a1 r<< 24) & 0x0000ff00) # dcba */ + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23); + + if (a0 == TCG_REG_R0) { + tcg_out_mov(s, TCG_TYPE_REG, args[0], a0); + } + break; + + case INDEX_op_bswap64_i64: + a0 = args[0], a1 = args[1], a2 = TCG_REG_R0; + if (a0 == a1) { + a0 = TCG_REG_R0; + a2 = a1; + } + + /* a1 = # abcd efgh */ + /* a0 = rl32(a1, 8) # 0000 fghe */ + tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31); + /* a0 = dep(a0, rl32(a1, 24), 0xff000000) # 0000 hghe */ + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7); + /* a0 = dep(a0, rl32(a1, 24), 0x0000ff00) # 0000 hgfe */ + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23); + + /* a0 = rl64(a0, 32) # hgfe 0000 */ + /* a2 = rl64(a1, 32) # efgh abcd */ + tcg_out_rld(s, RLDICL, a0, a0, 32, 0); + tcg_out_rld(s, RLDICL, a2, a1, 32, 0); + + /* a0 = dep(a0, rl32(a2, 8), 0xffffffff) # hgfe bcda */ + tcg_out_rlw(s, RLWIMI, a0, a2, 8, 0, 31); + /* a0 = dep(a0, rl32(a2, 24), 0xff000000) # hgfe dcda */ + tcg_out_rlw(s, RLWIMI, a0, a2, 24, 0, 7); + /* a0 = dep(a0, rl32(a2, 24), 0x0000ff00) # hgfe dcba */ + tcg_out_rlw(s, RLWIMI, a0, a2, 24, 16, 23); + + if (a0 == 0) { + tcg_out_mov(s, TCG_TYPE_REG, args[0], a0); + } + break; + + case INDEX_op_deposit_i32: + if (const_args[2]) { + uint32_t mask = ((2u << (args[4] - 1)) - 1) << args[3]; + tcg_out_andi32(s, args[0], args[0], ~mask); + } else { + tcg_out_rlw(s, RLWIMI, args[0], args[2], args[3], + 32 - args[3] - args[4], 31 - args[3]); + } + break; + case INDEX_op_deposit_i64: + if (const_args[2]) { + uint64_t mask = ((2ull << (args[4] - 1)) - 1) << args[3]; + tcg_out_andi64(s, args[0], args[0], ~mask); + } else { + tcg_out_rld(s, RLDIMI, args[0], args[2], args[3], + 64 - args[3] - args[4]); + } + break; + + case INDEX_op_extract_i32: + tcg_out_rlw(s, RLWINM, args[0], args[1], + 32 - args[2], 32 - args[3], 31); + break; + case INDEX_op_extract_i64: + tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 64 - args[3]); + break; + + case INDEX_op_movcond_i32: + tcg_out_movcond(s, TCG_TYPE_I32, args[5], args[0], args[1], args[2], + args[3], args[4], const_args[2]); + break; + case INDEX_op_movcond_i64: + tcg_out_movcond(s, TCG_TYPE_I64, args[5], args[0], args[1], args[2], + args[3], args[4], const_args[2]); + break; + +#if TCG_TARGET_REG_BITS == 64 + case INDEX_op_add2_i64: +#else + case INDEX_op_add2_i32: +#endif + /* Note that the CA bit is defined based on the word size of the + environment. So in 64-bit mode it's always carry-out of bit 63. + The fallback code using deposit works just as well for 32-bit. */ + a0 = args[0], a1 = args[1]; + if (a0 == args[3] || (!const_args[5] && a0 == args[5])) { + a0 = TCG_REG_R0; + } + if (const_args[4]) { + tcg_out32(s, ADDIC | TAI(a0, args[2], args[4])); + } else { + tcg_out32(s, ADDC | TAB(a0, args[2], args[4])); + } + if (const_args[5]) { + tcg_out32(s, (args[5] ? ADDME : ADDZE) | RT(a1) | RA(args[3])); + } else { + tcg_out32(s, ADDE | TAB(a1, args[3], args[5])); + } + if (a0 != args[0]) { + tcg_out_mov(s, TCG_TYPE_REG, args[0], a0); + } + break; + +#if TCG_TARGET_REG_BITS == 64 + case INDEX_op_sub2_i64: +#else + case INDEX_op_sub2_i32: +#endif + a0 = args[0], a1 = args[1]; + if (a0 == args[5] || (!const_args[3] && a0 == args[3])) { + a0 = TCG_REG_R0; + } + if (const_args[2]) { + tcg_out32(s, SUBFIC | TAI(a0, args[4], args[2])); + } else { + tcg_out32(s, SUBFC | TAB(a0, args[4], args[2])); + } + if (const_args[3]) { + tcg_out32(s, (args[3] ? SUBFME : SUBFZE) | RT(a1) | RA(args[5])); + } else { + tcg_out32(s, SUBFE | TAB(a1, args[5], args[3])); + } + if (a0 != args[0]) { + tcg_out_mov(s, TCG_TYPE_REG, args[0], a0); + } + break; + + case INDEX_op_muluh_i32: + tcg_out32(s, MULHWU | TAB(args[0], args[1], args[2])); + break; + case INDEX_op_mulsh_i32: + tcg_out32(s, MULHW | TAB(args[0], args[1], args[2])); + break; + case INDEX_op_muluh_i64: + tcg_out32(s, MULHDU | TAB(args[0], args[1], args[2])); + break; + case INDEX_op_mulsh_i64: + tcg_out32(s, MULHD | TAB(args[0], args[1], args[2])); + break; + + case INDEX_op_mb: + tcg_out_mb(s, args[0]); + break; + + case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ + case INDEX_op_mov_i64: + case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */ + case INDEX_op_movi_i64: + case INDEX_op_call: /* Always emitted via tcg_out_call. */ + default: + tcg_abort(); + } +} + +int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece) +{ + switch (opc) { + case INDEX_op_and_vec: + case INDEX_op_or_vec: + case INDEX_op_xor_vec: + case INDEX_op_andc_vec: + case INDEX_op_not_vec: + return 1; + case INDEX_op_orc_vec: + return have_isa_2_07; + case INDEX_op_add_vec: + case INDEX_op_sub_vec: + case INDEX_op_smax_vec: + case INDEX_op_smin_vec: + case INDEX_op_umax_vec: + case INDEX_op_umin_vec: + case INDEX_op_shlv_vec: + case INDEX_op_shrv_vec: + case INDEX_op_sarv_vec: + case INDEX_op_rotlv_vec: + return vece <= MO_32 || have_isa_2_07; + case INDEX_op_ssadd_vec: + case INDEX_op_sssub_vec: + case INDEX_op_usadd_vec: + case INDEX_op_ussub_vec: + return vece <= MO_32; + case INDEX_op_cmp_vec: + case INDEX_op_shli_vec: + case INDEX_op_shri_vec: + case INDEX_op_sari_vec: + case INDEX_op_rotli_vec: + return vece <= MO_32 || have_isa_2_07 ? -1 : 0; + case INDEX_op_neg_vec: + return vece >= MO_32 && have_isa_3_00; + case INDEX_op_mul_vec: + switch (vece) { + case MO_8: + case MO_16: + return -1; + case MO_32: + return have_isa_2_07 ? 1 : -1; + } + return 0; + case INDEX_op_bitsel_vec: + return have_vsx; + case INDEX_op_rotrv_vec: + return -1; + default: + return 0; + } +} + +static bool tcg_out_dup_vec(TCGContext *s, TCGType type, unsigned vece, + TCGReg dst, TCGReg src) +{ + tcg_debug_assert(dst >= TCG_REG_V0); + + /* Splat from integer reg allowed via constraints for v3.00. */ + if (src < TCG_REG_V0) { + tcg_debug_assert(have_isa_3_00); + switch (vece) { + case MO_64: + tcg_out32(s, MTVSRDD | VRT(dst) | RA(src) | RB(src)); + return true; + case MO_32: + tcg_out32(s, MTVSRWS | VRT(dst) | RA(src)); + return true; + default: + /* Fail, so that we fall back on either dupm or mov+dup. */ + return false; + } + } + + /* + * Recall we use (or emulate) VSX integer loads, so the integer is + * right justified within the left (zero-index) double-word. + */ + switch (vece) { + case MO_8: + tcg_out32(s, VSPLTB | VRT(dst) | VRB(src) | (7 << 16)); + break; + case MO_16: + tcg_out32(s, VSPLTH | VRT(dst) | VRB(src) | (3 << 16)); + break; + case MO_32: + tcg_out32(s, VSPLTW | VRT(dst) | VRB(src) | (1 << 16)); + break; + case MO_64: + if (have_vsx) { + tcg_out32(s, XXPERMDI | VRT(dst) | VRA(src) | VRB(src)); + break; + } + tcg_out_vsldoi(s, TCG_VEC_TMP1, src, src, 8); + tcg_out_vsldoi(s, dst, TCG_VEC_TMP1, src, 8); + break; + default: + g_assert_not_reached(); + } + return true; +} + +static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece, + TCGReg out, TCGReg base, intptr_t offset) +{ + int elt; + + tcg_debug_assert(out >= TCG_REG_V0); + switch (vece) { + case MO_8: + if (have_isa_3_00) { + tcg_out_mem_long(s, LXV, LVX, out, base, offset & -16); + } else { + tcg_out_mem_long(s, 0, LVEBX, out, base, offset); + } + elt = extract32(offset, 0, 4); +#ifndef HOST_WORDS_BIGENDIAN + elt ^= 15; +#endif + tcg_out32(s, VSPLTB | VRT(out) | VRB(out) | (elt << 16)); + break; + case MO_16: + tcg_debug_assert((offset & 1) == 0); + if (have_isa_3_00) { + tcg_out_mem_long(s, LXV | 8, LVX, out, base, offset & -16); + } else { + tcg_out_mem_long(s, 0, LVEHX, out, base, offset); + } + elt = extract32(offset, 1, 3); +#ifndef HOST_WORDS_BIGENDIAN + elt ^= 7; +#endif + tcg_out32(s, VSPLTH | VRT(out) | VRB(out) | (elt << 16)); + break; + case MO_32: + if (have_isa_3_00) { + tcg_out_mem_long(s, 0, LXVWSX, out, base, offset); + break; + } + tcg_debug_assert((offset & 3) == 0); + tcg_out_mem_long(s, 0, LVEWX, out, base, offset); + elt = extract32(offset, 2, 2); +#ifndef HOST_WORDS_BIGENDIAN + elt ^= 3; +#endif + tcg_out32(s, VSPLTW | VRT(out) | VRB(out) | (elt << 16)); + break; + case MO_64: + if (have_vsx) { + tcg_out_mem_long(s, 0, LXVDSX, out, base, offset); + break; + } + tcg_debug_assert((offset & 7) == 0); + tcg_out_mem_long(s, 0, LVX, out, base, offset & -16); + tcg_out_vsldoi(s, TCG_VEC_TMP1, out, out, 8); + elt = extract32(offset, 3, 1); +#ifndef HOST_WORDS_BIGENDIAN + elt = !elt; +#endif + if (elt) { + tcg_out_vsldoi(s, out, out, TCG_VEC_TMP1, 8); + } else { + tcg_out_vsldoi(s, out, TCG_VEC_TMP1, out, 8); + } + break; + default: + g_assert_not_reached(); + } + return true; +} + +static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, + unsigned vecl, unsigned vece, + const TCGArg *args, const int *const_args) +{ + static const uint32_t + add_op[4] = { VADDUBM, VADDUHM, VADDUWM, VADDUDM }, + sub_op[4] = { VSUBUBM, VSUBUHM, VSUBUWM, VSUBUDM }, + neg_op[4] = { 0, 0, VNEGW, VNEGD }, + eq_op[4] = { VCMPEQUB, VCMPEQUH, VCMPEQUW, VCMPEQUD }, + ne_op[4] = { VCMPNEB, VCMPNEH, VCMPNEW, 0 }, + gts_op[4] = { VCMPGTSB, VCMPGTSH, VCMPGTSW, VCMPGTSD }, + gtu_op[4] = { VCMPGTUB, VCMPGTUH, VCMPGTUW, VCMPGTUD }, + ssadd_op[4] = { VADDSBS, VADDSHS, VADDSWS, 0 }, + usadd_op[4] = { VADDUBS, VADDUHS, VADDUWS, 0 }, + sssub_op[4] = { VSUBSBS, VSUBSHS, VSUBSWS, 0 }, + ussub_op[4] = { VSUBUBS, VSUBUHS, VSUBUWS, 0 }, + umin_op[4] = { VMINUB, VMINUH, VMINUW, VMINUD }, + smin_op[4] = { VMINSB, VMINSH, VMINSW, VMINSD }, + umax_op[4] = { VMAXUB, VMAXUH, VMAXUW, VMAXUD }, + smax_op[4] = { VMAXSB, VMAXSH, VMAXSW, VMAXSD }, + shlv_op[4] = { VSLB, VSLH, VSLW, VSLD }, + shrv_op[4] = { VSRB, VSRH, VSRW, VSRD }, + sarv_op[4] = { VSRAB, VSRAH, VSRAW, VSRAD }, + mrgh_op[4] = { VMRGHB, VMRGHH, VMRGHW, 0 }, + mrgl_op[4] = { VMRGLB, VMRGLH, VMRGLW, 0 }, + muleu_op[4] = { VMULEUB, VMULEUH, VMULEUW, 0 }, + mulou_op[4] = { VMULOUB, VMULOUH, VMULOUW, 0 }, + pkum_op[4] = { VPKUHUM, VPKUWUM, 0, 0 }, + rotl_op[4] = { VRLB, VRLH, VRLW, VRLD }; + + TCGType type = vecl + TCG_TYPE_V64; + TCGArg a0 = args[0], a1 = args[1], a2 = args[2]; + uint32_t insn; + + switch (opc) { + case INDEX_op_ld_vec: + tcg_out_ld(s, type, a0, a1, a2); + return; + case INDEX_op_st_vec: + tcg_out_st(s, type, a0, a1, a2); + return; + case INDEX_op_dupm_vec: + tcg_out_dupm_vec(s, type, vece, a0, a1, a2); + return; + + case INDEX_op_add_vec: + insn = add_op[vece]; + break; + case INDEX_op_sub_vec: + insn = sub_op[vece]; + break; + case INDEX_op_neg_vec: + insn = neg_op[vece]; + a2 = a1; + a1 = 0; + break; + case INDEX_op_mul_vec: + tcg_debug_assert(vece == MO_32 && have_isa_2_07); + insn = VMULUWM; + break; + case INDEX_op_ssadd_vec: + insn = ssadd_op[vece]; + break; + case INDEX_op_sssub_vec: + insn = sssub_op[vece]; + break; + case INDEX_op_usadd_vec: + insn = usadd_op[vece]; + break; + case INDEX_op_ussub_vec: + insn = ussub_op[vece]; + break; + case INDEX_op_smin_vec: + insn = smin_op[vece]; + break; + case INDEX_op_umin_vec: + insn = umin_op[vece]; + break; + case INDEX_op_smax_vec: + insn = smax_op[vece]; + break; + case INDEX_op_umax_vec: + insn = umax_op[vece]; + break; + case INDEX_op_shlv_vec: + insn = shlv_op[vece]; + break; + case INDEX_op_shrv_vec: + insn = shrv_op[vece]; + break; + case INDEX_op_sarv_vec: + insn = sarv_op[vece]; + break; + case INDEX_op_and_vec: + insn = VAND; + break; + case INDEX_op_or_vec: + insn = VOR; + break; + case INDEX_op_xor_vec: + insn = VXOR; + break; + case INDEX_op_andc_vec: + insn = VANDC; + break; + case INDEX_op_not_vec: + insn = VNOR; + a2 = a1; + break; + case INDEX_op_orc_vec: + insn = VORC; + break; + + case INDEX_op_cmp_vec: + switch (args[3]) { + case TCG_COND_EQ: + insn = eq_op[vece]; + break; + case TCG_COND_NE: + insn = ne_op[vece]; + break; + case TCG_COND_GT: + insn = gts_op[vece]; + break; + case TCG_COND_GTU: + insn = gtu_op[vece]; + break; + default: + g_assert_not_reached(); + } + break; + + case INDEX_op_bitsel_vec: + tcg_out32(s, XXSEL | VRT(a0) | VRC(a1) | VRB(a2) | VRA(args[3])); + return; + + case INDEX_op_dup2_vec: + assert(TCG_TARGET_REG_BITS == 32); + /* With inputs a1 = xLxx, a2 = xHxx */ + tcg_out32(s, VMRGHW | VRT(a0) | VRA(a2) | VRB(a1)); /* a0 = xxHL */ + tcg_out_vsldoi(s, TCG_VEC_TMP1, a0, a0, 8); /* tmp = HLxx */ + tcg_out_vsldoi(s, a0, a0, TCG_VEC_TMP1, 8); /* a0 = HLHL */ + return; + + case INDEX_op_ppc_mrgh_vec: + insn = mrgh_op[vece]; + break; + case INDEX_op_ppc_mrgl_vec: + insn = mrgl_op[vece]; + break; + case INDEX_op_ppc_muleu_vec: + insn = muleu_op[vece]; + break; + case INDEX_op_ppc_mulou_vec: + insn = mulou_op[vece]; + break; + case INDEX_op_ppc_pkum_vec: + insn = pkum_op[vece]; + break; + case INDEX_op_rotlv_vec: + insn = rotl_op[vece]; + break; + case INDEX_op_ppc_msum_vec: + tcg_debug_assert(vece == MO_16); + tcg_out32(s, VMSUMUHM | VRT(a0) | VRA(a1) | VRB(a2) | VRC(args[3])); + return; + + case INDEX_op_mov_vec: /* Always emitted via tcg_out_mov. */ + case INDEX_op_dupi_vec: /* Always emitted via tcg_out_movi. */ + case INDEX_op_dup_vec: /* Always emitted via tcg_out_dup_vec. */ + default: + g_assert_not_reached(); + } + + tcg_debug_assert(insn != 0); + tcg_out32(s, insn | VRT(a0) | VRA(a1) | VRB(a2)); +} + +static void expand_vec_shi(TCGType type, unsigned vece, TCGv_vec v0, + TCGv_vec v1, TCGArg imm, TCGOpcode opci) +{ + TCGv_vec t1 = tcg_temp_new_vec(type); + + /* Splat w/bytes for xxspltib. */ + tcg_gen_dupi_vec(MO_8, t1, imm & ((8 << vece) - 1)); + vec_gen_3(opci, type, vece, tcgv_vec_arg(v0), + tcgv_vec_arg(v1), tcgv_vec_arg(t1)); + tcg_temp_free_vec(t1); +} + +static void expand_vec_cmp(TCGType type, unsigned vece, TCGv_vec v0, + TCGv_vec v1, TCGv_vec v2, TCGCond cond) +{ + bool need_swap = false, need_inv = false; + + tcg_debug_assert(vece <= MO_32 || have_isa_2_07); + + switch (cond) { + case TCG_COND_EQ: + case TCG_COND_GT: + case TCG_COND_GTU: + break; + case TCG_COND_NE: + if (have_isa_3_00 && vece <= MO_32) { + break; + } + /* fall through */ + case TCG_COND_LE: + case TCG_COND_LEU: + need_inv = true; + break; + case TCG_COND_LT: + case TCG_COND_LTU: + need_swap = true; + break; + case TCG_COND_GE: + case TCG_COND_GEU: + need_swap = need_inv = true; + break; + default: + g_assert_not_reached(); + } + + if (need_inv) { + cond = tcg_invert_cond(cond); + } + if (need_swap) { + TCGv_vec t1; + t1 = v1, v1 = v2, v2 = t1; + cond = tcg_swap_cond(cond); + } + + vec_gen_4(INDEX_op_cmp_vec, type, vece, tcgv_vec_arg(v0), + tcgv_vec_arg(v1), tcgv_vec_arg(v2), cond); + + if (need_inv) { + tcg_gen_not_vec(vece, v0, v0); + } +} + +static void expand_vec_mul(TCGType type, unsigned vece, TCGv_vec v0, + TCGv_vec v1, TCGv_vec v2) +{ + TCGv_vec t1 = tcg_temp_new_vec(type); + TCGv_vec t2 = tcg_temp_new_vec(type); + TCGv_vec t3, t4; + + switch (vece) { + case MO_8: + case MO_16: + vec_gen_3(INDEX_op_ppc_muleu_vec, type, vece, tcgv_vec_arg(t1), + tcgv_vec_arg(v1), tcgv_vec_arg(v2)); + vec_gen_3(INDEX_op_ppc_mulou_vec, type, vece, tcgv_vec_arg(t2), + tcgv_vec_arg(v1), tcgv_vec_arg(v2)); + vec_gen_3(INDEX_op_ppc_mrgh_vec, type, vece + 1, tcgv_vec_arg(v0), + tcgv_vec_arg(t1), tcgv_vec_arg(t2)); + vec_gen_3(INDEX_op_ppc_mrgl_vec, type, vece + 1, tcgv_vec_arg(t1), + tcgv_vec_arg(t1), tcgv_vec_arg(t2)); + vec_gen_3(INDEX_op_ppc_pkum_vec, type, vece, tcgv_vec_arg(v0), + tcgv_vec_arg(v0), tcgv_vec_arg(t1)); + break; + + case MO_32: + tcg_debug_assert(!have_isa_2_07); + t3 = tcg_temp_new_vec(type); + t4 = tcg_temp_new_vec(type); + tcg_gen_dupi_vec(MO_8, t4, -16); + vec_gen_3(INDEX_op_rotlv_vec, type, MO_32, tcgv_vec_arg(t1), + tcgv_vec_arg(v2), tcgv_vec_arg(t4)); + vec_gen_3(INDEX_op_ppc_mulou_vec, type, MO_16, tcgv_vec_arg(t2), + tcgv_vec_arg(v1), tcgv_vec_arg(v2)); + tcg_gen_dupi_vec(MO_8, t3, 0); + vec_gen_4(INDEX_op_ppc_msum_vec, type, MO_16, tcgv_vec_arg(t3), + tcgv_vec_arg(v1), tcgv_vec_arg(t1), tcgv_vec_arg(t3)); + vec_gen_3(INDEX_op_shlv_vec, type, MO_32, tcgv_vec_arg(t3), + tcgv_vec_arg(t3), tcgv_vec_arg(t4)); + tcg_gen_add_vec(MO_32, v0, t2, t3); + tcg_temp_free_vec(t3); + tcg_temp_free_vec(t4); + break; + + default: + g_assert_not_reached(); + } + tcg_temp_free_vec(t1); + tcg_temp_free_vec(t2); +} + +void tcg_expand_vec_op(TCGOpcode opc, TCGType type, unsigned vece, + TCGArg a0, ...) +{ + va_list va; + TCGv_vec v0, v1, v2, t0; + TCGArg a2; + + va_start(va, a0); + v0 = temp_tcgv_vec(arg_temp(a0)); + v1 = temp_tcgv_vec(arg_temp(va_arg(va, TCGArg))); + a2 = va_arg(va, TCGArg); + + switch (opc) { + case INDEX_op_shli_vec: + expand_vec_shi(type, vece, v0, v1, a2, INDEX_op_shlv_vec); + break; + case INDEX_op_shri_vec: + expand_vec_shi(type, vece, v0, v1, a2, INDEX_op_shrv_vec); + break; + case INDEX_op_sari_vec: + expand_vec_shi(type, vece, v0, v1, a2, INDEX_op_sarv_vec); + break; + case INDEX_op_rotli_vec: + expand_vec_shi(type, vece, v0, v1, a2, INDEX_op_rotlv_vec); + break; + case INDEX_op_cmp_vec: + v2 = temp_tcgv_vec(arg_temp(a2)); + expand_vec_cmp(type, vece, v0, v1, v2, va_arg(va, TCGArg)); + break; + case INDEX_op_mul_vec: + v2 = temp_tcgv_vec(arg_temp(a2)); + expand_vec_mul(type, vece, v0, v1, v2); + break; + case INDEX_op_rotlv_vec: + v2 = temp_tcgv_vec(arg_temp(a2)); + t0 = tcg_temp_new_vec(type); + tcg_gen_neg_vec(vece, t0, v2); + tcg_gen_rotlv_vec(vece, v0, v1, t0); + tcg_temp_free_vec(t0); + break; + default: + g_assert_not_reached(); + } + va_end(va); +} + +static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op) +{ + static const TCGTargetOpDef r = { .args_ct_str = { "r" } }; + static const TCGTargetOpDef r_r = { .args_ct_str = { "r", "r" } }; + static const TCGTargetOpDef r_L = { .args_ct_str = { "r", "L" } }; + static const TCGTargetOpDef S_S = { .args_ct_str = { "S", "S" } }; + static const TCGTargetOpDef r_ri = { .args_ct_str = { "r", "ri" } }; + static const TCGTargetOpDef r_r_r = { .args_ct_str = { "r", "r", "r" } }; + static const TCGTargetOpDef r_L_L = { .args_ct_str = { "r", "L", "L" } }; + static const TCGTargetOpDef L_L_L = { .args_ct_str = { "L", "L", "L" } }; + static const TCGTargetOpDef S_S_S = { .args_ct_str = { "S", "S", "S" } }; + static const TCGTargetOpDef r_r_ri = { .args_ct_str = { "r", "r", "ri" } }; + static const TCGTargetOpDef r_r_rI = { .args_ct_str = { "r", "r", "rI" } }; + static const TCGTargetOpDef r_r_rT = { .args_ct_str = { "r", "r", "rT" } }; + static const TCGTargetOpDef r_r_rU = { .args_ct_str = { "r", "r", "rU" } }; + static const TCGTargetOpDef r_rI_ri + = { .args_ct_str = { "r", "rI", "ri" } }; + static const TCGTargetOpDef r_rI_rT + = { .args_ct_str = { "r", "rI", "rT" } }; + static const TCGTargetOpDef r_r_rZW + = { .args_ct_str = { "r", "r", "rZW" } }; + static const TCGTargetOpDef L_L_L_L + = { .args_ct_str = { "L", "L", "L", "L" } }; + static const TCGTargetOpDef S_S_S_S + = { .args_ct_str = { "S", "S", "S", "S" } }; + static const TCGTargetOpDef movc + = { .args_ct_str = { "r", "r", "ri", "rZ", "rZ" } }; + static const TCGTargetOpDef dep + = { .args_ct_str = { "r", "0", "rZ" } }; + static const TCGTargetOpDef br2 + = { .args_ct_str = { "r", "r", "ri", "ri" } }; + static const TCGTargetOpDef setc2 + = { .args_ct_str = { "r", "r", "r", "ri", "ri" } }; + static const TCGTargetOpDef add2 + = { .args_ct_str = { "r", "r", "r", "r", "rI", "rZM" } }; + static const TCGTargetOpDef sub2 + = { .args_ct_str = { "r", "r", "rI", "rZM", "r", "r" } }; + static const TCGTargetOpDef v_r = { .args_ct_str = { "v", "r" } }; + static const TCGTargetOpDef v_vr = { .args_ct_str = { "v", "vr" } }; + static const TCGTargetOpDef v_v = { .args_ct_str = { "v", "v" } }; + static const TCGTargetOpDef v_v_v = { .args_ct_str = { "v", "v", "v" } }; + static const TCGTargetOpDef v_v_v_v + = { .args_ct_str = { "v", "v", "v", "v" } }; + + switch (op) { + case INDEX_op_goto_ptr: + return &r; + + case INDEX_op_ld8u_i32: + case INDEX_op_ld8s_i32: + case INDEX_op_ld16u_i32: + case INDEX_op_ld16s_i32: + case INDEX_op_ld_i32: + case INDEX_op_st8_i32: + case INDEX_op_st16_i32: + case INDEX_op_st_i32: + case INDEX_op_ctpop_i32: + case INDEX_op_neg_i32: + case INDEX_op_not_i32: + case INDEX_op_ext8s_i32: + case INDEX_op_ext16s_i32: + case INDEX_op_bswap16_i32: + case INDEX_op_bswap32_i32: + case INDEX_op_extract_i32: + case INDEX_op_ld8u_i64: + case INDEX_op_ld8s_i64: + case INDEX_op_ld16u_i64: + case INDEX_op_ld16s_i64: + case INDEX_op_ld32u_i64: + case INDEX_op_ld32s_i64: + case INDEX_op_ld_i64: + case INDEX_op_st8_i64: + case INDEX_op_st16_i64: + case INDEX_op_st32_i64: + case INDEX_op_st_i64: + case INDEX_op_ctpop_i64: + case INDEX_op_neg_i64: + case INDEX_op_not_i64: + case INDEX_op_ext8s_i64: + case INDEX_op_ext16s_i64: + case INDEX_op_ext32s_i64: + case INDEX_op_ext_i32_i64: + case INDEX_op_extu_i32_i64: + case INDEX_op_bswap16_i64: + case INDEX_op_bswap32_i64: + case INDEX_op_bswap64_i64: + case INDEX_op_extract_i64: + return &r_r; + + case INDEX_op_add_i32: + case INDEX_op_and_i32: + case INDEX_op_or_i32: + case INDEX_op_xor_i32: + case INDEX_op_andc_i32: + case INDEX_op_orc_i32: + case INDEX_op_eqv_i32: + case INDEX_op_shl_i32: + case INDEX_op_shr_i32: + case INDEX_op_sar_i32: + case INDEX_op_rotl_i32: + case INDEX_op_rotr_i32: + case INDEX_op_setcond_i32: + case INDEX_op_and_i64: + case INDEX_op_andc_i64: + case INDEX_op_shl_i64: + case INDEX_op_shr_i64: + case INDEX_op_sar_i64: + case INDEX_op_rotl_i64: + case INDEX_op_rotr_i64: + case INDEX_op_setcond_i64: + return &r_r_ri; + case INDEX_op_mul_i32: + case INDEX_op_mul_i64: + return &r_r_rI; + case INDEX_op_div_i32: + case INDEX_op_divu_i32: + case INDEX_op_nand_i32: + case INDEX_op_nor_i32: + case INDEX_op_muluh_i32: + case INDEX_op_mulsh_i32: + case INDEX_op_orc_i64: + case INDEX_op_eqv_i64: + case INDEX_op_nand_i64: + case INDEX_op_nor_i64: + case INDEX_op_div_i64: + case INDEX_op_divu_i64: + case INDEX_op_mulsh_i64: + case INDEX_op_muluh_i64: + return &r_r_r; + case INDEX_op_sub_i32: + return &r_rI_ri; + case INDEX_op_add_i64: + return &r_r_rT; + case INDEX_op_or_i64: + case INDEX_op_xor_i64: + return &r_r_rU; + case INDEX_op_sub_i64: + return &r_rI_rT; + case INDEX_op_clz_i32: + case INDEX_op_ctz_i32: + case INDEX_op_clz_i64: + case INDEX_op_ctz_i64: + return &r_r_rZW; + + case INDEX_op_brcond_i32: + case INDEX_op_brcond_i64: + return &r_ri; + + case INDEX_op_movcond_i32: + case INDEX_op_movcond_i64: + return &movc; + case INDEX_op_deposit_i32: + case INDEX_op_deposit_i64: + return &dep; + case INDEX_op_brcond2_i32: + return &br2; + case INDEX_op_setcond2_i32: + return &setc2; + case INDEX_op_add2_i64: + case INDEX_op_add2_i32: + return &add2; + case INDEX_op_sub2_i64: + case INDEX_op_sub2_i32: + return &sub2; + + case INDEX_op_qemu_ld_i32: + return (TCG_TARGET_REG_BITS == 64 || TARGET_LONG_BITS == 32 + ? &r_L : &r_L_L); + case INDEX_op_qemu_st_i32: + return (TCG_TARGET_REG_BITS == 64 || TARGET_LONG_BITS == 32 + ? &S_S : &S_S_S); + case INDEX_op_qemu_ld_i64: + return (TCG_TARGET_REG_BITS == 64 ? &r_L + : TARGET_LONG_BITS == 32 ? &L_L_L : &L_L_L_L); + case INDEX_op_qemu_st_i64: + return (TCG_TARGET_REG_BITS == 64 ? &S_S + : TARGET_LONG_BITS == 32 ? &S_S_S : &S_S_S_S); + + case INDEX_op_add_vec: + case INDEX_op_sub_vec: + case INDEX_op_mul_vec: + case INDEX_op_and_vec: + case INDEX_op_or_vec: + case INDEX_op_xor_vec: + case INDEX_op_andc_vec: + case INDEX_op_orc_vec: + case INDEX_op_cmp_vec: + case INDEX_op_ssadd_vec: + case INDEX_op_sssub_vec: + case INDEX_op_usadd_vec: + case INDEX_op_ussub_vec: + case INDEX_op_smax_vec: + case INDEX_op_smin_vec: + case INDEX_op_umax_vec: + case INDEX_op_umin_vec: + case INDEX_op_shlv_vec: + case INDEX_op_shrv_vec: + case INDEX_op_sarv_vec: + case INDEX_op_rotlv_vec: + case INDEX_op_rotrv_vec: + case INDEX_op_ppc_mrgh_vec: + case INDEX_op_ppc_mrgl_vec: + case INDEX_op_ppc_muleu_vec: + case INDEX_op_ppc_mulou_vec: + case INDEX_op_ppc_pkum_vec: + case INDEX_op_dup2_vec: + return &v_v_v; + case INDEX_op_not_vec: + case INDEX_op_neg_vec: + return &v_v; + case INDEX_op_dup_vec: + return have_isa_3_00 ? &v_vr : &v_v; + case INDEX_op_ld_vec: + case INDEX_op_st_vec: + case INDEX_op_dupm_vec: + return &v_r; + case INDEX_op_bitsel_vec: + case INDEX_op_ppc_msum_vec: + return &v_v_v_v; + + default: + return NULL; + } +} + +static void tcg_target_init(TCGContext *s) +{ + unsigned long hwcap = qemu_getauxval(AT_HWCAP); + unsigned long hwcap2 = qemu_getauxval(AT_HWCAP2); + + have_isa = tcg_isa_base; + if (hwcap & PPC_FEATURE_ARCH_2_06) { + have_isa = tcg_isa_2_06; + } +#ifdef PPC_FEATURE2_ARCH_2_07 + if (hwcap2 & PPC_FEATURE2_ARCH_2_07) { + have_isa = tcg_isa_2_07; + } +#endif +#ifdef PPC_FEATURE2_ARCH_3_00 + if (hwcap2 & PPC_FEATURE2_ARCH_3_00) { + have_isa = tcg_isa_3_00; + } +#endif + +#ifdef PPC_FEATURE2_HAS_ISEL + /* Prefer explicit instruction from the kernel. */ + have_isel = (hwcap2 & PPC_FEATURE2_HAS_ISEL) != 0; +#else + /* Fall back to knowing Power7 (2.06) has ISEL. */ + have_isel = have_isa_2_06; +#endif + + if (hwcap & PPC_FEATURE_HAS_ALTIVEC) { + have_altivec = true; + /* We only care about the portion of VSX that overlaps Altivec. */ + if (hwcap & PPC_FEATURE_HAS_VSX) { + have_vsx = true; + } + } + + tcg_target_available_regs[TCG_TYPE_I32] = 0xffffffff; + tcg_target_available_regs[TCG_TYPE_I64] = 0xffffffff; + if (have_altivec) { + tcg_target_available_regs[TCG_TYPE_V64] = 0xffffffff00000000ull; + tcg_target_available_regs[TCG_TYPE_V128] = 0xffffffff00000000ull; + } + + tcg_target_call_clobber_regs = 0; + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R0); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R2); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R3); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R4); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R5); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R6); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R7); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R8); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R9); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R10); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R11); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R12); + + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V0); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V1); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V2); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V3); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V4); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V5); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V6); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V7); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V8); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V9); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V10); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V11); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V12); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V13); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V14); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V15); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V16); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V17); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V18); + tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V19); + + s->reserved_regs = 0; + tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); /* tcg temp */ + tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); /* stack pointer */ +#if defined(_CALL_SYSV) + tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2); /* toc pointer */ +#endif +#if defined(_CALL_SYSV) || TCG_TARGET_REG_BITS == 64 + tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); /* thread pointer */ +#endif + tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP1); /* mem temp */ + tcg_regset_set_reg(s->reserved_regs, TCG_VEC_TMP1); + tcg_regset_set_reg(s->reserved_regs, TCG_VEC_TMP2); + if (USE_REG_TB) { + tcg_regset_set_reg(s->reserved_regs, TCG_REG_TB); /* tb->tc_ptr */ + } +} + +#ifdef __ELF__ +typedef struct { + DebugFrameCIE cie; + DebugFrameFDEHeader fde; + uint8_t fde_def_cfa[4]; + uint8_t fde_reg_ofs[ARRAY_SIZE(tcg_target_callee_save_regs) * 2 + 3]; +} DebugFrame; + +/* We're expecting a 2 byte uleb128 encoded value. */ +QEMU_BUILD_BUG_ON(FRAME_SIZE >= (1 << 14)); + +#if TCG_TARGET_REG_BITS == 64 +# define ELF_HOST_MACHINE EM_PPC64 +#else +# define ELF_HOST_MACHINE EM_PPC +#endif + +static DebugFrame debug_frame = { + .cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */ + .cie.id = -1, + .cie.version = 1, + .cie.code_align = 1, + .cie.data_align = (-SZR & 0x7f), /* sleb128 -SZR */ + .cie.return_column = 65, + + /* Total FDE size does not include the "len" member. */ + .fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, fde.cie_offset), + + .fde_def_cfa = { + 12, TCG_REG_R1, /* DW_CFA_def_cfa r1, ... */ + (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */ + (FRAME_SIZE >> 7) + }, + .fde_reg_ofs = { + /* DW_CFA_offset_extended_sf, lr, LR_OFFSET */ + 0x11, 65, (LR_OFFSET / -SZR) & 0x7f, + } +}; + +void tcg_register_jit(void *buf, size_t buf_size) +{ + uint8_t *p = &debug_frame.fde_reg_ofs[3]; + int i; + + for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i, p += 2) { + p[0] = 0x80 + tcg_target_callee_save_regs[i]; + p[1] = (FRAME_SIZE - (REG_SAVE_BOT + i * SZR)) / SZR; + } + + debug_frame.fde.func_start = (uintptr_t)buf; + debug_frame.fde.func_len = buf_size; + + tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame)); +} +#endif /* __ELF__ */ + +void flush_icache_range(uintptr_t start, uintptr_t stop) +{ + uintptr_t p, start1, stop1; + size_t dsize = qemu_dcache_linesize; + size_t isize = qemu_icache_linesize; + + start1 = start & ~(dsize - 1); + stop1 = (stop + dsize - 1) & ~(dsize - 1); + for (p = start1; p < stop1; p += dsize) { + asm volatile ("dcbst 0,%0" : : "r"(p) : "memory"); + } + asm volatile ("sync" : : : "memory"); + + start &= start & ~(isize - 1); + stop1 = (stop + isize - 1) & ~(isize - 1); + for (p = start1; p < stop1; p += isize) { + asm volatile ("icbi 0,%0" : : "r"(p) : "memory"); + } + asm volatile ("sync" : : : "memory"); + asm volatile ("isync" : : : "memory"); +} |