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authorRichard Henderson <rth@twiddle.net>2014-03-26 10:59:14 -0700
committerRichard Henderson <rth@twiddle.net>2014-04-18 16:57:37 -0700
commitdf9ebea53ebc1c98217743f56c30ae3a46031bb9 (patch)
treec0ca7191f6e26e1975e36ac180699742f3ae31d2
parent671c835b7dc12bfb3907c6af38f74073fe8fade9 (diff)
downloadfocaccia-qemu-df9ebea53ebc1c98217743f56c30ae3a46031bb9.tar.gz
focaccia-qemu-df9ebea53ebc1c98217743f56c30ae3a46031bb9.zip
tcg: Relax requirement for mulu2_i32 on 32-bit hosts
Instead require either mulu2_i32 or muluh_i32.  The code in tcg-op.h
already supports looking for both.  Previous incomplete conversion?

Signed-off-by: Richard Henderson <rth@twiddle.net>
-rw-r--r--tcg/arm/tcg-target.h1
-rw-r--r--tcg/mips/tcg-target.h1
-rw-r--r--tcg/ppc/tcg-target.h1
-rw-r--r--tcg/tcg.h8
-rw-r--r--tcg/tci/tcg-target.h2
5 files changed, 12 insertions, 1 deletions
diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h
index 3746b6e298..35de34ede8 100644
--- a/tcg/arm/tcg-target.h
+++ b/tcg/arm/tcg-target.h
@@ -79,6 +79,7 @@ extern bool use_idiv_instructions;
 #define TCG_TARGET_HAS_nor_i32          0
 #define TCG_TARGET_HAS_deposit_i32      1
 #define TCG_TARGET_HAS_movcond_i32      1
+#define TCG_TARGET_HAS_mulu2_i32        1
 #define TCG_TARGET_HAS_muls2_i32        1
 #define TCG_TARGET_HAS_muluh_i32        0
 #define TCG_TARGET_HAS_mulsh_i32        0
diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h
index 683c6af8b9..c3822d0d4c 100644
--- a/tcg/mips/tcg-target.h
+++ b/tcg/mips/tcg-target.h
@@ -109,6 +109,7 @@ extern bool use_mips32r2_instructions;
 #define TCG_TARGET_HAS_orc_i32          0
 #define TCG_TARGET_HAS_eqv_i32          0
 #define TCG_TARGET_HAS_nand_i32         0
+#define TCG_TARGET_HAS_mulu2_i32        1
 #define TCG_TARGET_HAS_muls2_i32        1
 #define TCG_TARGET_HAS_muluh_i32        1
 #define TCG_TARGET_HAS_mulsh_i32        1
diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h
index e3395e301c..11689124d0 100644
--- a/tcg/ppc/tcg-target.h
+++ b/tcg/ppc/tcg-target.h
@@ -95,6 +95,7 @@ typedef enum {
 #define TCG_TARGET_HAS_nor_i32          1
 #define TCG_TARGET_HAS_deposit_i32      1
 #define TCG_TARGET_HAS_movcond_i32      1
+#define TCG_TARGET_HAS_mulu2_i32        1
 #define TCG_TARGET_HAS_muls2_i32        0
 #define TCG_TARGET_HAS_muluh_i32        0
 #define TCG_TARGET_HAS_mulsh_i32        0
diff --git a/tcg/tcg.h b/tcg/tcg.h
index f7efcb4202..0bb66775a5 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -97,7 +97,6 @@ typedef uint64_t TCGRegSet;
 /* Turn some undef macros into true macros.  */
 #define TCG_TARGET_HAS_add2_i32         1
 #define TCG_TARGET_HAS_sub2_i32         1
-#define TCG_TARGET_HAS_mulu2_i32        1
 #endif
 
 #ifndef TCG_TARGET_deposit_i32_valid
@@ -121,6 +120,13 @@ typedef uint64_t TCGRegSet;
 #define TCG_TARGET_HAS_rem_i64          0
 #endif
 
+/* For 32-bit targets, some sort of unsigned widening multiply is required.  */
+#if TCG_TARGET_REG_BITS == 32 \
+    && !(defined(TCG_TARGET_HAS_mulu2_i32) \
+         || defined(TCG_TARGET_HAS_muluh_i32))
+# error "Missing unsigned widening multiply"
+#endif
+
 typedef enum TCGOpcode {
 #define DEF(name, oargs, iargs, cargs, flags) INDEX_op_ ## name,
 #include "tcg-opc.h"
diff --git a/tcg/tci/tcg-target.h b/tcg/tci/tcg-target.h
index 6e1da8c007..7869119b12 100644
--- a/tcg/tci/tcg-target.h
+++ b/tcg/tci/tcg-target.h
@@ -118,6 +118,8 @@
 #define TCG_TARGET_HAS_mulu2_i64        0
 #define TCG_TARGET_HAS_muluh_i64        0
 #define TCG_TARGET_HAS_mulsh_i64        0
+#else
+#define TCG_TARGET_HAS_mulu2_i32        1
 #endif /* TCG_TARGET_REG_BITS == 64 */
 
 #define TCG_TARGET_HAS_new_ldst         0