diff options
| -rw-r--r-- | tcg/mips/tcg-target.c.inc | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc index 3b840ecc4c..068deab8c9 100644 --- a/tcg/mips/tcg-target.c.inc +++ b/tcg/mips/tcg-target.c.inc @@ -1101,9 +1101,19 @@ static void tcg_out_movcond(TCGContext *s, TCGCond cond, TCGReg ret, static void tcg_out_call_int(TCGContext *s, const tcg_insn_unit *arg, bool tail) { - /* Note that the ABI requires the called function's address to be - loaded into T9, even if a direct branch is in range. */ - tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T9, (uintptr_t)arg); + /* + * Note that __mips_abicalls requires the called function's address + * to be loaded into $25 (t9), even if a direct branch is in range. + * + * For n64, always drop the pointer into the constant pool. + * We can re-use helper addresses often and do not want any + * of the longer sequences tcg_out_movi may try. + */ + if (sizeof(uintptr_t) == 8) { + tcg_out_movi_pool(s, TCG_REG_T9, (uintptr_t)arg, TCG_REG_TB); + } else { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T9, (uintptr_t)arg); + } /* But do try a direct branch, allowing the cpu better insn prefetch. */ if (tail) { |