Define and use OPC_XCHG_ax_r32.
Signed-off-by: Richard Henderson <r...@twiddle.net>
---
tcg/i386/tcg-target.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index 8eb88da..09a56e8 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -192,6 +192,7 @@ static inline int tcg_target_const_match(tcg_target_long
val,
#define OPC_SHIFT_Ib (0xc1)
#define OPC_SHIFT_cl (0xd3)
#define OPC_TESTL (0x85)
+#define OPC_XCHG_ax_r32 (0x90)
#define OPC_GRP3_Ev (0xf7)
#define OPC_GRP5 (0xff)
@@ -770,7 +771,8 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg
*args,
break;
case 3:
if (data_reg == TCG_REG_EDX) {
- tcg_out_opc(s, 0x90 + TCG_REG_EDX); /* xchg %edx, %eax */
+ /* xchg %edx, %eax */
+ tcg_out_opc(s, OPC_XCHG_ax_r32 + TCG_REG_EDX);
tcg_out_mov(s, data_reg2, TCG_REG_EAX);
} else {
tcg_out_mov(s, data_reg, TCG_REG_EAX);
--
1.7.0.1
