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-rw-r--r--tcg/arm/tcg-target.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
index 3e03598a73..c4cae8a3bc 100644
--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -295,10 +295,19 @@ static inline void tcg_out_dat_reg2(TCGContext *s,
int cond, int opc0, int opc1, int rd0, int rd1,
int rn0, int rn1, int rm0, int rm1, int shift)
{
- tcg_out32(s, (cond << 28) | (0 << 25) | (opc0 << 21) | (1 << 20) |
- (rn0 << 16) | (rd0 << 12) | shift | rm0);
- tcg_out32(s, (cond << 28) | (0 << 25) | (opc1 << 21) |
- (rn1 << 16) | (rd1 << 12) | shift | rm1);
+ if (rd0 == rn1 || rd0 == rm1) {
+ tcg_out32(s, (cond << 28) | (0 << 25) | (opc0 << 21) | (1 << 20) |
+ (rn0 << 16) | (8 << 12) | shift | rm0);
+ tcg_out32(s, (cond << 28) | (0 << 25) | (opc1 << 21) |
+ (rn1 << 16) | (rd1 << 12) | shift | rm1);
+ tcg_out_dat_reg(s, cond, ARITH_MOV,
+ rd0, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
+ } else {
+ tcg_out32(s, (cond << 28) | (0 << 25) | (opc0 << 21) | (1 << 20) |
+ (rn0 << 16) | (rd0 << 12) | shift | rm0);
+ tcg_out32(s, (cond << 28) | (0 << 25) | (opc1 << 21) |
+ (rn1 << 16) | (rd1 << 12) | shift | rm1);
+ }
}
static inline void tcg_out_dat_imm(TCGContext *s,