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-rw-r--r--target-ppc/translate.c41
1 files changed, 33 insertions, 8 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 8885490aa8..655aca6568 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7332,15 +7332,40 @@ static void gen_xxpermdi(DisasContext *ctx)
return;
}
- if ((DM(ctx->opcode) & 2) == 0) {
- tcg_gen_mov_i64(cpu_vsrh(xT(ctx->opcode)), cpu_vsrh(xA(ctx->opcode)));
- } else {
- tcg_gen_mov_i64(cpu_vsrh(xT(ctx->opcode)), cpu_vsrl(xA(ctx->opcode)));
- }
- if ((DM(ctx->opcode) & 1) == 0) {
- tcg_gen_mov_i64(cpu_vsrl(xT(ctx->opcode)), cpu_vsrh(xB(ctx->opcode)));
+ if (unlikely((xT(ctx->opcode) == xA(ctx->opcode)) ||
+ (xT(ctx->opcode) == xB(ctx->opcode)))) {
+ TCGv_i64 xh, xl;
+
+ xh = tcg_temp_new_i64();
+ xl = tcg_temp_new_i64();
+
+ if ((DM(ctx->opcode) & 2) == 0) {
+ tcg_gen_mov_i64(xh, cpu_vsrh(xA(ctx->opcode)));
+ } else {
+ tcg_gen_mov_i64(xh, cpu_vsrl(xA(ctx->opcode)));
+ }
+ if ((DM(ctx->opcode) & 1) == 0) {
+ tcg_gen_mov_i64(xl, cpu_vsrh(xB(ctx->opcode)));
+ } else {
+ tcg_gen_mov_i64(xl, cpu_vsrl(xB(ctx->opcode)));
+ }
+
+ tcg_gen_mov_i64(cpu_vsrh(xT(ctx->opcode)), xh);
+ tcg_gen_mov_i64(cpu_vsrl(xT(ctx->opcode)), xl);
+
+ tcg_temp_free_i64(xh);
+ tcg_temp_free_i64(xl);
} else {
- tcg_gen_mov_i64(cpu_vsrl(xT(ctx->opcode)), cpu_vsrl(xB(ctx->opcode)));
+ if ((DM(ctx->opcode) & 2) == 0) {
+ tcg_gen_mov_i64(cpu_vsrh(xT(ctx->opcode)), cpu_vsrh(xA(ctx->opcode)));
+ } else {
+ tcg_gen_mov_i64(cpu_vsrh(xT(ctx->opcode)), cpu_vsrl(xA(ctx->opcode)));
+ }
+ if ((DM(ctx->opcode) & 1) == 0) {
+ tcg_gen_mov_i64(cpu_vsrl(xT(ctx->opcode)), cpu_vsrh(xB(ctx->opcode)));
+ } else {
+ tcg_gen_mov_i64(cpu_vsrl(xT(ctx->opcode)), cpu_vsrl(xB(ctx->opcode)));
+ }
}
}