diff options
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/optimize.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c index c9db14f1d0..24ba6d2830 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -714,6 +714,22 @@ static bool fold_andc(OptContext *ctx, TCGOp *op) return fold_const2(ctx, op); } +static bool fold_brcond(OptContext *ctx, TCGOp *op) +{ + TCGCond cond = op->args[2]; + int i = do_constant_folding_cond(op->opc, op->args[0], op->args[1], cond); + + if (i == 0) { + tcg_op_remove(ctx->tcg, op); + return true; + } + if (i > 0) { + op->opc = INDEX_op_br; + op->args[0] = op->args[3]; + } + return false; +} + static bool fold_brcond2(OptContext *ctx, TCGOp *op) { TCGCond cond = op->args[4]; @@ -1641,20 +1657,6 @@ void tcg_optimize(TCGContext *s) } break; - CASE_OP_32_64(brcond): - i = do_constant_folding_cond(opc, op->args[0], - op->args[1], op->args[2]); - if (i == 0) { - tcg_op_remove(s, op); - continue; - } else if (i > 0) { - memset(&ctx.temps_used, 0, sizeof(ctx.temps_used)); - op->opc = opc = INDEX_op_br; - op->args[0] = op->args[3]; - break; - } - break; - CASE_OP_32_64(movcond): i = do_constant_folding_cond(opc, op->args[1], op->args[2], op->args[5]); @@ -1737,6 +1739,9 @@ void tcg_optimize(TCGContext *s) CASE_OP_32_64_VEC(andc): done = fold_andc(&ctx, op); break; + CASE_OP_32_64(brcond): + done = fold_brcond(&ctx, op); + break; case INDEX_op_brcond2_i32: done = fold_brcond2(&ctx, op); break; |