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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 23/56] tcg/optimize: Split out fold_brcond
Date: Wed, 27 Oct 2021 19:40:58 -0700
Message-Id: <20211028024131.1492790-24-richard.henderson@linaro.org>
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Cc: Luis Pires <luis.pires@eldorado.org.br>,
=?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <f4bug@amsat.org>
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Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daud=C3=A9 <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/optimize.c | 33 +++++++++++++++++++--------------
1 file 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);
}
=20
+static bool fold_brcond(OptContext *ctx, TCGOp *op)
+{
+ TCGCond cond =3D op->args[2];
+ int i =3D do_constant_folding_cond(op->opc, op->args[0], op->args[1], =
cond);
+
+ if (i =3D=3D 0) {
+ tcg_op_remove(ctx->tcg, op);
+ return true;
+ }
+ if (i > 0) {
+ op->opc =3D INDEX_op_br;
+ op->args[0] =3D op->args[3];
+ }
+ return false;
+}
+
static bool fold_brcond2(OptContext *ctx, TCGOp *op)
{
TCGCond cond =3D op->args[4];
@@ -1641,20 +1657,6 @@ void tcg_optimize(TCGContext *s)
}
break;
=20
- CASE_OP_32_64(brcond):
- i =3D do_constant_folding_cond(opc, op->args[0],
- op->args[1], op->args[2]);
- if (i =3D=3D 0) {
- tcg_op_remove(s, op);
- continue;
- } else if (i > 0) {
- memset(&ctx.temps_used, 0, sizeof(ctx.temps_used));
- op->opc =3D opc =3D INDEX_op_br;
- op->args[0] =3D op->args[3];
- break;
- }
- break;
-
CASE_OP_32_64(movcond):
i =3D 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 =3D fold_andc(&ctx, op);
break;
+ CASE_OP_32_64(brcond):
+ done =3D fold_brcond(&ctx, op);
+ break;
case INDEX_op_brcond2_i32:
done =3D fold_brcond2(&ctx, op);
break;
--=20
2.25.1