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authorRichard Henderson <richard.henderson@linaro.org>2021-08-24 11:58:12 -0700
committerRichard Henderson <richard.henderson@linaro.org>2021-10-27 17:11:22 -0700
commit09bacdc2632581cafd2878d91d62ba69dc7574f0 (patch)
tree6b86c594e5f331da74cbe7ace45c585c9702f758 /tcg/optimize.c
parent30dd0bfeb5385342a7f216e661d9b69f6ec7182e (diff)
tcg/optimize: Split out fold_bswap
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/optimize.c')
-rw-r--r--tcg/optimize.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c
index dd65f1afcd..5374c230da 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -841,6 +841,17 @@ static bool fold_brcond2(OptContext *ctx, TCGOp *op)
return false;
}
+static bool fold_bswap(OptContext *ctx, TCGOp *op)
+{
+ if (arg_is_const(op->args[1])) {
+ uint64_t t = arg_info(op->args[1])->val;
+
+ t = do_constant_folding(op->opc, t, op->args[2]);
+ return tcg_opt_gen_movi(ctx, op, op->args[0], t);
+ }
+ return false;
+}
+
static bool fold_call(OptContext *ctx, TCGOp *op)
{
TCGContext *s = ctx->tcg;
@@ -1742,17 +1753,6 @@ void tcg_optimize(TCGContext *s)
}
break;
- CASE_OP_32_64(bswap16):
- CASE_OP_32_64(bswap32):
- case INDEX_op_bswap64_i64:
- if (arg_is_const(op->args[1])) {
- tmp = do_constant_folding(opc, arg_info(op->args[1])->val,
- op->args[2]);
- tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
- continue;
- }
- break;
-
default:
break;
@@ -1777,6 +1777,11 @@ void tcg_optimize(TCGContext *s)
case INDEX_op_brcond2_i32:
done = fold_brcond2(&ctx, op);
break;
+ CASE_OP_32_64(bswap16):
+ CASE_OP_32_64(bswap32):
+ case INDEX_op_bswap64_i64:
+ done = fold_bswap(&ctx, op);
+ break;
CASE_OP_32_64(clz):
CASE_OP_32_64(ctz):
done = fold_count_zeros(&ctx, op);