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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 12/56] tcg/optimize: Split out copy_propagate
Date: Wed, 27 Oct 2021 19:40:47 -0700
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Cc: Luis Pires <luis.pires@eldorado.org.br>,
=?UTF-8?q?Alex=20Benn=C3=A9e?= <alex.bennee@linaro.org>,
=?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <f4bug@amsat.org>
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Continue splitting tcg_optimize.
Reviewed-by: Alex Benn=C3=A9e <alex.bennee@linaro.org>
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 | 22 ++++++++++++++--------
1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 019c5aaf81..fad6f5de1f 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -611,6 +611,19 @@ static void init_arguments(OptContext *ctx, TCGOp *op,=
int nb_args)
}
}
=20
+static void copy_propagate(OptContext *ctx, TCGOp *op,
+ int nb_oargs, int nb_iargs)
+{
+ TCGContext *s =3D ctx->tcg;
+
+ for (int i =3D nb_oargs; i < nb_oargs + nb_iargs; i++) {
+ TCGTemp *ts =3D arg_temp(op->args[i]);
+ if (ts && ts_is_copy(ts)) {
+ op->args[i] =3D temp_arg(find_better_copy(s, ts));
+ }
+ }
+}
+
/* Propagate constants and copies, fold constant expressions. */
void tcg_optimize(TCGContext *s)
{
@@ -646,14 +659,7 @@ void tcg_optimize(TCGContext *s)
nb_iargs =3D def->nb_iargs;
}
init_arguments(&ctx, op, nb_oargs + nb_iargs);
-
- /* Do copy propagation */
- for (i =3D nb_oargs; i < nb_oargs + nb_iargs; i++) {
- TCGTemp *ts =3D arg_temp(op->args[i]);
- if (ts && ts_is_copy(ts)) {
- op->args[i] =3D temp_arg(find_better_copy(s, ts));
- }
- }
+ copy_propagate(&ctx, op, nb_oargs, nb_iargs);
=20
/* For commutative operations make constant second argument */
switch (opc) {
--=20
2.25.1