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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 16/56] tcg/optimize: Return true from tcg_opt_gen_{mov,movi}
Date: Wed, 27 Oct 2021 19:40:51 -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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This will allow callers to tail call to these functions
and return true indicating processing complete.
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 | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 19c01687b4..066e635f73 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -180,7 +180,7 @@ static bool args_are_copies(TCGArg arg1, TCGArg arg2)
return ts_are_copies(arg_temp(arg1), arg_temp(arg2));
}
=20
-static void tcg_opt_gen_mov(OptContext *ctx, TCGOp *op, TCGArg dst, TCGArg=
src)
+static bool tcg_opt_gen_mov(OptContext *ctx, TCGOp *op, TCGArg dst, TCGArg=
src)
{
TCGTemp *dst_ts =3D arg_temp(dst);
TCGTemp *src_ts =3D arg_temp(src);
@@ -192,7 +192,7 @@ static void tcg_opt_gen_mov(OptContext *ctx, TCGOp *op,=
TCGArg dst, TCGArg src)
=20
if (ts_are_copies(dst_ts, src_ts)) {
tcg_op_remove(ctx->tcg, op);
- return;
+ return true;
}
=20
reset_ts(dst_ts);
@@ -228,9 +228,10 @@ static void tcg_opt_gen_mov(OptContext *ctx, TCGOp *op=
, TCGArg dst, TCGArg src)
di->is_const =3D si->is_const;
di->val =3D si->val;
}
+ return true;
}
=20
-static void tcg_opt_gen_movi(OptContext *ctx, TCGOp *op,
+static bool tcg_opt_gen_movi(OptContext *ctx, TCGOp *op,
TCGArg dst, uint64_t val)
{
const TCGOpDef *def =3D &tcg_op_defs[op->opc];
@@ -248,7 +249,7 @@ static void tcg_opt_gen_movi(OptContext *ctx, TCGOp *op,
/* Convert movi to mov with constant temp. */
tv =3D tcg_constant_internal(type, val);
init_ts_info(ctx, tv);
- tcg_opt_gen_mov(ctx, op, dst, temp_arg(tv));
+ return tcg_opt_gen_mov(ctx, op, dst, temp_arg(tv));
}
=20
static uint64_t do_constant_folding_2(TCGOpcode op, uint64_t x, uint64_t y)
--=20
2.25.1