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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 34/56] tcg/optimize: Split out fold_mov
Date: Wed, 27 Oct 2021 19:41:09 -0700
Message-Id: <20211028024131.1492790-35-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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This is the final entry in the main switch that was in a
different form. After this, we have the option to convert
the switch into a function dispatch table.
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 | 27 ++++++++++++++-------------
1 file changed, 14 insertions(+), 13 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 8524fe1f8a..5f1bd7cd78 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -1015,6 +1015,11 @@ static bool fold_mb(OptContext *ctx, TCGOp *op)
return true;
}
=20
+static bool fold_mov(OptContext *ctx, TCGOp *op)
+{
+ return tcg_opt_gen_mov(ctx, op, op->args[0], op->args[1]);
+}
+
static bool fold_movcond(OptContext *ctx, TCGOp *op)
{
TCGOpcode opc =3D op->opc;
@@ -1748,20 +1753,11 @@ void tcg_optimize(TCGContext *s)
break;
}
=20
- /* Propagate constants through copy operations and do constant
- folding. Constants will be substituted to arguments by register
- allocator where needed and possible. Also detect copies. */
+ /*
+ * Process each opcode.
+ * Sorted alphabetically by opcode as much as possible.
+ */
switch (opc) {
- CASE_OP_32_64_VEC(mov):
- done =3D tcg_opt_gen_mov(&ctx, op, op->args[0], op->args[1]);
- break;
-
- default:
- break;
-
- /* ---------------------------------------------------------- */
- /* Sorted alphabetically by opcode as much as possible. */
-
CASE_OP_32_64_VEC(add):
done =3D fold_add(&ctx, op);
break;
@@ -1831,6 +1827,9 @@ void tcg_optimize(TCGContext *s)
case INDEX_op_mb:
done =3D fold_mb(&ctx, op);
break;
+ CASE_OP_32_64_VEC(mov):
+ done =3D fold_mov(&ctx, op);
+ break;
CASE_OP_32_64(movcond):
done =3D fold_movcond(&ctx, op);
break;
@@ -1900,6 +1899,8 @@ void tcg_optimize(TCGContext *s)
CASE_OP_32_64_VEC(xor):
done =3D fold_xor(&ctx, op);
break;
+ default:
+ break;
}
=20
if (!done) {
--=20
2.25.1