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[PATCH v4 46/51] tcg/optimize: Use fold_xx_to_i for rem
From: |
Richard Henderson |
Subject: |
[PATCH v4 46/51] tcg/optimize: Use fold_xx_to_i for rem |
Date: |
Tue, 26 Oct 2021 16:09:38 -0700 |
Recognize the constant function for remainder.
Suggested-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/optimize.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 92684d4b1d..6c6c523a85 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -1623,7 +1623,11 @@ static bool fold_qemu_st(OptContext *ctx, TCGOp *op)
static bool fold_remainder(OptContext *ctx, TCGOp *op)
{
- return fold_const2(ctx, op);
+ if (fold_const2(ctx, op) ||
+ fold_xx_to_i(ctx, op, 1)) {
+ return true;
+ }
+ return false;
}
static bool fold_setcond(OptContext *ctx, TCGOp *op)
--
2.25.1
- [PATCH v4 36/51] tcg/optimize: Split out fold_xi_to_x, (continued)
- [PATCH v4 36/51] tcg/optimize: Split out fold_xi_to_x, Richard Henderson, 2021/10/26
- [PATCH v4 41/51] tcg/optimize: Sink commutative operand swapping into fold functions, Richard Henderson, 2021/10/26
- [PATCH v4 40/51] tcg/optimize: Expand fold_addsub2_i32 to 64-bit ops, Richard Henderson, 2021/10/26
- [PATCH v4 44/51] tcg/optimize: Use fold_xi_to_x for mul, Richard Henderson, 2021/10/26
- [PATCH v4 46/51] tcg/optimize: Use fold_xx_to_i for rem,
Richard Henderson <=
- [PATCH v4 47/51] tcg/optimize: Optimize sign extensions, Richard Henderson, 2021/10/26
- [PATCH v4 50/51] tcg/optimize: Propagate sign info for bit counting, Richard Henderson, 2021/10/26
- [PATCH v4 42/51] tcg/optimize: Stop forcing z_mask to "garbage" for 32-bit values, Richard Henderson, 2021/10/26
- [PATCH v4 43/51] tcg/optimize: Use fold_xx_to_i for orc, Richard Henderson, 2021/10/26