a41360f2fb
Sync patch from openeuler/gcc - 20221201 (cherry picked from commit 5487e8942c694fd317f2cbf1662e9eaf33f2f612)
32 lines
1.0 KiB
Diff
32 lines
1.0 KiB
Diff
From b57c55b282e7a9a7b2cc0d3843e58fd7998685e6 Mon Sep 17 00:00:00 2001
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From: zhongyunde <zhongyunde@huawei.com>
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Date: Fri, 4 Nov 2022 23:19:44 +0800
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Subject: [PATCH 23/35] [PHIOPT] Disable the match A?CST1:0 when the CST1 is
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negitive value
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Fix the regression of gcc.target/aarch64/sve/vcond_3.c
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gcc:
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* match.pd (A?CST1:CST2): Disable the simplifcations A? (-CST1):0
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---
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gcc/match.pd | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/gcc/match.pd b/gcc/match.pd
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index 79a0228d2..fc1a34dd3 100644
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--- a/gcc/match.pd
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+++ b/gcc/match.pd
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@@ -3347,7 +3347,8 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
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(if (integer_onep (@1))
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(convert (convert:boolean_type_node @0)))
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/* a ? powerof2cst : 0 -> a << (log2(powerof2cst)) */
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- (if (INTEGRAL_TYPE_P (type) && integer_pow2p (@1))
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+ (if (INTEGRAL_TYPE_P (type) && TYPE_UNSIGNED (TREE_TYPE (@1))
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+ && integer_pow2p (@1))
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(with {
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tree shift = build_int_cst (integer_type_node, tree_log2 (@1));
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}
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--
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2.27.0.windows.1
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