66 lines
1.9 KiB
Diff
66 lines
1.9 KiB
Diff
From 6995a2f35d0f866068beddae33a8a0e9187861fd Mon Sep 17 00:00:00 2001
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From: Andrew Pinski <apinski@marvell.com>
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Date: Sat, 5 Jun 2021 21:25:58 -0700
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Subject: [PATCH 19/26] Fix PR 100925: Limit some a?CST1:CST2 optimizations to
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intergal types only
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The problem here is with offset (and pointer) types is we produce
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a negative expression when this optimization hits.
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It is easier to disable this optimization for all non-integeral types
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instead of finding an integer type which is the same precission as the
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type to do the negative expression on it.
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OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.
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gcc/ChangeLog:
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PR tree-optimization/100925
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* match.pd (a ? CST1 : CST2): Limit transformations
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that would produce a negative to integeral types only.
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Change !POINTER_TYPE_P to INTEGRAL_TYPE_P also.
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gcc/testsuite/ChangeLog:
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* g++.dg/torture/pr100925.C: New test.
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Reference commit in GCC: d4faa36e7540c573c5dc17850bcd938d0900b2e9
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Signed-off-by: Pronin Alexander 00812787 <pronin.alexander@huawei.com>
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---
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gcc/testsuite/g++.dg/torture/pr100925.C | 24 ++++++++++++++++++++++++
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1 file changed, 24 insertions(+)
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create mode 100644 gcc/testsuite/g++.dg/torture/pr100925.C
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diff --git a/gcc/testsuite/g++.dg/torture/pr100925.C b/gcc/testsuite/g++.dg/torture/pr100925.C
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new file mode 100644
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index 000000000..de13950dc
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--- /dev/null
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+++ b/gcc/testsuite/g++.dg/torture/pr100925.C
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@@ -0,0 +1,24 @@
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+// { dg-do compile }
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+
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+struct QScopedPointerDeleter {
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+ static void cleanup(int *);
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+};
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+class QScopedPointer {
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+ typedef int *QScopedPointer::*RestrictedBool;
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+
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+public:
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+ operator RestrictedBool() { return d ? nullptr : &QScopedPointer::d; }
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+ void reset() {
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+ if (d)
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+ QScopedPointerDeleter::cleanup(d);
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+ }
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+ int *d;
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+};
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+class DOpenGLPaintDevicePrivate {
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+public:
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+ QScopedPointer fbo;
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+} DOpenGLPaintDeviceresize_d;
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+void DOpenGLPaintDeviceresize() {
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+ if (DOpenGLPaintDeviceresize_d.fbo)
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+ DOpenGLPaintDeviceresize_d.fbo.reset();
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+}
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--
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2.27.0
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