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48 lines
1.1 KiB
48 lines
1.1 KiB
4 months ago
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// Check that destructors of memcpy-able struct members are called properly
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// during stack unwinding after an exception.
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//
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// Check that destructor's argument (address of member to be destroyed) is
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// obtained by taking offset from struct, not by bitcasting pointers.
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//
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// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -O0 -fno-elide-constructors -emit-llvm %s -o - | FileCheck %s
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struct ImplicitCopy {
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int id;
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ImplicitCopy() { id = 10; }
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~ImplicitCopy() { id = 20; }
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};
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struct ThrowCopy {
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int id;
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ThrowCopy() { id = 15; }
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ThrowCopy(const ThrowCopy &x) {
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id = 25;
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throw 1;
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}
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~ThrowCopy() { id = 35; }
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};
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struct Container {
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int id;
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ImplicitCopy o1;
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ThrowCopy o2;
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Container() { id = 1000; }
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~Container() { id = 2000; }
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};
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int main() {
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try {
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Container c1;
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// CHECK-LABEL: main
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// CHECK: %{{.+}} = getelementptr inbounds %struct.Container, %struct.Container* %{{.+}}, i32 0, i32 1
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// CHECK-NOT: %{{.+}} = bitcast %struct.Container* %{{.+}} to %struct.ImplicitCopy*
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Container c2(c1);
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return 2;
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} catch (...) {
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return 1;
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}
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return 0;
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}
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