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152c71f3af
The fix is to remove duplicate copy-initialization of the only memcpy-able struct member and to correct the address of aggregately initialized members in destructors' calls during stack unwinding (in order to obtain address of struct member by using GEP instead of 'bitcast'). Differential Revision: http://reviews.llvm.org/D10990 llvm-svn: 242127
47 lines
1007 B
C++
47 lines
1007 B
C++
// Check that initialization of the only one memcpy-able struct member will not
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// be performed twice after successful non-trivial initializtion of the second
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// member.
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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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int globId = 0;
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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 ExplicitCopy {
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int id;
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ExplicitCopy() { id = 15; }
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ExplicitCopy(const ExplicitCopy &x) { id = 25; }
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~ExplicitCopy() { id = 35; }
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};
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struct Container {
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ImplicitCopy o1; // memcpy-able member.
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ExplicitCopy o2; // non-trivial initialization.
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Container() { globId = 1000; }
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~Container() { globId = 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-DAG: call void @llvm.memcpy
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// CHECK-DAG: declare void @llvm.memcpy
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// CHECK-NOT: @llvm.memcpy
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Container c2(c1);
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return 2;
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}
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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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