forked from OSchip/llvm-project
32 lines
970 B
C++
32 lines
970 B
C++
// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
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template <typename T>
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struct HasStaticInit {
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static const int index;
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};
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extern "C"
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int the_count = 0;
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template <typename T>
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const int HasStaticInit<T>::index = the_count++;
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template <typename T> int func_tmpl1() { return HasStaticInit<T>::index; }
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template <typename T> int func_tmpl2() { return HasStaticInit<T>::index; }
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template <typename T> int func_tmpl3() { return HasStaticInit<T>::index; }
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void useit() {
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func_tmpl1<int>();
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func_tmpl2<int>();
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func_tmpl3<int>();
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}
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// Throw in a final explicit instantiation to see that it doesn't screw things
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// up.
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template struct HasStaticInit<int>;
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// There should only be one entry, not 3.
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// CHECK: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }]
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// There should only be one update to @the_count.
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// CHECK-NOT: store i32 %{{.*}}, i32* @the_count
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// CHECK: store i32 %{{.*}}, i32* @the_count
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// CHECK-NOT: store i32 %{{.*}}, i32* @the_count
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