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1b1c8d83d3
Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
20 lines
609 B
C++
20 lines
609 B
C++
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
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// Check that PR17480 is fixed: __attribute__((used)) ignored in templated
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// classes
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namespace InstantiateUsedMemberDefinition {
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template <typename T>
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struct S {
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int __attribute__((used)) f() {
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return 0;
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}
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};
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void test() {
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// Check that InstantiateUsedMemberDefinition::S<int>::f() is defined
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// as a result of the S class template implicit instantiation
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// CHECK: define linkonce_odr noundef i32 @_ZN31InstantiateUsedMemberDefinition1SIiE1fEv
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S<int> inst;
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}
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} // namespace InstantiateUsedMemberDefinition
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