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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
21 lines
494 B
C++
21 lines
494 B
C++
// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=x86_64-apple-darwin9 | FileCheck %s
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struct B {
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template <class U> U f();
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};
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struct A {
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B b;
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// implicitly rewritten to (*this).b.f<U>()
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template <class U> auto f() -> decltype (b.f<U>());
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template <class U> auto g() -> decltype (this->b.f<U>());
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};
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int main() {
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A a;
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// CHECK: call noundef i32 @_ZN1A1fIiEEDTcldtdtdefpT1b1fIT_EEEv
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a.f<int>();
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// CHECK: call noundef i32 @_ZN1A1gIiEEDTcldtptfpT1b1fIT_EEEv
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a.g<int>();
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}
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