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
30 lines
759 B
C++
30 lines
759 B
C++
// RUN: %clang_cc1 -std=c++11 %s -emit-llvm -o - -triple i686-linux-gnu | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ITANIUM
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// RUN: %clang_cc1 -std=c++11 %s -emit-llvm -o - -triple i686-windows | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-MS
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extern "C" {
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int f();
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int g();
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}
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struct A {
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A(int, int);
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};
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void foo() {
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A a{f(), g()};
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}
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// CHECK-ITANIUM-LABEL: define{{.*}} void @_Z3foov
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// CHECK-MS-LABEL: define dso_local void @"?foo@@YAXXZ"
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// CHECK: call i32 @f()
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// CHECK: call i32 @g()
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struct B : A {
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B();
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};
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B::B() : A{f(), g()} {}
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// CHECK-ITANIUM-LABEL: define{{.*}} void @_ZN1BC2Ev
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// CHECK-MS-LABEL: define dso_local x86_thiscallcc noundef %struct.B* @"??0B@@QAE@XZ"
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// CHECK: call i32 @f()
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// CHECK: call i32 @g()
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