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
28 lines
882 B
C++
28 lines
882 B
C++
// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -emit-llvm -O3 -fdeclspec \
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// RUN: -disable-llvm-passes -o - %s | FileCheck %s
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int get_x();
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struct A {
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__declspec(property(get = _get_x)) int x;
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static int _get_x(void) {
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return get_x();
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};
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};
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extern const A a;
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// CHECK-LABEL: define{{.*}} void @_Z4testv()
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// CHECK: %i = alloca i32, align 4, addrspace(5)
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// CHECK: %[[ii:.*]] = addrspacecast i32 addrspace(5)* %i to i32*
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// CHECK: %[[cast:.*]] = bitcast i32 addrspace(5)* %i to i8 addrspace(5)*
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// CHECK: call void @llvm.lifetime.start.p5i8(i64 4, i8 addrspace(5)* %[[cast]])
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// CHECK: %call = call noundef i32 @_ZN1A6_get_xEv()
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// CHECK: store i32 %call, i32* %[[ii]]
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// CHECK: %[[cast2:.*]] = bitcast i32 addrspace(5)* %i to i8 addrspace(5)*
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// CHECK: call void @llvm.lifetime.end.p5i8(i64 4, i8 addrspace(5)* %[[cast2]])
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void test()
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{
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int i = a.x;
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}
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