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
62 lines
1.2 KiB
C++
62 lines
1.2 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s -target-feature +avx | FileCheck %s
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namespace test1 {
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typedef double __m256d __attribute__((__vector_size__(32)));
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class PR22753 {
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public:
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__m256d data;
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};
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// CHECK: define{{.*}} <4 x double> @_ZN5test14testENS_7PR22753E(<4 x double>
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PR22753 test(PR22753 x) {
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return x;
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}
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}
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namespace test2 {
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typedef double __m128d __attribute__((__vector_size__(16)));
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typedef float __m128 __attribute__((__vector_size__(16)));
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typedef double __m256d __attribute__((__vector_size__(32)));
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typedef float __m256 __attribute__((__vector_size__(32)));
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union U1 {
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__m128 v1;
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__m128d v2;
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};
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union UU1 {
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union U1;
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__m128d v3;
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};
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// CHECK: define{{.*}} <2 x double> @_ZN5test27PR23082ENS_3UU1E(<2 x double>
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UU1 PR23082(UU1 x) {
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return x;
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}
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union U2 {
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__m256 v1;
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__m256d v2;
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};
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union UU2 {
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union U2;
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__m256d v3;
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};
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// CHECK: define{{.*}} <4 x double> @_ZN5test27PR23082ENS_3UU2E(<4 x double>
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UU2 PR23082(UU2 x) {
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return x;
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}
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}
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namespace test3 {
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union U {
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__attribute__((__vector_size__(32))) float f1;
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int f2;
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};
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// CHECK: define{{.*}} i32 @_ZN5test31fENS_1UE({{.*}}* noundef byval({{.*}}) align 32
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int f(U u) { return u.f2; }
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}
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