fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
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({{.*}}* byval({{.*}}) align 32
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int f(U u) { return u.f2; }
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}
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