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 `{{.*}} `.
17 lines
521 B
C
17 lines
521 B
C
// RUN: %clang_cc1 -ffreestanding -triple x86_64-unknown-unknown -target-feature +prfchw -emit-llvm -o - %s | FileCheck %s
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#include <x86intrin.h>
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void test_m_prefetch(void *p) {
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return _m_prefetch(p);
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// CHECK-LABEL: define{{.*}} void @test_m_prefetch
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// CHECK: call void @llvm.prefetch.p0i8({{.*}}, i32 0, i32 3, i32 1)
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}
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void test_m_prefetch_w(void *p) {
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return _m_prefetchw(p);
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// CHECK-LABEL: define{{.*}} void @test_m_prefetch_w
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// CHECK: call void @llvm.prefetch.p0i8({{.*}}, i32 1, i32 3, i32 1)
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}
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