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37 lines
1.5 KiB
37 lines
1.5 KiB
4 months ago
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// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck --check-prefix=CHECK --check-prefix=LINUX %s
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// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-apple-darwin12 | FileCheck --check-prefix=CHECK --check-prefix=DARWIN %s
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int &f();
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// LINUX: @r = thread_local global i32* null
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// DARWIN: @r = internal thread_local global i32* null
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thread_local int &r = f();
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// LINUX: @_ZTH1r = alias void (), void ()* @__tls_init
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// DARWIN: @_ZTH1r = internal alias void (), void ()* @__tls_init
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int &g() { return r; }
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// CHECK: define {{.*}} @[[R_INIT:.*]]()
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// CHECK: call nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) i32* @_Z1fv()
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// CHECK: store i32* %{{.*}}, i32** @r, align 8
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// CHECK-LABEL: define nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) i32* @_Z1gv()
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// LINUX: call i32* @_ZTW1r()
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// DARWIN: call cxx_fast_tlscc i32* @_ZTW1r()
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// CHECK: ret i32* %{{.*}}
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// LINUX: define weak_odr hidden i32* @_ZTW1r() [[ATTR0:#[0-9]+]] comdat {
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// DARWIN: define cxx_fast_tlscc i32* @_ZTW1r() [[ATTR1:#[0-9]+]] {
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// LINUX: call void @_ZTH1r()
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// DARWIN: call cxx_fast_tlscc void @_ZTH1r()
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// CHECK: load i32*, i32** @r, align 8
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// CHECK: ret i32* %{{.*}}
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// LINUX-LABEL: define internal void @__tls_init()
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// DARWIN-LABEL: define internal cxx_fast_tlscc void @__tls_init()
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// CHECK: call void @[[R_INIT]]()
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// LINUX: attributes [[ATTR0]] = { {{.*}}"target-features"{{.*}} }
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// DARWIN: attributes [[ATTR1]] = { {{.*}}nounwind{{.*}}"target-features"{{.*}} }
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