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https://github.com/Gericom/teak-llvm.git
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9ca1b94a6d
Multi-versioned functions defined by cpu_dispatch and implemented with IFunc can not be called outside the translation units where they are defined due to lack of symbols. This patch add function aliases for these functions and thus make them visible outside. Differential Revision: https://reviews.llvm.org/D67058 Patch by Senran Zhang llvm-svn: 371586
221 lines
10 KiB
C++
221 lines
10 KiB
C++
// RUN: %clang_cc1 -std=c++11 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix=LINUX
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// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows-pc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS
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struct S {
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int __attribute__((target("sse4.2"))) foo(int) { return 0; }
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int __attribute__((target("arch=sandybridge"))) foo(int);
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int __attribute__((target("arch=ivybridge"))) foo(int) { return 1; }
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int __attribute__((target("default"))) foo(int) { return 2; }
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S &__attribute__((target("arch=ivybridge"))) operator=(const S &) {
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return *this;
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}
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S &__attribute__((target("default"))) operator=(const S &) {
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return *this;
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}
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};
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struct ConvertTo {
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__attribute__((target("arch=ivybridge"))) operator S() const {
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return S{};
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}
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__attribute__((target("default"))) operator S() const {
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return S{};
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}
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};
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int bar() {
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S s;
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S s2;
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s2 = s;
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ConvertTo C;
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s2 = static_cast<S>(C);
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return s.foo(0);
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}
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struct S2 {
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int __attribute__((target("sse4.2"))) foo(int);
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int __attribute__((target("arch=sandybridge"))) foo(int);
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int __attribute__((target("arch=ivybridge"))) foo(int);
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int __attribute__((target("default"))) foo(int);
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};
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int bar2() {
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S2 s;
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return s.foo(0);
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}
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int __attribute__((target("sse4.2"))) S2::foo(int) { return 0; }
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int __attribute__((target("arch=ivybridge"))) S2::foo(int) { return 1; }
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int __attribute__((target("default"))) S2::foo(int) { return 2; }
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template<typename T>
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struct templ {
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int __attribute__((target("sse4.2"))) foo(int) { return 0; }
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int __attribute__((target("arch=sandybridge"))) foo(int);
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int __attribute__((target("arch=ivybridge"))) foo(int) { return 1; }
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int __attribute__((target("default"))) foo(int) { return 2; }
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};
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int templ_use() {
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templ<int> a;
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templ<double> b;
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return a.foo(1) + b.foo(2);
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}
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// LINUX: @_ZN1SaSERKS_.ifunc = weak_odr ifunc %struct.S* (%struct.S*, %struct.S*), %struct.S* (%struct.S*, %struct.S*)* ()* @_ZN1SaSERKS_.resolver
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// LINUX: @_ZNK9ConvertTocv1SEv.ifunc = weak_odr ifunc void (%struct.ConvertTo*), void (%struct.ConvertTo*)* ()* @_ZNK9ConvertTocv1SEv.resolver
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// LINUX: @_ZN1S3fooEi.ifunc = weak_odr ifunc i32 (%struct.S*, i32), i32 (%struct.S*, i32)* ()* @_ZN1S3fooEi.resolver
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// LINUX: @_ZN2S23fooEi.ifunc = weak_odr ifunc i32 (%struct.S2*, i32), i32 (%struct.S2*, i32)* ()* @_ZN2S23fooEi.resolver
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// Templates:
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// LINUX: @_ZN5templIiE3fooEi.ifunc = weak_odr ifunc i32 (%struct.templ*, i32), i32 (%struct.templ*, i32)* ()* @_ZN5templIiE3fooEi.resolver
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// LINUX: @_ZN5templIdE3fooEi.ifunc = weak_odr ifunc i32 (%struct.templ.0*, i32), i32 (%struct.templ.0*, i32)* ()* @_ZN5templIdE3fooEi.resolver
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// LINUX: define i32 @_Z3barv()
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// LINUX: %s = alloca %struct.S, align 1
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// LINUX: %s2 = alloca %struct.S, align 1
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// LINUX: %C = alloca %struct.ConvertTo, align 1
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// LINUX: call dereferenceable(1) %struct.S* @_ZN1SaSERKS_.ifunc(%struct.S* %s2
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// LINUX: call void @_ZNK9ConvertTocv1SEv.ifunc(%struct.ConvertTo* %C)
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// LINUX: call dereferenceable(1) %struct.S* @_ZN1SaSERKS_.ifunc(%struct.S* %s2
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// LINUX: call i32 @_ZN1S3fooEi.ifunc(%struct.S* %s, i32 0)
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// WINDOWS: define dso_local i32 @"?bar@@YAHXZ"()
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// WINDOWS: %s = alloca %struct.S, align 1
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// WINDOWS: %s2 = alloca %struct.S, align 1
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// WINDOWS: %C = alloca %struct.ConvertTo, align 1
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// WINDOWS: call dereferenceable(1) %struct.S* @"??4S@@QEAAAEAU0@AEBU0@@Z.resolver"(%struct.S* %s2
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// WINDOWS: call void @"??BConvertTo@@QEBA?AUS@@XZ.resolver"(%struct.ConvertTo* %C
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// WINDOWS: call dereferenceable(1) %struct.S* @"??4S@@QEAAAEAU0@AEBU0@@Z.resolver"(%struct.S* %s2
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// WINDOWS: call i32 @"?foo@S@@QEAAHH@Z.resolver"(%struct.S* %s, i32 0)
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// LINUX: define weak_odr %struct.S* (%struct.S*, %struct.S*)* @_ZN1SaSERKS_.resolver() comdat
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// LINUX: ret %struct.S* (%struct.S*, %struct.S*)* @_ZN1SaSERKS_.arch_ivybridge
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// LINUX: ret %struct.S* (%struct.S*, %struct.S*)* @_ZN1SaSERKS_
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// WINDOWS: define weak_odr dso_local %struct.S* @"??4S@@QEAAAEAU0@AEBU0@@Z.resolver"(%struct.S* %0, %struct.S* %1)
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// WINDOWS: call %struct.S* @"??4S@@QEAAAEAU0@AEBU0@@Z.arch_ivybridge"
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// WINDOWS: call %struct.S* @"??4S@@QEAAAEAU0@AEBU0@@Z"
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// LINUX: define weak_odr void (%struct.ConvertTo*)* @_ZNK9ConvertTocv1SEv.resolver() comdat
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// LINUX: ret void (%struct.ConvertTo*)* @_ZNK9ConvertTocv1SEv.arch_ivybridge
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// LINUX: ret void (%struct.ConvertTo*)* @_ZNK9ConvertTocv1SEv
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// WINDOWS: define weak_odr dso_local void @"??BConvertTo@@QEBA?AUS@@XZ.resolver"(%struct.ConvertTo* %0, %struct.S* %1)
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// WINDOWS: call void @"??BConvertTo@@QEBA?AUS@@XZ.arch_ivybridge"
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// WINDOWS: call void @"??BConvertTo@@QEBA?AUS@@XZ"
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// LINUX: define weak_odr i32 (%struct.S*, i32)* @_ZN1S3fooEi.resolver() comdat
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// LINUX: ret i32 (%struct.S*, i32)* @_ZN1S3fooEi.arch_sandybridge
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// LINUX: ret i32 (%struct.S*, i32)* @_ZN1S3fooEi.arch_ivybridge
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// LINUX: ret i32 (%struct.S*, i32)* @_ZN1S3fooEi.sse4.2
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// LINUX: ret i32 (%struct.S*, i32)* @_ZN1S3fooEi
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// WINDOWS: define weak_odr dso_local i32 @"?foo@S@@QEAAHH@Z.resolver"(%struct.S* %0, i32 %1)
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// WINDOWS: call i32 @"?foo@S@@QEAAHH@Z.arch_sandybridge"
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// WINDOWS: call i32 @"?foo@S@@QEAAHH@Z.arch_ivybridge"
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// WINDOWS: call i32 @"?foo@S@@QEAAHH@Z.sse4.2"
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// WINDOWS: call i32 @"?foo@S@@QEAAHH@Z"
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// LINUX: define i32 @_Z4bar2v()
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// LINUX: call i32 @_ZN2S23fooEi.ifunc
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// WINDOWS: define dso_local i32 @"?bar2@@YAHXZ"()
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// WINDOWS: call i32 @"?foo@S2@@QEAAHH@Z.resolver"
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// LINUX: define weak_odr i32 (%struct.S2*, i32)* @_ZN2S23fooEi.resolver() comdat
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// LINUX: ret i32 (%struct.S2*, i32)* @_ZN2S23fooEi.arch_sandybridge
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// LINUX: ret i32 (%struct.S2*, i32)* @_ZN2S23fooEi.arch_ivybridge
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// LINUX: ret i32 (%struct.S2*, i32)* @_ZN2S23fooEi.sse4.2
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// LINUX: ret i32 (%struct.S2*, i32)* @_ZN2S23fooEi
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// WINDOWS: define weak_odr dso_local i32 @"?foo@S2@@QEAAHH@Z.resolver"(%struct.S2* %0, i32 %1)
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// WINDOWS: call i32 @"?foo@S2@@QEAAHH@Z.arch_sandybridge"
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// WINDOWS: call i32 @"?foo@S2@@QEAAHH@Z.arch_ivybridge"
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// WINDOWS: call i32 @"?foo@S2@@QEAAHH@Z.sse4.2"
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// WINDOWS: call i32 @"?foo@S2@@QEAAHH@Z"
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// LINUX: define i32 @_ZN2S23fooEi.sse4.2(%struct.S2* %this, i32 %0)
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// LINUX: define i32 @_ZN2S23fooEi.arch_ivybridge(%struct.S2* %this, i32 %0)
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// LINUX: define i32 @_ZN2S23fooEi(%struct.S2* %this, i32 %0)
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// WINDOWS: define dso_local i32 @"?foo@S2@@QEAAHH@Z.sse4.2"(%struct.S2* %this, i32 %0)
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// WINDOWS: define dso_local i32 @"?foo@S2@@QEAAHH@Z.arch_ivybridge"(%struct.S2* %this, i32 %0)
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// WINDOWS: define dso_local i32 @"?foo@S2@@QEAAHH@Z"(%struct.S2* %this, i32 %0)
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// LINUX: define i32 @_Z9templ_usev()
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// LINUX: call i32 @_ZN5templIiE3fooEi.ifunc
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// LINUX: call i32 @_ZN5templIdE3fooEi.ifunc
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// WINDOWS: define dso_local i32 @"?templ_use@@YAHXZ"()
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// WINDOWS: call i32 @"?foo@?$templ@H@@QEAAHH@Z.resolver"
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// WINDOWS: call i32 @"?foo@?$templ@N@@QEAAHH@Z.resolver"
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// LINUX: define weak_odr i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi.resolver() comdat
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// LINUX: ret i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi.arch_sandybridge
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// LINUX: ret i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi.arch_ivybridge
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// LINUX: ret i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi.sse4.2
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// LINUX: ret i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi
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// WINDOWS: define weak_odr dso_local i32 @"?foo@?$templ@H@@QEAAHH@Z.resolver"(%struct.templ* %0, i32 %1)
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// WINDOWS: call i32 @"?foo@?$templ@H@@QEAAHH@Z.arch_sandybridge"
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// WINDOWS: call i32 @"?foo@?$templ@H@@QEAAHH@Z.arch_ivybridge"
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// WINDOWS: call i32 @"?foo@?$templ@H@@QEAAHH@Z.sse4.2"
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// WINDOWS: call i32 @"?foo@?$templ@H@@QEAAHH@Z"
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// LINUX: define weak_odr i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi.resolver() comdat
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// LINUX: ret i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi.arch_sandybridge
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// LINUX: ret i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi.arch_ivybridge
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// LINUX: ret i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi.sse4.2
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// LINUX: ret i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi
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// WINDOWS: define weak_odr dso_local i32 @"?foo@?$templ@N@@QEAAHH@Z.resolver"(%struct.templ.0* %0, i32 %1) comdat
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// WINDOWS: call i32 @"?foo@?$templ@N@@QEAAHH@Z.arch_sandybridge"
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// WINDOWS: call i32 @"?foo@?$templ@N@@QEAAHH@Z.arch_ivybridge"
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// WINDOWS: call i32 @"?foo@?$templ@N@@QEAAHH@Z.sse4.2"
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// WINDOWS: call i32 @"?foo@?$templ@N@@QEAAHH@Z"
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// LINUX: define linkonce_odr i32 @_ZN1S3fooEi.sse4.2(%struct.S* %this, i32 %0)
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// LINUX: ret i32 0
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@S@@QEAAHH@Z.sse4.2"(%struct.S* %this, i32 %0)
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// WINDOWS: ret i32 0
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// LINUX: declare i32 @_ZN1S3fooEi.arch_sandybridge(%struct.S*, i32)
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// WINDOWS: declare dso_local i32 @"?foo@S@@QEAAHH@Z.arch_sandybridge"(%struct.S*, i32)
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// LINUX: define linkonce_odr i32 @_ZN1S3fooEi.arch_ivybridge(%struct.S* %this, i32 %0)
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// LINUX: ret i32 1
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@S@@QEAAHH@Z.arch_ivybridge"(%struct.S* %this, i32 %0)
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// WINDOWS: ret i32 1
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// LINUX: define linkonce_odr i32 @_ZN1S3fooEi(%struct.S* %this, i32 %0)
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// LINUX: ret i32 2
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@S@@QEAAHH@Z"(%struct.S* %this, i32 %0)
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// WINDOWS: ret i32 2
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// LINUX: define linkonce_odr i32 @_ZN5templIiE3fooEi.sse4.2
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// LINUX: declare i32 @_ZN5templIiE3fooEi.arch_sandybridge
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// LINUX: define linkonce_odr i32 @_ZN5templIiE3fooEi.arch_ivybridge
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// LINUX: define linkonce_odr i32 @_ZN5templIiE3fooEi
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@?$templ@H@@QEAAHH@Z.sse4.2"
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// WINDOWS: declare dso_local i32 @"?foo@?$templ@H@@QEAAHH@Z.arch_sandybridge"
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@?$templ@H@@QEAAHH@Z.arch_ivybridge"
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@?$templ@H@@QEAAHH@Z"
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// LINUX: define linkonce_odr i32 @_ZN5templIdE3fooEi.sse4.2
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// LINUX: declare i32 @_ZN5templIdE3fooEi.arch_sandybridge
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// LINUX: define linkonce_odr i32 @_ZN5templIdE3fooEi.arch_ivybridge
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// LINUX: define linkonce_odr i32 @_ZN5templIdE3fooEi
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@?$templ@N@@QEAAHH@Z.sse4.2"
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// WINDOWS: declare dso_local i32 @"?foo@?$templ@N@@QEAAHH@Z.arch_sandybridge"
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@?$templ@N@@QEAAHH@Z.arch_ivybridge"
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// WINDOWS: define linkonce_odr dso_local i32 @"?foo@?$templ@N@@QEAAHH@Z"
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