|  | // RUN: %clang_cc1 -std=c++11 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s | 
|  |  | 
|  | struct S { | 
|  | int __attribute__((target("sse4.2"))) foo(int) { return 0; } | 
|  | int __attribute__((target("arch=sandybridge"))) foo(int); | 
|  | int __attribute__((target("arch=ivybridge"))) foo(int) { return 1; } | 
|  | int __attribute__((target("default"))) foo(int) { return 2; } | 
|  |  | 
|  | S &__attribute__((target("arch=ivybridge"))) operator=(const S &) { | 
|  | return *this; | 
|  | } | 
|  | S &__attribute__((target("default"))) operator=(const S &) { | 
|  | return *this; | 
|  | } | 
|  | }; | 
|  |  | 
|  | struct ConvertTo { | 
|  | __attribute__((target("arch=ivybridge"))) operator S() const { | 
|  | return S{}; | 
|  | } | 
|  | __attribute__((target("default"))) operator S() const { | 
|  | return S{}; | 
|  | } | 
|  | }; | 
|  |  | 
|  | int bar() { | 
|  | S s; | 
|  | S s2; | 
|  | s2 = s; | 
|  |  | 
|  | ConvertTo C; | 
|  | s2 = static_cast<S>(C); | 
|  |  | 
|  | return s.foo(0); | 
|  | } | 
|  |  | 
|  | struct S2 { | 
|  | int __attribute__((target("sse4.2"))) foo(int); | 
|  | int __attribute__((target("arch=sandybridge"))) foo(int); | 
|  | int __attribute__((target("arch=ivybridge"))) foo(int); | 
|  | int __attribute__((target("default"))) foo(int); | 
|  | }; | 
|  |  | 
|  | int bar2() { | 
|  | S2 s; | 
|  | return s.foo(0); | 
|  | } | 
|  |  | 
|  | int __attribute__((target("sse4.2"))) S2::foo(int) { return 0; } | 
|  | int __attribute__((target("arch=ivybridge"))) S2::foo(int) { return 1; } | 
|  | int __attribute__((target("default"))) S2::foo(int) { return 2; } | 
|  |  | 
|  | template<typename T> | 
|  | struct templ { | 
|  | int __attribute__((target("sse4.2"))) foo(int) { return 0; } | 
|  | int __attribute__((target("arch=sandybridge"))) foo(int); | 
|  | int __attribute__((target("arch=ivybridge"))) foo(int) { return 1; } | 
|  | int __attribute__((target("default"))) foo(int) { return 2; } | 
|  | }; | 
|  |  | 
|  | int templ_use() { | 
|  | templ<int> a; | 
|  | templ<double> b; | 
|  | return a.foo(1) + b.foo(2); | 
|  | } | 
|  |  | 
|  | // CHECK: @_ZN1SaSERKS_.ifunc = ifunc %struct.S* (%struct.S*, %struct.S*), %struct.S* (%struct.S*, %struct.S*)* ()* @_ZN1SaSERKS_.resolver | 
|  | // CHECK: @_ZNK9ConvertTocv1SEv.ifunc = ifunc void (%struct.ConvertTo*), void (%struct.ConvertTo*)* ()* @_ZNK9ConvertTocv1SEv.resolver | 
|  | // CHECK: @_ZN1S3fooEi.ifunc = ifunc i32 (%struct.S*, i32), i32 (%struct.S*, i32)* ()* @_ZN1S3fooEi.resolver | 
|  | // CHECK: @_ZN2S23fooEi.ifunc = ifunc i32 (%struct.S2*, i32), i32 (%struct.S2*, i32)* ()* @_ZN2S23fooEi.resolver | 
|  | // Templates: | 
|  | // CHECK: @_ZN5templIiE3fooEi.ifunc = ifunc i32 (%struct.templ*, i32), i32 (%struct.templ*, i32)* ()* @_ZN5templIiE3fooEi.resolver | 
|  | // CHECK: @_ZN5templIdE3fooEi.ifunc = ifunc i32 (%struct.templ.0*, i32), i32 (%struct.templ.0*, i32)* ()* @_ZN5templIdE3fooEi.resolver | 
|  |  | 
|  | // CHECK: define linkonce_odr i32 @_ZN1S3fooEi.sse4.2(%struct.S* %this, i32) | 
|  | // CHECK: ret i32 0 | 
|  |  | 
|  | // CHECK: define linkonce_odr i32 @_ZN1S3fooEi.arch_ivybridge(%struct.S* %this, i32) | 
|  | // CHECK: ret i32 1 | 
|  |  | 
|  | // CHECK: define linkonce_odr i32 @_ZN1S3fooEi(%struct.S* %this, i32) | 
|  | // CHECK: ret i32 2 | 
|  |  | 
|  | // CHECK: define i32 @_Z3barv() | 
|  | // CHECK: %s = alloca %struct.S, align 1 | 
|  | // CHECK: %s2 = alloca %struct.S, align 1 | 
|  | // CHECK: %C = alloca %struct.ConvertTo, align 1 | 
|  | // CHECK: call dereferenceable(1) %struct.S* @_ZN1SaSERKS_.ifunc(%struct.S* %s2 | 
|  | // CHECK: call void @_ZNK9ConvertTocv1SEv.ifunc(%struct.ConvertTo* %C) | 
|  | // CHECK: call dereferenceable(1) %struct.S* @_ZN1SaSERKS_.ifunc(%struct.S* %s2 | 
|  | // CHECK: call i32 @_ZN1S3fooEi.ifunc(%struct.S* %s, i32 0) | 
|  |  | 
|  | // CHECK: define %struct.S* (%struct.S*, %struct.S*)* @_ZN1SaSERKS_.resolver() comdat | 
|  | // CHECK: ret %struct.S* (%struct.S*, %struct.S*)* @_ZN1SaSERKS_.arch_ivybridge | 
|  | // CHECK: ret %struct.S* (%struct.S*, %struct.S*)* @_ZN1SaSERKS_ | 
|  |  | 
|  | // CHECK: define void (%struct.ConvertTo*)* @_ZNK9ConvertTocv1SEv.resolver() comdat | 
|  | // CHECK: ret void (%struct.ConvertTo*)* @_ZNK9ConvertTocv1SEv.arch_ivybridge | 
|  | // CHECK: ret void (%struct.ConvertTo*)* @_ZNK9ConvertTocv1SEv | 
|  |  | 
|  | // CHECK: define i32 (%struct.S*, i32)* @_ZN1S3fooEi.resolver() comdat | 
|  | // CHECK: ret i32 (%struct.S*, i32)* @_ZN1S3fooEi.arch_sandybridge | 
|  | // CHECK: ret i32 (%struct.S*, i32)* @_ZN1S3fooEi.arch_ivybridge | 
|  | // CHECK: ret i32 (%struct.S*, i32)* @_ZN1S3fooEi.sse4.2 | 
|  | // CHECK: ret i32 (%struct.S*, i32)* @_ZN1S3fooEi | 
|  |  | 
|  | // CHECK: define i32 @_Z4bar2v() | 
|  | // CHECK:call i32 @_ZN2S23fooEi.ifunc | 
|  | // define i32 (%struct.S2*, i32)* @_ZN2S23fooEi.resolver() comdat | 
|  | // CHECK: ret i32 (%struct.S2*, i32)* @_ZN2S23fooEi.arch_sandybridge | 
|  | // CHECK: ret i32 (%struct.S2*, i32)* @_ZN2S23fooEi.arch_ivybridge | 
|  | // CHECK: ret i32 (%struct.S2*, i32)* @_ZN2S23fooEi.sse4.2 | 
|  | // CHECK: ret i32 (%struct.S2*, i32)* @_ZN2S23fooEi | 
|  |  | 
|  | // CHECK: define i32 @_ZN2S23fooEi.sse4.2(%struct.S2* %this, i32) | 
|  | // CHECK: define i32 @_ZN2S23fooEi.arch_ivybridge(%struct.S2* %this, i32) | 
|  | // CHECK: define i32 @_ZN2S23fooEi(%struct.S2* %this, i32) | 
|  |  | 
|  | // CHECK: define i32 @_Z9templ_usev() | 
|  | // CHECK:  call i32 @_ZN5templIiE3fooEi.ifunc | 
|  | // CHECK:  call i32 @_ZN5templIdE3fooEi.ifunc | 
|  |  | 
|  | // CHECK: define i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi.resolver() comdat | 
|  | // CHECK: ret i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi.arch_sandybridge | 
|  | // CHECK: ret i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi.arch_ivybridge | 
|  | // CHECK: ret i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi.sse4.2 | 
|  | // CHECK: ret i32 (%struct.templ*, i32)* @_ZN5templIiE3fooEi | 
|  |  | 
|  | // CHECK: define i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi.resolver() comdat | 
|  | // CHECK: ret i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi.arch_sandybridge | 
|  | // CHECK: ret i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi.arch_ivybridge | 
|  | // CHECK: ret i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi.sse4.2 | 
|  | // CHECK: ret i32 (%struct.templ.0*, i32)* @_ZN5templIdE3fooEi | 
|  |  | 
|  | // CHECK: define linkonce_odr i32 @_ZN5templIiE3fooEi.sse4.2 | 
|  | // CHECK: define linkonce_odr i32 @_ZN5templIiE3fooEi.arch_ivybridge | 
|  | // CHECK: define linkonce_odr i32 @_ZN5templIiE3fooEi | 
|  |  | 
|  | // CHECK: define linkonce_odr i32 @_ZN5templIdE3fooEi.sse4.2 | 
|  | // CHECK: define linkonce_odr i32 @_ZN5templIdE3fooEi.arch_ivybridge | 
|  | // CHECK: define linkonce_odr i32 @_ZN5templIdE3fooEi | 
|  | // | 
|  | // CHECK: declare i32 @_ZN1S3fooEi.arch_sandybridge(%struct.S*, i32) | 
|  | // CHECK: declare i32 @_ZN5templIiE3fooEi.arch_sandybridge | 
|  | // CHECK: declare i32 @_ZN5templIdE3fooEi.arch_sandybridge |