56 lines · cpp
1// RUN: %clang_cc1 -std=c++11 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix=LINUX2// RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-macos -emit-llvm %s -o - | FileCheck %s --check-prefix=LINUX3// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows-pc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS4void temp();5void temp(int);6using FP = void(*)(int);7void b() {8 FP f = temp; 9}10 11int __attribute__((target("sse4.2"))) foo(int) { return 0; }12int __attribute__((target("arch=sandybridge"))) foo(int);13int __attribute__((target("arch=ivybridge"))) foo(int) {return 1;}14int __attribute__((target("default"))) foo(int) { return 2; }15 16struct S {17int __attribute__((target("sse4.2"))) foo(int) { return 0; }18int __attribute__((target("arch=sandybridge"))) foo(int);19int __attribute__((target("arch=ivybridge"))) foo(int) {return 1;}20int __attribute__((target("default"))) foo(int) { return 2; }21};22 23using FuncPtr = int (*)(int);24using MemFuncPtr = int (S::*)(int);25 26void f(FuncPtr, MemFuncPtr);27 28int bar() {29 FuncPtr Free = &foo;30 MemFuncPtr Member = &S::foo;31 S s;32 f(foo, &S::foo);33 return Free(1) + (s.*Member)(2);34}35 36// LINUX: @_Z3fooi.ifunc37// LINUX: @_ZN1S3fooEi.ifunc38 39// LINUX: define{{.*}} i32 @_Z3barv()40// Store to Free of ifunc41// LINUX: store ptr @_Z3fooi.ifunc42// Store to Member of ifunc43// LINUX: store { i64, i64 } { i64 ptrtoint (ptr @_ZN1S3fooEi.ifunc to i64), i64 0 }, ptr [[MEMBER:%[a-z]+]]44 45// Call to 'f' with the ifunc46// LINUX: call void @_Z1fPFiiEM1SFiiE(ptr noundef @_Z3fooi.ifunc47 48// WINDOWS: define dso_local noundef i32 @"?bar@@YAHXZ"()49// Store to Free50// WINDOWS: store ptr @"?foo@@YAHH@Z.resolver", ptr51// Store to Member52// WINDOWS: store ptr @"?foo@S@@QEAAHH@Z.resolver", ptr53 54// Call to 'f'55// WINDOWS: call void @"?f@@YAXP6AHH@ZP8S@@EAAHH@Z@Z"(ptr noundef @"?foo@@YAHH@Z.resolver", ptr @"?foo@S@@QEAAHH@Z.resolver")56