clang/test/CodeGenCXX/attr-target-clones.cpp

// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 6
// RUN: %clang_cc1 -std=c++11 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefixes=ITANIUM,LINUX
// RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-macos -emit-llvm %s -o - | FileCheck %s --check-prefixes=ITANIUM,DARWIN
// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows-pc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS


// Aliases for ifuncs

// Overloaded ifuncs
// struct 'C' ifuncs, note the 'float, U' one doesn't get one.

//
int __attribute__((target_clones("sse4.2", "default"))) overloaded(int) { return 1; }


//
int __attribute__((target_clones("arch=ivybridge", "default"))) overloaded(const char *) { return 2; }


// LINUX-LABEL: define dso_local void @_Z14use_overloadedv(
// LINUX-SAME: ) #[[ATTR1:[0-9]+]] {
// LINUX-NEXT:  [[ENTRY:.*:]]
// LINUX-NEXT:    [[CALL:%.*]] = call noundef i32 @_Z10overloadedi(i32 noundef 1)
// LINUX-NEXT:    [[CALL1:%.*]] = call noundef i32 @_Z10overloadedPKc(ptr noundef null)
// LINUX-NEXT:    ret void
//
// DARWIN-LABEL: define void @_Z14use_overloadedv(
// DARWIN-SAME: ) #[[ATTR1:[0-9]+]] {
// DARWIN-NEXT:  [[ENTRY:.*:]]
// DARWIN-NEXT:    [[CALL:%.*]] = call noundef i32 @_Z10overloadedi(i32 noundef 1)
// DARWIN-NEXT:    [[CALL1:%.*]] = call noundef i32 @_Z10overloadedPKc(ptr noundef null)
// DARWIN-NEXT:    ret void
//
void use_overloaded() {
  overloaded(1);
  overloaded(nullptr);
}

template<typename T, typename U>
struct C {
int __attribute__((target_clones("sse4.2", "default"))) foo(){ return 1;}
};
template<typename U>
struct C<int, U> {
int __attribute__((target_clones("sse4.2", "default"))) foo(){ return 2;}
};
template<typename U>
struct C<float, U> {
int foo(){ return 2;}
};
template<>
//
struct C<double, float> {
int __attribute__((target_clones("sse4.2", "default"))) foo(){ return 3;}
};

// LINUX-LABEL: define dso_local void @_Z16uses_specializedv(
// LINUX-SAME: ) #[[ATTR1]] {
// LINUX-NEXT:  [[ENTRY:.*:]]
// LINUX-NEXT:    [[C:%.*]] = alloca [[STRUCT_C:%.*]], align 1
// LINUX-NEXT:    [[C2:%.*]] = alloca [[STRUCT_C_0:%.*]], align 1
// LINUX-NEXT:    [[C3:%.*]] = alloca [[STRUCT_C_1:%.*]], align 1
// LINUX-NEXT:    [[C4:%.*]] = alloca [[STRUCT_C_2:%.*]], align 1
// LINUX-NEXT:    [[CALL:%.*]] = call noundef i32 @_ZN1CIssE3fooEv(ptr noundef nonnull align 1 dereferenceable(1) [[C]])
// LINUX-NEXT:    [[CALL1:%.*]] = call noundef i32 @_ZN1CIisE3fooEv(ptr noundef nonnull align 1 dereferenceable(1) [[C2]])
// LINUX-NEXT:    [[CALL2:%.*]] = call noundef i32 @_ZN1CIfsE3fooEv(ptr noundef nonnull align 1 dereferenceable(1) [[C3]])
// LINUX-NEXT:    [[CALL3:%.*]] = call noundef i32 @_ZN1CIdfE3fooEv(ptr noundef nonnull align 1 dereferenceable(1) [[C4]])
// LINUX-NEXT:    ret void
//
// DARWIN-LABEL: define void @_Z16uses_specializedv(
// DARWIN-SAME: ) #[[ATTR1]] {
// DARWIN-NEXT:  [[ENTRY:.*:]]
// DARWIN-NEXT:    [[C:%.*]] = alloca [[STRUCT_C:%.*]], align 1
// DARWIN-NEXT:    [[C2:%.*]] = alloca [[STRUCT_C_0:%.*]], align 1
// DARWIN-NEXT:    [[C3:%.*]] = alloca [[STRUCT_C_1:%.*]], align 1
// DARWIN-NEXT:    [[C4:%.*]] = alloca [[STRUCT_C_2:%.*]], align 1
// DARWIN-NEXT:    [[CALL:%.*]] = call noundef i32 @_ZN1CIssE3fooEv(ptr noundef nonnull align 1 dereferenceable(1) [[C]])
// DARWIN-NEXT:    [[CALL1:%.*]] = call noundef i32 @_ZN1CIisE3fooEv(ptr noundef nonnull align 1 dereferenceable(1) [[C2]])
// DARWIN-NEXT:    [[CALL2:%.*]] = call noundef i32 @_ZN1CIfsE3fooEv(ptr noundef nonnull align 1 dereferenceable(1) [[C3]])
// DARWIN-NEXT:    [[CALL3:%.*]] = call noundef i32 @_ZN1CIdfE3fooEv(ptr noundef nonnull align 1 dereferenceable(1) [[C4]])
// DARWIN-NEXT:    ret void
//
void uses_specialized() {
  C<short, short> c;
  c.foo();
  C<int, short> c2;
  c2.foo();
  C<float, short> c3;
  c3.foo();
  // Note this is not an ifunc/mv
  C<double, float> c4;
  c4.foo();
}








//// NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
// ITANIUM: {{.*}}
// WINDOWS: {{.*}}