forked from OSchip/llvm-project
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
// RUN: %clang_cc1 -std=c++11 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s
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void temp();
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void temp(int);
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using FP = void(*)(int);
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void b() {
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FP f = temp;
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}
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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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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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};
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using FuncPtr = int (*)(int);
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using MemFuncPtr = int (S::*)(int);
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void f(FuncPtr, MemFuncPtr);
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int bar() {
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FuncPtr Free = &foo;
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MemFuncPtr Member = &S::foo;
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S s;
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f(foo, &S::foo);
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return Free(1) + (s.*Member)(2);
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}
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// CHECK: @_Z3fooi.ifunc
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// CHECK: @_ZN1S3fooEi.ifunc
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// CHECK: define i32 @_Z3barv()
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// Store to Free of ifunc
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// CHECK: store i32 (i32)* @_Z3fooi.ifunc
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// Store to Member of ifunc
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// CHECK: store { i64, i64 } { i64 ptrtoint (i32 (%struct.S*, i32)* @_ZN1S3fooEi.ifunc to i64), i64 0 }, { i64, i64 }* [[MEMBER:%[a-z]+]]
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// Call to 'f' with the ifunc
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// CHECK: call void @_Z1fPFiiEM1SFiiE(i32 (i32)* @_Z3fooi.ifunc
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