File: attr-target-mv-modules.cpp

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// RUN: %clang_cc1 -no-opaque-pointers -std=c++11 -triple x86_64-linux-gnu -fmodules -emit-llvm %s -o - | FileCheck %s
#pragma clang module build A
module A {}
#pragma clang module contents
#pragma clang module begin A
__attribute__((target("default"))) void f();
__attribute__((target("sse4.2"))) void f();
#pragma clang module end
#pragma clang module endbuild

#pragma clang module build B
module B {}
#pragma clang module contents
#pragma clang module begin B
__attribute__((target("default"))) void f();
__attribute__((target("sse4.2"))) void f();
#pragma clang module end
#pragma clang module endbuild

#pragma clang module import A
#pragma clang module import B
void g() { f(); }

// Negative tests to validate that the resolver only calls each 1x.
// CHECK: define weak_odr void ()* @_Z1fv.resolver
// CHECK: ret void ()* @_Z1fv.sse4.2
// CHECK-NOT: ret void ()* @_Z1fv.sse4.2
// CHECK: ret void ()* @_Z1fv
// CHECK-NOT: ret void ()* @_Z1fv