1 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -std=c++98 -o - | FileCheck %s 2 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -std=c++11 -o - | FileCheck -check-prefix=CHECK -check-prefix=CHECK11 %s 3 4 // Check that IR gen doesn't try to do an lvalue-to-rvalue conversion 5 // on a volatile reference result. rdar://problem/8338198 6 namespace test0 { 7 struct A { 8 A(const A& t); 9 A& operator=(const A& t); 10 volatile A& operator=(const volatile A& t) volatile; 11 }; 12 13 volatile A *array; 14 15 // CHECK-LABEL: define void @_ZN5test04testENS_1AE( 16 void test(A t) { 17 // CHECK: [[ARR:%.*]] = load [[A:%.*]]*, [[A:%.*]]** @_ZN5test05arrayE, align 8 18 // CHECK-NEXT: [[IDX:%.*]] = getelementptr inbounds [[A]], [[A]]* [[ARR]], i64 0 19 // CHECK-NEXT: [[TMP:%.*]] = call dereferenceable({{[0-9]+}}) [[A]]* @_ZNV5test01AaSERVKS0_([[A]]* [[IDX]], [[A]]* dereferenceable({{[0-9]+}}) [[T:%.*]]) 20 // CHECK-NEXT: ret void 21 array[0] = t; 22 } 23 } 24 25 namespace test1 { 26 volatile int *x; 27 28 // CHECK-LABEL: define void @_ZN5test14testEv() 29 void test() { 30 // CHECK: [[TMP:%.*]] = load i32*, i32** @_ZN5test11xE, align 8 31 // CHECK11-NEXT: {{%.*}} = load volatile i32, i32* [[TMP]], align 4 32 // CHECK-NEXT: ret void 33 *x; 34 } 35 } 36