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-rw-r--r--test/CXX/drs/dr158.cpp27
1 files changed, 27 insertions, 0 deletions
diff --git a/test/CXX/drs/dr158.cpp b/test/CXX/drs/dr158.cpp
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+++ b/test/CXX/drs/dr158.cpp
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+// RUN: %clang_cc1 -triple x86_64-linux -std=c++98 %s -O3 -disable-llvm-passes -pedantic-errors -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-linux -std=c++11 %s -O3 -disable-llvm-passes -pedantic-errors -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-linux -std=c++14 %s -O3 -disable-llvm-passes -pedantic-errors -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-linux -std=c++1z %s -O3 -disable-llvm-passes -pedantic-errors -emit-llvm -o - | FileCheck %s
+
+// dr158: yes
+
+// CHECK-LABEL: define {{.*}} @_Z1f
+const int *f(const int * const *p, int **q) {
+ // CHECK: load i32**, {{.*}}, !tbaa ![[INTPTR_TBAA:[^,]*]]
+ const int *x = *p;
+ // CHECK: store i32* null, {{.*}}, !tbaa ![[INTPTR_TBAA]]
+ *q = 0;
+ return x;
+}
+
+struct A {};
+
+// CHECK-LABEL: define {{.*}} @_Z1g
+const int *(A::*const *g(const int *(A::* const **p)[3], int *(A::***q)[3]))[3] {
+ // CHECK: load i64**, {{.*}}, !tbaa ![[MEMPTR_TBAA:[^,]*]]
+ const int *(A::*const *x)[3] = *p;
+ // CHECK: store i64* null, {{.*}}, !tbaa ![[MEMPTR_TBAA]]
+ *q = 0;
+ return x;
+}
+