Fix handling of atomic shift operations, from Serge Pavlov.

llvm-svn: 179600

1 files changed, 47 insertions, 0 deletions

diff --git a/clang/test/Sema/atomic-expr.c b/clang/test/Sema/atomic-expr.c
new file mode 100644
index 00000000000..ecc04c4c68d
--- /dev/null
+++ b/clang/test/Sema/atomic-expr.c
@@ -0,0 +1,47 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only
+// expected-no-diagnostics
+
+_Atomic(unsigned int) data1;
+int _Atomic data2;
+
+// Shift operations
+
+int func_01 (int x) {
+  return data1 << x;
+}
+
+int func_02 (int x) {
+  return x << data1;
+}
+
+int func_03 (int x) {
+  return data2 << x;
+}
+
+int func_04 (int x) {
+  return x << data2;
+}
+
+int func_05 () {
+  return data2 << data1;
+}
+
+int func_06 () {
+  return data1 << data2;
+}
+
+void func_07 (int x) {
+  data1 <<= x;
+}
+
+void func_08 (int x) {
+  data2 <<= x;
+}
+
+void func_09 (int* xp) {
+  *xp <<= data1;
+}
+
+void func_10 (int* xp) {
+  *xp <<= data2;
+}