Vendor import of clang trunk r178860:

http://llvm.org/svn/llvm-project/cfe/trunk@178860

1 files changed, 17 insertions, 0 deletions

diff --git a/test/SemaOpenCL/shifts.cl b/test/SemaOpenCL/shifts.cl
new file mode 100644
index 0000000..5b0c6fb
--- /dev/null
+++ b/test/SemaOpenCL/shifts.cl
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -x cl -O0 -emit-llvm  %s -o - -triple x86_64-linux-gnu | FileCheck %s
+// OpenCL essentially reduces all shift amounts to the last word-size bits before evaluating.
+// Test this both for variables and constants evaluated in the front-end.
+
+// CHECK: @gtest1 = constant i64 2147483648
+__constant const unsigned long gtest1 = 1UL << 31;
+
+// CHECK: @negativeShift32
+int negativeShift32(int a,int b) {
+  // CHECK: %array0 = alloca [256 x i8]
+  char array0[((int)1)<<40];
+  // CHECK: %array1 = alloca [256 x i8]
+  char array1[((int)1)<<(-24)];
+
+  // CHECK: ret i32 65536
+  return ((int)1)<<(-16);
+}