new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39882 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CFrontend/exact-div-expr.c b/test/CFrontend/exact-div-expr.c
new file mode 100644 (file)
index 0000000..6cda928
--- /dev/null
+++ b/test/CFrontend/exact-div-expr.c
@@ -0,0 +1,6 @@
+// RUN: %llvmgcc -S %s -o - -O | grep ashr
+// RUN: %llvmgcc -S %s -o - -O | not grep sdiv
+
+int test(int *A, int *B) {
+  return A-B;
+}