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-rw-r--r--clang/test/CodeGenCXX/switch-case-folding.cpp18
1 files changed, 18 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/switch-case-folding.cpp b/clang/test/CodeGenCXX/switch-case-folding.cpp
new file mode 100644
index 0000000..d4444b1
--- /dev/null
+++ b/clang/test/CodeGenCXX/switch-case-folding.cpp
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 %s -emit-llvm-only
+// CHECK that we don't crash.
+
+int main(void){
+ int x = 12;
+ // Make sure we don't crash when constant folding the case 4
+ // statement due to the case 5 statement contained in the do loop
+ switch (4) {
+ case 4: do {
+ switch (6) {
+ case 6: {
+ case 5: x++;
+ };
+ };
+ } while (x < 100);
+ }
+ return x;
+}