Don't do tail calls in a function that call setjmp. The stack might be
corrupted when setjmp returns again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131399 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/TailCallElim/setjmp.ll b/test/Transforms/TailCallElim/setjmp.ll
new file mode 100644
index 0000000..7b7fe56
--- /dev/null
+++ b/test/Transforms/TailCallElim/setjmp.ll
@@ -0,0 +1,16 @@
+; RUN: opt < %s -tailcallelim -S | FileCheck %s
+
+; Test that we don't tail call in a functions that calls setjmp.
+
+; CHECK-NOT: tail call void @bar()
+
+define void @foo(i32* %x) {
+bb:
+ %tmp75 = tail call i32 @setjmp(i32* %x)
+ call void @bar()
+ ret void
+}
+
+declare i32 @setjmp(i32*)
+
+declare void @bar()