Check for the returns_twice attribute in callsFunctionThatReturnsTwice. This
fixes PR11038, but there are still some cleanups to be done.
llvm-svn: 141204
diff --git a/llvm/test/Transforms/TailCallElim/setjmp.ll b/llvm/test/Transforms/TailCallElim/setjmp.ll
index 35bb75d..7ef9cb3 100644
--- a/llvm/test/Transforms/TailCallElim/setjmp.ll
+++ b/llvm/test/Transforms/TailCallElim/setjmp.ll
@@ -1,16 +1,29 @@
; RUN: opt < %s -tailcallelim -S | FileCheck %s
-; Test that we don't tail call in a functions that calls setjmp.
+; Test that we don't tail call in a functions that calls returns_twice
+; functions.
+declare void @bar()
+
+; CHECK: foo1
; CHECK-NOT: tail call void @bar()
-define void @foo(i32* %x) {
+define void @foo1(i32* %x) {
bb:
%tmp75 = tail call i32 @setjmp(i32* %x)
call void @bar()
ret void
}
-declare i32 @setjmp(i32*) returns_twice
+declare i32 @setjmp(i32*)
-declare void @bar()
+; CHECK: foo2
+; CHECK-NOT: tail call void @bar()
+
+define void @foo2(i32* %x) {
+bb:
+ %tmp75 = tail call i32 @zed2(i32* %x)
+ call void @bar()
+ ret void
+}
+declare i32 @zed2(i32*) returns_twice