diff --git a/test/Transforms/FunctionAttrs/2008-12-31-NoCapture.ll b/test/Transforms/FunctionAttrs/2008-12-31-NoCapture.ll index 86feb4318c6..61c607dc007 100644 --- a/test/Transforms/FunctionAttrs/2008-12-31-NoCapture.ll +++ b/test/Transforms/FunctionAttrs/2008-12-31-NoCapture.ll @@ -16,6 +16,29 @@ define void @c3(i32* %q) { ret void } +define i1 @c4(i32* %q, i32 %bitno) { + %tmp = ptrtoint i32* %q to i32 + %tmp2 = lshr i32 %tmp, %bitno + %bit = trunc i32 %tmp2 to i1 + br i1 %bit, label %l1, label %l0 +l0: + ret i1 0 ; escaping value not caught by def-use chaining. +l1: + ret i1 1 ; escaping value not caught by def-use chaining. +} + +@lookup_table = global [2 x i1] [ i1 0, i1 1 ] + +define i1 @c5(i32* %q, i32 %bitno) { + %tmp = ptrtoint i32* %q to i32 + %tmp2 = lshr i32 %tmp, %bitno + %bit = and i32 %tmp2, 1 + ; subtle escape mechanism follows + %lookup = getelementptr [2 x i1]* @lookup_table, i32 0, i32 %bit + %val = load i1* %lookup + ret i1 %val +} + define i32 @nc1(i32* %q, i32* %p, i1 %b) { e: br label %l