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; RUN: opt < %s -reassociate -S
; PR28367
; Check to make sure this test does not assert or segfault. If we get too
; aggressive with retrying instructions it's possible to invalidate our
; iterator. See PR28367 for complete details.
define void @fn1(i32 %a, i1 %c, i32* %ptr) {
entry:
br label %for.cond
for.cond:
%d.0 = phi i32 [ 1, %entry ], [ 2, %for.body ]
br i1 %c, label %for.end, label %for.body
for.body:
%sub1 = sub i32 %a, %d.0
%dead1 = add i32 %sub1, 1
%dead2 = mul i32 %dead1, 3
%dead3 = mul i32 %dead2, %sub1
%sub2 = sub nsw i32 0, %d.0
store i32 %sub2, i32* %ptr, align 4
br label %for.cond
for.end:
ret void
}
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