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[Test] Add a regression test for failure introduced by 952ad4701cf0d8da79789f6b83ddaa386c60d535

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This commit is contained in:
Daniil Suchkov 2020-03-05 16:27:19 +07:00
parent 0be08100f6
commit 1ae4357369
1 changed files with 24 additions and 0 deletions
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24
test/Transforms/LoopRotate/freeze-crash.ll Normal file
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; RUN: opt -loop-rotate -disable-output %s
; RUN: opt -passes=rotate -disable-output %s
; Make sure we don't crash on this test.
define void @foo(i32* %arg) {
bb:
%tmp = load i32, i32* %arg, align 4
br label %bb1
bb1: ; preds = %bb7, %bb
%tmp2 = phi i32 [ %tmp, %bb ], [ 1, %bb7 ]
%tmp3 = sub i32 0, %tmp2
%tmp4 = icmp ult i32 0, %tmp3
%tmp5 = freeze i1 %tmp4
br i1 %tmp5, label %bb7, label %bb6
bb6: ; preds = %bb1
ret void
bb7: ; preds = %bb1
%tmp8 = getelementptr inbounds i8, i8* undef, i64 8
br label %bb1
}