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llvm-mirror/test/Transforms/LoopRotate/freeze-crash.ll

25 lines
673 B
LLVM

; 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
}