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28 lines
666 B
LLVM
28 lines
666 B
LLVM
; RUN: opt < %s -loop-vectorize -dce
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; Check that we don't fall into an infinite loop.
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define void @test() nounwind {
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entry:
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br label %for.body
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for.body:
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%0 = phi i32 [ 1, %entry ], [ 0, %for.body ]
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br label %for.body
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}
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define void @test2() nounwind {
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv47 = phi i64 [ 0, %entry ], [ %indvars.iv.next48, %for.body ]
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%0 = phi i32 [ 1, %entry ], [ 0, %for.body ]
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%indvars.iv.next48 = add i64 %indvars.iv47, 1
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br i1 undef, label %for.end, label %for.body
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for.end: ; preds = %for.body
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unreachable
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}
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