52e97a28d4
Summary: Form dedicated exits after trivial unswitches. Fixes PR38737, PR38283. Reviewers: chandlerc, fedor.sergeev Subscribers: sanjoy, jlebar, uabelho, llvm-commits Differential Revision: https://reviews.llvm.org/D51375 llvm-svn: 340871
26 lines
868 B
LLVM
26 lines
868 B
LLVM
; RUN: opt < %s -simple-loop-unswitch -disable-output
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; PR38283
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; PR38737
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define void @f1() {
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for.cond1thread-pre-split.lr.ph.lr.ph:
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%tobool4 = icmp eq i16 undef, 0
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br label %for.cond1thread-pre-split
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for.cond1thread-pre-split: ; preds = %if.end, %for.cond1thread-pre-split.lr.ph.lr.ph
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%tobool3 = icmp eq i16 undef, 0
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br label %for.body2
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for.body2: ; preds = %if.end6, %for.cond1thread-pre-split
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br i1 %tobool3, label %if.end, label %for.end
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if.end: ; preds = %for.body2
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br i1 %tobool4, label %if.end6, label %for.cond1thread-pre-split
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if.end6: ; preds = %if.end
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br i1 undef, label %for.body2, label %for.end
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for.end: ; preds = %if.end6, %for.body2
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ret void
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}
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