32 lines
1.2 KiB
LLVM
32 lines
1.2 KiB
LLVM
;RUN: opt -verify-dom-info -loop-simplify -postdomtree -licm -adce -verify-loop-info -S -o - %s | FileCheck %s
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;RUN: opt -verify-dom-info -passes='loop-simplify,require<postdomtree>,require<opt-remark-emit>,loop(licm),function(adce)' -S -o - %s | FileCheck %s
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target triple = "x86_64-unknown-linux-gnu"
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@c = external global i16, align 1
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;Make sure this test do not crash while accessing PostDomTree which is not
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;preserved in LICM.
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;
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;CHECK-LABEL: fn1()
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;CHECK-LABEL: for.cond.loopexit.split.loop.exit
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;CHECK-LABEL: for.cond.loopexit.split.loop.exit1
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define void @fn1() {
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entry:
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br label %for.cond
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for.cond: ; preds = %if.end, %for.cond1, %entry
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%0 = phi i16 [ undef, %entry ], [ ptrtoint (i16* @c to i16), %if.end ], [ %.mux, %for.cond1 ]
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br i1 undef, label %for.cond1, label %for.end8
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for.cond1: ; preds = %if.end, %for.cond
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%.mux = select i1 undef, i16 undef, i16 ptrtoint (i16* @c to i16)
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br i1 undef, label %for.cond, label %if.end
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if.end: ; preds = %for.cond1
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br i1 undef, label %for.cond, label %for.cond1
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for.end8: ; preds = %for.cond
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ret void
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}
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