blob: 27534919e409117c206ec50055c3fe8d9cbd87f9 [file] [log] [blame]
;RUN: opt -verify-dom-info -loop-simplify -postdomtree -licm -adce -verify-loop-info -S -o - %s | FileCheck %s
;RUN: opt -verify-dom-info -passes='loop-simplify,require<postdomtree>,require<opt-remark-emit>,loop(licm),function(adce)' -S -o - %s | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
@c = external global i16, align 1
;Make sure this test do not crash while accessing PostDomTree which is not
;preserved in LICM.
;CHECK-LABEL: for.cond.loopexit.split.loop.exit
;CHECK-LABEL: for.cond.loopexit.split.loop.exit1
define void @fn1() {
br label %for.cond
for.cond: ; preds = %if.end, %for.cond1, %entry
%0 = phi i16 [ undef, %entry ], [ ptrtoint (i16* @c to i16), %if.end ], [ %.mux, %for.cond1 ]
br i1 undef, label %for.cond1, label %for.end8
for.cond1: ; preds = %if.end, %for.cond
%.mux = select i1 undef, i16 undef, i16 ptrtoint (i16* @c to i16)
br i1 undef, label %for.cond, label %if.end
if.end: ; preds = %for.cond1
br i1 undef, label %for.cond, label %for.cond1
for.end8: ; preds = %for.cond
ret void