1 ;RUN: opt -verify-dom-info -loop-simplify -postdomtree -licm -adce -verify-loop-info -S -o - %s | FileCheck %s 2 ;RUN: opt -verify-dom-info -passes='loop-simplify,require<postdomtree>,require<opt-remark-emit>,loop(licm),function(adce)' -S -o - %s | FileCheck %s 3 4 target triple = "x86_64-unknown-linux-gnu" 5 6 @c = external global i16, align 1 7 8 ;Make sure this test do not crash while accessing PostDomTree which is not 9 ;preserved in LICM. 10 ; 11 ;CHECK-LABEL: fn1() 12 ;CHECK-LABEL: for.cond.loopexit.split.loop.exit 13 ;CHECK-LABEL: for.cond.loopexit.split.loop.exit1 14 define void @fn1() { 15 entry: 16 br label %for.cond 17 18 for.cond: ; preds = %if.end, %for.cond1, %entry 19 %0 = phi i16 [ undef, %entry ], [ ptrtoint (i16* @c to i16), %if.end ], [ %.mux, %for.cond1 ] 20 br i1 undef, label %for.cond1, label %for.end8 21 22 for.cond1: ; preds = %if.end, %for.cond 23 %.mux = select i1 undef, i16 undef, i16 ptrtoint (i16* @c to i16) 24 br i1 undef, label %for.cond, label %if.end 25 26 if.end: ; preds = %for.cond1 27 br i1 undef, label %for.cond, label %for.cond1 28 29 for.end8: ; preds = %for.cond 30 ret void 31 } 32
