| ;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: fn1() |
| ;CHECK-LABEL: for.cond.loopexit.split.loop.exit |
| ;CHECK-LABEL: for.cond.loopexit.split.loop.exit1 |
| define void @fn1() { |
| entry: |
| 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 |
| } |
