| ; RUN: opt -loop-unroll -disable-output < %s |
| ; PR11361 |
| |
| ; This tests for an iterator invalidation issue. |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define void @func_1() nounwind uwtable { |
| entry: |
| br label %for.cond8.preheader |
| |
| for.cond8.preheader: ; preds = %for.inc15, %entry |
| %l_1264.04 = phi i32 [ 0, %entry ], [ %add.i, %for.inc15 ] |
| %l_1330.0.03 = phi i80 [ undef, %entry ], [ %ins.lcssa, %for.inc15 ] |
| br label %for.body9 |
| |
| for.body9: ; preds = %for.body9, %for.cond8.preheader |
| %l_1330.0.12 = phi i80 [ %l_1330.0.03, %for.cond8.preheader ], [ %ins, %for.body9 ] |
| %storemerge1 = phi i32 [ 7, %for.cond8.preheader ], [ %sub, %for.body9 ] |
| %tmp = lshr i80 %l_1330.0.12, 8 |
| %tmp1 = trunc i80 %tmp to i8 |
| %inc12 = add i8 %tmp1, 1 |
| %tmp2 = zext i8 %inc12 to i80 |
| %tmp3 = shl nuw nsw i80 %tmp2, 8 |
| %mask = and i80 %l_1330.0.12, -65281 |
| %ins = or i80 %tmp3, %mask |
| %sub = add nsw i32 %storemerge1, -1 |
| %tobool = icmp eq i32 %sub, 0 |
| br i1 %tobool, label %for.inc15, label %for.body9 |
| |
| for.inc15: ; preds = %for.body9 |
| %ins.lcssa = phi i80 [ %ins, %for.body9 ] |
| %sext = shl i32 %l_1264.04, 24 |
| %conv.i = ashr exact i32 %sext, 24 |
| %add.i = add nsw i32 %conv.i, 1 |
| %cmp = icmp slt i32 %add.i, 3 |
| br i1 %cmp, label %for.cond8.preheader, label %for.end16 |
| |
| for.end16: ; preds = %for.inc15 |
| ret void |
| } |
