| ; RUN: opt -loop-unroll -loop-simplify -S < %s | FileCheck %s |
| |
| ; This test is one of the tests of PR33494. Its compilation takes |
| ; excessive time if we don't mark visited nodes while looking for |
| ; constants in SCEV expression trees. |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define void @test_01(i32* nocapture %a) local_unnamed_addr { |
| |
| ; CHECK-LABEL: @test_01( |
| |
| entry: |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 96 |
| %arrayidx.promoted51 = load i32, i32* %arrayidx, align 1 |
| br label %while.body |
| |
| while.body: ; preds = %entry, %while.end29 |
| %0 = phi i32 [ %arrayidx.promoted51, %entry ], [ %7, %while.end29 ] |
| %cmp46 = icmp eq i32 %0, 1 |
| %conv47 = zext i1 %cmp46 to i32 |
| %1 = add i32 %0, 1 |
| %2 = icmp ult i32 %1, 3 |
| %div48 = select i1 %2, i32 %0, i32 0 |
| %cmp349 = icmp sgt i32 %div48, %conv47 |
| br i1 %cmp349, label %while.body4.lr.ph, label %while.end29 |
| |
| while.body4.lr.ph: ; preds = %while.body |
| br label %while.body4 |
| |
| while.body4: ; preds = %while.body4.lr.ph, %while.end28 |
| %3 = phi i32 [ %0, %while.body4.lr.ph ], [ %mul17.lcssa, %while.end28 ] |
| br label %while.body13 |
| |
| while.body13: ; preds = %while.body4, %while.end.split |
| %mul1745 = phi i32 [ %3, %while.body4 ], [ %mul17, %while.end.split ] |
| %4 = phi i32 [ 15872, %while.body4 ], [ %add, %while.end.split ] |
| %mul = mul nsw i32 %mul1745, %mul1745 |
| %mul17 = mul nsw i32 %mul, %mul1745 |
| %cmp22 = icmp eq i32 %4, %mul17 |
| br i1 %cmp22, label %while.body13.split, label %while.end.split |
| |
| while.body13.split: ; preds = %while.body13 |
| br label %while.cond19 |
| |
| while.cond19: ; preds = %while.cond19, %while.body13.split |
| br label %while.cond19 |
| |
| while.end.split: ; preds = %while.body13 |
| %add = shl nsw i32 %4, 1 |
| %tobool12 = icmp eq i32 %add, 0 |
| br i1 %tobool12, label %while.end28, label %while.body13 |
| |
| while.end28: ; preds = %while.end.split |
| %add.lcssa = phi i32 [ %add, %while.end.split ] |
| %mul17.lcssa = phi i32 [ %mul17, %while.end.split ] |
| %cmp = icmp eq i32 %mul17.lcssa, 1 |
| %conv = zext i1 %cmp to i32 |
| %5 = add i32 %mul17.lcssa, 1 |
| %6 = icmp ult i32 %5, 3 |
| %div = select i1 %6, i32 %mul17.lcssa, i32 0 |
| %cmp3 = icmp sgt i32 %div, %conv |
| br i1 %cmp3, label %while.body4, label %while.cond1.while.end29_crit_edge |
| |
| while.cond1.while.end29_crit_edge: ; preds = %while.end28 |
| %.lcssa = phi i32 [ %mul17.lcssa, %while.end28 ] |
| %add.lcssa50.lcssa = phi i32 [ %add.lcssa, %while.end28 ] |
| store i32 %add.lcssa50.lcssa, i32* %a, align 4 |
| br label %while.end29 |
| |
| while.end29: ; preds = %while.cond1.while.end29_crit_edge, %while.body |
| %7 = phi i32 [ %.lcssa, %while.cond1.while.end29_crit_edge ], [ %0, %while.body ] |
| br label %while.body |
| } |