1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -S -loop-unroll -unroll-runtime | FileCheck %s 2*9880d681SAndroid Build Coastguard Workertarget 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-v128:128:128-n32:64" 3*9880d681SAndroid Build Coastguard Workertarget triple = "powerpc64-bgq-linux" 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workerdefine void @test1() nounwind { 6*9880d681SAndroid Build Coastguard Worker; Ensure that we don't crash when the trip count == -1. 7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test1( 8*9880d681SAndroid Build Coastguard Workerentry: 9*9880d681SAndroid Build Coastguard Worker br label %for.cond2.preheader 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Workerfor.cond2.preheader: ; preds = %for.end, %entry 12*9880d681SAndroid Build Coastguard Worker br i1 false, label %middle.block, label %vector.ph 13*9880d681SAndroid Build Coastguard Worker 14*9880d681SAndroid Build Coastguard Workervector.ph: ; preds = %for.cond2.preheader 15*9880d681SAndroid Build Coastguard Worker br label %vector.body 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workervector.body: ; preds = %vector.body, %vector.ph 18*9880d681SAndroid Build Coastguard Worker br i1 undef, label %middle.block.loopexit, label %vector.body 19*9880d681SAndroid Build Coastguard Worker 20*9880d681SAndroid Build Coastguard Workermiddle.block.loopexit: ; preds = %vector.body 21*9880d681SAndroid Build Coastguard Worker br label %middle.block 22*9880d681SAndroid Build Coastguard Worker 23*9880d681SAndroid Build Coastguard Workermiddle.block: ; preds = %middle.block.loopexit, %for.cond2.preheader 24*9880d681SAndroid Build Coastguard Worker br i1 true, label %for.end, label %scalar.preheader 25*9880d681SAndroid Build Coastguard Worker 26*9880d681SAndroid Build Coastguard Workerscalar.preheader: ; preds = %middle.block 27*9880d681SAndroid Build Coastguard Worker br label %for.body4 28*9880d681SAndroid Build Coastguard Worker 29*9880d681SAndroid Build Coastguard Workerfor.body4: ; preds = %for.body4, %scalar.preheader 30*9880d681SAndroid Build Coastguard Worker %indvars.iv = phi i64 [ 16000, %scalar.preheader ], [ %indvars.iv.next, %for.body4 ] 31*9880d681SAndroid Build Coastguard Worker %indvars.iv.next = add i64 %indvars.iv, 1 32*9880d681SAndroid Build Coastguard Worker %lftr.wideiv = trunc i64 %indvars.iv.next to i32 33*9880d681SAndroid Build Coastguard Worker %exitcond = icmp ne i32 %lftr.wideiv, 16000 34*9880d681SAndroid Build Coastguard Worker br i1 %exitcond, label %for.body4, label %for.end.loopexit 35*9880d681SAndroid Build Coastguard Worker 36*9880d681SAndroid Build Coastguard Workerfor.end.loopexit: ; preds = %for.body4 37*9880d681SAndroid Build Coastguard Worker br label %for.end 38*9880d681SAndroid Build Coastguard Worker 39*9880d681SAndroid Build Coastguard Workerfor.end: ; preds = %for.end.loopexit, %middle.block 40*9880d681SAndroid Build Coastguard Worker br i1 undef, label %for.cond2.preheader, label %for.end15 41*9880d681SAndroid Build Coastguard Worker 42*9880d681SAndroid Build Coastguard Workerfor.end15: ; preds = %for.end 43*9880d681SAndroid Build Coastguard Worker ret void 44*9880d681SAndroid Build Coastguard Worker} 45