1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -S -loop-unroll -unroll-force-peel-count=1 -verify-scev -verify-dom-info | FileCheck %s 3 4 5define void @test1(i32 %k) { 6; CHECK-LABEL: @test1( 7; CHECK-NEXT: entry: 8; CHECK-NEXT: br label [[FOR_BODY_PEEL_BEGIN:%.*]] 9; CHECK: for.body.peel.begin: 10; CHECK-NEXT: br label [[FOR_BODY_PEEL:%.*]] 11; CHECK: for.body.peel: 12; CHECK-NEXT: [[INC_PEEL:%.*]] = add nsw i32 0, 1 13; CHECK-NEXT: [[CMP_PEEL:%.*]] = icmp ult i32 0, [[K:%.*]] 14; CHECK-NEXT: br i1 [[CMP_PEEL]], label [[FOR_BODY_PEEL_NEXT:%.*]], label [[FOR_END:%.*]] 15; CHECK: for.body.peel.next: 16; CHECK-NEXT: br label [[FOR_BODY_PEEL_NEXT1:%.*]] 17; CHECK: for.body.peel.next1: 18; CHECK-NEXT: br label [[ENTRY_PEEL_NEWPH:%.*]] 19; CHECK: entry.peel.newph: 20; CHECK-NEXT: br label [[FOR_BODY:%.*]] 21; CHECK: for.body: 22; CHECK-NEXT: [[I_05:%.*]] = phi i32 [ [[INC_PEEL]], [[ENTRY_PEEL_NEWPH]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 23; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_05]], 1 24; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[I_05]], [[K]] 25; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]], !llvm.loop !0 26; CHECK: for.end.loopexit: 27; CHECK-NEXT: br label [[FOR_END]] 28; CHECK: for.end: 29; CHECK-NEXT: ret void 30; 31entry: 32 br label %for.body 33 34for.body: 35 %i.05 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 36 %inc = add nsw i32 %i.05, 1 37 %cmp = icmp ult i32 %i.05, %k 38 br i1 %cmp, label %for.body, label %for.end 39 40for.end: 41 ret void 42} 43