1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes='loop-load-elim,indvars,loop-distribute' -enable-loop-distribute -S %s | FileCheck %s 3 4define void @test_pr50940(ptr %A, ptr %B) { 5; CHECK-LABEL: @test_pr50940( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: br label [[OUTER_HEADER:%.*]] 8; CHECK: outer.header: 9; CHECK-NEXT: br i1 false, label [[OUTER_LATCH:%.*]], label [[INNER_PH:%.*]] 10; CHECK: inner.ph: 11; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 4 12; CHECK-NEXT: [[GEP_A_3:%.*]] = getelementptr inbounds i16, ptr [[A]], i64 3 13; CHECK-NEXT: br label [[INNER_LVER_CHECK:%.*]] 14; CHECK: inner.lver.check: 15; CHECK-NEXT: [[UGLYGEP1:%.*]] = getelementptr i8, ptr [[A]], i64 8 16; CHECK-NEXT: [[UGLYGEP2:%.*]] = getelementptr i8, ptr [[B:%.*]], i64 2 17; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[UGLYGEP]], [[UGLYGEP2]] 18; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[B]], [[UGLYGEP1]] 19; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 20; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[INNER_PH3_LVER_ORIG:%.*]], label [[INNER_PH3_LDIST1:%.*]] 21; CHECK: inner.ph3.lver.orig: 22; CHECK-NEXT: br label [[INNER_LVER_ORIG:%.*]] 23; CHECK: inner.lver.orig: 24; CHECK-NEXT: [[IV_LVER_ORIG:%.*]] = phi i16 [ 0, [[INNER_PH3_LVER_ORIG]] ], [ [[IV_NEXT_LVER_ORIG:%.*]], [[INNER_LVER_ORIG]] ] 25; CHECK-NEXT: [[L_LVER_ORIG:%.*]] = load <2 x i16>, ptr [[UGLYGEP]], align 1 26; CHECK-NEXT: store i16 0, ptr [[GEP_A_3]], align 1 27; CHECK-NEXT: store i16 1, ptr [[B]], align 1 28; CHECK-NEXT: [[IV_NEXT_LVER_ORIG]] = add nuw nsw i16 [[IV_LVER_ORIG]], 1 29; CHECK-NEXT: [[C_1_LVER_ORIG:%.*]] = icmp ult i16 [[IV_LVER_ORIG]], 38 30; CHECK-NEXT: br i1 [[C_1_LVER_ORIG]], label [[INNER_LVER_ORIG]], label [[EXIT_LOOPEXIT:%.*]] 31; CHECK: inner.ph3.ldist1: 32; CHECK-NEXT: br label [[INNER_LDIST1:%.*]] 33; CHECK: inner.ldist1: 34; CHECK-NEXT: [[IV_LDIST1:%.*]] = phi i16 [ 0, [[INNER_PH3_LDIST1]] ], [ [[IV_NEXT_LDIST1:%.*]], [[INNER_LDIST1]] ] 35; CHECK-NEXT: [[L_LDIST1:%.*]] = load <2 x i16>, ptr [[UGLYGEP]], align 1, !alias.scope !0, !noalias !3 36; CHECK-NEXT: store i16 0, ptr [[GEP_A_3]], align 1, !alias.scope !0, !noalias !3 37; CHECK-NEXT: [[IV_NEXT_LDIST1]] = add nuw nsw i16 [[IV_LDIST1]], 1 38; CHECK-NEXT: [[C_1_LDIST1:%.*]] = icmp ult i16 [[IV_LDIST1]], 38 39; CHECK-NEXT: br i1 [[C_1_LDIST1]], label [[INNER_LDIST1]], label [[INNER_PH3:%.*]] 40; CHECK: inner.ph3: 41; CHECK-NEXT: br label [[INNER:%.*]] 42; CHECK: inner: 43; CHECK-NEXT: [[IV:%.*]] = phi i16 [ 0, [[INNER_PH3]] ], [ [[IV_NEXT:%.*]], [[INNER]] ] 44; CHECK-NEXT: store i16 1, ptr [[B]], align 1, !alias.scope !3 45; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i16 [[IV]], 1 46; CHECK-NEXT: [[C_1:%.*]] = icmp ult i16 [[IV]], 38 47; CHECK-NEXT: br i1 [[C_1]], label [[INNER]], label [[EXIT_LOOPEXIT4:%.*]] 48; CHECK: outer.latch: 49; CHECK-NEXT: br label [[OUTER_HEADER]] 50; CHECK: exit.loopexit: 51; CHECK-NEXT: br label [[EXIT:%.*]] 52; CHECK: exit.loopexit4: 53; CHECK-NEXT: br label [[EXIT]] 54; CHECK: exit: 55; CHECK-NEXT: ret void 56; 57entry: 58 %gep.A.1 = getelementptr inbounds i16, ptr %A, i64 1 59 br label %outer.header 60 61outer.header: 62 %gep.A.2 = getelementptr inbounds i16, ptr %gep.A.1, i64 1 63 br i1 false, label %outer.latch, label %inner.ph 64 65inner.ph: ; preds = %for.body5 66 %lcssa.gep = phi ptr [ %gep.A.2, %outer.header ] 67 %gep.A.3 = getelementptr inbounds i16, ptr %A, i64 3 68 br label %inner 69 70inner: 71 %iv = phi i16 [ 0, %inner.ph ], [ %iv.next, %inner ] 72 %l = load <2 x i16>, ptr %lcssa.gep, align 1 73 store i16 0, ptr %gep.A.3, align 1 74 store i16 1, ptr %B, align 1 75 %iv.next = add nuw nsw i16 %iv, 1 76 %c.1 = icmp ult i16 %iv, 38 77 br i1 %c.1, label %inner, label %exit 78 79outer.latch: 80 br label %outer.header 81 82exit: 83 ret void 84} 85