1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -jump-threading < %s | FileCheck %s 3 4define void @test(i8* %ptr) { 5; CHECK-LABEL: @test( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0) 8; CHECK-NEXT: br label [[LOOP:%.*]] 9; CHECK: loop: 10; CHECK-NEXT: [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I_INC:%.*]], [[LATCH:%.*]] ] 11; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[I]], 100 12; CHECK-NEXT: br i1 [[C]], label [[EXIT:%.*]], label [[LATCH]] 13; CHECK: latch: 14; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !3) 15; CHECK-NEXT: store i8 0, i8* [[PTR:%.*]], align 1, !noalias !0 16; CHECK-NEXT: store i8 1, i8* [[PTR]], align 1, !noalias !3 17; CHECK-NEXT: [[I_INC]] = add i32 [[I]], 1 18; CHECK-NEXT: br label [[LOOP]] 19; CHECK: exit: 20; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !5) 21; CHECK-NEXT: store i8 0, i8* [[PTR]], align 1, !noalias !0 22; CHECK-NEXT: store i8 1, i8* [[PTR]], align 1, !noalias !5 23; CHECK-NEXT: ret void 24; 25entry: 26 call void @llvm.experimental.noalias.scope.decl(metadata !0) 27 br label %loop 28 29loop: 30 %i = phi i32 [ 0, %entry ], [ %i.inc, %latch ] 31 %c = icmp eq i32 %i, 100 32 br i1 %c, label %if, label %latch 33 34if: 35 br label %latch 36 37latch: 38 %p = phi i1 [ true, %if ], [ false, %loop ] 39 call void @llvm.experimental.noalias.scope.decl(metadata !3) 40 store i8 0, i8* %ptr, !noalias !0 41 store i8 1, i8* %ptr, !noalias !3 42 %i.inc = add i32 %i, 1 43 br i1 %p, label %exit, label %loop 44 45exit: 46 ret void 47} 48 49declare void @llvm.experimental.noalias.scope.decl(metadata) 50 51!0 = !{!1} 52!1 = distinct !{!1, !2, !"scope1"} 53!2 = distinct !{!2, !"domain"} 54!3 = !{!4} 55!4 = distinct !{!4, !2, !"scope2"} 56 57; CHECK: !0 = !{!1} 58; CHECK: !1 = distinct !{!1, !2, !"scope1"} 59; CHECK: !2 = distinct !{!2, !"domain"} 60; CHECK: !3 = !{!4} 61; CHECK: !4 = distinct !{!4, !2, !"scope2"} 62; CHECK: !5 = !{!6} 63; CHECK: !6 = distinct !{!6, !2, !"scope2:thread"} 64