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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -jump-threading < %s | FileCheck %s
define void @test(i8* %ptr) {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0)
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I_INC:%.*]], [[LATCH:%.*]] ]
; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[I]], 100
; CHECK-NEXT: br i1 [[C]], label [[EXIT:%.*]], label [[LATCH]]
; CHECK: latch:
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !3)
; CHECK-NEXT: store i8 0, i8* [[PTR:%.*]], align 1, !noalias !0
; CHECK-NEXT: store i8 1, i8* [[PTR]], align 1, !noalias !3
; CHECK-NEXT: [[I_INC]] = add i32 [[I]], 1
; CHECK-NEXT: br label [[LOOP]]
; CHECK: exit:
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !5)
; CHECK-NEXT: store i8 0, i8* [[PTR]], align 1, !noalias !0
; CHECK-NEXT: store i8 1, i8* [[PTR]], align 1, !noalias !5
; CHECK-NEXT: ret void
;
entry:
call void @llvm.experimental.noalias.scope.decl(metadata !0)
br label %loop
loop:
%i = phi i32 [ 0, %entry ], [ %i.inc, %latch ]
%c = icmp eq i32 %i, 100
br i1 %c, label %if, label %latch
if:
br label %latch
latch:
%p = phi i1 [ true, %if ], [ false, %loop ]
call void @llvm.experimental.noalias.scope.decl(metadata !3)
store i8 0, i8* %ptr, !noalias !0
store i8 1, i8* %ptr, !noalias !3
%i.inc = add i32 %i, 1
br i1 %p, label %exit, label %loop
exit:
ret void
}
declare void @llvm.experimental.noalias.scope.decl(metadata)
!0 = !{!1}
!1 = distinct !{!1, !2, !"scope1"}
!2 = distinct !{!2, !"domain"}
!3 = !{!4}
!4 = distinct !{!4, !2, !"scope2"}
; CHECK: !0 = !{!1}
; CHECK: !1 = distinct !{!1, !2, !"scope1"}
; CHECK: !2 = distinct !{!2, !"domain"}
; CHECK: !3 = !{!4}
; CHECK: !4 = distinct !{!4, !2, !"scope2"}
; CHECK: !5 = !{!6}
; CHECK: !6 = distinct !{!6, !2, !"scope2:thread"}
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