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