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llvm-mirror/test/Verifier/noalias_scope_decl.ll
Jeroen Dobbelaere 4d4e2b930d Introduce llvm.noalias.decl intrinsic
The ``llvm.experimental.noalias.scope.decl`` intrinsic identifies where a noalias
scope is declared. When the intrinsic is duplicated, a decision must
also be made about the scope: depending on the reason of the duplication,
the scope might need to be duplicated as well.

Reviewed By: nikic, jdoerfert

Differential Revision: https://reviews.llvm.org/D93039
2021-01-16 09:20:45 +01:00

62 lines
2.1 KiB
LLVM

; RUN: not llvm-as -disable-output --verify-noalias-scope-decl-dom < %s 2>&1 | FileCheck %s
define void @test_single_scope01() nounwind ssp {
tail call void @llvm.experimental.noalias.scope.decl(metadata !2)
ret void
}
define void @test_single_scope02() nounwind ssp {
tail call void @llvm.experimental.noalias.scope.decl(metadata !5)
ret void
}
; CHECK: !id.scope.list must point to a list with a single scope
; CHECK-NEXT: tail call void @llvm.experimental.noalias.scope.decl(metadata !5)
define void @test_single_scope03() nounwind ssp {
tail call void @llvm.experimental.noalias.scope.decl(metadata !"test")
ret void
}
; CHECK-NEXT: !id.scope.list must point to an MDNode
; CHECK-NEXT: tail call void @llvm.experimental.noalias.scope.decl(metadata !"test")
define void @test_dom01() nounwind ssp {
tail call void @llvm.experimental.noalias.scope.decl(metadata !2)
tail call void @llvm.experimental.noalias.scope.decl(metadata !8)
ret void
}
define void @test_dom02() nounwind ssp {
tail call void @llvm.experimental.noalias.scope.decl(metadata !2)
tail call void @llvm.experimental.noalias.scope.decl(metadata !6)
ret void
}
; CHECK-NEXT: llvm.experimental.noalias.scope.decl dominates another one with the same scope
; CHECK-NEXT: tail call void @llvm.experimental.noalias.scope.decl(metadata !2)
define void @test_dom03() nounwind ssp {
tail call void @llvm.experimental.noalias.scope.decl(metadata !2)
tail call void @llvm.experimental.noalias.scope.decl(metadata !2)
ret void
}
; CHECK-NEXT: llvm.experimental.noalias.scope.decl dominates another one with the same scope
; CHECK-NEXT: tail call void @llvm.experimental.noalias.scope.decl(metadata !2)
; CHECK-NOT: llvm.experimental.noalias.scope.decl
; Function Attrs: inaccessiblememonly nounwind
declare void @llvm.experimental.noalias.scope.decl(metadata) #1
attributes #1 = { inaccessiblememonly nounwind }
!llvm.module.flags = !{!0}
!llvm.ident = !{!1}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{!"clang"}
!2 = !{!3}
!3 = distinct !{!3, !4, !"test: pA"}
!4 = distinct !{!4, !"test"}
!5 = !{!3, !3}
!6 = !{!3}
!7 = distinct !{!7, !4, !"test: pB"}
!8 = !{!7}