304f1d59ca
This switches everything to use the memory attribute proposed in https://discourse.llvm.org/t/rfc-unify-memory-effect-attributes/65579. The old argmemonly, inaccessiblememonly and inaccessiblemem_or_argmemonly attributes are dropped. The readnone, readonly and writeonly attributes are restricted to parameters only. The old attributes are auto-upgraded both in bitcode and IR. The bitcode upgrade is a policy requirement that has to be retained indefinitely. The IR upgrade is mainly there so it's not necessary to update all tests using memory attributes in this patch, which is already large enough. We could drop that part after migrating tests, or retain it longer term, to make it easier to import IR from older LLVM versions. High-level Function/CallBase APIs like doesNotAccessMemory() or setDoesNotAccessMemory() are mapped transparently to the memory attribute. Code that directly manipulates attributes (e.g. via AttributeList) on the other hand needs to switch to working with the memory attribute instead. Differential Revision: https://reviews.llvm.org/D135780
96 lines
3.3 KiB
LLVM
96 lines
3.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=4 -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
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%"a" = type { i64 }
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%"b" = type { i8 }
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define hidden i64 @f1() align 2 {
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; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
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; TUNIT-LABEL: define {{[^@]+}}@f1
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; TUNIT-SAME: () #[[ATTR0:[0-9]+]] align 2 {
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; TUNIT-NEXT: entry:
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; TUNIT-NEXT: ret i64 undef
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;
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; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
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; CGSCC-LABEL: define {{[^@]+}}@f1
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; CGSCC-SAME: () #[[ATTR0:[0-9]+]] align 2 {
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; CGSCC-NEXT: entry:
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; CGSCC-NEXT: [[REF_TMP:%.*]] = alloca [[A:%.*]], align 8
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; CGSCC-NEXT: [[CALL2:%.*]] = call i64 @f2() #[[ATTR2:[0-9]+]]
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; CGSCC-NEXT: ret i64 [[CALL2]]
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;
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entry:
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%ref.tmp = alloca %"a", align 8
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%call2 = call i64 @f2(%"a"* %ref.tmp)
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ret i64 %call2
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}
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define internal i64 @f2(%"a"* %this) align 2 {
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; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
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; CGSCC-LABEL: define {{[^@]+}}@f2
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; CGSCC-SAME: () #[[ATTR0]] align 2 {
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; CGSCC-NEXT: entry:
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; CGSCC-NEXT: ret i64 undef
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;
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entry:
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%this.addr = alloca %"a"*, align 8
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store %"a"* %this, %"a"** %this.addr, align 8
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%this1 = load %"a"*, %"a"** %this.addr, align 8
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%0 = bitcast %"a"* %this1 to %"b"*
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call void @f3(%"b"* %0)
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ret i64 undef
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}
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define internal void @f3(%"b"* %this) align 2 {
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; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
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; CGSCC-LABEL: define {{[^@]+}}@f3
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; CGSCC-SAME: () #[[ATTR0]] align 2 {
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; CGSCC-NEXT: entry:
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; CGSCC-NEXT: ret void
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;
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entry:
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%this.addr = alloca %"b"*, align 8
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store %"b"* %this, %"b"** %this.addr, align 8
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%this1 = load %"b"*, %"b"** %this.addr, align 8
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%call = call i1 @f4(%"b"* %this1)
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ret void
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}
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define internal i1 @f4(%"b"* %this) align 2 {
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; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
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; CGSCC-LABEL: define {{[^@]+}}@f4
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; CGSCC-SAME: () #[[ATTR0]] align 2 {
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; CGSCC-NEXT: entry:
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; CGSCC-NEXT: ret i1 undef
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;
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entry:
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%this.addr = alloca %"b"*, align 8
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store %"b"* %this, %"b"** %this.addr, align 8
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%this1 = load %"b"*, %"b"** %this.addr, align 8
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%call = call %"a"* @f5(%"b"* %this1)
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ret i1 undef
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}
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define internal %"a"* @f5(%"b"* %this) align 2 {
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; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
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; CGSCC-LABEL: define {{[^@]+}}@f5
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; CGSCC-SAME: () #[[ATTR1:[0-9]+]] align 2 {
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; CGSCC-NEXT: entry:
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; CGSCC-NEXT: ret %a* undef
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;
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entry:
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%this.addr = alloca %"b"*, align 8
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store %"b"* %this, %"b"** %this.addr, align 8
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%this1 = load %"b"*, %"b"** %this.addr, align 8
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%0 = bitcast %"b"* %this1 to %"a"*
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ret %"a"* %0
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}
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;.
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; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
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;.
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; CGSCC: attributes #[[ATTR0]] = { nofree nosync nounwind willreturn memory(none) }
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; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
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; CGSCC: attributes #[[ATTR2]] = { willreturn }
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;.
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