450 lines
21 KiB
LLVM
450 lines
21 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-annotate-decl-cs -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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@x = global i32 0
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declare void @test1_1(ptr %x1_1, ptr readonly %y1_1, ...)
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; NOTE: readonly for %y1_2 would be OK here but not for the similar situation in test13.
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;
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;.
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; CHECK: @[[X:[a-zA-Z0-9_$"\\.-]+]] = global i32 0
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; CHECK: @[[CONSTANT_MEM:[a-zA-Z0-9_$"\\.-]+]] = external dso_local constant i32, align 4
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;.
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define void @test1_2(ptr %x1_2, ptr %y1_2, ptr %z1_2) {
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; CHECK-LABEL: define {{[^@]+}}@test1_2
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; CHECK-SAME: (ptr [[X1_2:%.*]], ptr nofree [[Y1_2:%.*]], ptr [[Z1_2:%.*]]) {
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; CHECK-NEXT: call void (ptr, ptr, ...) @test1_1(ptr [[X1_2]], ptr nofree readonly [[Y1_2]], ptr [[Z1_2]])
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; CHECK-NEXT: store i32 0, ptr @x, align 4
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; CHECK-NEXT: ret void
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;
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call void (ptr, ptr, ...) @test1_1(ptr %x1_2, ptr %y1_2, ptr %z1_2)
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store i32 0, ptr @x
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ret void
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}
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define ptr @test2(ptr %p) {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write)
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; CHECK-LABEL: define {{[^@]+}}@test2
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; CHECK-SAME: (ptr nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: store i32 0, ptr @x, align 4
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; CHECK-NEXT: ret ptr [[P]]
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;
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store i32 0, ptr @x
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ret ptr %p
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}
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define i1 @test3(ptr %p, ptr %q) {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
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; CHECK-LABEL: define {{[^@]+}}@test3
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; CHECK-SAME: (ptr nofree readnone [[P:%.*]], ptr nofree readnone [[Q:%.*]]) #[[ATTR1:[0-9]+]] {
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; CHECK-NEXT: [[A:%.*]] = icmp ult ptr [[P]], [[Q]]
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; CHECK-NEXT: ret i1 [[A]]
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;
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%A = icmp ult ptr %p, %q
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ret i1 %A
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}
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declare void @test4_1(ptr nocapture) readonly
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define void @test4_2(ptr %p) {
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; CHECK: Function Attrs: nosync memory(read)
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; CHECK-LABEL: define {{[^@]+}}@test4_2
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; CHECK-SAME: (ptr nocapture readonly [[P:%.*]]) #[[ATTR3:[0-9]+]] {
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; CHECK-NEXT: call void @test4_1(ptr nocapture readonly [[P]]) #[[ATTR3]]
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; CHECK-NEXT: ret void
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;
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call void @test4_1(ptr %p)
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ret void
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}
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; Missed optz'n: we could make %q readnone, but don't break test6!
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define void @test5(ptr %p, ptr %q) {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
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; CHECK-LABEL: define {{[^@]+}}@test5
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; CHECK-SAME: (ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[P:%.*]], ptr nofree writeonly [[Q:%.*]]) #[[ATTR4:[0-9]+]] {
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; CHECK-NEXT: store ptr [[Q]], ptr [[P]], align 8
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; CHECK-NEXT: ret void
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;
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store ptr %q, ptr %p
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ret void
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}
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declare void @test6_1()
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; This is not a missed optz'n.
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define void @test6_2(ptr %p, ptr %q) {
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; CHECK-LABEL: define {{[^@]+}}@test6_2
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; CHECK-SAME: (ptr nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[P:%.*]], ptr nofree [[Q:%.*]]) {
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; CHECK-NEXT: store ptr [[Q]], ptr [[P]], align 8
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; CHECK-NEXT: call void @test6_1()
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; CHECK-NEXT: ret void
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;
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store ptr %q, ptr %p
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call void @test6_1()
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ret void
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}
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; inalloca parameters are always considered written
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define void @test7_1(ptr inalloca(i32) %a) {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
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; CHECK-LABEL: define {{[^@]+}}@test7_1
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; CHECK-SAME: (ptr nocapture nofree nonnull writeonly inalloca(i32) dereferenceable(4) [[A:%.*]]) #[[ATTR1]] {
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; CHECK-NEXT: ret void
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;
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ret void
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}
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define ptr @test8_1(ptr %p) {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
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; CHECK-LABEL: define {{[^@]+}}@test8_1
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; CHECK-SAME: (ptr nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) #[[ATTR1]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret ptr [[P]]
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;
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entry:
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ret ptr %p
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}
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define void @test8_2(ptr %p) {
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; TUNIT: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
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; TUNIT-LABEL: define {{[^@]+}}@test8_2
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; TUNIT-SAME: (ptr nocapture nofree writeonly [[P:%.*]]) #[[ATTR4]] {
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; TUNIT-NEXT: entry:
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; TUNIT-NEXT: store i32 10, ptr [[P]], align 4
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; TUNIT-NEXT: ret void
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;
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; CGSCC: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(argmem: write)
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; CGSCC-LABEL: define {{[^@]+}}@test8_2
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; CGSCC-SAME: (ptr nofree writeonly [[P:%.*]]) #[[ATTR5:[0-9]+]] {
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; CGSCC-NEXT: entry:
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; CGSCC-NEXT: [[CALL:%.*]] = call align 4 ptr @test8_1(ptr noalias nofree readnone [[P]]) #[[ATTR17:[0-9]+]]
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; CGSCC-NEXT: store i32 10, ptr [[CALL]], align 4
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; CGSCC-NEXT: ret void
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;
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entry:
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%call = call ptr @test8_1(ptr %p)
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store i32 10, ptr %call, align 4
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ret void
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}
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; CHECK: declare void @llvm.masked.scatter
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declare void @llvm.masked.scatter.v4i32.v4p0(<4 x i32>%val, <4 x ptr>, i32, <4 x i1>)
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; CHECK-NOT: readnone
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; CHECK-NOT: readonly
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define void @test9(<4 x ptr> %ptrs, <4 x i32>%val) {
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; TUNIT: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write)
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; TUNIT-LABEL: define {{[^@]+}}@test9
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; TUNIT-SAME: (<4 x ptr> [[PTRS:%.*]], <4 x i32> [[VAL:%.*]]) #[[ATTR0]] {
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; TUNIT-NEXT: call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> [[VAL]], <4 x ptr> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>) #[[ATTR16:[0-9]+]]
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; TUNIT-NEXT: ret void
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;
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; CGSCC: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write)
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; CGSCC-LABEL: define {{[^@]+}}@test9
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; CGSCC-SAME: (<4 x ptr> [[PTRS:%.*]], <4 x i32> [[VAL:%.*]]) #[[ATTR0]] {
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; CGSCC-NEXT: call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> [[VAL]], <4 x ptr> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>) #[[ATTR18:[0-9]+]]
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; CGSCC-NEXT: ret void
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;
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call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32>%val, <4 x ptr> %ptrs, i32 4, <4 x i1><i1 true, i1 false, i1 true, i1 false>)
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ret void
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}
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; CHECK: declare <4 x i32> @llvm.masked.gather
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declare <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr>, i32, <4 x i1>, <4 x i32>)
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define <4 x i32> @test10(<4 x ptr> %ptrs) {
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; TUNIT: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read)
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; TUNIT-LABEL: define {{[^@]+}}@test10
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; TUNIT-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR7:[0-9]+]] {
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; TUNIT-NEXT: [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef) #[[ATTR17:[0-9]+]]
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; TUNIT-NEXT: ret <4 x i32> [[RES]]
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;
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; CGSCC: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read)
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; CGSCC-LABEL: define {{[^@]+}}@test10
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; CGSCC-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR8:[0-9]+]] {
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; CGSCC-NEXT: [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef) #[[ATTR19:[0-9]+]]
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; CGSCC-NEXT: ret <4 x i32> [[RES]]
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;
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%res = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> %ptrs, i32 4, <4 x i1><i1 true, i1 false, i1 true, i1 false>, <4 x i32>undef)
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ret <4 x i32> %res
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}
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; CHECK: declare <4 x i32> @test11_1
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declare <4 x i32> @test11_1(<4 x ptr>) argmemonly nounwind readonly
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define <4 x i32> @test11_2(<4 x ptr> %ptrs) {
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; TUNIT: Function Attrs: nosync nounwind memory(argmem: read)
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; TUNIT-LABEL: define {{[^@]+}}@test11_2
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; TUNIT-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR9:[0-9]+]] {
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; TUNIT-NEXT: [[RES:%.*]] = call <4 x i32> @test11_1(<4 x ptr> [[PTRS]]) #[[ATTR15:[0-9]+]]
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; TUNIT-NEXT: ret <4 x i32> [[RES]]
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;
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; CGSCC: Function Attrs: nosync nounwind memory(argmem: read)
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; CGSCC-LABEL: define {{[^@]+}}@test11_2
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; CGSCC-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR10:[0-9]+]] {
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; CGSCC-NEXT: [[RES:%.*]] = call <4 x i32> @test11_1(<4 x ptr> [[PTRS]]) #[[ATTR16:[0-9]+]]
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; CGSCC-NEXT: ret <4 x i32> [[RES]]
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;
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%res = call <4 x i32> @test11_1(<4 x ptr> %ptrs)
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ret <4 x i32> %res
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}
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declare <4 x i32> @test12_1(<4 x ptr>) argmemonly nounwind
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; CHECK-NOT: readnone
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define <4 x i32> @test12_2(<4 x ptr> %ptrs) {
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; TUNIT: Function Attrs: nounwind memory(argmem: readwrite)
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; TUNIT-LABEL: define {{[^@]+}}@test12_2
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; TUNIT-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR10:[0-9]+]] {
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; TUNIT-NEXT: [[RES:%.*]] = call <4 x i32> @test12_1(<4 x ptr> [[PTRS]]) #[[ATTR18:[0-9]+]]
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; TUNIT-NEXT: ret <4 x i32> [[RES]]
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;
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; CGSCC: Function Attrs: nounwind memory(argmem: readwrite)
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; CGSCC-LABEL: define {{[^@]+}}@test12_2
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; CGSCC-SAME: (<4 x ptr> [[PTRS:%.*]]) #[[ATTR11:[0-9]+]] {
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; CGSCC-NEXT: [[RES:%.*]] = call <4 x i32> @test12_1(<4 x ptr> [[PTRS]]) #[[ATTR20:[0-9]+]]
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; CGSCC-NEXT: ret <4 x i32> [[RES]]
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;
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%res = call <4 x i32> @test12_1(<4 x ptr> %ptrs)
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ret <4 x i32> %res
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}
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define i32 @volatile_load(ptr %p) {
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; TUNIT: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite)
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; TUNIT-LABEL: define {{[^@]+}}@volatile_load
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; TUNIT-SAME: (ptr nofree noundef align 4 [[P:%.*]]) #[[ATTR11:[0-9]+]] {
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; TUNIT-NEXT: [[LOAD:%.*]] = load volatile i32, ptr [[P]], align 4
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; TUNIT-NEXT: ret i32 [[LOAD]]
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;
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; CGSCC: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite)
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; CGSCC-LABEL: define {{[^@]+}}@volatile_load
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; CGSCC-SAME: (ptr nofree noundef align 4 [[P:%.*]]) #[[ATTR12:[0-9]+]] {
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; CGSCC-NEXT: [[LOAD:%.*]] = load volatile i32, ptr [[P]], align 4
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; CGSCC-NEXT: ret i32 [[LOAD]]
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;
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%load = load volatile i32, ptr %p
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ret i32 %load
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}
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declare void @escape_readnone_ptr(ptr %addr, ptr readnone %ptr)
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declare void @escape_readonly_ptr(ptr %addr, ptr readonly %ptr)
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; The argument pointer %escaped_then_written cannot be marked readnone/only even
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; though the only direct use, in @escape_readnone_ptr/@escape_readonly_ptr,
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; is marked as readnone/only. However, the functions can write the pointer into
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; %addr, causing the store to write to %escaped_then_written.
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;
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define void @unsound_readnone(ptr %ignored, ptr %escaped_then_written) {
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; CHECK-LABEL: define {{[^@]+}}@unsound_readnone
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; CHECK-SAME: (ptr nocapture nofree readnone [[IGNORED:%.*]], ptr nofree [[ESCAPED_THEN_WRITTEN:%.*]]) {
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; CHECK-NEXT: [[ADDR:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: call void @escape_readnone_ptr(ptr noundef nonnull align 8 dereferenceable(8) [[ADDR]], ptr noalias nofree readnone [[ESCAPED_THEN_WRITTEN]])
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; CHECK-NEXT: [[ADDR_LD:%.*]] = load ptr, ptr [[ADDR]], align 8
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; CHECK-NEXT: store i8 0, ptr [[ADDR_LD]], align 1
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; CHECK-NEXT: ret void
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;
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%addr = alloca ptr
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call void @escape_readnone_ptr(ptr %addr, ptr %escaped_then_written)
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%addr.ld = load ptr, ptr %addr
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store i8 0, ptr %addr.ld
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ret void
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}
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define void @unsound_readonly(ptr %ignored, ptr %escaped_then_written) {
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; CHECK-LABEL: define {{[^@]+}}@unsound_readonly
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; CHECK-SAME: (ptr nocapture nofree readnone [[IGNORED:%.*]], ptr nofree [[ESCAPED_THEN_WRITTEN:%.*]]) {
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; CHECK-NEXT: [[ADDR:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: call void @escape_readonly_ptr(ptr noundef nonnull align 8 dereferenceable(8) [[ADDR]], ptr nofree readonly [[ESCAPED_THEN_WRITTEN]])
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; CHECK-NEXT: [[ADDR_LD:%.*]] = load ptr, ptr [[ADDR]], align 8
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; CHECK-NEXT: store i8 0, ptr [[ADDR_LD]], align 1
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; CHECK-NEXT: ret void
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;
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%addr = alloca ptr
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call void @escape_readonly_ptr(ptr %addr, ptr %escaped_then_written)
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%addr.ld = load ptr, ptr %addr
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store i8 0, ptr %addr.ld
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ret void
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}
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; Byval but not readonly/none tests
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;
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;{
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declare void @escape_i8(ptr %ptr)
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define void @byval_not_readonly_1(ptr byval(i8) %written) readonly {
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; CHECK: Function Attrs: nosync memory(read)
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; CHECK-LABEL: define {{[^@]+}}@byval_not_readonly_1
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; CHECK-SAME: (ptr noalias nonnull byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR3]] {
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; CHECK-NEXT: call void @escape_i8(ptr nonnull dereferenceable(1) [[WRITTEN]])
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; CHECK-NEXT: ret void
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;
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call void @escape_i8(ptr %written)
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ret void
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}
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define void @byval_not_readonly_2(ptr byval(i8) %written) readonly {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
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; CHECK-LABEL: define {{[^@]+}}@byval_not_readonly_2
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; CHECK-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR1]] {
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; CHECK-NEXT: store i8 0, ptr [[WRITTEN]], align 1
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; CHECK-NEXT: ret void
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;
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store i8 0, ptr %written
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ret void
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}
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define void @byval_not_readnone_1(ptr byval(i8) %written) readnone {
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; TUNIT: Function Attrs: nosync memory(none)
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; TUNIT-LABEL: define {{[^@]+}}@byval_not_readnone_1
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; TUNIT-SAME: (ptr noalias nonnull byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR12:[0-9]+]] {
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; TUNIT-NEXT: call void @escape_i8(ptr nonnull dereferenceable(1) [[WRITTEN]])
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; TUNIT-NEXT: ret void
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;
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; CGSCC: Function Attrs: nosync memory(none)
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; CGSCC-LABEL: define {{[^@]+}}@byval_not_readnone_1
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; CGSCC-SAME: (ptr noalias nonnull byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR13:[0-9]+]] {
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; CGSCC-NEXT: call void @escape_i8(ptr nonnull dereferenceable(1) [[WRITTEN]])
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; CGSCC-NEXT: ret void
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;
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call void @escape_i8(ptr %written)
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ret void
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}
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define void @byval_not_readnone_2(ptr byval(i8) %written) readnone {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
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; CHECK-LABEL: define {{[^@]+}}@byval_not_readnone_2
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; CHECK-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR1]] {
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; CHECK-NEXT: store i8 0, ptr [[WRITTEN]], align 1
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; CHECK-NEXT: ret void
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;
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store i8 0, ptr %written
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ret void
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}
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define void @byval_no_fnarg(ptr byval(i8) %written) {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write)
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; CHECK-LABEL: define {{[^@]+}}@byval_no_fnarg
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; CHECK-SAME: (ptr noalias nocapture nofree noundef nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) #[[ATTR4]] {
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; CHECK-NEXT: store i8 0, ptr [[WRITTEN]], align 1
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; CHECK-NEXT: ret void
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;
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store i8 0, ptr %written
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ret void
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}
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define void @testbyval(ptr %read_only) {
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; TUNIT: Function Attrs: nosync
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; TUNIT-LABEL: define {{[^@]+}}@testbyval
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; TUNIT-SAME: (ptr nocapture nonnull readonly [[READ_ONLY:%.*]]) #[[ATTR13:[0-9]+]] {
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; TUNIT-NEXT: call void @byval_not_readonly_1(ptr noalias nocapture nonnull readonly byval(i8) [[READ_ONLY]]) #[[ATTR3]]
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; TUNIT-NEXT: call void @byval_not_readnone_1(ptr noalias nocapture nonnull readnone byval(i8) [[READ_ONLY]]) #[[ATTR13]]
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; TUNIT-NEXT: call void @byval_no_fnarg(ptr noalias nocapture nofree noundef nonnull readonly byval(i8) [[READ_ONLY]]) #[[ATTR19:[0-9]+]]
|
|
; TUNIT-NEXT: ret void
|
|
;
|
|
; CGSCC: Function Attrs: nosync
|
|
; CGSCC-LABEL: define {{[^@]+}}@testbyval
|
|
; CGSCC-SAME: (ptr nocapture noundef nonnull readonly dereferenceable(1) [[READ_ONLY:%.*]]) #[[ATTR14:[0-9]+]] {
|
|
; CGSCC-NEXT: call void @byval_not_readonly_1(ptr noalias nocapture noundef nonnull readonly byval(i8) dereferenceable(1) [[READ_ONLY]]) #[[ATTR2:[0-9]+]]
|
|
; CGSCC-NEXT: call void @byval_not_readnone_1(ptr noalias nocapture noundef nonnull readnone byval(i8) dereferenceable(1) [[READ_ONLY]]) #[[ATTR14]]
|
|
; CGSCC-NEXT: call void @byval_no_fnarg(ptr noalias nocapture nofree noundef nonnull readnone byval(i8) dereferenceable(1) [[READ_ONLY]]) #[[ATTR21:[0-9]+]]
|
|
; CGSCC-NEXT: ret void
|
|
;
|
|
call void @byval_not_readonly_1(ptr byval(i8) %read_only)
|
|
call void @byval_not_readonly_2(ptr byval(i8) %read_only)
|
|
call void @byval_not_readnone_1(ptr byval(i8) %read_only)
|
|
call void @byval_not_readnone_2(ptr byval(i8) %read_only)
|
|
call void @byval_no_fnarg(ptr byval(i8) %read_only)
|
|
ret void
|
|
}
|
|
;}
|
|
|
|
declare ptr @maybe_returned_ptr(ptr readonly %ptr) readonly nounwind
|
|
declare i8 @maybe_returned_val(ptr %ptr) readonly nounwind
|
|
declare void @val_use(i8 %ptr) readonly nounwind
|
|
|
|
define void @ptr_uses(ptr %ptr) {
|
|
; TUNIT: Function Attrs: nosync nounwind memory(read)
|
|
; TUNIT-LABEL: define {{[^@]+}}@ptr_uses
|
|
; TUNIT-SAME: (ptr nocapture nofree readonly [[PTR:%.*]]) #[[ATTR15]] {
|
|
; TUNIT-NEXT: [[CALL_PTR:%.*]] = call ptr @maybe_returned_ptr(ptr nofree readonly [[PTR]]) #[[ATTR15]]
|
|
; TUNIT-NEXT: [[CALL_VAL:%.*]] = call i8 @maybe_returned_val(ptr readonly [[CALL_PTR]]) #[[ATTR15]]
|
|
; TUNIT-NEXT: ret void
|
|
;
|
|
; CGSCC: Function Attrs: nosync nounwind memory(read)
|
|
; CGSCC-LABEL: define {{[^@]+}}@ptr_uses
|
|
; CGSCC-SAME: (ptr nocapture nofree readonly [[PTR:%.*]]) #[[ATTR16]] {
|
|
; CGSCC-NEXT: [[CALL_PTR:%.*]] = call ptr @maybe_returned_ptr(ptr nofree readonly [[PTR]]) #[[ATTR16]]
|
|
; CGSCC-NEXT: [[CALL_VAL:%.*]] = call i8 @maybe_returned_val(ptr readonly [[CALL_PTR]]) #[[ATTR16]]
|
|
; CGSCC-NEXT: ret void
|
|
;
|
|
%call_ptr = call ptr @maybe_returned_ptr(ptr %ptr)
|
|
%call_val = call i8 @maybe_returned_val(ptr %call_ptr)
|
|
call void @val_use(i8 %call_val)
|
|
ret void
|
|
}
|
|
|
|
define void @ptr_use_chain(ptr %ptr) {
|
|
; CHECK-LABEL: define {{[^@]+}}@ptr_use_chain
|
|
; CHECK-SAME: (ptr [[PTR:%.*]]) {
|
|
; CHECK-NEXT: call void @escape_i8(ptr [[PTR]])
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
call void @escape_i8(ptr %ptr)
|
|
ret void
|
|
}
|
|
|
|
@constant_mem = external dso_local constant i32, align 4
|
|
define i32 @read_only_constant_mem() {
|
|
; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
|
|
; CHECK-LABEL: define {{[^@]+}}@read_only_constant_mem
|
|
; CHECK-SAME: () #[[ATTR1]] {
|
|
; CHECK-NEXT: [[L:%.*]] = load i32, ptr @constant_mem, align 4
|
|
; CHECK-NEXT: ret i32 [[L]]
|
|
;
|
|
%l = load i32, ptr @constant_mem
|
|
ret i32 %l
|
|
}
|
|
;.
|
|
; TUNIT: attributes #[[ATTR0]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(write) }
|
|
; TUNIT: attributes #[[ATTR1]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) }
|
|
; TUNIT: attributes #[[ATTR2:[0-9]+]] = { memory(read) }
|
|
; TUNIT: attributes #[[ATTR3]] = { nosync memory(read) }
|
|
; TUNIT: attributes #[[ATTR4]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) }
|
|
; TUNIT: attributes #[[ATTR5:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(write) }
|
|
; TUNIT: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(read) }
|
|
; TUNIT: attributes #[[ATTR7]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(read) }
|
|
; TUNIT: attributes #[[ATTR8:[0-9]+]] = { nounwind memory(argmem: read) }
|
|
; TUNIT: attributes #[[ATTR9]] = { nosync nounwind memory(argmem: read) }
|
|
; TUNIT: attributes #[[ATTR10]] = { nounwind memory(argmem: readwrite) }
|
|
; TUNIT: attributes #[[ATTR11]] = { mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite) }
|
|
; TUNIT: attributes #[[ATTR12]] = { nosync memory(none) }
|
|
; TUNIT: attributes #[[ATTR13]] = { nosync }
|
|
; TUNIT: attributes #[[ATTR14:[0-9]+]] = { nounwind memory(read) }
|
|
; TUNIT: attributes #[[ATTR15]] = { nosync nounwind memory(read) }
|
|
; TUNIT: attributes #[[ATTR16]] = { nofree willreturn memory(write) }
|
|
; TUNIT: attributes #[[ATTR17]] = { nofree willreturn memory(read) }
|
|
; TUNIT: attributes #[[ATTR18]] = { nounwind }
|
|
; TUNIT: attributes #[[ATTR19]] = { nosync nounwind memory(write) }
|
|
;.
|
|
; CGSCC: attributes #[[ATTR0]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(write) }
|
|
; CGSCC: attributes #[[ATTR1]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) }
|
|
; CGSCC: attributes #[[ATTR2]] = { memory(read) }
|
|
; CGSCC: attributes #[[ATTR3]] = { nosync memory(read) }
|
|
; CGSCC: attributes #[[ATTR4]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) }
|
|
; CGSCC: attributes #[[ATTR5]] = { mustprogress nofree nosync nounwind willreturn memory(argmem: write) }
|
|
; CGSCC: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(write) }
|
|
; CGSCC: attributes #[[ATTR7:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(read) }
|
|
; CGSCC: attributes #[[ATTR8]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(read) }
|
|
; CGSCC: attributes #[[ATTR9:[0-9]+]] = { nounwind memory(argmem: read) }
|
|
; CGSCC: attributes #[[ATTR10]] = { nosync nounwind memory(argmem: read) }
|
|
; CGSCC: attributes #[[ATTR11]] = { nounwind memory(argmem: readwrite) }
|
|
; CGSCC: attributes #[[ATTR12]] = { mustprogress nofree norecurse nounwind willreturn memory(argmem: readwrite) }
|
|
; CGSCC: attributes #[[ATTR13]] = { nosync memory(none) }
|
|
; CGSCC: attributes #[[ATTR14]] = { nosync }
|
|
; CGSCC: attributes #[[ATTR15:[0-9]+]] = { nounwind memory(read) }
|
|
; CGSCC: attributes #[[ATTR16]] = { nosync nounwind memory(read) }
|
|
; CGSCC: attributes #[[ATTR17]] = { nofree nosync willreturn }
|
|
; CGSCC: attributes #[[ATTR18]] = { nofree willreturn memory(write) }
|
|
; CGSCC: attributes #[[ATTR19]] = { nofree willreturn memory(read) }
|
|
; CGSCC: attributes #[[ATTR20]] = { nounwind }
|
|
; CGSCC: attributes #[[ATTR21]] = { nounwind memory(write) }
|
|
;.
|