472 lines
21 KiB
LLVM
472 lines
21 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
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; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
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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=2 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
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; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
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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,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
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@x = global i32 0
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declare void @test1_1(i8* %x1_1, i8* 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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define void @test1_2(i8* %x1_2, i8* %y1_2, i8* %z1_2) {
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; CHECK-LABEL: define {{[^@]+}}@test1_2
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; CHECK-SAME: (i8* [[X1_2:%.*]], i8* [[Y1_2:%.*]], i8* [[Z1_2:%.*]]) {
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; CHECK-NEXT: call void (i8*, i8*, ...) @test1_1(i8* [[X1_2]], i8* readonly [[Y1_2]], i8* [[Z1_2]])
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; CHECK-NEXT: store i32 0, i32* @x, align 4
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; CHECK-NEXT: ret void
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;
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call void (i8*, i8*, ...) @test1_1(i8* %x1_2, i8* %y1_2, i8* %z1_2)
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store i32 0, i32* @x
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ret void
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}
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define i8* @test2(i8* %p) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test2
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; IS__TUNIT____-SAME: (i8* nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) [[ATTR0:#.*]] {
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; IS__TUNIT____-NEXT: store i32 0, i32* @x, align 4
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; IS__TUNIT____-NEXT: ret i8* [[P]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test2
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; IS__CGSCC____-SAME: (i8* nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) [[ATTR0:#.*]] {
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; IS__CGSCC____-NEXT: store i32 0, i32* @x, align 4
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; IS__CGSCC____-NEXT: ret i8* [[P]]
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;
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store i32 0, i32* @x
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ret i8* %p
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}
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define i1 @test3(i8* %p, i8* %q) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test3
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; IS__TUNIT____-SAME: (i8* nofree readnone [[P:%.*]], i8* nofree readnone [[Q:%.*]]) [[ATTR1:#.*]] {
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; IS__TUNIT____-NEXT: [[A:%.*]] = icmp ult i8* [[P]], [[Q]]
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; IS__TUNIT____-NEXT: ret i1 [[A]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test3
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; IS__CGSCC____-SAME: (i8* nofree readnone [[P:%.*]], i8* nofree readnone [[Q:%.*]]) [[ATTR1:#.*]] {
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; IS__CGSCC____-NEXT: [[A:%.*]] = icmp ult i8* [[P]], [[Q]]
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; IS__CGSCC____-NEXT: ret i1 [[A]]
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;
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%A = icmp ult i8* %p, %q
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ret i1 %A
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}
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declare void @test4_1(i8* nocapture) readonly
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define void @test4_2(i8* %p) {
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; CHECK: Function Attrs: readonly
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; CHECK-LABEL: define {{[^@]+}}@test4_2
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; CHECK-SAME: (i8* nocapture readonly [[P:%.*]]) [[ATTR2:#.*]] {
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; CHECK-NEXT: call void @test4_1(i8* nocapture readonly [[P]]) [[ATTR2]]
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; CHECK-NEXT: ret void
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;
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call void @test4_1(i8* %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(i8** %p, i8* %q) {
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; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test5
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; IS__TUNIT____-SAME: (i8** nocapture nofree nonnull writeonly align 8 dereferenceable(8) [[P:%.*]], i8* nofree writeonly [[Q:%.*]]) [[ATTR3:#.*]] {
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; IS__TUNIT____-NEXT: store i8* [[Q]], i8** [[P]], align 8
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; IS__TUNIT____-NEXT: ret void
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;
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; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test5
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; IS__CGSCC____-SAME: (i8** nocapture nofree nonnull writeonly align 8 dereferenceable(8) [[P:%.*]], i8* nofree writeonly [[Q:%.*]]) [[ATTR3:#.*]] {
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; IS__CGSCC____-NEXT: store i8* [[Q]], i8** [[P]], align 8
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; IS__CGSCC____-NEXT: ret void
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;
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store i8* %q, i8** %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(i8** %p, i8* %q) {
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; CHECK-LABEL: define {{[^@]+}}@test6_2
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; CHECK-SAME: (i8** nocapture nonnull writeonly align 8 dereferenceable(8) [[P:%.*]], i8* [[Q:%.*]]) {
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; CHECK-NEXT: store i8* [[Q]], i8** [[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 i8* %q, i8** %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(i32* inalloca %a) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test7_1
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; IS__TUNIT____-SAME: (i32* inalloca nocapture nofree nonnull writeonly dereferenceable(4) [[A:%.*]]) [[ATTR1]] {
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; IS__TUNIT____-NEXT: ret void
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test7_1
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; IS__CGSCC____-SAME: (i32* inalloca nocapture nofree nonnull writeonly dereferenceable(4) [[A:%.*]]) [[ATTR1]] {
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; IS__CGSCC____-NEXT: ret void
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;
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ret void
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}
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define i32* @test8_1(i32* %p) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test8_1
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; IS__TUNIT____-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) [[ATTR1]] {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: ret i32* [[P]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test8_1
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; IS__CGSCC____-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) [[ATTR1]] {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: ret i32* [[P]]
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;
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entry:
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ret i32* %p
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}
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define void @test8_2(i32* %p) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test8_2
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; IS__TUNIT____-SAME: (i32* nocapture nofree writeonly [[P:%.*]]) [[ATTR0]] {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: [[CALL:%.*]] = call i32* @test8_1(i32* noalias nofree readnone "no-capture-maybe-returned" [[P]]) [[ATTR1]]
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; IS__TUNIT____-NEXT: store i32 10, i32* [[CALL]], align 4
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; IS__TUNIT____-NEXT: ret void
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;
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; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test8_2
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; IS__CGSCC____-SAME: (i32* nocapture nofree writeonly [[P:%.*]]) [[ATTR3]] {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: [[CALL:%.*]] = call align 4 i32* @test8_1(i32* noalias nofree readnone "no-capture-maybe-returned" [[P]]) [[ATTR11:#.*]]
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; IS__CGSCC____-NEXT: store i32 10, i32* [[CALL]], align 4
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; IS__CGSCC____-NEXT: ret void
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;
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entry:
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%call = call i32* @test8_1(i32* %p)
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store i32 10, i32* %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.v4p0i32(<4 x i32>%val, <4 x i32*>, 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 i32*> %ptrs, <4 x i32>%val) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test9
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; IS__TUNIT____-SAME: (<4 x i32*> [[PTRS:%.*]], <4 x i32> [[VAL:%.*]]) [[ATTR0]] {
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; IS__TUNIT____-NEXT: call void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32> [[VAL]], <4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>) [[ATTR10:#.*]]
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; IS__TUNIT____-NEXT: ret void
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;
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; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test9
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; IS__CGSCC____-SAME: (<4 x i32*> [[PTRS:%.*]], <4 x i32> [[VAL:%.*]]) [[ATTR4:#.*]] {
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; IS__CGSCC____-NEXT: call void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32> [[VAL]], <4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>) [[ATTR12:#.*]]
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; IS__CGSCC____-NEXT: ret void
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;
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call void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32>%val, <4 x i32*> %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.v4p0i32(<4 x i32*>, i32, <4 x i1>, <4 x i32>)
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define <4 x i32> @test10(<4 x i32*> %ptrs) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readonly willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test10
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; IS__TUNIT____-SAME: (<4 x i32*> [[PTRS:%.*]]) [[ATTR4:#.*]] {
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; IS__TUNIT____-NEXT: [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef) [[ATTR11:#.*]]
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; IS__TUNIT____-NEXT: ret <4 x i32> [[RES]]
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;
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; IS__CGSCC____: Function Attrs: nofree nosync nounwind readonly willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test10
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; IS__CGSCC____-SAME: (<4 x i32*> [[PTRS:%.*]]) [[ATTR5:#.*]] {
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; IS__CGSCC____-NEXT: [[RES:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> [[PTRS]], i32 noundef 4, <4 x i1> noundef <i1 true, i1 false, i1 true, i1 false>, <4 x i32> undef) [[ATTR13:#.*]]
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; IS__CGSCC____-NEXT: ret <4 x i32> [[RES]]
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;
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%res = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> %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 i32*>) argmemonly nounwind readonly
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define <4 x i32> @test11_2(<4 x i32*> %ptrs) {
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; CHECK: Function Attrs: argmemonly nounwind readonly
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; CHECK-LABEL: define {{[^@]+}}@test11_2
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; CHECK-SAME: (<4 x i32*> [[PTRS:%.*]]) [[ATTR6:#.*]] {
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; CHECK-NEXT: [[RES:%.*]] = call <4 x i32> @test11_1(<4 x i32*> [[PTRS]]) [[ATTR9:#.*]]
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; CHECK-NEXT: ret <4 x i32> [[RES]]
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;
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%res = call <4 x i32> @test11_1(<4 x i32*> %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 i32*>) argmemonly nounwind
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; CHECK-NOT: readnone
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define <4 x i32> @test12_2(<4 x i32*> %ptrs) {
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; IS__TUNIT____: Function Attrs: argmemonly nounwind
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test12_2
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; IS__TUNIT____-SAME: (<4 x i32*> [[PTRS:%.*]]) [[ATTR6:#.*]] {
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; IS__TUNIT____-NEXT: [[RES:%.*]] = call <4 x i32> @test12_1(<4 x i32*> [[PTRS]]) [[ATTR12:#.*]]
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; IS__TUNIT____-NEXT: ret <4 x i32> [[RES]]
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;
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; IS__CGSCC____: Function Attrs: argmemonly nounwind
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test12_2
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; IS__CGSCC____-SAME: (<4 x i32*> [[PTRS:%.*]]) [[ATTR7:#.*]] {
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; IS__CGSCC____-NEXT: [[RES:%.*]] = call <4 x i32> @test12_1(<4 x i32*> [[PTRS]]) [[ATTR14:#.*]]
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; IS__CGSCC____-NEXT: ret <4 x i32> [[RES]]
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;
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%res = call <4 x i32> @test12_1(<4 x i32*> %ptrs)
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ret <4 x i32> %res
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}
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define i32 @volatile_load(i32* %p) {
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; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@volatile_load
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; IS__TUNIT____-SAME: (i32* nofree align 4 [[P:%.*]]) [[ATTR7:#.*]] {
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; IS__TUNIT____-NEXT: [[LOAD:%.*]] = load volatile i32, i32* [[P]], align 4
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; IS__TUNIT____-NEXT: ret i32 [[LOAD]]
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;
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; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@volatile_load
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; IS__CGSCC____-SAME: (i32* nofree align 4 [[P:%.*]]) [[ATTR8:#.*]] {
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; IS__CGSCC____-NEXT: [[LOAD:%.*]] = load volatile i32, i32* [[P]], align 4
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; IS__CGSCC____-NEXT: ret i32 [[LOAD]]
|
||
|
|
;
|
||
|
|
%load = load volatile i32, i32* %p
|
||
|
|
ret i32 %load
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @escape_readnone_ptr(i8** %addr, i8* readnone %ptr)
|
||
|
|
declare void @escape_readonly_ptr(i8** %addr, i8* readonly %ptr)
|
||
|
|
|
||
|
|
; The argument pointer %escaped_then_written cannot be marked readnone/only even
|
||
|
|
; though the only direct use, in @escape_readnone_ptr/@escape_readonly_ptr,
|
||
|
|
; is marked as readnone/only. However, the functions can write the pointer into
|
||
|
|
; %addr, causing the store to write to %escaped_then_written.
|
||
|
|
;
|
||
|
|
define void @unsound_readnone(i8* %ignored, i8* %escaped_then_written) {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@unsound_readnone
|
||
|
|
; CHECK-SAME: (i8* nocapture nofree readnone [[IGNORED:%.*]], i8* [[ESCAPED_THEN_WRITTEN:%.*]]) {
|
||
|
|
; CHECK-NEXT: [[ADDR:%.*]] = alloca i8*, align 8
|
||
|
|
; CHECK-NEXT: call void @escape_readnone_ptr(i8** noundef nonnull align 8 dereferenceable(8) [[ADDR]], i8* noalias readnone [[ESCAPED_THEN_WRITTEN]])
|
||
|
|
; CHECK-NEXT: [[ADDR_LD:%.*]] = load i8*, i8** [[ADDR]], align 8
|
||
|
|
; CHECK-NEXT: store i8 0, i8* [[ADDR_LD]], align 1
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
%addr = alloca i8*
|
||
|
|
call void @escape_readnone_ptr(i8** %addr, i8* %escaped_then_written)
|
||
|
|
%addr.ld = load i8*, i8** %addr
|
||
|
|
store i8 0, i8* %addr.ld
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @unsound_readonly(i8* %ignored, i8* %escaped_then_written) {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@unsound_readonly
|
||
|
|
; CHECK-SAME: (i8* nocapture nofree readnone [[IGNORED:%.*]], i8* [[ESCAPED_THEN_WRITTEN:%.*]]) {
|
||
|
|
; CHECK-NEXT: [[ADDR:%.*]] = alloca i8*, align 8
|
||
|
|
; CHECK-NEXT: call void @escape_readonly_ptr(i8** noundef nonnull align 8 dereferenceable(8) [[ADDR]], i8* readonly [[ESCAPED_THEN_WRITTEN]])
|
||
|
|
; CHECK-NEXT: [[ADDR_LD:%.*]] = load i8*, i8** [[ADDR]], align 8
|
||
|
|
; CHECK-NEXT: store i8 0, i8* [[ADDR_LD]], align 1
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
%addr = alloca i8*
|
||
|
|
call void @escape_readonly_ptr(i8** %addr, i8* %escaped_then_written)
|
||
|
|
%addr.ld = load i8*, i8** %addr
|
||
|
|
store i8 0, i8* %addr.ld
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Byval but not readonly/none tests
|
||
|
|
;
|
||
|
|
;{
|
||
|
|
declare void @escape_i8(i8* %ptr)
|
||
|
|
|
||
|
|
define void @byval_not_readonly_1(i8* byval(i8) %written) readonly {
|
||
|
|
; CHECK: Function Attrs: readonly
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@byval_not_readonly_1
|
||
|
|
; CHECK-SAME: (i8* noalias nonnull byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) [[ATTR2]] {
|
||
|
|
; CHECK-NEXT: call void @escape_i8(i8* nonnull dereferenceable(1) [[WRITTEN]])
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call void @escape_i8(i8* %written)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @byval_not_readonly_2(i8* byval(i8) %written) readonly {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@byval_not_readonly_2
|
||
|
|
; IS__TUNIT____-SAME: (i8* noalias nocapture nofree nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) [[ATTR1]] {
|
||
|
|
; IS__TUNIT____-NEXT: store i8 0, i8* [[WRITTEN]], align 1
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@byval_not_readonly_2
|
||
|
|
; IS__CGSCC____-SAME: (i8* noalias nocapture nofree nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) [[ATTR1]] {
|
||
|
|
; IS__CGSCC____-NEXT: store i8 0, i8* [[WRITTEN]], align 1
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
store i8 0, i8* %written
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @byval_not_readnone_1(i8* byval(i8) %written) readnone {
|
||
|
|
; CHECK: Function Attrs: readnone
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@byval_not_readnone_1
|
||
|
|
; CHECK-SAME: (i8* noalias nonnull byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) [[ATTR8:#.*]] {
|
||
|
|
; CHECK-NEXT: call void @escape_i8(i8* nonnull dereferenceable(1) [[WRITTEN]])
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call void @escape_i8(i8* %written)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @byval_not_readnone_2(i8* byval(i8) %written) readnone {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@byval_not_readnone_2
|
||
|
|
; IS__TUNIT____-SAME: (i8* noalias nocapture nofree nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) [[ATTR1]] {
|
||
|
|
; IS__TUNIT____-NEXT: store i8 0, i8* [[WRITTEN]], align 1
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@byval_not_readnone_2
|
||
|
|
; IS__CGSCC____-SAME: (i8* noalias nocapture nofree nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) [[ATTR1]] {
|
||
|
|
; IS__CGSCC____-NEXT: store i8 0, i8* [[WRITTEN]], align 1
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
store i8 0, i8* %written
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @byval_no_fnarg(i8* byval(i8) %written) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@byval_no_fnarg
|
||
|
|
; IS__TUNIT____-SAME: (i8* noalias nocapture nofree nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) [[ATTR1]] {
|
||
|
|
; IS__TUNIT____-NEXT: store i8 0, i8* [[WRITTEN]], align 1
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@byval_no_fnarg
|
||
|
|
; IS__CGSCC____-SAME: (i8* noalias nocapture nofree nonnull writeonly byval(i8) dereferenceable(1) [[WRITTEN:%.*]]) [[ATTR1]] {
|
||
|
|
; IS__CGSCC____-NEXT: store i8 0, i8* [[WRITTEN]], align 1
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
store i8 0, i8* %written
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @testbyval(i8* %read_only) {
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@testbyval
|
||
|
|
; IS__TUNIT____-SAME: (i8* nocapture readonly [[READ_ONLY:%.*]]) {
|
||
|
|
; IS__TUNIT____-NEXT: call void @byval_not_readonly_1(i8* nocapture readonly [[READ_ONLY]]) [[ATTR2:#.*]]
|
||
|
|
; IS__TUNIT____-NEXT: call void @byval_not_readnone_1(i8* noalias nocapture readnone [[READ_ONLY]])
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: readonly
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@testbyval
|
||
|
|
; IS__CGSCC____-SAME: (i8* nocapture nonnull readonly dereferenceable(1) [[READ_ONLY:%.*]]) [[ATTR2:#.*]] {
|
||
|
|
; IS__CGSCC____-NEXT: call void @byval_not_readonly_1(i8* noalias nocapture nonnull readonly dereferenceable(1) [[READ_ONLY]]) [[ATTR2]]
|
||
|
|
; IS__CGSCC____-NEXT: call void @byval_not_readnone_1(i8* noalias nocapture nonnull readnone dereferenceable(1) [[READ_ONLY]])
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
call void @byval_not_readonly_1(i8* %read_only)
|
||
|
|
call void @byval_not_readonly_2(i8* %read_only)
|
||
|
|
call void @byval_not_readnone_1(i8* %read_only)
|
||
|
|
call void @byval_not_readnone_2(i8* %read_only)
|
||
|
|
call void @byval_no_fnarg(i8* %read_only)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
;}
|
||
|
|
|
||
|
|
declare i8* @maybe_returned_ptr(i8* readonly %ptr) readonly nounwind
|
||
|
|
declare i8 @maybe_returned_val(i8* %ptr) readonly nounwind
|
||
|
|
declare void @val_use(i8 %ptr) readonly nounwind
|
||
|
|
|
||
|
|
define void @ptr_uses(i8* %ptr) {
|
||
|
|
; CHECK: Function Attrs: nounwind readonly
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@ptr_uses
|
||
|
|
; CHECK-SAME: (i8* nocapture readonly [[PTR:%.*]]) [[ATTR9:#.*]] {
|
||
|
|
; CHECK-NEXT: [[CALL_PTR:%.*]] = call i8* @maybe_returned_ptr(i8* readonly [[PTR]])
|
||
|
|
; CHECK-NEXT: [[CALL_VAL:%.*]] = call i8 @maybe_returned_val(i8* readonly [[CALL_PTR]])
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
%call_ptr = call i8* @maybe_returned_ptr(i8* %ptr)
|
||
|
|
%call_val = call i8 @maybe_returned_val(i8* %call_ptr)
|
||
|
|
call void @val_use(i8 %call_val)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @ptr_use_chain(i8* %ptr) {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@ptr_use_chain
|
||
|
|
; CHECK-SAME: (i8* [[PTR:%.*]]) {
|
||
|
|
; CHECK-NEXT: [[BC0:%.*]] = bitcast i8* [[PTR]] to i32*
|
||
|
|
; CHECK-NEXT: [[BC1:%.*]] = bitcast i32* [[BC0]] to i8*
|
||
|
|
; CHECK-NEXT: [[BC2:%.*]] = bitcast i8* [[BC1]] to i32*
|
||
|
|
; CHECK-NEXT: [[BC3:%.*]] = bitcast i32* [[BC2]] to i8*
|
||
|
|
; CHECK-NEXT: [[BC4:%.*]] = bitcast i8* [[BC3]] to i32*
|
||
|
|
; CHECK-NEXT: [[BC5:%.*]] = bitcast i32* [[BC4]] to i8*
|
||
|
|
; CHECK-NEXT: [[BC6:%.*]] = bitcast i8* [[BC5]] to i32*
|
||
|
|
; CHECK-NEXT: [[BC7:%.*]] = bitcast i32* [[BC6]] to i8*
|
||
|
|
; CHECK-NEXT: [[BC8:%.*]] = bitcast i8* [[BC7]] to i32*
|
||
|
|
; CHECK-NEXT: [[BC9:%.*]] = bitcast i32* [[BC8]] to i8*
|
||
|
|
; CHECK-NEXT: [[ABC2:%.*]] = bitcast i8* [[BC9]] to i32*
|
||
|
|
; CHECK-NEXT: [[ABC3:%.*]] = bitcast i32* [[ABC2]] to i8*
|
||
|
|
; CHECK-NEXT: [[ABC4:%.*]] = bitcast i8* [[ABC3]] to i32*
|
||
|
|
; CHECK-NEXT: [[ABC5:%.*]] = bitcast i32* [[ABC4]] to i8*
|
||
|
|
; CHECK-NEXT: [[ABC6:%.*]] = bitcast i8* [[ABC5]] to i32*
|
||
|
|
; CHECK-NEXT: [[ABC7:%.*]] = bitcast i32* [[ABC6]] to i8*
|
||
|
|
; CHECK-NEXT: [[ABC8:%.*]] = bitcast i8* [[ABC7]] to i32*
|
||
|
|
; CHECK-NEXT: [[ABC9:%.*]] = bitcast i32* [[ABC8]] to i8*
|
||
|
|
; CHECK-NEXT: call void @escape_i8(i8* [[ABC9]])
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
%bc0 = bitcast i8* %ptr to i32*
|
||
|
|
%bc1 = bitcast i32* %bc0 to i8*
|
||
|
|
%bc2 = bitcast i8* %bc1 to i32*
|
||
|
|
%bc3 = bitcast i32* %bc2 to i8*
|
||
|
|
%bc4 = bitcast i8* %bc3 to i32*
|
||
|
|
%bc5 = bitcast i32* %bc4 to i8*
|
||
|
|
%bc6 = bitcast i8* %bc5 to i32*
|
||
|
|
%bc7 = bitcast i32* %bc6 to i8*
|
||
|
|
%bc8 = bitcast i8* %bc7 to i32*
|
||
|
|
%bc9 = bitcast i32* %bc8 to i8*
|
||
|
|
%abc2 = bitcast i8* %bc9 to i32*
|
||
|
|
%abc3 = bitcast i32* %abc2 to i8*
|
||
|
|
%abc4 = bitcast i8* %abc3 to i32*
|
||
|
|
%abc5 = bitcast i32* %abc4 to i8*
|
||
|
|
%abc6 = bitcast i8* %abc5 to i32*
|
||
|
|
%abc7 = bitcast i32* %abc6 to i8*
|
||
|
|
%abc8 = bitcast i8* %abc7 to i32*
|
||
|
|
%abc9 = bitcast i32* %abc8 to i8*
|
||
|
|
call void @escape_i8(i8* %abc9)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
@constant_mem = external dso_local constant i32, align 4
|
||
|
|
define i32 @read_only_constant_mem() {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@read_only_constant_mem
|
||
|
|
; IS__TUNIT____-SAME: () [[ATTR1]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[L:%.*]] = load i32, i32* @constant_mem, align 4
|
||
|
|
; IS__TUNIT____-NEXT: ret i32 [[L]]
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@read_only_constant_mem
|
||
|
|
; IS__CGSCC____-SAME: () [[ATTR1]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[L:%.*]] = load i32, i32* @constant_mem, align 4
|
||
|
|
; IS__CGSCC____-NEXT: ret i32 [[L]]
|
||
|
|
;
|
||
|
|
%l = load i32, i32* @constant_mem
|
||
|
|
ret i32 %l
|
||
|
|
}
|