| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes |
| ; RUN: opt -attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM |
| ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM |
| ; RUN: opt -attributor-cgscc -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 |
| ; 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 |
| |
| |
| @x = global i32 0 |
| |
| declare void @test1_1(i8* %x1_1, i8* readonly %y1_1, ...) |
| |
| ; NOTE: readonly for %y1_2 would be OK here but not for the similar situation in test13. |
| ; |
| define void @test1_2(i8* %x1_2, i8* %y1_2, i8* %z1_2) { |
| ; CHECK-LABEL: define {{[^@]+}}@test1_2 |
| ; CHECK-SAME: (i8* [[X1_2:%.*]], i8* [[Y1_2:%.*]], i8* [[Z1_2:%.*]]) |
| ; CHECK-NEXT: call void (i8*, i8*, ...) @test1_1(i8* [[X1_2]], i8* readonly [[Y1_2]], i8* [[Z1_2]]) |
| ; CHECK-NEXT: store i32 0, i32* @x, align 4 |
| ; CHECK-NEXT: ret void |
| ; |
| call void (i8*, i8*, ...) @test1_1(i8* %x1_2, i8* %y1_2, i8* %z1_2) |
| store i32 0, i32* @x |
| ret void |
| } |
| |
| define i8* @test2(i8* %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@test2 |
| ; CHECK-SAME: (i8* nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) |
| ; CHECK-NEXT: store i32 0, i32* @x, align 4 |
| ; CHECK-NEXT: ret i8* [[P]] |
| ; |
| store i32 0, i32* @x |
| ret i8* %p |
| } |
| |
| define i1 @test3(i8* %p, i8* %q) { |
| ; CHECK-LABEL: define {{[^@]+}}@test3 |
| ; CHECK-SAME: (i8* nofree readnone [[P:%.*]], i8* nofree readnone [[Q:%.*]]) |
| ; CHECK-NEXT: [[A:%.*]] = icmp ult i8* [[P]], [[Q]] |
| ; CHECK-NEXT: ret i1 [[A]] |
| ; |
| %A = icmp ult i8* %p, %q |
| ret i1 %A |
| } |
| |
| declare void @test4_1(i8* nocapture) readonly |
| |
| define void @test4_2(i8* %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@test4_2 |
| ; CHECK-SAME: (i8* nocapture readonly [[P:%.*]]) |
| ; CHECK-NEXT: call void @test4_1(i8* nocapture readonly [[P]]) |
| ; CHECK-NEXT: ret void |
| ; |
| call void @test4_1(i8* %p) |
| ret void |
| } |
| |
| ; Missed optz'n: we could make %q readnone, but don't break test6! |
| define void @test5(i8** %p, i8* %q) { |
| ; CHECK-LABEL: define {{[^@]+}}@test5 |
| ; CHECK-SAME: (i8** nocapture nofree nonnull writeonly align 8 dereferenceable(8) [[P:%.*]], i8* nofree writeonly [[Q:%.*]]) |
| ; CHECK-NEXT: store i8* [[Q]], i8** [[P]], align 8 |
| ; CHECK-NEXT: ret void |
| ; |
| store i8* %q, i8** %p |
| ret void |
| } |
| |
| declare void @test6_1() |
| ; This is not a missed optz'n. |
| define void @test6_2(i8** %p, i8* %q) { |
| ; CHECK-LABEL: define {{[^@]+}}@test6_2 |
| ; CHECK-SAME: (i8** nocapture nonnull writeonly align 8 dereferenceable(8) [[P:%.*]], i8* [[Q:%.*]]) |
| ; CHECK-NEXT: store i8* [[Q]], i8** [[P]], align 8 |
| ; CHECK-NEXT: call void @test6_1() |
| ; CHECK-NEXT: ret void |
| ; |
| store i8* %q, i8** %p |
| call void @test6_1() |
| ret void |
| } |
| |
| ; inalloca parameters are always considered written |
| define void @test7_1(i32* inalloca %a) { |
| ; CHECK-LABEL: define {{[^@]+}}@test7_1 |
| ; CHECK-SAME: (i32* inalloca nocapture nofree writeonly [[A:%.*]]) |
| ; CHECK-NEXT: ret void |
| ; |
| ret void |
| } |
| |
| define i32* @test8_1(i32* %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@test8_1 |
| ; CHECK-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[P:%.*]]) |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: ret i32* [[P]] |
| ; |
| entry: |
| ret i32* %p |
| } |
| |
| define void @test8_2(i32* %p) { |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@test8_2 |
| ; IS__TUNIT____-SAME: (i32* nocapture nofree writeonly [[P:%.*]]) |
| ; IS__TUNIT____-NEXT: entry: |
| ; IS__TUNIT____-NEXT: [[CALL:%.*]] = call i32* @test8_1(i32* noalias nofree readnone "no-capture-maybe-returned" [[P]]) |
| ; IS__TUNIT____-NEXT: store i32 10, i32* [[CALL]], align 4 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@test8_2 |
| ; IS__CGSCC____-SAME: (i32* nofree writeonly [[P:%.*]]) |
| ; IS__CGSCC____-NEXT: entry: |
| ; IS__CGSCC____-NEXT: [[CALL:%.*]] = call align 4 i32* @test8_1(i32* noalias nofree readnone [[P]]) |
| ; IS__CGSCC____-NEXT: store i32 10, i32* [[CALL]], align 4 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| entry: |
| %call = call i32* @test8_1(i32* %p) |
| store i32 10, i32* %call, align 4 |
| ret void |
| } |
| |
| ; CHECK: declare void @llvm.masked.scatter |
| declare void @llvm.masked.scatter.v4i32.v4p0i32(<4 x i32>%val, <4 x i32*>, i32, <4 x i1>) |
| |
| ; CHECK-NOT: readnone |
| ; CHECK-NOT: readonly |
| define void @test9(<4 x i32*> %ptrs, <4 x i32>%val) { |
| ; CHECK-LABEL: define {{[^@]+}}@test9 |
| ; CHECK-SAME: (<4 x i32*> [[PTRS:%.*]], <4 x i32> [[VAL:%.*]]) |
| ; CHECK-NEXT: 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>) |
| ; CHECK-NEXT: ret void |
| ; |
| 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>) |
| ret void |
| } |
| |
| ; CHECK: declare <4 x i32> @llvm.masked.gather |
| declare <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*>, i32, <4 x i1>, <4 x i32>) |
| ; CHECK: readonly |
| define <4 x i32> @test10(<4 x i32*> %ptrs) { |
| ; CHECK-LABEL: define {{[^@]+}}@test10 |
| ; CHECK-SAME: (<4 x i32*> [[PTRS:%.*]]) |
| ; CHECK-NEXT: [[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) |
| ; CHECK-NEXT: ret <4 x i32> [[RES]] |
| ; |
| %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) |
| ret <4 x i32> %res |
| } |
| |
| ; CHECK: declare <4 x i32> @test11_1 |
| declare <4 x i32> @test11_1(<4 x i32*>) argmemonly nounwind readonly |
| ; CHECK: readonly |
| ; CHECK-NOT: readnone |
| define <4 x i32> @test11_2(<4 x i32*> %ptrs) { |
| ; CHECK-LABEL: define {{[^@]+}}@test11_2 |
| ; CHECK-SAME: (<4 x i32*> [[PTRS:%.*]]) |
| ; CHECK-NEXT: [[RES:%.*]] = call <4 x i32> @test11_1(<4 x i32*> [[PTRS]]) |
| ; CHECK-NEXT: ret <4 x i32> [[RES]] |
| ; |
| %res = call <4 x i32> @test11_1(<4 x i32*> %ptrs) |
| ret <4 x i32> %res |
| } |
| |
| declare <4 x i32> @test12_1(<4 x i32*>) argmemonly nounwind |
| ; CHECK-NOT: readnone |
| define <4 x i32> @test12_2(<4 x i32*> %ptrs) { |
| ; CHECK-LABEL: define {{[^@]+}}@test12_2 |
| ; CHECK-SAME: (<4 x i32*> [[PTRS:%.*]]) |
| ; CHECK-NEXT: [[RES:%.*]] = call <4 x i32> @test12_1(<4 x i32*> [[PTRS]]) |
| ; CHECK-NEXT: ret <4 x i32> [[RES]] |
| ; |
| %res = call <4 x i32> @test12_1(<4 x i32*> %ptrs) |
| ret <4 x i32> %res |
| } |
| |
| define i32 @volatile_load(i32* %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@volatile_load |
| ; CHECK-SAME: (i32* nofree align 4 [[P:%.*]]) |
| ; CHECK-NEXT: [[LOAD:%.*]] = load volatile i32, i32* [[P]], align 4 |
| ; CHECK-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** 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** 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 %written) readonly { |
| ; CHECK-LABEL: define {{[^@]+}}@byval_not_readonly_1 |
| ; CHECK-SAME: (i8* noalias nonnull byval dereferenceable(1) [[WRITTEN:%.*]]) |
| ; 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 %written) readonly { |
| ; CHECK-LABEL: define {{[^@]+}}@byval_not_readonly_2 |
| ; CHECK-SAME: (i8* noalias nocapture nofree nonnull writeonly byval dereferenceable(1) [[WRITTEN:%.*]]) |
| ; CHECK-NEXT: store i8 0, i8* [[WRITTEN]], align 1 |
| ; CHECK-NEXT: ret void |
| ; |
| store i8 0, i8* %written |
| ret void |
| } |
| |
| define void @byval_not_readnone_1(i8* byval %written) readnone { |
| ; CHECK-LABEL: define {{[^@]+}}@byval_not_readnone_1 |
| ; CHECK-SAME: (i8* noalias nonnull byval dereferenceable(1) [[WRITTEN:%.*]]) |
| ; 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 %written) readnone { |
| ; CHECK-LABEL: define {{[^@]+}}@byval_not_readnone_2 |
| ; CHECK-SAME: (i8* noalias nocapture nofree nonnull writeonly byval dereferenceable(1) [[WRITTEN:%.*]]) |
| ; CHECK-NEXT: store i8 0, i8* [[WRITTEN]], align 1 |
| ; CHECK-NEXT: ret void |
| ; |
| store i8 0, i8* %written |
| ret void |
| } |
| |
| define void @byval_no_fnarg(i8* byval %written) { |
| ; CHECK-LABEL: define {{[^@]+}}@byval_no_fnarg |
| ; CHECK-SAME: (i8* noalias nocapture nofree nonnull writeonly byval dereferenceable(1) [[WRITTEN:%.*]]) |
| ; CHECK-NEXT: store i8 0, i8* [[WRITTEN]], align 1 |
| ; CHECK-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]]) |
| ; IS__TUNIT____-NEXT: call void @byval_not_readnone_1(i8* noalias nocapture readnone [[READ_ONLY]]) |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@testbyval |
| ; IS__CGSCC____-SAME: (i8* nocapture nonnull readonly dereferenceable(1) [[READ_ONLY:%.*]]) |
| ; IS__CGSCC____-NEXT: call void @byval_not_readonly_1(i8* noalias nocapture nonnull readonly dereferenceable(1) [[READ_ONLY]]) |
| ; 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-LABEL: define {{[^@]+}}@ptr_uses |
| ; CHECK-SAME: (i8* nocapture readonly [[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 |
| } |
