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
241 lines
12 KiB
LLVM
241 lines
12 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals --include-generated-funcs
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; RUN: opt -S -passes='openmp-opt' < %s | FileCheck %s
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; RUN: opt -passes=openmp-opt -pass-remarks=openmp-opt -disable-output < %s 2>&1 | FileCheck %s -check-prefix=CHECK-REMARKS
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; RUN: opt -passes=openmp-opt -pass-remarks=openmp-opt -pass-remarks-missed=openmp-opt -disable-output -openmp-opt-shared-limit=4 < %s 2>&1 | FileCheck %s -check-prefix=CHECK-LIMIT
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target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
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target triple = "nvptx64"
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; UTC_ARGS: --disable
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; CHECK-REMARKS: remark: replace_globalization.c:5:7: Replaced globalized variable with 16 bytes of shared memory
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; CHECK-REMARKS: remark: replace_globalization.c:5:14: Replaced globalized variable with 4 bytes of shared memory
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; CHECK-REMARKS-NOT: 6 bytes
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; CHECK-LIMIT: remark: replace_globalization.c:5:14: Replaced globalized variable with 4 bytes of shared memory
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; CHECK-LIMIT: remark: replace_globalization.c:5:7: Found thread data sharing on the GPU. Expect degraded performance due to data globalization
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; UTC_ARGS: --enable
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%struct.ident_t = type { i32, i32, i32, i32, i8* }
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@S = external local_unnamed_addr global i8*
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@0 = private unnamed_addr constant [113 x i8] c";llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c;__omp_offloading_2a_d80d3d_test_fallback_l11;11;1;;\00", align 1
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@1 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([113 x i8], [113 x i8]* @0, i32 0, i32 0) }, align 8
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@foo_exec_mode = weak constant i8 1
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@bar_exec_mode = weak constant i8 1
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@baz_spmd_exec_mode = weak constant i8 2
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define dso_local void @foo() "kernel" {
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entry:
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%c = call i32 @__kmpc_target_init(%struct.ident_t* @1, i8 1, i1 true, i1 true)
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%x = call align 4 i8* @__kmpc_alloc_shared(i64 4)
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call void @unknown_no_openmp()
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%x_on_stack = bitcast i8* %x to i32*
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%0 = bitcast i32* %x_on_stack to i8*
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call void @use(i8* %0)
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call void @__kmpc_free_shared(i8* %x, i64 4)
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call void @__kmpc_target_deinit(%struct.ident_t* @1, i8 1, i1 true)
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ret void
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}
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define void @bar() "kernel" {
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%c = call i32 @__kmpc_target_init(%struct.ident_t* @1, i8 1, i1 true, i1 true)
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call void @unknown_no_openmp()
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%cmp = icmp eq i32 %c, -1
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br i1 %cmp, label %master1, label %exit
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master1:
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%x = call align 4 i8* @__kmpc_alloc_shared(i64 16), !dbg !11
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%x_on_stack = bitcast i8* %x to [4 x i32]*
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%a0 = bitcast [4 x i32]* %x_on_stack to i8*
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call void @use(i8* %a0)
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call void @__kmpc_free_shared(i8* %x, i64 16)
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br label %next
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next:
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call void @unknown_no_openmp()
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%b0 = icmp eq i32 %c, -1
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br i1 %b0, label %master2, label %exit
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master2:
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%y = call align 4 i8* @__kmpc_alloc_shared(i64 4), !dbg !12
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%y_on_stack = bitcast i8* %y to [4 x i32]*
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%b1 = bitcast [4 x i32]* %y_on_stack to i8*
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call void @use(i8* %b1)
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call void @__kmpc_free_shared(i8* %y, i64 4)
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br label %exit
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exit:
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call void @__kmpc_target_deinit(%struct.ident_t* @1, i8 1, i1 true)
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ret void
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}
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define void @baz_spmd() "kernel" {
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%c = call i32 @__kmpc_target_init(%struct.ident_t* @1, i8 2, i1 true, i1 true)
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call void @unknown_no_openmp()
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%c0 = icmp eq i32 %c, -1
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br i1 %c0, label %master3, label %exit
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master3:
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%z = call align 4 i8* @__kmpc_alloc_shared(i64 24), !dbg !12
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%z_on_stack = bitcast i8* %z to [6 x i32]*
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%c1 = bitcast [6 x i32]* %z_on_stack to i8*
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call void @use(i8* %c1)
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call void @__kmpc_free_shared(i8* %z, i64 24)
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br label %exit
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exit:
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call void @__kmpc_target_deinit(%struct.ident_t* @1, i8 2, i1 true)
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ret void
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}
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define void @use(i8* %x) {
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entry:
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store i8* %x, i8** @S
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ret void
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}
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@offset =global i32 undef
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@stack = internal addrspace(3) global [1024 x i8] undef
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define private i8* @__kmpc_alloc_shared(i64) {
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%bc = bitcast [1024 x i8] addrspace(3) * @stack to i8 addrspace(3) *
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%ac = addrspacecast i8 addrspace(3) * %bc to i8*
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%l = load i32, i32* @offset
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%gep = getelementptr i8, i8* %ac, i32 %l
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ret i8* %gep
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}
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declare void @__kmpc_free_shared(i8*, i64)
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declare i32 @llvm.nvvm.read.ptx.sreg.tid.x()
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declare i32 @llvm.nvvm.read.ptx.sreg.ntid.x()
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declare i32 @llvm.nvvm.read.ptx.sreg.warpsize()
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; Make it a weak definition so we will apply custom state machine rewriting but can't use the body in the reasoning.
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define weak i32 @__kmpc_target_init(%struct.ident_t*, i8, i1, i1) {
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ret i32 0
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}
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declare void @__kmpc_target_deinit(%struct.ident_t*, i8, i1)
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declare void @unknown_no_openmp() "llvm.assume"="omp_no_openmp"
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!nvvm.annotations = !{!7, !8, !13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "replace_globalization.c", directory: "/tmp/replace_globalization.c")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 7, !"openmp", i32 50}
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!6 = !{i32 7, !"openmp-device", i32 50}
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!7 = !{void ()* @foo, !"kernel", i32 1}
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!8 = !{void ()* @bar, !"kernel", i32 1}
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!13 = !{void ()* @baz_spmd, !"kernel", i32 1}
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!9 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 1, type: !10, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!10 = !DISubroutineType(types: !2)
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!11 = !DILocation(line: 5, column: 7, scope: !9)
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!12 = !DILocation(line: 5, column: 14, scope: !9)
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;.
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; CHECK: @[[S:[a-zA-Z0-9_$"\\.-]+]] = external local_unnamed_addr global i8*
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; CHECK: @[[GLOB0:[0-9]+]] = private unnamed_addr constant [113 x i8] c"
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; CHECK: @[[GLOB1:[0-9]+]] = private unnamed_addr constant [[STRUCT_IDENT_T:%.*]] { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([113 x i8], [113 x i8]* @[[GLOB0]], i32 0, i32 0) }, align 8
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; CHECK: @[[FOO_EXEC_MODE:[a-zA-Z0-9_$"\\.-]+]] = weak constant i8 1
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; CHECK: @[[BAR_EXEC_MODE:[a-zA-Z0-9_$"\\.-]+]] = weak constant i8 1
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; CHECK: @[[BAZ_SPMD_EXEC_MODE:[a-zA-Z0-9_$"\\.-]+]] = weak constant i8 2
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; CHECK: @[[OFFSET:[a-zA-Z0-9_$"\\.-]+]] = global i32 undef
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; CHECK: @[[STACK:[a-zA-Z0-9_$"\\.-]+]] = internal addrspace(3) global [1024 x i8] undef
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; CHECK: @[[X_SHARED:[a-zA-Z0-9_$"\\.-]+]] = internal addrspace(3) global [16 x i8] undef, align 4
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; CHECK: @[[Y_SHARED:[a-zA-Z0-9_$"\\.-]+]] = internal addrspace(3) global [4 x i8] undef, align 4
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;.
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; CHECK-LABEL: define {{[^@]+}}@foo
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; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* @[[GLOB1]], i8 1, i1 false, i1 true)
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; CHECK-NEXT: [[X:%.*]] = call align 4 i8* @__kmpc_alloc_shared(i64 4) #[[ATTR6:[0-9]+]]
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; CHECK-NEXT: call void @unknown_no_openmp()
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; CHECK-NEXT: call void @use.internalized(i8* nofree [[X]]) #[[ATTR6]]
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; CHECK-NEXT: call void @__kmpc_free_shared(i8* [[X]], i64 4) #[[ATTR6]]
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; CHECK-NEXT: call void @__kmpc_target_deinit(%struct.ident_t* @[[GLOB1]], i8 1, i1 true)
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; CHECK-NEXT: ret void
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;
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;
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; CHECK-LABEL: define {{[^@]+}}@bar
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; CHECK-SAME: () #[[ATTR0]] {
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; CHECK-NEXT: [[C:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* @[[GLOB1]], i8 1, i1 false, i1 true)
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; CHECK-NEXT: call void @unknown_no_openmp()
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[C]], -1
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; CHECK-NEXT: br i1 [[CMP]], label [[MASTER1:%.*]], label [[EXIT:%.*]]
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; CHECK: master1:
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; CHECK-NEXT: call void @use.internalized(i8* nofree addrspacecast (i8 addrspace(3)* getelementptr inbounds ([16 x i8], [16 x i8] addrspace(3)* @x_shared, i32 0, i32 0) to i8*)) #[[ATTR6]]
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; CHECK-NEXT: br label [[NEXT:%.*]]
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; CHECK: next:
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; CHECK-NEXT: call void @unknown_no_openmp()
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; CHECK-NEXT: [[B0:%.*]] = icmp eq i32 [[C]], -1
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; CHECK-NEXT: br i1 [[B0]], label [[MASTER2:%.*]], label [[EXIT]]
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; CHECK: master2:
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; CHECK-NEXT: call void @use.internalized(i8* nofree addrspacecast (i8 addrspace(3)* getelementptr inbounds ([4 x i8], [4 x i8] addrspace(3)* @y_shared, i32 0, i32 0) to i8*)) #[[ATTR6]]
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: call void @__kmpc_target_deinit(%struct.ident_t* @[[GLOB1]], i8 1, i1 true)
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; CHECK-NEXT: ret void
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;
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;
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; CHECK-LABEL: define {{[^@]+}}@baz_spmd
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; CHECK-SAME: () #[[ATTR0]] {
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; CHECK-NEXT: [[C:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* @[[GLOB1]], i8 2, i1 true, i1 true)
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; CHECK-NEXT: call void @unknown_no_openmp()
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; CHECK-NEXT: [[C0:%.*]] = icmp eq i32 [[C]], -1
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; CHECK-NEXT: br i1 [[C0]], label [[MASTER3:%.*]], label [[EXIT:%.*]]
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; CHECK: master3:
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; CHECK-NEXT: [[Z:%.*]] = call align 4 i8* @__kmpc_alloc_shared(i64 24) #[[ATTR6]], !dbg [[DBG10:![0-9]+]]
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; CHECK-NEXT: call void @use.internalized(i8* nofree [[Z]]) #[[ATTR6]]
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; CHECK-NEXT: call void @__kmpc_free_shared(i8* [[Z]], i64 24) #[[ATTR6]]
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: call void @__kmpc_target_deinit(%struct.ident_t* @[[GLOB1]], i8 2, i1 true)
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; CHECK-NEXT: ret void
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;
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;
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; CHECK: Function Attrs: nofree norecurse nounwind memory(write)
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; CHECK-LABEL: define {{[^@]+}}@use.internalized
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; CHECK-SAME: (i8* nofree [[X:%.*]]) #[[ATTR1:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: store i8* [[X]], i8** @S, align 8
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; CHECK-NEXT: ret void
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;
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;
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; CHECK-LABEL: define {{[^@]+}}@use
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; CHECK-SAME: (i8* [[X:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: store i8* [[X]], i8** @S, align 8
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; CHECK-NEXT: ret void
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;
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;
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; CHECK: Function Attrs: nosync nounwind allocsize(0) memory(read)
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; CHECK-LABEL: define {{[^@]+}}@__kmpc_alloc_shared
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; CHECK-SAME: (i64 [[TMP0:%.*]]) #[[ATTR2:[0-9]+]] {
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; CHECK-NEXT: [[L:%.*]] = load i32, i32* @offset, align 4
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, i8* addrspacecast (i8 addrspace(3)* getelementptr inbounds ([1024 x i8], [1024 x i8] addrspace(3)* @stack, i32 0, i32 0) to i8*), i32 [[L]]
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; CHECK-NEXT: ret i8* [[GEP]]
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;
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;.
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; CHECK: attributes #[[ATTR0]] = { "kernel" }
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; CHECK: attributes #[[ATTR1]] = { nofree norecurse nounwind memory(write) }
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; CHECK: attributes #[[ATTR2]] = { nosync nounwind allocsize(0) memory(read) }
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; CHECK: attributes #[[ATTR3:[0-9]+]] = { nosync nounwind }
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; CHECK: attributes #[[ATTR4:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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; CHECK: attributes #[[ATTR5:[0-9]+]] = { "llvm.assume"="omp_no_openmp" }
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; CHECK: attributes #[[ATTR6]] = { nounwind }
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;.
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; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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; CHECK: [[META1:![0-9]+]] = !DIFile(filename: "replace_globalization.c", directory: "/tmp/replace_globalization.c")
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; CHECK: [[META2:![0-9]+]] = !{}
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; CHECK: [[META3:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
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; CHECK: [[META4:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
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; CHECK: [[META5:![0-9]+]] = !{i32 7, !"openmp", i32 50}
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; CHECK: [[META6:![0-9]+]] = !{i32 7, !"openmp-device", i32 50}
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; CHECK: [[META7:![0-9]+]] = !{void ()* @foo, !"kernel", i32 1}
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; CHECK: [[META8:![0-9]+]] = !{void ()* @bar, !"kernel", i32 1}
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; CHECK: [[META9:![0-9]+]] = !{void ()* @baz_spmd, !"kernel", i32 1}
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; CHECK: [[DBG10]] = !DILocation(line: 5, column: 14, scope: !11)
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; CHECK: [[META11:![0-9]+]] = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 1, type: !12, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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; CHECK: [[META12:![0-9]+]] = !DISubroutineType(types: !2)
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;.
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