3de645efe3
Before we tracked the size of the teams reduction buffer in order to allocate it at runtime per kernel launch. This patch splits the number into two parts, the size of the reduction data (=all reduction variables) and the (maximal) length of the buffer. This will allow us to allocate less if we need less, e.g., if we have less teams than the maximal length. It also allows us to move code from clangs codegen into the runtime as we now know how large the reduction data is.
111 lines
5.1 KiB
LLVM
111 lines
5.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --include-generated-funcs
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; RUN: opt -S -passes=openmp-opt < %s | FileCheck %s
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%struct.ident_t = type { i32, i32, i32, i32, ptr }
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%struct.KernelEnvironmentTy = type { %struct.ConfigurationEnvironmentTy, ptr, ptr }
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%struct.ConfigurationEnvironmentTy = type { i8, i8, i8, i32, i32, i32, i32, i32, i32 }
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@0 = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00", align 1
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@1 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, ptr @0 }, align 8
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@_ZL6Device = internal global double 0.000000e+00, align 8
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@__omp_offloading_fd02_85283c04_main_l11_kernel_environment = local_unnamed_addr constant %struct.KernelEnvironmentTy { %struct.ConfigurationEnvironmentTy { i8 0, i8 0, i8 1, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0 }, ptr @1, ptr null }
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define weak void @__omp_offloading_fd02_85283c04_main_l11(ptr %dyn, ptr nonnull align 8 dereferenceable(8) %X) local_unnamed_addr "kernel" {
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entry:
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%0 = tail call i32 @__kmpc_target_init(ptr @__omp_offloading_fd02_85283c04_main_l11_kernel_environment, ptr %dyn) #0
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%exec_user_code = icmp eq i32 %0, -1
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br i1 %exec_user_code, label %user_code.entry, label %common.ret
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common.ret:
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ret void
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user_code.entry:
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%1 = load double, ptr @_ZL6Device, align 8, !tbaa !11
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%2 = tail call i32 @__kmpc_get_hardware_thread_id_in_block() #0
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%3 = icmp eq i32 %2, 0
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br i1 %3, label %region.guarded, label %region.barrier
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region.guarded:
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store double %1, ptr %X, align 8, !tbaa !11
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br label %region.barrier
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region.barrier:
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tail call void @__kmpc_barrier_simple_spmd(ptr nonnull @1, i32 %2)
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tail call void @__kmpc_target_deinit() #0
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br label %common.ret
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}
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declare i32 @__kmpc_target_init(ptr, ptr) local_unnamed_addr
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declare void @__kmpc_target_deinit() local_unnamed_addr
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define weak void @__omp_offloading__fd02_85283c04_Device_l6_ctor() "kernel" {
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entry:
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%call.i = tail call double @__nv_log(double noundef 2.000000e+00) #1
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%call.i2 = tail call double @__nv_log(double noundef 2.000000e+00) #1
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%div = fdiv double %call.i, %call.i2
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store double %div, ptr @_ZL6Device, align 8, !tbaa !11
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ret void
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}
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declare double @__nv_log(double)
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declare i32 @__kmpc_get_hardware_thread_id_in_block()
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declare void @__kmpc_barrier_simple_spmd(ptr, i32)
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attributes #0 = { nounwind }
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attributes #1 = { convergent nounwind }
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!omp_offload.info = !{!0, !1, !2}
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!nvvm.annotations = !{!3, !4}
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!llvm.module.flags = !{!5, !6, !7, !8, !9}
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!llvm.ident = !{!10}
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!0 = !{i32 0, i32 64770, i32 -2060960764, !"__omp_offloading__fd02_85283c04_Device_l6_ctor", i32 6, i32 1}
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!1 = !{i32 0, i32 64770, i32 -2060960764, !"main", i32 11, i32 2}
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!2 = !{i32 1, !"_ZL6Device", i32 0, i32 0}
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!3 = !{ptr @__omp_offloading__fd02_85283c04_Device_l6_ctor, !"kernel", i32 1}
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!4 = !{ptr @__omp_offloading_fd02_85283c04_main_l11, !"kernel", i32 1}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{i32 7, !"openmp", i32 50}
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!7 = !{i32 7, !"openmp-device", i32 50}
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!8 = !{i32 7, !"PIC Level", i32 2}
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!9 = !{i32 7, !"frame-pointer", i32 2}
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!10 = !{!"clang version 14.0.0"}
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!11 = !{!12, !12, i64 0}
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!12 = !{!"double", !13, i64 0}
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!13 = !{!"omnipotent char", !14, i64 0}
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!14 = !{!"Simple C++ TBAA"}
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; CHECK-LABEL: define {{[^@]+}}@__omp_offloading_fd02_85283c04_main_l11
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; CHECK-SAME: (ptr [[DYN:%.*]], ptr nonnull align 8 dereferenceable(8) [[X:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @__kmpc_target_init(ptr @__omp_offloading_fd02_85283c04_main_l11_kernel_environment, ptr [[DYN]]) #[[ATTR1:[0-9]+]]
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; CHECK-NEXT: [[EXEC_USER_CODE:%.*]] = icmp eq i32 [[TMP0]], -1
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; CHECK-NEXT: br i1 [[EXEC_USER_CODE]], label [[USER_CODE_ENTRY:%.*]], label [[COMMON_RET:%.*]]
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; CHECK: common.ret:
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; CHECK-NEXT: ret void
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; CHECK: user_code.entry:
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; CHECK-NEXT: [[TMP1:%.*]] = load double, ptr @_ZL6Device, align 8, !tbaa [[TBAA11:![0-9]+]]
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; CHECK-NEXT: [[TMP2:%.*]] = tail call i32 @__kmpc_get_hardware_thread_id_in_block() #[[ATTR1]]
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; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], 0
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; CHECK-NEXT: br i1 [[TMP3]], label [[REGION_GUARDED:%.*]], label [[REGION_BARRIER:%.*]]
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; CHECK: region.guarded:
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; CHECK-NEXT: store double [[TMP1]], ptr [[X]], align 8, !tbaa [[TBAA11]]
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; CHECK-NEXT: br label [[REGION_BARRIER]]
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; CHECK: region.barrier:
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; CHECK-NEXT: tail call void @__kmpc_barrier_simple_spmd(ptr nonnull @[[GLOB1:[0-9]+]], i32 [[TMP2]]) #[[ATTR1]]
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; CHECK-NEXT: tail call void @__kmpc_target_deinit() #[[ATTR1]]
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; CHECK-NEXT: br label [[COMMON_RET]]
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;
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;
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; CHECK-LABEL: define {{[^@]+}}@__omp_offloading__fd02_85283c04_Device_l6_ctor
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; CHECK-SAME: () #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL_I:%.*]] = tail call double @__nv_log(double noundef 2.000000e+00) #[[ATTR2:[0-9]+]]
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; CHECK-NEXT: [[CALL_I2:%.*]] = tail call double @__nv_log(double noundef 2.000000e+00) #[[ATTR2]]
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; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[CALL_I]], [[CALL_I2]]
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; CHECK-NEXT: store double [[DIV]], ptr @_ZL6Device, align 8, !tbaa [[TBAA11]]
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; CHECK-NEXT: ret void
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;
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