b2a8d2c69b
The Attributor has logic to run only on assumed live functions and this is exposed to users now. OpenMP-opt will (mostly) ignore dead internal functions now but run the same deduction as before if an internal function is marked live. This should lower compile time as we run on less code and delete more code early on. For the full OpenMC module compiled with noinline and JITed at runtime, we save ~25%, or ~10s on my machine during JITing.
108 lines
4.6 KiB
LLVM
108 lines
4.6 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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@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_exec_mode = weak constant i8 0
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define weak void @__omp_offloading_fd02_85283c04_main_l11(ptr nonnull align 8 dereferenceable(8) %X) local_unnamed_addr {
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entry:
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%0 = tail call i32 @__kmpc_target_init(ptr nonnull @1, i8 2, i1 false) #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(ptr nonnull @1, i8 2) #0
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br label %common.ret
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}
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declare i32 @__kmpc_target_init(ptr, i8, i1) local_unnamed_addr
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declare void @__kmpc_target_deinit(ptr, i8) local_unnamed_addr
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define weak void @__omp_offloading__fd02_85283c04_Device_l6_ctor() {
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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 nonnull align 8 dereferenceable(8) [[X:%.*]]) local_unnamed_addr {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @__kmpc_target_init(ptr nonnull @[[GLOB1:[0-9]+]], i8 2, i1 false) #[[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]], i32 [[TMP2]]) #[[ATTR1]]
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; CHECK-NEXT: tail call void @__kmpc_target_deinit(ptr nonnull @[[GLOB1]], i8 2) #[[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-NEXT: entry:
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; CHECK-NEXT: [[CALL_I:%.*]] = tail call double @__nv_log(double noundef 2.000000e+00) #[[ATTR0:[0-9]+]]
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; CHECK-NEXT: [[CALL_I2:%.*]] = tail call double @__nv_log(double noundef 2.000000e+00) #[[ATTR0]]
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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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