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[OpenMP] Strip NoInline from known OpenMP runtime functions

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This patch strips the NoInline attribute from known OpenMP runtime functions.
This is done so that we can denote certain runtime functions as NoInline to
ensure their call sites are intact so they can be checked by OpenMPOpt. We
don't wan't this noinline attribute to remain for any functions after OpenMPOpt
has been run however.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D106482
This commit is contained in:
Joseph Huber 2021-07-21 15:52:04 -04:00 committed by Huber, Joseph
parent 4323f25227
commit 191a71d3e8
2 changed files with 5 additions and 4 deletions
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1
lib/Transforms/IPO/OpenMPOpt.cpp
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@ -414,6 +414,7 @@ struct OMPInformationCache : public InformationCache {
RTLFunctions.insert(F); \
if (declMatchesRTFTypes(F, OMPBuilder._ReturnType, ArgsTypes)) { \
RuntimeFunctionIDMap[F] = _Enum; \
F->removeFnAttr(Attribute::NoInline); \
auto &RFI = RFIs[_Enum]; \
RFI.Kind = _Enum; \
RFI.Name = _Name; \

8
test/Transforms/OpenMP/add_attributes.ll
View File

@ -666,10 +666,10 @@ declare i8* @__kmpc_task_reduction_modifier_init(i8*, i32, i32, i32, i8*)
declare void @__kmpc_proxy_task_completed_ooo(i8*)
; Function Attrs: noinline
; Function Attrs: noinline cold
declare void @__kmpc_barrier_simple_spmd(%struct.ident_t* nocapture nofree readonly, i32) #0
attributes #0 = { noinline }
attributes #0 = { noinline cold }
; CHECK: ; Function Attrs: nounwind
; CHECK-NEXT: declare dso_local void @omp_set_num_threads(i32)
@ -1208,7 +1208,7 @@ attributes #0 = { noinline }
; CHECK: ; Function Attrs: nounwind
; CHECK-NEXT: declare void @__kmpc_proxy_task_completed_ooo(i8*)
; CHECK: ; Function Attrs: convergent noinline nounwind
; CHECK: ; Function Attrs: cold convergent nounwind
; CHECK-NEXT: declare void @__kmpc_barrier_simple_spmd(%struct.ident_t* nocapture nofree readonly, i32)
; OPTIMISTIC: ; Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn writeonly
@ -1736,7 +1736,7 @@ attributes #0 = { noinline }
; OPTIMISTIC: ; Function Attrs: nofree nosync nounwind willreturn
; OPTIMISTIC-NEXT: declare void @__kmpc_proxy_task_completed_ooo(i8*)
; OPTIMISTIC: ; Function Attrs: convergent noinline nounwind
; OPTIMISTIC: ; Function Attrs: cold convergent nounwind
; OPTIMISTIC-NEXT: declare void @__kmpc_barrier_simple_spmd(%struct.ident_t* nocapture nofree readonly, i32)
!llvm.module.flags = !{!0}