https://github.com/skatrak updated https://github.com/llvm/llvm-project/pull/150923
>From 9ba91fe91269b5771dfa94114e2606b29d79e2f1 Mon Sep 17 00:00:00 2001 From: Sergio Afonso <[email protected]> Date: Tue, 8 Jul 2025 12:27:08 +0100 Subject: [PATCH] [OpenMP][OMPIRBuilder] Add device shared memory allocation support This patch adds the `__kmpc_alloc_shared` and `__kmpc_free_shared` DeviceRTL functions to the list of those the OMPIRBuilder is able to create. --- .../llvm/Frontend/OpenMP/OMPIRBuilder.h | 23 ++++++++++++++++ llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp | 27 +++++++++++++++++++ 2 files changed, 50 insertions(+) diff --git a/llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h b/llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h index 0a11617ea971c..6a657724dc611 100644 --- a/llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h +++ b/llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h @@ -2924,6 +2924,29 @@ class OpenMPIRBuilder { LLVM_ABI CallInst *createOMPFree(const LocationDescription &Loc, Value *Addr, Value *Allocator, std::string Name = ""); + /// Create a runtime call for kmpc_alloc_shared. + /// + /// \param Loc The insert and source location description. + /// \param VarType Type of variable to be allocated. + /// \param Name Name of call Instruction. + /// + /// \returns CallInst to the kmpc_alloc_shared call. + LLVM_ABI CallInst *createOMPAllocShared(const LocationDescription &Loc, + Type *VarType, + const Twine &Name = Twine("")); + + /// Create a runtime call for kmpc_free_shared. + /// + /// \param Loc The insert and source location description. + /// \param Addr Value obtained from the corresponding kmpc_alloc_shared call. + /// \param VarType Type of variable to be freed. + /// \param Name Name of call Instruction. + /// + /// \returns CallInst to the kmpc_free_shared call. + LLVM_ABI CallInst *createOMPFreeShared(const LocationDescription &Loc, + Value *Addr, Type *VarType, + const Twine &Name = Twine("")); + /// Create a runtime call for kmpc_threadprivate_cached /// /// \param Loc The insert and source location description. diff --git a/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp b/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp index fb501983ca938..ab2a059e423c1 100644 --- a/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp +++ b/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp @@ -6657,6 +6657,33 @@ CallInst *OpenMPIRBuilder::createOMPFree(const LocationDescription &Loc, return Builder.CreateCall(Fn, Args, Name); } +CallInst *OpenMPIRBuilder::createOMPAllocShared(const LocationDescription &Loc, + Type *VarType, + const Twine &Name) { + IRBuilder<>::InsertPointGuard IPG(Builder); + updateToLocation(Loc); + + const DataLayout &DL = M.getDataLayout(); + Value *Args[] = {Builder.getInt64(DL.getTypeStoreSize(VarType))}; + Function *Fn = getOrCreateRuntimeFunctionPtr(OMPRTL___kmpc_alloc_shared); + CallInst *Call = Builder.CreateCall(Fn, Args, Name); + Call->addRetAttr( + Attribute::getWithAlignment(M.getContext(), DL.getPrefTypeAlign(Int64))); + return Call; +} + +CallInst *OpenMPIRBuilder::createOMPFreeShared(const LocationDescription &Loc, + Value *Addr, Type *VarType, + const Twine &Name) { + IRBuilder<>::InsertPointGuard IPG(Builder); + updateToLocation(Loc); + + Value *Args[] = { + Addr, Builder.getInt64(M.getDataLayout().getTypeStoreSize(VarType))}; + Function *Fn = getOrCreateRuntimeFunctionPtr(OMPRTL___kmpc_free_shared); + return Builder.CreateCall(Fn, Args, Name); +} + CallInst *OpenMPIRBuilder::createOMPInteropInit( const LocationDescription &Loc, Value *InteropVar, omp::OMPInteropType InteropType, Value *Device, Value *NumDependences, _______________________________________________ llvm-branch-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
