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eternastudentoigcbot
eternastudento
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Move ModuleAllocaInfo to the header for reuse.
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-104
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2 files changed

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-104
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‎IGC/Compiler/Optimizer/OpenCLPasses/PrivateMemory/PrivateMemoryResolution.cpp

Lines changed: 0 additions & 103 deletions
Original file line numberDiff line numberDiff line change
@@ -108,109 +108,6 @@ namespace IGC {
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{
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return new PrivateMemoryResolution();
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}
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/// \brief Analyze alloca instructions and determine the size and offset of
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/// each alloca and the total amount of private memory needed by each kernel.
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class ModuleAllocaInfo {
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public:
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ModuleAllocaInfo(Module* M, const DataLayout* DL,
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GenXFunctionGroupAnalysis* FGA = nullptr)
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: M(M), DL(DL), FGA(FGA) {
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analyze();
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}
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~ModuleAllocaInfo() {
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for (auto I = InfoMap.begin(), E = InfoMap.end(); I != E; ++I)
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delete I->second;
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}
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ModuleAllocaInfo(const ModuleAllocaInfo&) = delete;
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ModuleAllocaInfo& operator=(const ModuleAllocaInfo&) = delete;
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/// \brief Return the offset of alloca instruction in private memory buffer.
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// This function should not be called when AI is variable length alloca
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unsigned getConstBufferOffset(AllocaInst* AI) const {
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IGC_ASSERT(isa<ConstantInt>(AI->getArraySize()));
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Function* F = AI->getParent()->getParent();
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return getFuncAllocaInfo(F)->AllocaDesc[AI].first;
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}
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/// \brief Return the size of alloca instruction in private memory buffer.
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// This function should not be called when AI is variable length alloca
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unsigned getConstBufferSize(AllocaInst* AI) const {
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IGC_ASSERT(isa<ConstantInt>(AI->getArraySize()));
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Function* F = AI->getParent()->getParent();
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return getFuncAllocaInfo(F)->AllocaDesc[AI].second;
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}
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/// \brief Return all alloca instructions of a given function.
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SmallVector<AllocaInst*, 8> & getAllocaInsts(Function * F) const {
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return getFuncAllocaInfo(F)->Allocas;
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}
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/// \brief Return the total private memory size per WI of a given function.
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unsigned getTotalPrivateMemPerWI(Function* F) const {
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auto FI = getFuncAllocaInfo(F);
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return FI ? FI->TotalSize : 0;
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}
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private:
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/// \brief The module being analyzed.
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Module* const M;
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/// \brief The DataLayout object.
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const DataLayout* const DL;
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/// \brief The optional function group analysis.
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GenXFunctionGroupAnalysis* const FGA;
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struct FunctionAllocaInfo {
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void setAllocaDesc(AllocaInst* AI, unsigned Offset, unsigned Size) {
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AllocaDesc[AI] = std::make_pair(Offset, Size);
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}
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/// \brief Total amount of private memory size per kernel. All functions in
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/// a kernel will have the same size.
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unsigned TotalSize = 0;
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/// \brief Alloca instructions for a function.
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SmallVector<AllocaInst*, 8> Allocas;
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/// \brief Alloca instruction, its offset and size in buffer.
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DenseMap<AllocaInst*, std::pair<unsigned, unsigned>> AllocaDesc;
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};
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FunctionAllocaInfo* getFuncAllocaInfo(Function* F) const {
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auto Iter = InfoMap.find(F);
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if (Iter != InfoMap.end())
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return Iter->second;
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return nullptr;
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}
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FunctionAllocaInfo* getOrCreateFuncAllocaInfo(Function* F) {
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auto Iter = InfoMap.find(F);
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if (Iter != InfoMap.end())
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return Iter->second;
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auto AllocaInfo = new FunctionAllocaInfo;
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InfoMap[F] = AllocaInfo;
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return AllocaInfo;
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}
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/// \brief Analyze the module and fill function alloca info map.
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void analyze();
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/// \brief When function group analysis is available, visit group by group.
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void analyze(FunctionGroup* FG);
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/// \brief Analyze individual functions.
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void analyze(Function* F, unsigned& gOffset, unsigned& gAlignment);
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/// \brief Each function has an entry that describes its private memory
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/// usage information.
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DenseMap<Function*, FunctionAllocaInfo*> InfoMap;
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};
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} // namespace IGC
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void ModuleAllocaInfo::analyze() {

‎IGC/Compiler/Optimizer/OpenCLPasses/PrivateMemory/PrivateMemoryResolution.hpp

Lines changed: 108 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -24,12 +24,119 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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======================= end_copyright_notice ==================================*/
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#pragma once
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#include "Compiler/CISACodeGen/GenCodeGenModule.h"
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#include "common/LLVMWarningsPush.hpp"
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#include <llvm/Pass.h>
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#include "common/LLVMWarningsPop.hpp"
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using namespace llvm;
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namespace IGC
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{
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/// Lower down alloca to private memory
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llvm::ModulePass* CreatePrivateMemoryResolution();
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ModulePass* CreatePrivateMemoryResolution();
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/// \brief Analyze alloca instructions and determine the size and offset of
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/// each alloca and the total amount of private memory needed by each kernel.
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class ModuleAllocaInfo {
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public:
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ModuleAllocaInfo(Module* M, const DataLayout* DL,
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GenXFunctionGroupAnalysis* FGA = nullptr)
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: M(M), DL(DL), FGA(FGA) {
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analyze();
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}
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~ModuleAllocaInfo() {
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for (auto I = InfoMap.begin(), E = InfoMap.end(); I != E; ++I)
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delete I->second;
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}
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ModuleAllocaInfo(const ModuleAllocaInfo&) = delete;
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ModuleAllocaInfo& operator=(const ModuleAllocaInfo&) = delete;
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/// \brief Return the offset of alloca instruction in private memory buffer.
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// This function should not be called when AI is variable length alloca
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unsigned getConstBufferOffset(AllocaInst* AI) const {
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IGC_ASSERT(isa<ConstantInt>(AI->getArraySize()));
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Function* F = AI->getParent()->getParent();
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return getFuncAllocaInfo(F)->AllocaDesc[AI].first;
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}
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/// \brief Return the size of alloca instruction in private memory buffer.
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// This function should not be called when AI is variable length alloca
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unsigned getConstBufferSize(AllocaInst* AI) const {
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IGC_ASSERT(isa<ConstantInt>(AI->getArraySize()));
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Function* F = AI->getParent()->getParent();
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return getFuncAllocaInfo(F)->AllocaDesc[AI].second;
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}
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/// \brief Return all alloca instructions of a given function.
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SmallVector<AllocaInst*, 8> & getAllocaInsts(Function * F) const {
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return getFuncAllocaInfo(F)->Allocas;
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}
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/// \brief Return the total private memory size per WI of a given function.
81+
unsigned getTotalPrivateMemPerWI(Function* F) const {
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auto FI = getFuncAllocaInfo(F);
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return FI ? FI->TotalSize : 0;
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}
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private:
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/// \brief The module being analyzed.
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Module* const M;
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90+
/// \brief The DataLayout object.
91+
const DataLayout* const DL;
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93+
/// \brief The optional function group analysis.
94+
GenXFunctionGroupAnalysis* const FGA;
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96+
struct FunctionAllocaInfo {
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void setAllocaDesc(AllocaInst* AI, unsigned Offset, unsigned Size) {
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AllocaDesc[AI] = std::make_pair(Offset, Size);
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}
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/// \brief Total amount of private memory size per kernel. All functions in
102+
/// a kernel will have the same size.
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unsigned TotalSize = 0;
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105+
/// \brief Alloca instructions for a function.
106+
SmallVector<AllocaInst*, 8> Allocas;
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108+
/// \brief Alloca instruction, its offset and size in buffer.
109+
DenseMap<AllocaInst*, std::pair<unsigned, unsigned>> AllocaDesc;
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};
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112+
FunctionAllocaInfo* getFuncAllocaInfo(Function* F) const {
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auto Iter = InfoMap.find(F);
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if (Iter != InfoMap.end())
115+
return Iter->second;
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return nullptr;
117+
}
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119+
FunctionAllocaInfo* getOrCreateFuncAllocaInfo(Function* F) {
120+
auto Iter = InfoMap.find(F);
121+
if (Iter != InfoMap.end())
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return Iter->second;
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auto AllocaInfo = new FunctionAllocaInfo;
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InfoMap[F] = AllocaInfo;
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return AllocaInfo;
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}
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/// \brief Analyze the module and fill function alloca info map.
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void analyze();
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/// \brief When function group analysis is available, visit group by group.
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void analyze(FunctionGroup* FG);
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135+
/// \brief Analyze individual functions.
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void analyze(Function* F, unsigned& gOffset, unsigned& gAlignment);
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/// \brief Each function has an entry that describes its private memory
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/// usage information.
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DenseMap<Function*, FunctionAllocaInfo*> InfoMap;
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};
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}

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