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/*========================== begin_copyright_notice ============================
Copyright (C) 2024 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "IGC/BiFModule/Headers/bif_control_common.h"
#include "IGC/common/StringMacros.hpp"
#include "vc/GenXOpts/GenXOpts.h"
#include "vc/Support/BackendConfig.h"
#include "vc/Support/GenXDiagnostic.h"
#include "llvm/PassRegistry.h"
#include <llvm/IR/Function.h>
#include <llvm/IR/Module.h>
#include <llvm/Pass.h>
#include <llvm/Support/Registry.h>
#include <llvmWrapper/IR/Instructions.h>
#include <map>
using namespace llvm;
#define DEBUG_TYPE "GenXBIFFlagCtrlResolution"
#define BIF_FLAG_CONTROL(BIF_FLAG_TYPE, BIF_FLAG_NAME) \
BIF_FLAG_CTRL_N_S(BIF_FLAG_NAME),
#define BIF_FLAG_CTRL_SET(BIF_FLAG_NAME, BIF_FLAG_VALUE) \
ListDelegates.emplace(BIF_FLAG_CTRL_N_S(BIF_FLAG_NAME), [this]() -> bool { \
return replace(BIF_FLAG_VALUE, pModule->getGlobalVariable( \
BIF_FLAG_CTRL_N_S(BIF_FLAG_NAME))); \
})
namespace {
class GenXBIFFlagCtrlResolution final : public llvm::ModulePass {
public:
// Pass identification, replacement for typeid
static char ID;
GenXBIFFlagCtrlResolution() : ModulePass(ID) {}
~GenXBIFFlagCtrlResolution() {}
virtual bool runOnModule(Module &M) override;
private:
Module *pModule = nullptr;
std::map<StringRef, std::function<bool()>> ListDelegates;
template <typename T> bool replace(T Value, GlobalVariable *GV);
void FillFlagCtrl();
};
} // namespace
void GenXBIFFlagCtrlResolution::FillFlagCtrl() {
// Here we can add more flags
// Provide in first argument BiF flag control defined in
// IGC/BiFModule/Headers/bif_flag_controls.h
// In second place provide the value which should be
// inserted for this flag. If needed feed class GenXBIFFlagCtrlResolution
// with new value from outside.
// Need to feed this correctly
BIF_FLAG_CTRL_SET(PlatformType, 0 /*platform.GetProductFamily()*/);
BIF_FLAG_CTRL_SET(RenderFamily, 0 /*platform.eRenderCoreFamily*/);
BIF_FLAG_CTRL_SET(FlushDenormals, true);
BIF_FLAG_CTRL_SET(DashGSpecified, false);
BIF_FLAG_CTRL_SET(FastRelaxedMath, false);
BIF_FLAG_CTRL_SET(MadEnable, false);
BIF_FLAG_CTRL_SET(UseNative64BitIntBuiltin, true);
BIF_FLAG_CTRL_SET(UseNative64BitFloatBuiltin, true);
BIF_FLAG_CTRL_SET(CRMacros, true);
BIF_FLAG_CTRL_SET(IsSPIRV, false);
BIF_FLAG_CTRL_SET(EnableSWSrgbWrites, false);
BIF_FLAG_CTRL_SET(ProfilingTimerResolution, 0.0f);
BIF_FLAG_CTRL_SET(UseMathWithLUT, false);
BIF_FLAG_CTRL_SET(UseHighAccuracyMath, false);
BIF_FLAG_CTRL_SET(UseAssumeInGetGlobalId, true);
// FIXME: target specific, but subtarget cannot be reached in middle-end.
BIF_FLAG_CTRL_SET(HasInt64SLMAtomicCAS, false);
BIF_FLAG_CTRL_SET(JointMatrixLoadStoreOpt, 3);
BIF_FLAG_CTRL_SET(OptDisable, false);
BIF_FLAG_CTRL_SET(UseNativeFP32GlobalAtomicAdd, false);
BIF_FLAG_CTRL_SET(UseNativeFP16AtomicMinMax, false);
BIF_FLAG_CTRL_SET(UseNativeFP64GlobalAtomicAdd, false);
BIF_FLAG_CTRL_SET(HasThreadPauseSupport, false);
BIF_FLAG_CTRL_SET(hasHWLocalThreadID, false);
BIF_FLAG_CTRL_SET(APIRS, false);
BIF_FLAG_CTRL_SET(UseLSC, false);
BIF_FLAG_CTRL_SET(UseBfn, false);
BIF_FLAG_CTRL_SET(ForceL1Prefetch, false);
BIF_FLAG_CTRL_SET(UseNativeFP64GlobalAtomicAdd, false);
BIF_FLAG_CTRL_SET(MaxHWThreadIDPerSubDevice, 1);
BIF_FLAG_CTRL_SET(UseOOBChecks, false);
BIF_FLAG_CTRL_SET(UseBindlessImage, false);
}
#undef BIF_FLAG_CTRL_SET
bool GenXBIFFlagCtrlResolution::runOnModule(Module &M) {
pModule = &M;
FillFlagCtrl();
std::vector<StringRef> listOfFlagNames{
#include "IGC/BiFModule/Headers/bif_flag_controls.h"
};
bool wasModuleUpdated = false;
for (size_t i = 0; i < listOfFlagNames.size(); ++i) {
StringRef &bif_flag = listOfFlagNames[i];
auto iter = ListDelegates.find(bif_flag);
if (iter != ListDelegates.end()) {
// Here we are replacing the Bif flag control if present,
// it's executing the delegate function
wasModuleUpdated |= iter->second();
} else {
IGC_ASSERT_EXIT_MESSAGE(
0, "[BIF_VC] Missing setup for flag %s in FillFlagCtrl function",
bif_flag.str().c_str());
}
}
return wasModuleUpdated;
}
#undef BIF_FLAG_CONTROL
template <typename T>
bool GenXBIFFlagCtrlResolution::replace(T Value, GlobalVariable *GV) {
bool Changed = false;
if (!GV)
return Changed;
if (std::is_enum<T>() || std::is_integral<T>()) {
GV->setInitializer(ConstantInt::getIntegerValue(
GV->getValueType(),
APInt((unsigned)GV->getValueType()->getPrimitiveSizeInBits(),
(unsigned int)Value, std::is_signed<T>())));
Changed = true;
} else if (std::is_floating_point<T>()) {
GV->setInitializer(ConstantFP::get(GV->getValueType(), (double)Value));
Changed = true;
} else {
IGC_ASSERT_EXIT_MESSAGE(0, "[BIF_VC] Not supported BiF flag control type");
}
return Changed;
}
char GenXBIFFlagCtrlResolution::ID = 0;
INITIALIZE_PASS_BEGIN(GenXBIFFlagCtrlResolution, "GenXBIFFlagCtrlResolution",
"GenXBIFFlagCtrlResolution", false, false)
INITIALIZE_PASS_END(GenXBIFFlagCtrlResolution, "GenXBIFFlagCtrlResolution",
"GenXBIFFlagCtrlResolution", false, false)
namespace llvm {
ModulePass *createGenXBIFFlagCtrlResolutionPass() {
initializeGenXBIFFlagCtrlResolutionPass(*PassRegistry::getPassRegistry());
return new GenXBIFFlagCtrlResolution;
}
} // namespace llvm
#if LLVM_VERSION_MAJOR >= 16
PreservedAnalyses
GenXBIFFlagCtrlResolutionPass::run(llvm::Module &M,
llvm::AnalysisManager<llvm::Module> &) {
GenXBIFFlagCtrlResolution GenXBiF;
if (GenXBiF.runOnModule(M))
return PreservedAnalyses::none();
return PreservedAnalyses::all();
}
// TODO: No lit-tests
#endif
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