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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "Compiler/Optimizer/OpenCLPasses/ExtensionFuncs/ExtensionArgAnalysis.hpp"
#include "Compiler/IGCPassSupport.h"
#include "Compiler/Optimizer/OCLBIUtils.h"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/IR/Function.h>
#include "common/LLVMWarningsPop.hpp"
using namespace llvm;
using namespace IGC;
// Register pass to igc-opt
#define PASS_FLAG "igc-extension-arg-analysis"
#define PASS_DESCRIPTION "Analyzes extension functions arguments"
#define PASS_CFG_ONLY false
#define PASS_ANALYSIS true
IGC_INITIALIZE_PASS_BEGIN(ExtensionArgAnalysis, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
IGC_INITIALIZE_PASS_DEPENDENCY(MetaDataUtilsWrapper)
IGC_INITIALIZE_PASS_END(ExtensionArgAnalysis, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
namespace IGC
{
char ExtensionArgAnalysis::ID = 0;
// VME Functions:
enum VME_FUNCTIONS
{
VME_FUNCTION,
ADVANCED_VME_FUNCTION,
ADVANCED_VME_BIDIR_FUNCTION,
NUM_VME_FUNCTIONS
};
static const llvm::StringRef VME_FUNCTION_STRINGS[] =
{
"block_motion_estimate_intel",
"block_advanced_motion_estimate_check_intel",
"block_advanced_motion_estimate_bidirectional_check_intel"
};
static_assert(
sizeof(VME_FUNCTION_STRINGS) / sizeof(*VME_FUNCTION_STRINGS) == NUM_VME_FUNCTIONS,
"VME_FUNCTION_STRINGS array needs to be in sync with VME_FUNCTIONS enum, fix me!");
// VA functions:
enum VA_FUNCTIONS
{
VA_FUNCTION_ERODE,
VA_FUNCTION_DILATE,
VA_FUNCTION_MIN_FILTER,
VA_FUNCTION_MAX_FILTER,
VA_FUNCTION_CONVOLVE,
VA_FUNCTION_MINMAX,
VA_FUNCTION_CENTROID,
VA_FUNCTION_BOOL_CENTROID,
VA_FUNCTION_BOOL_SUM,
VA_FUNCTION_CONVOLVE_1D,
VA_FUNCTION_CONVOLVE_PIXEL,
VA_FUNCTION_LBP_IMAGE,
VA_FUNCTION_LBP_CORRELATION,
VA_FUNCTION_FLOODFILL,
VA_FUNCTION_CORRELATION_SEARCH,
NUM_VA_FUNCTIONS
};
static const llvm::StringRef VA_FUNCTION_STRINGS[] =
{
"erode_2d_intel",
"dilate_2d_intel",
"min_filter_2d_intel",
"max_filter_2d_intel",
"convolve_2d_intel",
"minmax_2d_intel",
"centroid_2d_intel",
"bool_centroid_2d_intel",
"bool_sum_2d_intel",
"convolve_1d_intel",
"convolve_pixel_intel",
"lbp_image_intel",
"lbp_correlation_intel",
"floodfill_intel",
"correlation_search_intel",
};
static_assert(
sizeof(VA_FUNCTION_STRINGS) / sizeof(*VA_FUNCTION_STRINGS) == NUM_VA_FUNCTIONS,
"VA_FUNCTION_STRINGS array needs to be in sync with VA_FUNCTIONS enum, fix me!");
const ResourceExtensionTypeEnum VA_FUNCTION_SAMPLER_TYPES[] =
{
ResourceExtensionTypeEnum::MediaSamplerTypeErode,
ResourceExtensionTypeEnum::MediaSamplerTypeDilate,
ResourceExtensionTypeEnum::MediaSamplerTypeMinMaxFilter,
ResourceExtensionTypeEnum::MediaSamplerTypeMinMaxFilter,
ResourceExtensionTypeEnum::MediaSamplerTypeConvolve,
ResourceExtensionTypeEnum::MediaSamplerTypeMinMax,
ResourceExtensionTypeEnum::MediaSamplerTypeCentroid,
ResourceExtensionTypeEnum::MediaSamplerTypeBoolCentroid,
ResourceExtensionTypeEnum::MediaSamplerTypeBoolSum,
// SKL+ functions:
ResourceExtensionTypeEnum::MediaSamplerTypeConvolve,
ResourceExtensionTypeEnum::MediaSamplerTypeConvolve,
ResourceExtensionTypeEnum::MediaSamplerTypeLbp,
ResourceExtensionTypeEnum::MediaSamplerTypeLbp,
ResourceExtensionTypeEnum::MediaSamplerTypeFloodFill,
ResourceExtensionTypeEnum::MediaSamplerTypeCorrelation,
};
static_assert(
sizeof(VA_FUNCTION_SAMPLER_TYPES) / sizeof(*VA_FUNCTION_SAMPLER_TYPES) == NUM_VA_FUNCTIONS,
"Sampler mapping array needs to be in sync with VA_FUNCTIONS enum, fix me!");
ExtensionArgAnalysis::ExtensionArgAnalysis() : FunctionPass(ID)
{
m_extensionType = ResourceExtensionTypeEnum::NonExtensionType;
initializeExtensionArgAnalysisPass(*PassRegistry::getPassRegistry());
}
void ExtensionArgAnalysis::visitCallInst(llvm::CallInst& CI)
{
auto* F = CI.getCalledFunction();
if (!F)
{
return;
}
auto SetExtension = [&](int argIndex, ResourceExtensionTypeEnum expected, SmallPtrSet<Argument*, 3> & Args)
{
if (auto * pArg = dyn_cast<Argument>(ValueTracker::track(&CI, argIndex))) {
if (m_ExtensionMap.count(pArg) != 0)
{
if (m_ExtensionMap[pArg] != expected)
{
getAnalysis<CodeGenContextWrapper>().getCodeGenContext()->EmitError("Inconsistent use of image!", &CI);
return;
}
}
else
{
m_ExtensionMap[pArg] = expected;
Args.insert(pArg);
}
}
};
//
// If kernel has device-side VME built-ins, its simd size has to be 16 given that
// those built-ins only work for SIMD16 kernels.
//
auto CheckandSetSIMD16 = [&]()
{
if (IGC::IGCMD::MetaDataUtils * pMdUtils = getAnalysis<MetaDataUtilsWrapper>().getMetaDataUtils())
{
auto funcIter = pMdUtils->findFunctionsInfoItem(CI.getParent()->getParent());
if (funcIter != pMdUtils->end_FunctionsInfo())
{
IGC::IGCMD::SubGroupSizeMetaDataHandle subGroupSize = funcIter->second->getSubGroupSize();
if (subGroupSize->hasValue())
{
if (subGroupSize->getSIMD_size() != 16)
getAnalysis<CodeGenContextWrapper>().getCodeGenContext()->EmitError("SIMD16 is expected", &CI);
}
else
subGroupSize->setSIMD_size(16);
}
}
};
StringRef name = F->getName();
if (name.startswith("__builtin_IB_media_block_") || name == "__builtin_IB_media_block_rectangle_read")
{
SetExtension(0, ResourceExtensionTypeEnum::MediaResourceBlockType, m_MediaBlockArgs);
}
else if (name == "__builtin_IB_vme_send_fbr" ||
name == "__builtin_IB_vme_send_ime")
{
SetExtension(3, ResourceExtensionTypeEnum::MediaResourceType, m_MediaArgs);
SetExtension(4, ResourceExtensionTypeEnum::MediaResourceType, m_MediaArgs);
CheckandSetSIMD16();
}
else if (name == "__builtin_IB_vme_send_sic")
{
SetExtension(3, ResourceExtensionTypeEnum::MediaResourceType, m_MediaArgs);
SetExtension(4, ResourceExtensionTypeEnum::MediaResourceType, m_MediaArgs);
SetExtension(5, ResourceExtensionTypeEnum::MediaResourceType, m_MediaArgs);
CheckandSetSIMD16();
}
else if (name.startswith("__builtin_IB_vme_send_ime_new") ||
name == "__builtin_IB_vme_send_sic_new" ||
name == "__builtin_IB_vme_send_fbr_new")
{
// Handle image args.
SetExtension(1, ResourceExtensionTypeEnum::MediaResourceType, m_MediaArgs);
SetExtension(2, ResourceExtensionTypeEnum::MediaResourceType, m_MediaArgs);
SetExtension(3, ResourceExtensionTypeEnum::MediaResourceType, m_MediaArgs);
// Handle sampler arg.
SetExtension(4, ResourceExtensionTypeEnum::MediaSamplerType, m_MediaSamplerArgs);
CheckandSetSIMD16();
}
}
bool ExtensionArgAnalysis::runOnFunction(Function& F)
{
m_ExtensionMap.clear();
m_MediaArgs.clear();
m_MediaBlockArgs.clear();
m_extensionType = ResourceExtensionTypeEnum::NonExtensionType;
m_vaArgs.clear();
m_MediaSamplerArgs.clear();
visit(F);
StringRef funcName = F.getName();
if (funcName == VME_FUNCTION_STRINGS[VME_FUNCTION] ||
funcName == VME_FUNCTION_STRINGS[ADVANCED_VME_FUNCTION] ||
funcName == VME_FUNCTION_STRINGS[ADVANCED_VME_BIDIR_FUNCTION])
{
// First function arg is the sampler
auto arg = F.arg_begin();
m_MediaSamplerArgs.insert(&(*arg));
}
m_extensionType = ResourceExtensionTypeEnum::NonExtensionType;
for (int func = VA_FUNCTION_ERODE; func < NUM_VA_FUNCTIONS; ++func)
{
if (funcName.equals(VA_FUNCTION_STRINGS[func]))
{
// First function arg is the src image, second is the sampler,
// and third arg is output buffer (ignored by this analysis).
auto arg = F.arg_begin();
for (int i = 0; i < 2; ++i)
{
m_vaArgs.insert(&(*arg));
arg++;
}
m_extensionType = VA_FUNCTION_SAMPLER_TYPES[func];
}
}
return false;
}
} // namespace IGC
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