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//===-- AMDILAsmPrinterEG.cpp - TODO: Add brief description -------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//==-----------------------------------------------------------------------===//
#include "AMDILEGAsmPrinter.h"
#include "AMDILAlgorithms.tpp"
#include "AMDILDevices.h"
#include "AMDILEGAsmPrinter.h"
#include "AMDILGlobalManager.h"
#include "AMDILKernelManager.h"
#include "AMDILMachineFunctionInfo.h"
#include "AMDILUtilityFunctions.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Analysis/DebugInfo.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/Constants.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Metadata.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/DebugLoc.h"
#include "llvm/Support/InstIterator.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Type.h"
using namespace llvm;
// TODO: Add support for verbose.
AMDILEGAsmPrinter::AMDILEGAsmPrinter(TargetMachine& TM, MCStreamer &Streamer)
: AMDILAsmPrinter(TM, Streamer)
{
}
AMDILEGAsmPrinter::~AMDILEGAsmPrinter()
{
}
//
// @param name
// @brief strips KERNEL_PREFIX and KERNEL_SUFFIX from the name
// and returns that name if both of the tokens are present.
//
static
std::string Strip(const std::string &name)
{
size_t start = name.find("__OpenCL_");
size_t end = name.find("_kernel");
if (start == std::string::npos
|| end == std::string::npos
|| (start == end)) {
return name;
} else {
return name.substr(9, name.length()-16);
}
}
void
AMDILEGAsmPrinter::emitMacroFunc(const MachineInstr *MI,
llvm::raw_ostream &O)
{
const AMDILSubtarget *curTarget = mTM->getSubtargetImpl();
const char *name = "unknown";
llvm::StringRef nameRef;
if (MI->getOperand(0).isGlobal()) {
nameRef = MI->getOperand(0).getGlobal()->getName();
name = nameRef.data();
}
if (!::strncmp(name, "__fma_f32", 9) && curTarget->device()->usesHardware(
AMDILDeviceInfo::FMA)) {
name = "__hwfma_f32";
}
emitMCallInst(MI, O, name);
}
bool
AMDILEGAsmPrinter::runOnMachineFunction(MachineFunction &lMF)
{
this->MF = &lMF;
mMeta->setMF(&lMF);
mMFI = lMF.getInfo<AMDILMachineFunctionInfo>();
SetupMachineFunction(lMF);
std::string kernelName = MF->getFunction()->getName();
mName = Strip(kernelName);
mKernelName = kernelName;
EmitFunctionHeader();
EmitFunctionBody();
return false;
}
void
AMDILEGAsmPrinter::EmitInstruction(const MachineInstr *II)
{
std::string FunStr;
raw_string_ostream OFunStr(FunStr);
formatted_raw_ostream O(OFunStr);
const AMDILSubtarget *curTarget = mTM->getSubtargetImpl();
if (mDebugMode) {
O << ";" ;
II->print(O);
}
if (isMacroFunc(II)) {
emitMacroFunc(II, O);
O.flush();
OutStreamer.EmitRawText(StringRef(FunStr));
return;
}
if (isMacroCall(II)) {
const char *name;
name = mTM->getInstrInfo()->getName(II->getOpcode()) + 5;
if (!::strncmp(name, "__fma_f32", 9)
&& curTarget->device()->usesHardware(
AMDILDeviceInfo::FMA)) {
name = "__hwfma_f32";
}
//assert(0 &&
//"Found a macro that is still in use!");
int macronum = amd::MacroDBFindMacro(name);
O << "\t;"<< name<<"\n";
O << "\tmcall("<<macronum<<")";
if (curTarget->device()->isSupported(
AMDILDeviceInfo::MacroDB)) {
mMacroIDs.insert(macronum);
} else {
mMFI->addCalledIntr(macronum);
}
}
// Print the assembly for the instruction.
// We want to make sure that we do HW constants
// before we do arena segment
// TODO: This is a hack to get around some
// conformance failures.
if (mMeta->useCompilerWrite(II)) {
O << "\tif_logicalz cb0[0].x\n";
if (mMFI->usesMem(AMDILDevice::RAW_UAV_ID)) {
O << "\tuav_raw_store_id("
<< curTarget->device()->getResourceID(AMDILDevice::RAW_UAV_ID)
<< ") ";
O << "mem0.x___, cb0[3].x, r0.0\n";
} else {
O << "\tuav_arena_store_id("
<< curTarget->device()->getResourceID(AMDILDevice::ARENA_UAV_ID)
<< ")_size(dword) ";
O << "cb0[3].x, r0.0\n";
}
O << "\tendif\n";
mMFI->addMetadata(";memory:compilerwrite");
} else {
printInstruction(II, O);
}
O.flush();
OutStreamer.EmitRawText(StringRef(FunStr));
}
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