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Diffstat (limited to 'src/gallium/drivers/radeon/AMDILImageExpansion.cpp')
| -rw-r--r-- | src/gallium/drivers/radeon/AMDILImageExpansion.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/AMDILImageExpansion.cpp b/src/gallium/drivers/radeon/AMDILImageExpansion.cpp new file mode 100644 index 00000000000..e6fe37a6b99 --- /dev/null +++ b/src/gallium/drivers/radeon/AMDILImageExpansion.cpp @@ -0,0 +1,171 @@ +//===-- AMDILImageExpansion.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. +// +//==-----------------------------------------------------------------------===// +// @file AMDILImageExpansion.cpp +// @details Implementatino of the Image expansion class for image capable devices +// +#include "AMDILIOExpansion.h" +#include "AMDILKernelManager.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/CodeGen/MachineConstantPool.h" +#include "llvm/CodeGen/MachineInstr.h" +#include "llvm/CodeGen/MachineInstrBuilder.h" +#include "llvm/DerivedTypes.h" +#include "llvm/Support/DebugLoc.h" +#include "llvm/Target/TargetInstrInfo.h" +#include "llvm/Value.h" + +using namespace llvm; + +AMDILImageExpansion::AMDILImageExpansion(TargetMachine &tm AMDIL_OPT_LEVEL_DECL) + : AMDIL789IOExpansion(tm AMDIL_OPT_LEVEL_VAR) +{ +} + +AMDILImageExpansion::~AMDILImageExpansion() +{ +} +void AMDILImageExpansion::expandInefficientImageLoad( + MachineBasicBlock *mBB, MachineInstr *MI) +{ +#if 0 + const llvm::StringRef &name = MI->getOperand(0).getGlobal()->getName(); + const char *tReg1, *tReg2, *tReg3, *tReg4; + tReg1 = mASM->getRegisterName(MI->getOperand(1).getReg()); + if (MI->getOperand(2).isReg()) { + tReg2 = mASM->getRegisterName(MI->getOperand(2).getReg()); + } else { + tReg2 = mASM->getRegisterName(AMDIL::R1); + O << "\tmov " << tReg2 << ", l" << MI->getOperand(2).getImm() << "\n"; + } + if (MI->getOperand(3).isReg()) { + tReg3 = mASM->getRegisterName(MI->getOperand(3).getReg()); + } else { + tReg3 = mASM->getRegisterName(AMDIL::R2); + O << "\tmov " << tReg3 << ", l" << MI->getOperand(3).getImm() << "\n"; + } + if (MI->getOperand(4).isReg()) { + tReg4 = mASM->getRegisterName(MI->getOperand(4).getReg()); + } else { + tReg4 = mASM->getRegisterName(AMDIL::R3); + O << "\tmov " << tReg2 << ", l" << MI->getOperand(4).getImm() << "\n"; + } + bool internalSampler = false; + //bool linear = true; + unsigned ImageCount = 3; // OPENCL_MAX_READ_IMAGES + unsigned SamplerCount = 3; // OPENCL_MAX_SAMPLERS + if (ImageCount - 1) { + O << "\tswitch " << mASM->getRegisterName(MI->getOperand(1).getReg()) + << "\n"; + } + for (unsigned rID = 0; rID < ImageCount; ++rID) { + if (ImageCount - 1) { + if (!rID) { + O << "\tdefault\n"; + } else { + O << "\tcase " << rID << "\n" ; + } + O << "\tswitch " << mASM->getRegisterName(MI->getOperand(2).getReg()) + << "\n"; + } + for (unsigned sID = 0; sID < SamplerCount; ++sID) { + if (SamplerCount - 1) { + if (!sID) { + O << "\tdefault\n"; + } else { + O << "\tcase " << sID << "\n" ; + } + } + if (internalSampler) { + // Check if sampler has normalized setting. + O << "\tand r0.x, " << tReg2 << ".x, l0.y\n" + << "\tif_logicalz r0.x\n" + << "\tflr " << tReg3 << ", " << tReg3 << "\n" + << "\tsample_resource(" << rID << ")_sampler(" + << sID << ")_coordtype(unnormalized) " + << tReg1 << ", " << tReg3 << " ; " << name.data() << "\n" + << "\telse\n" + << "\tiadd " << tReg1 << ".y, " << tReg1 << ".x, l0.y\n" + << "\titof " << tReg2 << ", cb1[" << tReg1 << ".x].xyz\n" + << "\tmul " << tReg3 << ", " << tReg3 << ", " << tReg2 << "\n" + << "\tflr " << tReg3 << ", " << tReg3 << "\n" + << "\tmul " << tReg3 << ", " << tReg3 << ", cb1[" + << tReg1 << ".y].xyz\n" + << "\tsample_resource(" << rID << ")_sampler(" + << sID << ")_coordtype(normalized) " + << tReg1 << ", " << tReg3 << " ; " << name.data() << "\n" + << "\tendif\n"; + } else { + O << "\tiadd " << tReg1 << ".y, " << tReg1 << ".x, l0.y\n" + // Check if sampler has normalized setting. + << "\tand r0, " << tReg2 << ".x, l0.y\n" + // Convert image dimensions to float. + << "\titof " << tReg4 << ", cb1[" << tReg1 << ".x].xyz\n" + // Move into R0 1 if unnormalized or dimensions if normalized. + << "\tcmov_logical r0, r0, " << tReg4 << ", r1.1111\n" + // Make coordinates unnormalized. + << "\tmul " << tReg3 << ", r0, " << tReg3 << "\n" + // Get linear filtering if set. + << "\tand " << tReg4 << ", " << tReg2 << ".x, l6.x\n" + // Save unnormalized coordinates in R0. + << "\tmov r0, " << tReg3 << "\n" + // Floor the coordinates due to HW incompatibility with precision + // requirements. + << "\tflr " << tReg3 << ", " << tReg3 << "\n" + // get Origianl coordinates (without floor) if linear filtering + << "\tcmov_logical " << tReg3 << ", " << tReg4 + << ".xxxx, r0, " << tReg3 << "\n" + // Normalize the coordinates with multiplying by 1/dimensions + << "\tmul " << tReg3 << ", " << tReg3 << ", cb1[" + << tReg1 << ".y].xyz\n" + << "\tsample_resource(" << rID << ")_sampler(" + << sID << ")_coordtype(normalized) " + << tReg1 << ", " << tReg3 << " ; " << name.data() << "\n"; + } + if (SamplerCount - 1) { + O << "\tbreak\n"; + } + } + if (SamplerCount - 1) { + O << "\tendswitch\n"; + } + if (ImageCount - 1) { + O << "\tbreak\n"; + } + } + if (ImageCount - 1) { + O << "\tendswitch\n"; + } +#endif +} + void +AMDILImageExpansion::expandImageLoad(MachineBasicBlock *mBB, MachineInstr *MI) +{ + uint32_t imageID = getPointerID(MI); + MI->getOperand(1).ChangeToImmediate(imageID); + saveInst = true; +} + void +AMDILImageExpansion::expandImageStore(MachineBasicBlock *mBB, MachineInstr *MI) +{ + uint32_t imageID = getPointerID(MI); + mKM->setOutputInst(); + MI->getOperand(0).ChangeToImmediate(imageID); + saveInst = true; +} + void +AMDILImageExpansion::expandImageParam(MachineBasicBlock *mBB, MachineInstr *MI) +{ + MachineBasicBlock::iterator I = *MI; + uint32_t ID = getPointerID(MI); + DebugLoc DL = MI->getDebugLoc(); + BuildMI(*mBB, I, DL, mTII->get(AMDIL::CBLOAD), + MI->getOperand(0).getReg()) + .addImm(ID) + .addImm(1); +} |