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|
#include "llvmtgsi.h"
#include "instructions.h"
#include "storage.h"
#include "pipe/p_context.h"
#include "pipe/tgsi/exec/tgsi_exec.h"
#include "pipe/tgsi/exec/tgsi_token.h"
#include "pipe/tgsi/exec/tgsi_build.h"
#include "pipe/tgsi/exec/tgsi_util.h"
#include "pipe/tgsi/exec/tgsi_parse.h"
#include "pipe/tgsi/exec/tgsi_dump.h"
//#include "pipe/tgsi/tgsi_platform.h"
#include <llvm/Module.h>
#include <llvm/CallingConv.h>
#include <llvm/Constants.h>
#include <llvm/DerivedTypes.h>
#include <llvm/Instructions.h>
#include <llvm/ModuleProvider.h>
#include <llvm/Pass.h>
#include <llvm/PassManager.h>
#include <llvm/ParameterAttributes.h>
#include <llvm/Support/PatternMatch.h>
#include <llvm/ExecutionEngine/JIT.h>
#include <llvm/ExecutionEngine/Interpreter.h>
#include <llvm/ExecutionEngine/GenericValue.h>
#include <llvm/Support/MemoryBuffer.h>
#include <llvm/LinkAllPasses.h>
#include <llvm/Analysis/Verifier.h>
#include <llvm/Analysis/LoopPass.h>
#include <llvm/Target/TargetData.h>
#include <llvm/Bitcode/ReaderWriter.h>
#include <sstream>
#include <fstream>
#include <iostream>
struct ga_llvm_prog {
void *module;
void *function;
int num_consts;
int id;
};
using namespace llvm;
#include "llvm_base_shader.cpp"
static int GLOBAL_ID = 0;
static inline void addPass(PassManager &PM, Pass *P) {
// Add the pass to the pass manager...
PM.add(P);
}
static inline void AddStandardCompilePasses(PassManager &PM) {
PM.add(createVerifierPass()); // Verify that input is correct
addPass(PM, createLowerSetJmpPass()); // Lower llvm.setjmp/.longjmp
// If the -strip-debug command line option was specified, do it.
//if (StripDebug)
// addPass(PM, createStripSymbolsPass(true));
addPass(PM, createRaiseAllocationsPass()); // call %malloc -> malloc inst
addPass(PM, createCFGSimplificationPass()); // Clean up disgusting code
addPass(PM, createPromoteMemoryToRegisterPass());// Kill useless allocas
addPass(PM, createGlobalOptimizerPass()); // Optimize out global vars
addPass(PM, createGlobalDCEPass()); // Remove unused fns and globs
addPass(PM, createIPConstantPropagationPass());// IP Constant Propagation
addPass(PM, createDeadArgEliminationPass()); // Dead argument elimination
addPass(PM, createInstructionCombiningPass()); // Clean up after IPCP & DAE
addPass(PM, createCFGSimplificationPass()); // Clean up after IPCP & DAE
addPass(PM, createPruneEHPass()); // Remove dead EH info
//if (!DisableInline)
addPass(PM, createFunctionInliningPass()); // Inline small functions
addPass(PM, createArgumentPromotionPass()); // Scalarize uninlined fn args
addPass(PM, createTailDuplicationPass()); // Simplify cfg by copying code
addPass(PM, createInstructionCombiningPass()); // Cleanup for scalarrepl.
addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
addPass(PM, createScalarReplAggregatesPass()); // Break up aggregate allocas
addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
addPass(PM, createCondPropagationPass()); // Propagate conditionals
addPass(PM, createTailCallEliminationPass()); // Eliminate tail calls
addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
addPass(PM, createReassociatePass()); // Reassociate expressions
addPass(PM, createLoopRotatePass());
addPass(PM, createLICMPass()); // Hoist loop invariants
addPass(PM, createLoopUnswitchPass()); // Unswitch loops.
addPass(PM, createLoopIndexSplitPass()); // Index split loops.
addPass(PM, createInstructionCombiningPass()); // Clean up after LICM/reassoc
addPass(PM, createIndVarSimplifyPass()); // Canonicalize indvars
addPass(PM, createLoopUnrollPass()); // Unroll small loops
addPass(PM, createInstructionCombiningPass()); // Clean up after the unroller
addPass(PM, createGVNPass()); // Remove redundancies
addPass(PM, createSCCPPass()); // Constant prop with SCCP
// Run instcombine after redundancy elimination to exploit opportunities
// opened up by them.
addPass(PM, createInstructionCombiningPass());
addPass(PM, createCondPropagationPass()); // Propagate conditionals
addPass(PM, createDeadStoreEliminationPass()); // Delete dead stores
addPass(PM, createAggressiveDCEPass()); // SSA based 'Aggressive DCE'
addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
addPass(PM, createSimplifyLibCallsPass()); // Library Call Optimizations
addPass(PM, createDeadTypeEliminationPass()); // Eliminate dead types
addPass(PM, createConstantMergePass()); // Merge dup global constants
}
static void
translate_declaration(llvm::Module *module,
struct tgsi_full_declaration *decl,
struct tgsi_full_declaration *fd)
{
/* i think this is going to be a noop */
}
static void
translate_immediate(llvm::Module *module,
struct tgsi_full_immediate *imm)
{
}
static void
translate_instruction(llvm::Module *module,
Storage *storage,
Instructions *instr,
struct tgsi_full_instruction *inst,
struct tgsi_full_instruction *fi)
{
llvm::Value *inputs[4];
inputs[0] = 0;
inputs[1] = 0;
inputs[2] = 0;
inputs[3] = 0;
for (int i = 0; i < inst->Instruction.NumSrcRegs; ++i) {
struct tgsi_full_src_register *src = &inst->FullSrcRegisters[i];
llvm::Value *val = 0;
if (src->SrcRegister.File == TGSI_FILE_CONSTANT) {
val = storage->constElement(src->SrcRegister.Index);
} else if (src->SrcRegister.File == TGSI_FILE_INPUT) {
val = storage->inputElement(src->SrcRegister.Index);
} else if (src->SrcRegister.File == TGSI_FILE_TEMPORARY) {
val = storage->tempElement(src->SrcRegister.Index);
} else {
fprintf(stderr, "ERROR: not support llvm source\n");
return;
}
if (src->SrcRegister.Extended) {
if (src->SrcRegisterExtSwz.ExtSwizzleX != TGSI_EXTSWIZZLE_X ||
src->SrcRegisterExtSwz.ExtSwizzleY != TGSI_EXTSWIZZLE_Y ||
src->SrcRegisterExtSwz.ExtSwizzleZ != TGSI_EXTSWIZZLE_Z ||
src->SrcRegisterExtSwz.ExtSwizzleW != TGSI_EXTSWIZZLE_W) {
int swizzle = 0;
if (src->SrcRegisterExtSwz.ExtSwizzleX != TGSI_EXTSWIZZLE_X)
swizzle = src->SrcRegisterExtSwz.ExtSwizzleX * 1000;
else
swizzle = src->SrcRegister.SwizzleX * 1000;
if (src->SrcRegisterExtSwz.ExtSwizzleY != TGSI_EXTSWIZZLE_Y)
swizzle += src->SrcRegisterExtSwz.ExtSwizzleY * 100;
else
swizzle += src->SrcRegister.SwizzleY * 100;
if (src->SrcRegisterExtSwz.ExtSwizzleZ != TGSI_EXTSWIZZLE_Z)
swizzle += src->SrcRegisterExtSwz.ExtSwizzleZ * 10;
else
swizzle += src->SrcRegister.SwizzleZ * 10;
if (src->SrcRegisterExtSwz.ExtSwizzleW != TGSI_EXTSWIZZLE_W)
swizzle += src->SrcRegisterExtSwz.ExtSwizzleW * 1;
else
swizzle += src->SrcRegister.SwizzleW * 1;
/*fprintf(stderr, "EXT XXXXXXXX swizzle x = %d\n", swizzle);*/
val = storage->shuffleVector(val, swizzle);
}
} else if (src->SrcRegister.SwizzleX != TGSI_SWIZZLE_X ||
src->SrcRegister.SwizzleY != TGSI_SWIZZLE_Y ||
src->SrcRegister.SwizzleZ != TGSI_SWIZZLE_Z ||
src->SrcRegister.SwizzleW != TGSI_SWIZZLE_W) {
int swizzle = src->SrcRegister.SwizzleX * 1000;
swizzle += src->SrcRegister.SwizzleY * 100;
swizzle += src->SrcRegister.SwizzleZ * 10;
swizzle += src->SrcRegister.SwizzleW * 1;
/*fprintf(stderr, "XXXXXXXX swizzle = %d\n", swizzle);*/
val = storage->shuffleVector(val, swizzle);
}
inputs[i] = val;
}
/*if (inputs[0])
instr->printVector(inputs[0]);
if (inputs[1])
instr->printVector(inputs[1]);*/
llvm::Value *out = 0;
switch (inst->Instruction.Opcode) {
case TGSI_OPCODE_ARL:
break;
case TGSI_OPCODE_MOV: {
out = inputs[0];
}
break;
case TGSI_OPCODE_LIT: {
out = instr->lit(inputs[0]);
}
break;
case TGSI_OPCODE_RCP: {
out = instr->rcp(inputs[0]);
}
break;
case TGSI_OPCODE_RSQ: {
out = instr->rsq(inputs[0]);
}
break;
case TGSI_OPCODE_EXP:
break;
case TGSI_OPCODE_LOG:
break;
case TGSI_OPCODE_MUL: {
out = instr->mul(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_ADD: {
out = instr->add(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_DP3: {
out = instr->dp3(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_DP4: {
out = instr->dp4(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_DST: {
out = instr->dst(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_MIN: {
out = instr->min(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_MAX: {
out = instr->max(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_SLT: {
out = instr->slt(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_SGE: {
out = instr->sge(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_MAD: {
out = instr->madd(inputs[0], inputs[1], inputs[2]);
}
break;
case TGSI_OPCODE_SUB: {
out = instr->sub(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_LERP:
break;
case TGSI_OPCODE_CND:
break;
case TGSI_OPCODE_CND0:
break;
case TGSI_OPCODE_DOT2ADD:
break;
case TGSI_OPCODE_INDEX:
break;
case TGSI_OPCODE_NEGATE:
break;
case TGSI_OPCODE_FRAC: {
out = instr->frc(inputs[0]);
}
break;
case TGSI_OPCODE_CLAMP:
break;
case TGSI_OPCODE_FLOOR: {
out = instr->floor(inputs[0]);
}
break;
case TGSI_OPCODE_ROUND:
break;
case TGSI_OPCODE_EXPBASE2: {
out = instr->ex2(inputs[0]);
}
break;
case TGSI_OPCODE_LOGBASE2: {
out = instr->lg2(inputs[0]);
}
break;
case TGSI_OPCODE_POWER: {
out = instr->pow(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_CROSSPRODUCT:
break;
case TGSI_OPCODE_MULTIPLYMATRIX:
break;
case TGSI_OPCODE_ABS:
break;
case TGSI_OPCODE_RCC:
break;
case TGSI_OPCODE_DPH: {
out = instr->dph(inputs[0], inputs[1]);
}
break;
case TGSI_OPCODE_COS:
break;
case TGSI_OPCODE_DDX:
break;
case TGSI_OPCODE_DDY:
break;
case TGSI_OPCODE_KILP:
break;
case TGSI_OPCODE_PK2H:
break;
case TGSI_OPCODE_PK2US:
break;
case TGSI_OPCODE_PK4B:
break;
case TGSI_OPCODE_PK4UB:
break;
case TGSI_OPCODE_RFL:
break;
case TGSI_OPCODE_SEQ:
break;
case TGSI_OPCODE_SFL:
break;
case TGSI_OPCODE_SGT:
break;
case TGSI_OPCODE_SIN:
break;
case TGSI_OPCODE_SLE:
break;
case TGSI_OPCODE_SNE:
break;
case TGSI_OPCODE_STR:
break;
case TGSI_OPCODE_TEX:
break;
case TGSI_OPCODE_TXD:
break;
case TGSI_OPCODE_TXP:
break;
case TGSI_OPCODE_UP2H:
break;
case TGSI_OPCODE_UP2US:
break;
case TGSI_OPCODE_UP4B:
break;
case TGSI_OPCODE_UP4UB:
break;
case TGSI_OPCODE_X2D:
break;
case TGSI_OPCODE_ARA:
break;
case TGSI_OPCODE_ARR:
break;
case TGSI_OPCODE_BRA:
break;
case TGSI_OPCODE_CAL:
break;
case TGSI_OPCODE_RET:
break;
case TGSI_OPCODE_SSG:
break;
case TGSI_OPCODE_CMP:
break;
case TGSI_OPCODE_SCS:
break;
case TGSI_OPCODE_TXB:
break;
case TGSI_OPCODE_NRM:
break;
case TGSI_OPCODE_DIV:
break;
case TGSI_OPCODE_DP2:
break;
case TGSI_OPCODE_TXL:
break;
case TGSI_OPCODE_BRK:
break;
case TGSI_OPCODE_IF:
break;
case TGSI_OPCODE_LOOP:
break;
case TGSI_OPCODE_REP:
break;
case TGSI_OPCODE_ELSE:
break;
case TGSI_OPCODE_ENDIF:
break;
case TGSI_OPCODE_ENDLOOP:
break;
case TGSI_OPCODE_ENDREP:
break;
case TGSI_OPCODE_PUSHA:
break;
case TGSI_OPCODE_POPA:
break;
case TGSI_OPCODE_CEIL:
break;
case TGSI_OPCODE_I2F:
break;
case TGSI_OPCODE_NOT:
break;
case TGSI_OPCODE_TRUNC:
break;
case TGSI_OPCODE_SHL:
break;
case TGSI_OPCODE_SHR:
break;
case TGSI_OPCODE_AND:
break;
case TGSI_OPCODE_OR:
break;
case TGSI_OPCODE_MOD:
break;
case TGSI_OPCODE_XOR:
break;
case TGSI_OPCODE_SAD:
break;
case TGSI_OPCODE_TXF:
break;
case TGSI_OPCODE_TXQ:
break;
case TGSI_OPCODE_CONT:
break;
case TGSI_OPCODE_EMIT:
break;
case TGSI_OPCODE_ENDPRIM:
break;
case TGSI_OPCODE_BGNLOOP2:
break;
case TGSI_OPCODE_BGNSUB:
break;
case TGSI_OPCODE_ENDLOOP2:
break;
case TGSI_OPCODE_ENDSUB:
break;
case TGSI_OPCODE_NOISE1:
break;
case TGSI_OPCODE_NOISE2:
break;
case TGSI_OPCODE_NOISE3:
break;
case TGSI_OPCODE_NOISE4:
break;
case TGSI_OPCODE_NOP:
break;
case TGSI_OPCODE_TEXBEM:
break;
case TGSI_OPCODE_TEXBEML:
break;
case TGSI_OPCODE_TEXREG2AR:
break;
case TGSI_OPCODE_TEXM3X2PAD:
break;
case TGSI_OPCODE_TEXM3X2TEX:
break;
case TGSI_OPCODE_TEXM3X3PAD:
break;
case TGSI_OPCODE_TEXM3X3TEX:
break;
case TGSI_OPCODE_TEXM3X3SPEC:
break;
case TGSI_OPCODE_TEXM3X3VSPEC:
break;
case TGSI_OPCODE_TEXREG2GB:
break;
case TGSI_OPCODE_TEXREG2RGB:
break;
case TGSI_OPCODE_TEXDP3TEX:
break;
case TGSI_OPCODE_TEXDP3:
break;
case TGSI_OPCODE_TEXM3X3:
break;
case TGSI_OPCODE_TEXM3X2DEPTH:
break;
case TGSI_OPCODE_TEXDEPTH:
break;
case TGSI_OPCODE_BEM:
break;
case TGSI_OPCODE_M4X3:
break;
case TGSI_OPCODE_M3X4:
break;
case TGSI_OPCODE_M3X3:
break;
case TGSI_OPCODE_M3X2:
break;
case TGSI_OPCODE_NRM4:
break;
case TGSI_OPCODE_CALLNZ:
break;
case TGSI_OPCODE_IFC:
break;
case TGSI_OPCODE_BREAKC:
break;
case TGSI_OPCODE_KIL:
break;
case TGSI_OPCODE_END:
return;
break;
default:
fprintf(stderr, "ERROR: Unknown opcode %d\n",
inst->Instruction.Opcode);
assert(0);
break;
}
if (!out) {
fprintf(stderr, "ERROR: unsupported opcode %d\n",
inst->Instruction.Opcode);
assert(!"Unsupported opcode");
}
switch( inst->Instruction.Saturate ) {
case TGSI_SAT_NONE:
break;
case TGSI_SAT_ZERO_ONE:
/*TXT( "_SAT" );*/
break;
case TGSI_SAT_MINUS_PLUS_ONE:
/*TXT( "_SAT[-1,1]" );*/
break;
default:
assert( 0 );
}
for (int i = 0; i < inst->Instruction.NumDstRegs; ++i) {
struct tgsi_full_dst_register *dst = &inst->FullDstRegisters[i];
if (dst->DstRegister.File == TGSI_FILE_OUTPUT) {
storage->store(dst->DstRegister.Index, out, dst->DstRegister.WriteMask);
} else if (dst->DstRegister.File == TGSI_FILE_TEMPORARY) {
storage->setTempElement(dst->DstRegister.Index, out, dst->DstRegister.WriteMask);
} else {
fprintf(stderr, "ERROR: unsupported LLVM destination!");
}
}
}
static llvm::Module *
tgsi_to_llvm(struct ga_llvm_prog *prog, const struct tgsi_token *tokens)
{
llvm::Module *mod = createBaseShader();
struct tgsi_parse_context parse;
struct tgsi_full_instruction fi;
struct tgsi_full_declaration fd;
Function* shader = mod->getFunction("execute_shader");
std::ostringstream stream;
stream << "execute_shader";
stream << prog->id;
std::string func_name = stream.str();
shader->setName(func_name.c_str());
Function::arg_iterator args = shader->arg_begin();
Value *ptr_OUT = args++;
ptr_OUT->setName("OUT");
Value *ptr_IN = args++;
ptr_IN->setName("IN");
Value *ptr_CONST = args++;
ptr_CONST->setName("CONST");
BasicBlock *label_entry = new BasicBlock("entry", shader, 0);
tgsi_parse_init(&parse, tokens);
fi = tgsi_default_full_instruction();
fd = tgsi_default_full_declaration();
Storage storage(label_entry, ptr_OUT, ptr_IN, ptr_CONST);
Instructions instr(mod, shader, label_entry);
while(!tgsi_parse_end_of_tokens(&parse)) {
tgsi_parse_token(&parse);
switch (parse.FullToken.Token.Type) {
case TGSI_TOKEN_TYPE_DECLARATION:
translate_declaration(mod,
&parse.FullToken.FullDeclaration,
&fd);
break;
case TGSI_TOKEN_TYPE_IMMEDIATE:
translate_immediate(mod,
&parse.FullToken.FullImmediate);
break;
case TGSI_TOKEN_TYPE_INSTRUCTION:
translate_instruction(mod, &storage, &instr,
&parse.FullToken.FullInstruction,
&fi);
break;
default:
assert(0);
}
}
new ReturnInst(label_entry);
tgsi_parse_free(&parse);
prog->num_consts = storage.numConsts();
return mod;
}
struct ga_llvm_prog *
ga_llvm_from_tgsi(struct pipe_context *pipe, const struct tgsi_token *tokens)
{
std::cout << "Creating llvm from: " <<std::endl;
++GLOBAL_ID;
struct ga_llvm_prog *ga_llvm =
(struct ga_llvm_prog *)malloc(sizeof(struct ga_llvm_prog));
ga_llvm->id = GLOBAL_ID;
tgsi_dump(tokens, 0);
llvm::Module *mod = tgsi_to_llvm(ga_llvm, tokens);
/* Run optimization passes over it */
PassManager passes;
passes.add(new TargetData(mod));
AddStandardCompilePasses(passes);
passes.run(*mod);
llvm::ExistingModuleProvider *mp = new llvm::ExistingModuleProvider(mod);
llvm::ExecutionEngine *ee = 0;
if (!pipe->llvm_execution_engine) {
ee = llvm::ExecutionEngine::create(mp, false);
pipe->llvm_execution_engine = ee;
} else {
ee = (llvm::ExecutionEngine*)pipe->llvm_execution_engine;
ee->addModuleProvider(mp);
}
ga_llvm->module = mod;
Function *func = mod->getFunction("run_vertex_shader");
ga_llvm->function = ee->getPointerToFunctionOrStub(func);
ga_llvm_prog_dump(ga_llvm, 0);
return ga_llvm;
}
void ga_llvm_prog_delete(struct ga_llvm_prog *prog)
{
llvm::Module *mod = static_cast<llvm::Module*>(prog->module);
delete mod;
prog->module = 0;
prog->function = 0;
free(prog);
}
typedef void (*vertex_shader_runner)(float (*ainputs)[PIPE_MAX_SHADER_INPUTS][4],
float (*dests)[PIPE_MAX_SHADER_INPUTS][4],
float (*aconsts)[4],
int num_vertices,
int num_inputs,
int num_attribs,
int num_consts);
int ga_llvm_prog_exec(struct ga_llvm_prog *prog,
float (*inputs)[PIPE_MAX_SHADER_INPUTS][4],
float (*dests)[PIPE_MAX_SHADER_INPUTS][4],
float (*consts)[4],
int num_vertices,
int num_inputs,
int num_attribs)
{
vertex_shader_runner runner = reinterpret_cast<vertex_shader_runner>(prog->function);
runner(inputs, dests, consts, num_vertices, num_inputs,
num_attribs, prog->num_consts);
return 0;
}
void ga_llvm_prog_dump(struct ga_llvm_prog *prog, const char *file_prefix)
{
llvm::Module *mod;
if (!prog || !prog->module)
return;
mod = static_cast<llvm::Module*>(prog->module);
if (file_prefix) {
std::ostringstream stream;
stream << file_prefix;
stream << prog->id;
stream << ".ll";
std::string name = stream.str();
std::ofstream out(name.c_str());
if (!out) {
std::cerr<<"Can't open file : "<<stream.str()<<std::endl;;
return;
}
out << (*mod);
out.close();
} else {
std::cout<<"; ---------- Start shader "<<prog->id<<std::endl;
std::cout<<*mod<<std::endl;
std::cout<<"; ---------- End shader "<<prog->id<<std::endl;
}
}
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