mirror of https://github.com/AxioDL/metaforce.git
714 lines
24 KiB
C++
714 lines
24 KiB
C++
#include "HECL/HECL.hpp"
|
|
#include "HECL/Frontend.hpp"
|
|
|
|
/* Combined lexer and semantic analysis system */
|
|
|
|
namespace HECL
|
|
{
|
|
namespace Frontend
|
|
{
|
|
|
|
static IR::Instruction::ArithmeticOpType ArithType(int aChar)
|
|
{
|
|
switch (aChar)
|
|
{
|
|
case '+':
|
|
return IR::Instruction::ArithmeticOpAdd;
|
|
case '-':
|
|
return IR::Instruction::ArithmeticOpSubtract;
|
|
case '*':
|
|
return IR::Instruction::ArithmeticOpMultiply;
|
|
case '/':
|
|
return IR::Instruction::ArithmeticOpDivide;
|
|
default:
|
|
return IR::Instruction::ArithmeticOpNone;
|
|
}
|
|
}
|
|
|
|
void Lexer::ReconnectArithmetic(OperationNode* sn, OperationNode** lastSub, OperationNode** newSub) const
|
|
{
|
|
sn->m_sub = sn->m_prev;
|
|
sn->m_prev = nullptr;
|
|
sn->m_sub->m_prev = nullptr;
|
|
|
|
sn->m_sub->m_next = sn->m_next;
|
|
sn->m_next = sn->m_next->m_next;
|
|
sn->m_sub->m_next->m_prev = sn->m_sub;
|
|
sn->m_sub->m_next->m_next = nullptr;
|
|
|
|
if (*lastSub)
|
|
{
|
|
(*lastSub)->m_next = sn;
|
|
sn->m_prev = *lastSub;
|
|
}
|
|
*lastSub = sn;
|
|
|
|
if (!*newSub)
|
|
*newSub = sn;
|
|
}
|
|
|
|
void Lexer::PrintChain(const Lexer::OperationNode* begin, const Lexer::OperationNode* end)
|
|
{
|
|
for (const Lexer::OperationNode* n = begin ; n != end ; n = n->m_next)
|
|
{
|
|
printf("%3d %s %s\n", n->m_tok.m_location.col, n->m_tok.typeString(),
|
|
n->m_tok.m_tokenString.c_str());
|
|
}
|
|
}
|
|
|
|
void Lexer::PrintTree(const Lexer::OperationNode* node, int indent)
|
|
{
|
|
for (const Lexer::OperationNode* n = node ; n ; n = n->m_next)
|
|
{
|
|
for (int i=0 ; i<indent ; ++i)
|
|
printf(" ");
|
|
printf("%3d %s %s\n", n->m_tok.m_location.col, n->m_tok.typeString(),
|
|
n->m_tok.m_tokenString.c_str());
|
|
if (n->m_sub)
|
|
PrintTree(n->m_sub, indent + 1);
|
|
}
|
|
}
|
|
|
|
void Lexer::reset()
|
|
{
|
|
m_root = nullptr;
|
|
m_pool.clear();
|
|
}
|
|
|
|
void Lexer::consumeAllTokens(Parser& parser)
|
|
{
|
|
reset();
|
|
Parser::Token firstTok = parser.consumeToken();
|
|
if (firstTok.m_type != Parser::TokenSourceBegin)
|
|
{
|
|
m_diag.reportLexerErr(firstTok.m_location, "expected start token");
|
|
return;
|
|
}
|
|
|
|
m_pool.emplace_front(std::move(firstTok));
|
|
Lexer::OperationNode* firstNode = &m_pool.front();
|
|
Lexer::OperationNode* lastNode = firstNode;
|
|
|
|
/* Build linked-list of nodes parsed in-order */
|
|
{
|
|
std::vector<SourceLocation> funcStack;
|
|
std::vector<SourceLocation> groupStack;
|
|
while (lastNode->m_tok.m_type != Parser::TokenSourceEnd)
|
|
{
|
|
Parser::Token tok = parser.consumeToken();
|
|
switch (tok.m_type)
|
|
{
|
|
case Parser::TokenEvalGroupStart:
|
|
groupStack.push_back(tok.m_location);
|
|
break;
|
|
case Parser::TokenEvalGroupEnd:
|
|
if (groupStack.empty())
|
|
{
|
|
m_diag.reportLexerErr(tok.m_location, "unbalanced group detected");
|
|
return;
|
|
}
|
|
groupStack.pop_back();
|
|
break;
|
|
case Parser::TokenFunctionStart:
|
|
funcStack.push_back(tok.m_location);
|
|
break;
|
|
case Parser::TokenFunctionEnd:
|
|
if (funcStack.empty())
|
|
{
|
|
m_diag.reportLexerErr(tok.m_location, "unbalanced function detected");
|
|
return;
|
|
}
|
|
funcStack.pop_back();
|
|
break;
|
|
case Parser::TokenSourceEnd:
|
|
case Parser::TokenNumLiteral:
|
|
case Parser::TokenVectorSwizzle:
|
|
case Parser::TokenFunctionArgDelim:
|
|
case Parser::TokenArithmeticOp:
|
|
break;
|
|
default:
|
|
m_diag.reportLexerErr(tok.m_location, "invalid token");
|
|
return;
|
|
}
|
|
m_pool.emplace_front(std::move(tok));
|
|
lastNode->m_next = &m_pool.front();
|
|
m_pool.front().m_prev = lastNode;
|
|
lastNode = &m_pool.front();
|
|
}
|
|
|
|
/* Ensure functions and groups are balanced */
|
|
if (funcStack.size())
|
|
{
|
|
m_diag.reportLexerErr(funcStack.back(), "unclosed function detected");
|
|
return;
|
|
}
|
|
if (groupStack.size())
|
|
{
|
|
m_diag.reportLexerErr(groupStack.back(), "unclosed group detected");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Ensure first non-start node is a function */
|
|
if (firstNode->m_next->m_tok.m_type != Parser::TokenFunctionStart)
|
|
{
|
|
m_diag.reportLexerErr(firstNode->m_tok.m_location, "expected root function");
|
|
return;
|
|
}
|
|
|
|
/* Organize marked function args into implicit groups */
|
|
for (Lexer::OperationNode* n = firstNode ; n != lastNode ; n = n->m_next)
|
|
{
|
|
if (n->m_tok.m_type == Parser::TokenFunctionStart)
|
|
{
|
|
if (n->m_next->m_tok.m_type != Parser::TokenFunctionEnd)
|
|
{
|
|
if (n->m_next->m_tok.m_type == Parser::TokenFunctionArgDelim)
|
|
{
|
|
m_diag.reportLexerErr(n->m_next->m_tok.m_location, "empty function arg");
|
|
return;
|
|
}
|
|
m_pool.emplace_front(std::move(
|
|
Parser::Token(Parser::TokenEvalGroupStart, n->m_next->m_tok.m_location)));
|
|
Lexer::OperationNode* grp = &m_pool.front();
|
|
grp->m_next = n->m_next;
|
|
grp->m_prev = n;
|
|
n->m_next->m_prev = grp;
|
|
n->m_next = grp;
|
|
}
|
|
}
|
|
else if (n->m_tok.m_type == Parser::TokenFunctionEnd)
|
|
{
|
|
if (n->m_prev->m_tok.m_type != Parser::TokenFunctionStart)
|
|
{
|
|
m_pool.emplace_front(std::move(
|
|
Parser::Token(Parser::TokenEvalGroupEnd, n->m_tok.m_location)));
|
|
Lexer::OperationNode* grp = &m_pool.front();
|
|
grp->m_next = n;
|
|
grp->m_prev = n->m_prev;
|
|
n->m_prev->m_next = grp;
|
|
n->m_prev = grp;
|
|
}
|
|
}
|
|
else if (n->m_tok.m_type == Parser::TokenFunctionArgDelim)
|
|
{
|
|
if (n->m_next->m_tok.m_type == Parser::TokenFunctionArgDelim ||
|
|
n->m_next->m_tok.m_type == Parser::TokenFunctionEnd)
|
|
{
|
|
m_diag.reportLexerErr(n->m_next->m_tok.m_location, "empty function arg");
|
|
return;
|
|
}
|
|
|
|
m_pool.emplace_front(std::move(
|
|
Parser::Token(Parser::TokenEvalGroupEnd, n->m_tok.m_location)));
|
|
Lexer::OperationNode* egrp = &m_pool.front();
|
|
|
|
m_pool.emplace_front(std::move(
|
|
Parser::Token(Parser::TokenEvalGroupStart, n->m_next->m_tok.m_location)));
|
|
Lexer::OperationNode* sgrp = &m_pool.front();
|
|
|
|
egrp->m_next = sgrp;
|
|
sgrp->m_prev = egrp;
|
|
|
|
sgrp->m_next = n->m_next;
|
|
egrp->m_prev = n->m_prev;
|
|
n->m_next->m_prev = sgrp;
|
|
n->m_prev->m_next = egrp;
|
|
}
|
|
}
|
|
|
|
/* Organize marked groups into tree-hierarchy */
|
|
{
|
|
std::vector<Lexer::OperationNode*> groupStack;
|
|
for (Lexer::OperationNode* n = firstNode ; n != lastNode ; n = n->m_next)
|
|
{
|
|
if (n->m_tok.m_type == Parser::TokenEvalGroupStart)
|
|
groupStack.push_back(n);
|
|
else if (n->m_tok.m_type == Parser::TokenEvalGroupEnd)
|
|
{
|
|
Lexer::OperationNode* start = groupStack.back();
|
|
groupStack.pop_back();
|
|
if (n->m_prev == start)
|
|
{
|
|
m_diag.reportLexerErr(start->m_tok.m_location, "empty group");
|
|
return;
|
|
}
|
|
start->m_sub = start->m_next;
|
|
start->m_next = n->m_next;
|
|
if (n->m_next)
|
|
n->m_next->m_prev = start;
|
|
n->m_prev->m_next = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Organize functions into tree-hierarchy */
|
|
for (Lexer::OperationNode& n : m_pool)
|
|
{
|
|
if (n.m_tok.m_type == Parser::TokenFunctionStart)
|
|
{
|
|
for (Lexer::OperationNode* sn = n.m_next ; sn ; sn = sn->m_next)
|
|
{
|
|
if (sn->m_tok.m_type == Parser::TokenFunctionEnd)
|
|
{
|
|
n.m_sub = n.m_next;
|
|
if (n.m_next == sn)
|
|
n.m_sub = nullptr;
|
|
n.m_next = sn->m_next;
|
|
if (sn->m_next)
|
|
sn->m_next->m_prev = &n;
|
|
if (n.m_sub)
|
|
n.m_sub->m_prev = nullptr;
|
|
if (sn->m_prev)
|
|
sn->m_prev->m_next = nullptr;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Organize vector swizzles into tree-hierarchy */
|
|
for (Lexer::OperationNode& n : m_pool)
|
|
{
|
|
if (n.m_tok.m_type == Parser::TokenVectorSwizzle)
|
|
{
|
|
if (n.m_prev->m_tok.m_type != Parser::TokenFunctionStart)
|
|
{
|
|
m_diag.reportLexerErr(n.m_tok.m_location,
|
|
"vector swizzles may only follow functions");
|
|
return;
|
|
}
|
|
Lexer::OperationNode* func = n.m_prev;
|
|
n.m_sub = func;
|
|
n.m_prev = func->m_prev;
|
|
func->m_prev->m_next = &n;
|
|
func->m_next = nullptr;
|
|
func->m_prev = nullptr;
|
|
}
|
|
}
|
|
|
|
/* Ensure evaluation groups have proper arithmetic usage */
|
|
for (Lexer::OperationNode& n : m_pool)
|
|
{
|
|
if (n.m_tok.m_type == Parser::TokenEvalGroupStart)
|
|
{
|
|
int idx = 0;
|
|
for (Lexer::OperationNode* sn = n.m_sub ; sn ; sn = sn->m_next, ++idx)
|
|
{
|
|
if ((sn->m_tok.m_type == Parser::TokenArithmeticOp && !(idx & 1)) ||
|
|
(sn->m_tok.m_type != Parser::TokenArithmeticOp && (idx & 1)))
|
|
{
|
|
m_diag.reportLexerErr(sn->m_tok.m_location, "improper arithmetic expression");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Organize arithmetic usage into tree-hierarchy */
|
|
for (Lexer::OperationNode& n : m_pool)
|
|
{
|
|
if (n.m_tok.m_type == Parser::TokenEvalGroupStart)
|
|
{
|
|
Lexer::OperationNode* newSub = nullptr;
|
|
Lexer::OperationNode* lastSub = nullptr;
|
|
for (Lexer::OperationNode* sn = n.m_sub ; sn ; sn = sn->m_next)
|
|
{
|
|
if (sn->m_tok.m_type == Parser::TokenArithmeticOp)
|
|
{
|
|
IR::Instruction::ArithmeticOpType op = ArithType(sn->m_tok.m_tokenInt);
|
|
if (op == IR::Instruction::ArithmeticOpMultiply ||
|
|
op == IR::Instruction::ArithmeticOpDivide)
|
|
ReconnectArithmetic(sn, &lastSub, &newSub);
|
|
}
|
|
}
|
|
for (Lexer::OperationNode* sn = n.m_sub ; sn ; sn = sn->m_next)
|
|
{
|
|
if (sn->m_tok.m_type == Parser::TokenArithmeticOp)
|
|
{
|
|
IR::Instruction::ArithmeticOpType op = ArithType(sn->m_tok.m_tokenInt);
|
|
if (op == IR::Instruction::ArithmeticOpAdd ||
|
|
op == IR::Instruction::ArithmeticOpSubtract)
|
|
ReconnectArithmetic(sn, &lastSub, &newSub);
|
|
}
|
|
}
|
|
if (newSub)
|
|
n.m_sub = newSub;
|
|
}
|
|
}
|
|
|
|
if (HECL::VerbosityLevel > 1)
|
|
{
|
|
printf("%s\n", m_diag.getSource().c_str());
|
|
PrintTree(firstNode);
|
|
printf("\n");
|
|
}
|
|
|
|
/* Done! */
|
|
m_root = firstNode->m_next;
|
|
}
|
|
|
|
void Lexer::EmitVec3(IR& ir, const Lexer::OperationNode* funcNode, IR::RegID target) const
|
|
{
|
|
/* Optimization case: if empty call, emit zero imm load */
|
|
const Lexer::OperationNode* gn = funcNode->m_sub;
|
|
if (!gn)
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, funcNode->m_tok.m_location);
|
|
ir.m_instructions.back().m_loadImm.m_immVec = {};
|
|
return;
|
|
}
|
|
|
|
/* Optimization case: if all numeric literals, emit vector imm load */
|
|
bool opt = true;
|
|
const Parser::Token* imms[3];
|
|
for (int i=0 ; i<3 ; ++i)
|
|
{
|
|
if (!gn->m_sub || gn->m_sub->m_tok.m_type != Parser::TokenNumLiteral)
|
|
{
|
|
opt = false;
|
|
break;
|
|
}
|
|
imms[i] = &gn->m_sub->m_tok;
|
|
gn = gn->m_next;
|
|
}
|
|
if (opt)
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, funcNode->m_tok.m_location);
|
|
atVec4f& vec = ir.m_instructions.back().m_loadImm.m_immVec;
|
|
vec.vec[0] = imms[0]->m_tokenFloat;
|
|
vec.vec[1] = imms[1]->m_tokenFloat;
|
|
vec.vec[2] = imms[2]->m_tokenFloat;
|
|
vec.vec[3] = 1.0;
|
|
return;
|
|
}
|
|
|
|
/* Otherwise treat as normal function */
|
|
RecursiveFuncCompile(ir, funcNode, target);
|
|
}
|
|
|
|
void Lexer::EmitVec4(IR& ir, const Lexer::OperationNode* funcNode, IR::RegID target) const
|
|
{
|
|
/* Optimization case: if empty call, emit zero imm load */
|
|
const Lexer::OperationNode* gn = funcNode->m_sub;
|
|
if (!gn)
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, funcNode->m_tok.m_location);
|
|
ir.m_instructions.back().m_loadImm.m_immVec = {};
|
|
return;
|
|
}
|
|
|
|
/* Optimization case: if all numeric literals, emit vector imm load */
|
|
bool opt = true;
|
|
const Parser::Token* imms[4];
|
|
for (int i=0 ; i<4 ; ++i)
|
|
{
|
|
if (!gn->m_sub || gn->m_sub->m_tok.m_type != Parser::TokenNumLiteral)
|
|
{
|
|
opt = false;
|
|
break;
|
|
}
|
|
imms[i] = &gn->m_sub->m_tok;
|
|
gn = gn->m_next;
|
|
}
|
|
if (opt)
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, funcNode->m_tok.m_location);
|
|
atVec4f& vec = ir.m_instructions.back().m_loadImm.m_immVec;
|
|
vec.vec[0] = imms[0]->m_tokenFloat;
|
|
vec.vec[1] = imms[1]->m_tokenFloat;
|
|
vec.vec[2] = imms[2]->m_tokenFloat;
|
|
vec.vec[3] = imms[3]->m_tokenFloat;
|
|
return;
|
|
}
|
|
|
|
/* Otherwise treat as normal function */
|
|
RecursiveFuncCompile(ir, funcNode, target);
|
|
}
|
|
|
|
void Lexer::EmitArithmetic(IR& ir, const Lexer::OperationNode* arithNode, IR::RegID target) const
|
|
{
|
|
/* Evaluate operands */
|
|
atVec4f* opt[2] = {nullptr};
|
|
size_t instCount = ir.m_instructions.size();
|
|
const Lexer::OperationNode* on = arithNode->m_sub;
|
|
IR::RegID tgt = target;
|
|
size_t argInsts[2];
|
|
for (int i=0 ; i<2 ; ++i, ++tgt)
|
|
{
|
|
const Parser::Token& tok = on->m_tok;
|
|
switch (tok.m_type)
|
|
{
|
|
case Parser::TokenFunctionStart:
|
|
if (!tok.m_tokenString.compare("vec3"))
|
|
EmitVec3(ir, on, tgt);
|
|
else if (!tok.m_tokenString.compare("vec4"))
|
|
EmitVec4(ir, on, tgt);
|
|
else
|
|
RecursiveFuncCompile(ir, on, tgt);
|
|
break;
|
|
case Parser::TokenEvalGroupStart:
|
|
RecursiveGroupCompile(ir, on, tgt);
|
|
break;
|
|
case Parser::TokenNumLiteral:
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, arithNode->m_tok.m_location);
|
|
IR::Instruction& inst = ir.m_instructions.back();
|
|
inst.m_target = tgt;
|
|
inst.m_loadImm.m_immVec.vec[0] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[1] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[2] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[3] = tok.m_tokenFloat;
|
|
break;
|
|
}
|
|
case Parser::TokenVectorSwizzle:
|
|
EmitVectorSwizzle(ir, on, tgt);
|
|
break;
|
|
default:
|
|
m_diag.reportCompileErr(tok.m_location, "invalid lexer node for IR");
|
|
break;
|
|
};
|
|
argInsts[i] = ir.m_instructions.size() - 1;
|
|
if (ir.m_instructions.back().m_op == IR::OpLoadImm)
|
|
opt[i] = &ir.m_instructions.back().m_loadImm.m_immVec;
|
|
on = on->m_next;
|
|
}
|
|
|
|
/* Optimization case: if both operands imm load, pre-evalulate */
|
|
if (opt[0] && opt[1] && (ir.m_instructions.size() - instCount == 2))
|
|
{
|
|
atVec4f eval;
|
|
switch (ArithType(arithNode->m_tok.m_tokenInt))
|
|
{
|
|
case IR::Instruction::ArithmeticOpAdd:
|
|
eval.vec[0] = opt[0]->vec[0] + opt[1]->vec[0];
|
|
eval.vec[1] = opt[0]->vec[1] + opt[1]->vec[1];
|
|
eval.vec[2] = opt[0]->vec[2] + opt[1]->vec[2];
|
|
eval.vec[3] = opt[0]->vec[3] + opt[1]->vec[3];
|
|
break;
|
|
case IR::Instruction::ArithmeticOpSubtract:
|
|
eval.vec[0] = opt[0]->vec[0] - opt[1]->vec[0];
|
|
eval.vec[1] = opt[0]->vec[1] - opt[1]->vec[1];
|
|
eval.vec[2] = opt[0]->vec[2] - opt[1]->vec[2];
|
|
eval.vec[3] = opt[0]->vec[3] - opt[1]->vec[3];
|
|
break;
|
|
case IR::Instruction::ArithmeticOpMultiply:
|
|
eval.vec[0] = opt[0]->vec[0] * opt[1]->vec[0];
|
|
eval.vec[1] = opt[0]->vec[1] * opt[1]->vec[1];
|
|
eval.vec[2] = opt[0]->vec[2] * opt[1]->vec[2];
|
|
eval.vec[3] = opt[0]->vec[3] * opt[1]->vec[3];
|
|
break;
|
|
case IR::Instruction::ArithmeticOpDivide:
|
|
eval.vec[0] = opt[0]->vec[0] / opt[1]->vec[0];
|
|
eval.vec[1] = opt[0]->vec[1] / opt[1]->vec[1];
|
|
eval.vec[2] = opt[0]->vec[2] / opt[1]->vec[2];
|
|
eval.vec[3] = opt[0]->vec[3] / opt[1]->vec[3];
|
|
break;
|
|
default:
|
|
m_diag.reportCompileErr(arithNode->m_tok.m_location, "invalid arithmetic type");
|
|
break;
|
|
}
|
|
ir.m_instructions.pop_back();
|
|
ir.m_instructions.pop_back();
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, arithNode->m_tok.m_location);
|
|
IR::Instruction& inst = ir.m_instructions.back();
|
|
inst.m_target = target;
|
|
inst.m_loadImm.m_immVec = eval;
|
|
}
|
|
else
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpArithmetic, arithNode->m_tok.m_location);
|
|
IR::Instruction& inst = ir.m_instructions.back();
|
|
inst.m_target = target;
|
|
inst.m_arithmetic.m_instIdxs[0] = argInsts[0];
|
|
inst.m_arithmetic.m_instIdxs[1] = argInsts[1];
|
|
inst.m_arithmetic.m_op = ArithType(arithNode->m_tok.m_tokenInt);
|
|
if (tgt > ir.m_regCount)
|
|
ir.m_regCount = tgt;
|
|
}
|
|
}
|
|
|
|
static int SwizzleCompIdx(char aChar, Diagnostics& diag, const SourceLocation& loc)
|
|
{
|
|
switch (aChar)
|
|
{
|
|
case 'x':
|
|
case 'r':
|
|
return 0;
|
|
case 'y':
|
|
case 'g':
|
|
return 1;
|
|
case 'z':
|
|
case 'b':
|
|
return 2;
|
|
case 'w':
|
|
case 'a':
|
|
return 3;
|
|
default:
|
|
diag.reportCompileErr(loc, "invalid swizzle char %c", aChar);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void Lexer::EmitVectorSwizzle(IR& ir, const Lexer::OperationNode* swizNode, IR::RegID target) const
|
|
{
|
|
const std::string& str = swizNode->m_tok.m_tokenString;
|
|
if (str.size() != 1 && str.size() != 3 && str.size() != 4)
|
|
m_diag.reportCompileErr(swizNode->m_tok.m_location, "%d component swizzles not supported", int(str.size()));
|
|
|
|
size_t instCount = ir.m_instructions.size();
|
|
const Lexer::OperationNode* on = swizNode->m_sub;
|
|
const Parser::Token& tok = on->m_tok;
|
|
switch (tok.m_type)
|
|
{
|
|
case Parser::TokenFunctionStart:
|
|
if (!tok.m_tokenString.compare("vec3"))
|
|
EmitVec3(ir, on, target);
|
|
else if (!tok.m_tokenString.compare("vec4"))
|
|
EmitVec4(ir, on, target);
|
|
else
|
|
RecursiveFuncCompile(ir, on, target);
|
|
break;
|
|
case Parser::TokenEvalGroupStart:
|
|
RecursiveGroupCompile(ir, on, target);
|
|
break;
|
|
case Parser::TokenNumLiteral:
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, swizNode->m_tok.m_location);
|
|
IR::Instruction& inst = ir.m_instructions.back();
|
|
inst.m_target = target;
|
|
inst.m_loadImm.m_immVec.vec[0] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[1] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[2] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[3] = tok.m_tokenFloat;
|
|
break;
|
|
}
|
|
case Parser::TokenVectorSwizzle:
|
|
EmitVectorSwizzle(ir, on, target);
|
|
break;
|
|
default:
|
|
m_diag.reportCompileErr(tok.m_location, "invalid lexer node for IR");
|
|
break;
|
|
};
|
|
|
|
/* Optimization case: if operand imm load, pre-evalulate */
|
|
if (ir.m_instructions.back().m_op == IR::OpLoadImm && (ir.m_instructions.size() - instCount == 1))
|
|
{
|
|
atVec4f* opt = &ir.m_instructions.back().m_loadImm.m_immVec;
|
|
const SourceLocation& loc = ir.m_instructions.back().m_loc;
|
|
atVec4f eval;
|
|
switch (str.size())
|
|
{
|
|
case 1:
|
|
eval = {opt->vec[SwizzleCompIdx(str[0], m_diag, loc)]};
|
|
break;
|
|
case 3:
|
|
eval.vec[0] = opt->vec[SwizzleCompIdx(str[0], m_diag, loc)];
|
|
eval.vec[1] = opt->vec[SwizzleCompIdx(str[1], m_diag, loc)];
|
|
eval.vec[2] = opt->vec[SwizzleCompIdx(str[2], m_diag, loc)];
|
|
eval.vec[3] = 1.0;
|
|
break;
|
|
case 4:
|
|
eval.vec[0] = opt->vec[SwizzleCompIdx(str[0], m_diag, loc)];
|
|
eval.vec[1] = opt->vec[SwizzleCompIdx(str[1], m_diag, loc)];
|
|
eval.vec[2] = opt->vec[SwizzleCompIdx(str[2], m_diag, loc)];
|
|
eval.vec[3] = opt->vec[SwizzleCompIdx(str[3], m_diag, loc)];
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ir.m_instructions.pop_back();
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, swizNode->m_tok.m_location);
|
|
IR::Instruction& inst = ir.m_instructions.back();
|
|
inst.m_target = target;
|
|
inst.m_loadImm.m_immVec = eval;
|
|
}
|
|
else
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpSwizzle, swizNode->m_tok.m_location);
|
|
IR::Instruction& inst = ir.m_instructions.back();
|
|
inst.m_swizzle.m_instIdx = ir.m_instructions.size() - 2;
|
|
inst.m_target = target;
|
|
for (int i=0 ; i<str.size() ; ++i)
|
|
inst.m_swizzle.m_idxs[i] = SwizzleCompIdx(str[i], m_diag, swizNode->m_tok.m_location);
|
|
}
|
|
}
|
|
|
|
void Lexer::RecursiveGroupCompile(IR& ir, const Lexer::OperationNode* groupNode, IR::RegID target) const
|
|
{
|
|
IR::RegID tgt = target;
|
|
for (const Lexer::OperationNode* sn = groupNode->m_sub ; sn ; sn = sn->m_next, ++tgt)
|
|
{
|
|
const Parser::Token& tok = sn->m_tok;
|
|
switch (tok.m_type)
|
|
{
|
|
case Parser::TokenFunctionStart:
|
|
if (!tok.m_tokenString.compare("vec3"))
|
|
EmitVec3(ir, sn, tgt);
|
|
else if (!tok.m_tokenString.compare("vec4"))
|
|
EmitVec4(ir, sn, tgt);
|
|
else
|
|
RecursiveFuncCompile(ir, sn, tgt);
|
|
break;
|
|
case Parser::TokenEvalGroupStart:
|
|
RecursiveGroupCompile(ir, sn, tgt);
|
|
break;
|
|
case Parser::TokenNumLiteral:
|
|
{
|
|
ir.m_instructions.emplace_back(IR::OpLoadImm, tok.m_location);
|
|
IR::Instruction& inst = ir.m_instructions.back();
|
|
inst.m_target = tgt;
|
|
inst.m_loadImm.m_immVec.vec[0] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[1] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[2] = tok.m_tokenFloat;
|
|
inst.m_loadImm.m_immVec.vec[3] = tok.m_tokenFloat;
|
|
break;
|
|
}
|
|
case Parser::TokenArithmeticOp:
|
|
EmitArithmetic(ir, sn, tgt);
|
|
break;
|
|
case Parser::TokenVectorSwizzle:
|
|
EmitVectorSwizzle(ir, sn, tgt);
|
|
break;
|
|
default:
|
|
m_diag.reportCompileErr(tok.m_location, "invalid lexer node for IR");
|
|
break;
|
|
};
|
|
}
|
|
if (tgt > ir.m_regCount)
|
|
ir.m_regCount = tgt;
|
|
}
|
|
|
|
void Lexer::RecursiveFuncCompile(IR& ir, const Lexer::OperationNode* funcNode, IR::RegID target) const
|
|
{
|
|
IR::RegID tgt = target;
|
|
std::vector<size_t> instIdxs;
|
|
for (const Lexer::OperationNode* gn = funcNode->m_sub ; gn ; gn = gn->m_next, ++tgt)
|
|
{
|
|
RecursiveGroupCompile(ir, gn, tgt);
|
|
instIdxs.push_back(ir.m_instructions.size() - 1);
|
|
}
|
|
ir.m_instructions.emplace_back(IR::OpCall, funcNode->m_tok.m_location);
|
|
IR::Instruction& inst = ir.m_instructions.back();
|
|
inst.m_call.m_name = funcNode->m_tok.m_tokenString;
|
|
inst.m_call.m_argInstIdxs = std::move(instIdxs);
|
|
inst.m_target = target;
|
|
if (tgt > ir.m_regCount)
|
|
ir.m_regCount = tgt;
|
|
}
|
|
|
|
IR Lexer::compileIR() const
|
|
{
|
|
if (!m_root)
|
|
m_diag.reportCompileErr(SourceLocation(), "unable to compile HECL-IR for invalid source");
|
|
|
|
IR ir;
|
|
RecursiveFuncCompile(ir, m_root, 0);
|
|
return ir;
|
|
}
|
|
|
|
}
|
|
}
|
|
|