mirror of
https://github.com/ldc-developers/ldc.git
synced 2025-04-30 23:20:40 +03:00
7a24e12736
This removed quite some clutter that has presumably piled up because LDC is seldom built with a lot of warnings enabled due to DMDFE.
487 lines
15 KiB
C++
487 lines
15 KiB
C++
#include "gen/llvm.h"
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#include "mtype.h"
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#include "declaration.h"
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#include "gen/complex.h"
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#include "gen/tollvm.h"
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#include "gen/llvmhelpers.h"
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#include "gen/irstate.h"
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#include "gen/dvalue.h"
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#include "gen/logger.h"
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//////////////////////////////////////////////////////////////////////////////////////////
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const llvm::StructType* DtoComplexType(Type* type)
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{
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Type* t = type->toBasetype();
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const LLType* base = DtoComplexBaseType(t);
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return llvm::StructType::get(gIR->context(), base, base, NULL);
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}
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const LLType* DtoComplexBaseType(Type* t)
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{
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TY ty = t->toBasetype()->ty;
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if (ty == Tcomplex32) {
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return LLType::getFloatTy(gIR->context());
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}
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else if (ty == Tcomplex64) {
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return LLType::getDoubleTy(gIR->context());
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}
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else if (ty == Tcomplex80) {
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if ((global.params.cpu == ARCHx86) || (global.params.cpu == ARCHx86_64))
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return LLType::getX86_FP80Ty(gIR->context());
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else
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return LLType::getDoubleTy(gIR->context());
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}
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else {
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assert(0);
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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LLConstant* DtoConstComplex(Type* _ty, long double re, long double im)
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{
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TY ty = _ty->toBasetype()->ty;
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Type* base = 0;
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if (ty == Tcomplex32) {
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base = Type::tfloat32;
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}
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else if (ty == Tcomplex64) {
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base = Type::tfloat64;
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}
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else if (ty == Tcomplex80) {
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base = Type::tfloat80;
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}
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std::vector<LLConstant*> inits;
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inits.push_back(DtoConstFP(base, re));
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inits.push_back(DtoConstFP(base, im));
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return llvm::ConstantStruct::get(DtoComplexType(_ty), inits);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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LLValue* DtoRealPart(DValue* val)
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{
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assert(0);
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return gIR->ir->CreateExtractElement(val->getRVal(), DtoConstUint(0), "tmp");
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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LLValue* DtoImagPart(DValue* val)
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{
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assert(0);
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return gIR->ir->CreateExtractElement(val->getRVal(), DtoConstUint(1), "tmp");
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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DValue* DtoComplex(Loc& loc, Type* to, DValue* val)
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{
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const LLType* complexTy = DtoType(to);
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Type* baserety;
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Type* baseimty;
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TY ty = to->toBasetype()->ty;
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if (ty == Tcomplex32) {
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baserety = Type::tfloat32;
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baseimty = Type::timaginary32;
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} else if (ty == Tcomplex64) {
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baserety = Type::tfloat64;
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baseimty = Type::timaginary64;
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} else if (ty == Tcomplex80) {
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baserety = Type::tfloat80;
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baseimty = Type::timaginary80;
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}
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else {
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assert(0);
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}
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LLValue *re, *im;
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DtoGetComplexParts(loc, to, val, re, im);
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if(!re)
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re = LLConstant::getNullValue(DtoType(baserety));
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if(!im)
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im = LLConstant::getNullValue(DtoType(baseimty));
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LLValue* res = DtoAggrPair(complexTy, re, im);
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return new DImValue(to, res);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void DtoComplexSet(LLValue* c, LLValue* re, LLValue* im)
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{
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DtoStore(re, DtoGEPi(c,0,0,"tmp"));
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DtoStore(im, DtoGEPi(c,0,1,"tmp"));
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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void DtoGetComplexParts(Loc& loc, Type* to, DValue* val, LLValue*& re, LLValue*& im)
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{
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Type* baserety;
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Type* baseimty;
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TY ty = to->toBasetype()->ty;
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if (ty == Tcomplex32) {
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baserety = Type::tfloat32;
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baseimty = Type::timaginary32;
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} else if (ty == Tcomplex64) {
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baserety = Type::tfloat64;
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baseimty = Type::timaginary64;
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} else if (ty == Tcomplex80) {
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baserety = Type::tfloat80;
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baseimty = Type::timaginary80;
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}
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else {
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assert(0);
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}
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Type* t = val->getType()->toBasetype();
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if (t->iscomplex()) {
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DValue* v = DtoCastComplex(loc, val, to);
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if (to->iscomplex()) {
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re = gIR->ir->CreateExtractValue(v->getRVal(), 0, ".re_part");
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im = gIR->ir->CreateExtractValue(v->getRVal(), 1, ".im_part");
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} else
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DtoGetComplexParts(loc, to, v, re, im);
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}
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else if (t->isimaginary()) {
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re = NULL;
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im = DtoCastFloat(loc, val, baseimty)->getRVal();
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}
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else if (t->isfloating()) {
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re = DtoCastFloat(loc, val, baserety)->getRVal();
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im = NULL;
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}
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else if (t->isintegral()) {
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re = DtoCastInt(loc, val, baserety)->getRVal();
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im = NULL;
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}
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else {
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assert(0);
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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DValue* DtoComplexAdd(Loc& loc, Type* type, DValue* lhs, DValue* rhs)
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{
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llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im;
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// lhs values
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DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im);
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// rhs values
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DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im);
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// add up
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if(lhs_re && rhs_re)
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res_re = gIR->ir->CreateFAdd(lhs_re, rhs_re, "tmp");
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else if(lhs_re)
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res_re = lhs_re;
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else // either rhs_re or no re at all (then use any)
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res_re = rhs_re;
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if(lhs_im && rhs_im)
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res_im = gIR->ir->CreateFAdd(lhs_im, rhs_im, "tmp");
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else if(lhs_im)
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res_im = lhs_im;
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else // either rhs_im or no im at all (then use any)
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res_im = rhs_im;
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LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im);
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return new DImValue(type, res);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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DValue* DtoComplexSub(Loc& loc, Type* type, DValue* lhs, DValue* rhs)
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{
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llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im;
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// lhs values
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DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im);
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// rhs values
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DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im);
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// add up
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if(lhs_re && rhs_re)
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res_re = gIR->ir->CreateFSub(lhs_re, rhs_re, "tmp");
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else if(lhs_re)
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res_re = lhs_re;
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else // either rhs_re or no re at all (then use any)
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res_re = gIR->ir->CreateFNeg(rhs_re, "neg");
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if(lhs_im && rhs_im)
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res_im = gIR->ir->CreateFSub(lhs_im, rhs_im, "tmp");
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else if(lhs_im)
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res_im = lhs_im;
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else // either rhs_im or no im at all (then use any)
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res_im = gIR->ir->CreateFNeg(rhs_im, "neg");
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LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im);
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return new DImValue(type, res);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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DValue* DtoComplexMul(Loc& loc, Type* type, DValue* lhs, DValue* rhs)
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{
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llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im;
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// lhs values
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DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im);
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// rhs values
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DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im);
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// mul up
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llvm::Value *rere = NULL;
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llvm::Value *reim = NULL;
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llvm::Value *imre = NULL;
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llvm::Value *imim = NULL;
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if(lhs_re && rhs_re)
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rere = gIR->ir->CreateFMul(lhs_re, rhs_re, "rere_mul");
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if(lhs_re && rhs_im)
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reim = gIR->ir->CreateFMul(lhs_re, rhs_im, "reim_mul");
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if(lhs_im && rhs_re)
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imre = gIR->ir->CreateFMul(lhs_im, rhs_re, "imre_mul");
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if(lhs_im && rhs_im)
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imim = gIR->ir->CreateFMul(lhs_im, rhs_im, "imim_mul");
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if(rere && imim)
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res_re = gIR->ir->CreateFSub(rere, imim, "rere_imim_sub");
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else if(rere)
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res_re = rere;
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else if(imim)
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res_re = gIR->ir->CreateFNeg(imim, "imim_neg");
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else
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res_re = lhs_re ? rhs_re : lhs_re; // null!
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if(reim && imre)
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res_im = gIR->ir->CreateFAdd(reim, imre, "reim_imre_add");
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else if(reim)
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res_im = reim;
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else if(imre)
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res_im = imre;
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else
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res_im = lhs_re ? rhs_im : lhs_re; // null!
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LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im);
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return new DImValue(type, res);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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DValue* DtoComplexDiv(Loc& loc, Type* type, DValue* lhs, DValue* rhs)
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{
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llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im;
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// lhs values
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DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im);
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// rhs values
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DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im);
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// if divisor is only real, division is simple
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if(rhs_re && !rhs_im) {
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if(lhs_re)
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res_re = gIR->ir->CreateFDiv(lhs_re, rhs_re, "re_divby_re");
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else
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res_re = lhs_re;
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if(lhs_im)
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res_im = gIR->ir->CreateFDiv(lhs_im, rhs_re, "im_divby_re");
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else
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res_im = lhs_im;
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}
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// if divisor is only imaginary, division is simple too
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else if(!rhs_re && rhs_im) {
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if(lhs_re)
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res_im = gIR->ir->CreateFNeg(gIR->ir->CreateFDiv(lhs_re, rhs_im, "re_divby_im"), "neg");
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else
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res_im = lhs_re;
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if(lhs_im)
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res_re = gIR->ir->CreateFDiv(lhs_im, rhs_im, "im_divby_im");
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else
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res_re = lhs_im;
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}
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// full division
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else {
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llvm::Value *tmp1, *tmp2, *denom;
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if(lhs_re && lhs_im) {
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tmp1 = gIR->ir->CreateFMul(lhs_re, rhs_re, "rere");
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tmp2 = gIR->ir->CreateFMul(lhs_im, rhs_im, "imim");
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res_re = gIR->ir->CreateFAdd(tmp1, tmp2, "rere_plus_imim");
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tmp1 = gIR->ir->CreateFMul(lhs_re, rhs_im, "reim");
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tmp2 = gIR->ir->CreateFMul(lhs_im, rhs_re, "imre");
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res_im = gIR->ir->CreateFSub(tmp2, tmp1, "imre_sub_reim");
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}
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else if(lhs_re) {
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res_re = gIR->ir->CreateFMul(lhs_re, rhs_re, "rere");
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res_im = gIR->ir->CreateFMul(lhs_re, rhs_im, "reim");
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res_im = gIR->ir->CreateFNeg(res_im);
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}
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else if(lhs_im) {
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res_re = gIR->ir->CreateFMul(lhs_im, rhs_im, "imim");
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res_im = gIR->ir->CreateFMul(lhs_im, rhs_re, "imre");
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}
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else
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assert(0 && "lhs has neither real nor imaginary part");
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tmp1 = gIR->ir->CreateFMul(rhs_re, rhs_re, "rhs_resq");
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tmp2 = gIR->ir->CreateFMul(rhs_im, rhs_im, "rhs_imsq");
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denom = gIR->ir->CreateFAdd(tmp1, tmp2, "denom");
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res_re = gIR->ir->CreateFDiv(res_re, denom, "res_re");
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res_im = gIR->ir->CreateFDiv(res_im, denom, "res_im");
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}
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LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im);
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return new DImValue(type, res);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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DValue* DtoComplexRem(Loc& loc, Type* type, DValue* lhs, DValue* rhs)
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{
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llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im, *divisor;
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// lhs values
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DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im);
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// rhs values
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DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im);
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// Divisor can be real or imaginary but not complex
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assert((rhs_re != 0) ^ (rhs_im != 0));
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divisor = rhs_re ? rhs_re : rhs_im;
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res_re = lhs_re ? gIR->ir->CreateFRem(lhs_re, divisor, "tmp") : lhs_re;
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res_im = lhs_re ? gIR->ir->CreateFRem(lhs_im, divisor, "tmp") : lhs_im;
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LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im);
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return new DImValue(type, res);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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DValue* DtoComplexNeg(Loc& loc, Type* type, DValue* val)
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{
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llvm::Value *a, *b, *re, *im;
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// values
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DtoGetComplexParts(loc, type, val, a, b);
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// neg up
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assert(a && b);
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re = gIR->ir->CreateFNeg(a, "tmp");
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im = gIR->ir->CreateFNeg(b, "tmp");
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LLValue* res = DtoAggrPair(DtoType(type), re, im);
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return new DImValue(type, res);
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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LLValue* DtoComplexEquals(Loc& loc, TOK op, DValue* lhs, DValue* rhs)
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{
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Type* type = lhs->getType();
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llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im;
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// lhs values
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DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im);
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// rhs values
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DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im);
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// select predicate
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llvm::FCmpInst::Predicate cmpop;
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if (op == TOKequal || op == TOKidentity)
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cmpop = llvm::FCmpInst::FCMP_OEQ;
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else
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cmpop = llvm::FCmpInst::FCMP_UNE;
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// (l.re==r.re && l.im==r.im) or (l.re!=r.re || l.im!=r.im)
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LLValue* b1 = gIR->ir->CreateFCmp(cmpop, lhs_re, rhs_re, "tmp");
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LLValue* b2 = gIR->ir->CreateFCmp(cmpop, lhs_im, rhs_im, "tmp");
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if (op == TOKequal)
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return gIR->ir->CreateAnd(b1,b2,"tmp");
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else
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return gIR->ir->CreateOr(b1,b2,"tmp");
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}
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//////////////////////////////////////////////////////////////////////////////////////////
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DValue* DtoCastComplex(Loc& loc, DValue* val, Type* _to)
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{
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Type* to = _to->toBasetype();
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Type* vty = val->getType()->toBasetype();
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if (to->iscomplex()) {
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if (vty->size() == to->size())
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return val;
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llvm::Value *re, *im;
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DtoGetComplexParts(loc, val->getType(), val, re, im);
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const LLType* toty = DtoComplexBaseType(to);
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if (to->size() < vty->size()) {
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re = gIR->ir->CreateFPTrunc(re, toty, "tmp");
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im = gIR->ir->CreateFPTrunc(im, toty, "tmp");
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}
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else {
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re = gIR->ir->CreateFPExt(re, toty, "tmp");
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im = gIR->ir->CreateFPExt(im, toty, "tmp");
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}
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LLValue* pair = DtoAggrPair(DtoType(_to), re, im);
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return new DImValue(_to, pair);
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}
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else if (to->isimaginary()) {
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// FIXME: this loads both values, even when we only need one
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LLValue* v = val->getRVal();
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LLValue* impart = gIR->ir->CreateExtractValue(v, 1, ".im_part");
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Type *extractty;
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if (vty->ty == Tcomplex32) {
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extractty = Type::timaginary32;
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} else if (vty->ty == Tcomplex64) {
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extractty = Type::timaginary64;
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} else if (vty->ty == Tcomplex80) {
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extractty = Type::timaginary80;
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}
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DImValue* im = new DImValue(extractty, impart);
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return DtoCastFloat(loc, im, to);
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}
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else if (to->ty == Tbool) {
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return new DImValue(_to, DtoComplexEquals(loc, TOKnotequal, val, DtoNullValue(vty)));
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}
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else if (to->isfloating() || to->isintegral()) {
|
|
// FIXME: this loads both values, even when we only need one
|
|
LLValue* v = val->getRVal();
|
|
LLValue* repart = gIR->ir->CreateExtractValue(v, 0, ".re_part");
|
|
Type *extractty;
|
|
if (vty->ty == Tcomplex32) {
|
|
extractty = Type::tfloat32;
|
|
} else if (vty->ty == Tcomplex64) {
|
|
extractty = Type::tfloat64;
|
|
} else if (vty->ty == Tcomplex80) {
|
|
extractty = Type::tfloat80;
|
|
}
|
|
DImValue* re = new DImValue(extractty, repart);
|
|
return DtoCastFloat(loc, re, to);
|
|
}
|
|
else {
|
|
error(loc, "Don't know how to cast %s to %s", vty->toChars(), to->toChars());
|
|
fatal();
|
|
}
|
|
}
|
|
|