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view gen/complex.cpp @ 979:523bf4f166bc
Fix some assembler issues:
The assembler was miscompiling "add" (specifically, the "add reg/mem, imm"
variations).
The change that caused this seems to have been made because without it, some
"add"s didn't compile at all.
This patch reverts the previous change, and makes sure assembler operands are
remapped correctly even though the input operands auto-generated due to
updating operations aren't explicitly used.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Wed, 18 Feb 2009 21:46:14 +0100 |
parents | 4adf0f742896 |
children | 3cf0066e6faf |
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#include "gen/llvm.h" #include "mtype.h" #include "declaration.h" #include "gen/complex.h" #include "gen/tollvm.h" #include "gen/llvmhelpers.h" #include "gen/irstate.h" #include "gen/dvalue.h" #include "gen/logger.h" ////////////////////////////////////////////////////////////////////////////////////////// const llvm::StructType* DtoComplexType(Type* type) { Type* t = type->toBasetype(); const LLType* base = DtoComplexBaseType(t); return llvm::StructType::get(base, base, NULL); } const LLType* DtoComplexBaseType(Type* t) { TY ty = t->toBasetype()->ty; const LLType* base; if (ty == Tcomplex32) { return LLType::FloatTy; } else if (ty == Tcomplex64) { return LLType::DoubleTy; } else if (ty == Tcomplex80) { if ((global.params.cpu == ARCHx86) || (global.params.cpu == ARCHx86_64)) return LLType::X86_FP80Ty; else return LLType::DoubleTy; } else { assert(0); } } ////////////////////////////////////////////////////////////////////////////////////////// LLConstant* DtoConstComplex(Type* _ty, long double re, long double im) { TY ty = _ty->toBasetype()->ty; llvm::ConstantFP* fre; llvm::ConstantFP* fim; Type* base = 0; if (ty == Tcomplex32) { base = Type::tfloat32; } else if (ty == Tcomplex64) { base = Type::tfloat64; } else if (ty == Tcomplex80) { base = Type::tfloat80; } std::vector<LLConstant*> inits; inits.push_back(DtoConstFP(base, re)); inits.push_back(DtoConstFP(base, im)); return llvm::ConstantStruct::get(DtoComplexType(_ty), inits); } ////////////////////////////////////////////////////////////////////////////////////////// LLValue* DtoRealPart(DValue* val) { assert(0); return gIR->ir->CreateExtractElement(val->getRVal(), DtoConstUint(0), "tmp"); } ////////////////////////////////////////////////////////////////////////////////////////// LLValue* DtoImagPart(DValue* val) { assert(0); return gIR->ir->CreateExtractElement(val->getRVal(), DtoConstUint(1), "tmp"); } ////////////////////////////////////////////////////////////////////////////////////////// DValue* DtoComplex(Loc& loc, Type* to, DValue* val) { const LLType* complexTy = DtoType(to); Type* baserety; Type* baseimty; TY ty = to->toBasetype()->ty; if (ty == Tcomplex32) { baserety = Type::tfloat32; baseimty = Type::timaginary32; } else if (ty == Tcomplex64) { baserety = Type::tfloat64; baseimty = Type::timaginary64; } else if (ty == Tcomplex80) { baserety = Type::tfloat80; baseimty = Type::timaginary80; } else { assert(0); } LLValue *re, *im; DtoGetComplexParts(loc, to, val, re, im); if(!re) re = LLConstant::getNullValue(DtoType(baserety)); if(!im) im = LLConstant::getNullValue(DtoType(baseimty)); LLValue* res = DtoAggrPair(complexTy, re, im); return new DImValue(to, res); } ////////////////////////////////////////////////////////////////////////////////////////// void DtoComplexSet(LLValue* c, LLValue* re, LLValue* im) { DtoStore(re, DtoGEPi(c,0,0,"tmp")); DtoStore(im, DtoGEPi(c,0,1,"tmp")); } ////////////////////////////////////////////////////////////////////////////////////////// void DtoGetComplexParts(Loc& loc, Type* to, DValue* val, LLValue*& re, LLValue*& im) { const LLType* base = DtoComplexBaseType(to); Type* baserety; Type* baseimty; TY ty = to->toBasetype()->ty; if (ty == Tcomplex32) { baserety = Type::tfloat32; baseimty = Type::timaginary32; } else if (ty == Tcomplex64) { baserety = Type::tfloat64; baseimty = Type::timaginary64; } else if (ty == Tcomplex80) { baserety = Type::tfloat80; baseimty = Type::timaginary80; } else { assert(0); } Type* t = val->getType()->toBasetype(); if (t->iscomplex()) { DValue* v = DtoCastComplex(loc, val, to); if (to->iscomplex()) { re = gIR->ir->CreateExtractValue(v->getRVal(), 0, ".re_part"); im = gIR->ir->CreateExtractValue(v->getRVal(), 1, ".im_part"); } else DtoGetComplexParts(loc, to, v, re, im); } else if (t->isimaginary()) { re = NULL; im = DtoCastFloat(loc, val, baseimty)->getRVal(); } else if (t->isfloating()) { re = DtoCastFloat(loc, val, baserety)->getRVal(); im = NULL; } else if (t->isintegral()) { re = DtoCastInt(loc, val, baserety)->getRVal(); im = NULL; } else { assert(0); } } ////////////////////////////////////////////////////////////////////////////////////////// DValue* DtoComplexAdd(Loc& loc, Type* type, DValue* lhs, DValue* rhs) { llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im; // lhs values DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im); // rhs values DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im); // add up if(lhs_re && rhs_re) res_re = gIR->ir->CreateAdd(lhs_re, rhs_re, "tmp"); else if(lhs_re) res_re = lhs_re; else // either rhs_re or no re at all (then use any) res_re = rhs_re; if(lhs_im && rhs_im) res_im = gIR->ir->CreateAdd(lhs_im, rhs_im, "tmp"); else if(lhs_im) res_im = lhs_im; else // either rhs_im or no im at all (then use any) res_im = rhs_im; LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im); return new DImValue(type, res); } ////////////////////////////////////////////////////////////////////////////////////////// DValue* DtoComplexSub(Loc& loc, Type* type, DValue* lhs, DValue* rhs) { llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im; // lhs values DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im); // rhs values DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im); // add up if(lhs_re && rhs_re) res_re = gIR->ir->CreateSub(lhs_re, rhs_re, "tmp"); else if(lhs_re) res_re = lhs_re; else // either rhs_re or no re at all (then use any) res_re = gIR->ir->CreateNeg(rhs_re, "neg"); if(lhs_im && rhs_im) res_im = gIR->ir->CreateSub(lhs_im, rhs_im, "tmp"); else if(lhs_im) res_im = lhs_im; else // either rhs_im or no im at all (then use any) res_im = gIR->ir->CreateNeg(rhs_im, "neg"); LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im); return new DImValue(type, res); } ////////////////////////////////////////////////////////////////////////////////////////// DValue* DtoComplexMul(Loc& loc, Type* type, DValue* lhs, DValue* rhs) { llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im; // lhs values DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im); // rhs values DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im); // mul up llvm::Value *rere = NULL; llvm::Value *reim = NULL; llvm::Value *imre = NULL; llvm::Value *imim = NULL; if(lhs_re && rhs_re) rere = gIR->ir->CreateMul(lhs_re, rhs_re, "rere_mul"); if(lhs_re && rhs_im) reim = gIR->ir->CreateMul(lhs_re, rhs_im, "reim_mul"); if(lhs_im && rhs_re) imre = gIR->ir->CreateMul(lhs_im, rhs_re, "imre_mul"); if(lhs_im && rhs_im) imim = gIR->ir->CreateMul(lhs_im, rhs_im, "imim_mul"); if(rere && imim) res_re = gIR->ir->CreateSub(rere, imim, "rere_imim_sub"); else if(rere) res_re = rere; else if(imim) res_re = gIR->ir->CreateNeg(imim, "imim_neg"); else res_re = lhs_re ? rhs_re : lhs_re; // null! if(reim && imre) res_im = gIR->ir->CreateAdd(reim, imre, "reim_imre_add"); else if(reim) res_im = reim; else if(imre) res_im = imre; else res_im = lhs_re ? rhs_im : lhs_re; // null! LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im); return new DImValue(type, res); } ////////////////////////////////////////////////////////////////////////////////////////// DValue* DtoComplexDiv(Loc& loc, Type* type, DValue* lhs, DValue* rhs) { llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im; // lhs values DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im); // rhs values DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im); // if divisor is only real, division is simple if(rhs_re && !rhs_im) { if(lhs_re) res_re = gIR->ir->CreateFDiv(lhs_re, rhs_re, "re_divby_re"); else res_re = lhs_re; if(lhs_im) res_im = gIR->ir->CreateFDiv(lhs_im, rhs_re, "im_divby_re"); else res_im = lhs_im; } // if divisor is only imaginary, division is simple too else if(!rhs_re && rhs_im) { if(lhs_re) res_im = gIR->ir->CreateNeg(gIR->ir->CreateFDiv(lhs_re, rhs_im, "re_divby_im"), "neg"); else res_im = lhs_re; if(lhs_im) res_re = gIR->ir->CreateFDiv(lhs_im, rhs_im, "im_divby_im"); else res_re = lhs_im; } // full division else { llvm::Value *tmp1, *tmp2, *denom; if(lhs_re && lhs_im) { tmp1 = gIR->ir->CreateMul(lhs_re, rhs_re, "rere"); tmp2 = gIR->ir->CreateMul(lhs_im, rhs_im, "imim"); res_re = gIR->ir->CreateAdd(tmp1, tmp2, "rere_plus_imim"); tmp1 = gIR->ir->CreateMul(lhs_re, rhs_im, "reim"); tmp2 = gIR->ir->CreateMul(lhs_im, rhs_re, "imre"); res_im = gIR->ir->CreateSub(tmp2, tmp1, "imre_sub_reim"); } else if(lhs_re) { res_re = gIR->ir->CreateMul(lhs_re, rhs_re, "rere"); res_im = gIR->ir->CreateMul(lhs_re, rhs_im, "reim"); res_im = gIR->ir->CreateNeg(res_im); } else if(lhs_im) { res_re = gIR->ir->CreateMul(lhs_im, rhs_im, "imim"); res_im = gIR->ir->CreateMul(lhs_im, rhs_re, "imre"); } else assert(0 && "lhs has neither real nor imaginary part"); tmp1 = gIR->ir->CreateMul(rhs_re, rhs_re, "rhs_resq"); tmp2 = gIR->ir->CreateMul(rhs_im, rhs_im, "rhs_imsq"); denom = gIR->ir->CreateAdd(tmp1, tmp2, "denom"); res_re = gIR->ir->CreateFDiv(res_re, denom, "res_re"); res_im = gIR->ir->CreateFDiv(res_im, denom, "res_im"); } LLValue* res = DtoAggrPair(DtoType(type), res_re, res_im); return new DImValue(type, res); } ////////////////////////////////////////////////////////////////////////////////////////// DValue* DtoComplexNeg(Loc& loc, Type* type, DValue* val) { llvm::Value *a, *b, *re, *im; // values DtoGetComplexParts(loc, type, val, a, b); // neg up assert(a && b); re = gIR->ir->CreateNeg(a, "tmp"); im = gIR->ir->CreateNeg(b, "tmp"); LLValue* res = DtoAggrPair(DtoType(type), re, im); return new DImValue(type, res); } ////////////////////////////////////////////////////////////////////////////////////////// LLValue* DtoComplexEquals(Loc& loc, TOK op, DValue* lhs, DValue* rhs) { Type* type = lhs->getType(); llvm::Value *lhs_re, *lhs_im, *rhs_re, *rhs_im, *res_re, *res_im; // lhs values DtoGetComplexParts(loc, type, lhs, lhs_re, lhs_im); // rhs values DtoGetComplexParts(loc, type, rhs, rhs_re, rhs_im); // select predicate llvm::FCmpInst::Predicate cmpop; if (op == TOKequal) cmpop = llvm::FCmpInst::FCMP_OEQ; else cmpop = llvm::FCmpInst::FCMP_UNE; // (l.re==r.re && l.im==r.im) or (l.re!=r.re || l.im!=r.im) LLValue* b1 = new llvm::FCmpInst(cmpop, lhs_re, rhs_re, "tmp", gIR->scopebb()); LLValue* b2 = new llvm::FCmpInst(cmpop, lhs_im, rhs_im, "tmp", gIR->scopebb()); if (op == TOKequal) return gIR->ir->CreateAnd(b1,b2,"tmp"); else return gIR->ir->CreateOr(b1,b2,"tmp"); } ////////////////////////////////////////////////////////////////////////////////////////// DValue* DtoCastComplex(Loc& loc, DValue* val, Type* _to) { Type* to = _to->toBasetype(); Type* vty = val->getType(); if (to->iscomplex()) { if (vty->size() == to->size()) return val; llvm::Value *re, *im; DtoGetComplexParts(loc, val->getType(), val, re, im); const LLType* toty = DtoComplexBaseType(to); if (to->size() < vty->size()) { re = gIR->ir->CreateFPTrunc(re, toty, "tmp"); im = gIR->ir->CreateFPTrunc(im, toty, "tmp"); } else { re = gIR->ir->CreateFPExt(re, toty, "tmp"); im = gIR->ir->CreateFPExt(im, toty, "tmp"); } LLValue* pair = DtoAggrPair(DtoType(_to), re, im); DValue* rval = new DImValue(_to, pair); // if the value we're casting is not a lvalue, the cast value can't be either if (!val->isLVal()) { return rval; } // unfortunately at this point, the cast value can show up as the lvalue for += and similar expressions. // so we need to maintain the storage return new DLRValue(val, rval); } else if (to->isimaginary()) { // FIXME: this loads both values, even when we only need one LLValue* v = val->getRVal(); LLValue* impart = gIR->ir->CreateExtractValue(v, 1, ".im_part"); DImValue* im = new DImValue(to, impart); return DtoCastFloat(loc, im, to); } else if (to->isfloating()) { // FIXME: this loads both values, even when we only need one LLValue* v = val->getRVal(); LLValue* repart = gIR->ir->CreateExtractValue(v, 0, ".re_part"); DImValue* re = new DImValue(to, repart); return DtoCastFloat(loc, re, to); } else if (to->ty == Tbool) { return new DImValue(_to, DtoComplexEquals(loc, TOKnotequal, val, DtoNullValue(vty))); } else assert(0); }