Mercurial > projects > ldc
view dmd/version.c @ 1479:4f7d50c744ed
Rewrite `StructLiteralExp::toElem` to store individual fields instead of
generating a constant to fill the entire struct with a single `store`.
This is much more efficient at compile time (fixing #320) and vastly reduces
the size of the emitted code. Since LLVM no longer needs to keep the data for
all fields in "registers" until the store happens, it should also be more
efficient at run time in cases where the fields aren't assigned with constants.
There's also some code clean-up by removing duplicated logic.
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Sat, 06 Jun 2009 20:16:13 +0200 |
parents | aaade6ded589 |
children |
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// Copyright (c) 1999-2005 by Digital Mars // All Rights Reserved // written by Walter Bright // http://www.digitalmars.com // License for redistribution is by either the Artistic License // in artistic.txt, or the GNU General Public License in gnu.txt. // See the included readme.txt for details. #include <stdio.h> #include <assert.h> #include "root.h" #include "identifier.h" #include "dsymbol.h" #include "cond.h" #include "version.h" #include "module.h" /* ================================================== */ /* DebugSymbol's happen for statements like: * debug = identifier; * debug = integer; */ DebugSymbol::DebugSymbol(Loc loc, Identifier *ident) : Dsymbol(ident) { this->loc = loc; } DebugSymbol::DebugSymbol(Loc loc, unsigned level) : Dsymbol() { this->level = level; this->loc = loc; } Dsymbol *DebugSymbol::syntaxCopy(Dsymbol *s) { assert(!s); DebugSymbol *ds = new DebugSymbol(loc, ident); ds->level = level; return ds; } int DebugSymbol::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) { //printf("DebugSymbol::addMember('%s') %s\n", sd->toChars(), toChars()); Module *m; // Do not add the member to the symbol table, // just make sure subsequent debug declarations work. m = sd->isModule(); if (ident) { if (!m) error("declaration must be at module level"); else { if (findCondition(m->debugidsNot, ident)) error("defined after use"); if (!m->debugids) m->debugids = new Array(); m->debugids->push(ident->toChars()); } } else { if (!m) error("level declaration must be at module level"); else m->debuglevel = level; } return 0; } void DebugSymbol::semantic(Scope *sc) { //printf("DebugSymbol::semantic() %s\n", toChars()); } void DebugSymbol::toCBuffer(OutBuffer *buf, HdrGenState *hgs) { buf->writestring("debug = "); if (ident) buf->writestring(ident->toChars()); else buf->printf("%u", level); buf->writestring(";"); buf->writenl(); } const char *DebugSymbol::kind() { return "debug"; } /* ================================================== */ /* VersionSymbol's happen for statements like: * version = identifier; * version = integer; */ VersionSymbol::VersionSymbol(Loc loc, Identifier *ident) : Dsymbol(ident) { this->loc = loc; } VersionSymbol::VersionSymbol(Loc loc, unsigned level) : Dsymbol() { this->level = level; this->loc = loc; } Dsymbol *VersionSymbol::syntaxCopy(Dsymbol *s) { assert(!s); VersionSymbol *ds = new VersionSymbol(loc, ident); ds->level = level; return ds; } int VersionSymbol::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) { //printf("VersionSymbol::addMember('%s') %s\n", sd->toChars(), toChars()); Module *m; // Do not add the member to the symbol table, // just make sure subsequent debug declarations work. m = sd->isModule(); if (ident) { VersionCondition::checkPredefined(loc, ident->toChars()); if (!m) error("declaration must be at module level"); else { if (findCondition(m->versionidsNot, ident)) error("defined after use"); if (!m->versionids) m->versionids = new Array(); m->versionids->push(ident->toChars()); } } else { if (!m) error("level declaration must be at module level"); else m->versionlevel = level; } return 0; } void VersionSymbol::semantic(Scope *sc) { } void VersionSymbol::toCBuffer(OutBuffer *buf, HdrGenState *hgs) { buf->writestring("version = "); if (ident) buf->writestring(ident->toChars()); else buf->printf("%u", level); buf->writestring(";"); buf->writenl(); } const char *VersionSymbol::kind() { return "version"; }