Mercurial > projects > ldc
view dmd/staticassert.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> |
---|---|
date | Sat, 06 Jun 2009 20:16:13 +0200 |
parents | 8026319762be |
children | 1b24e9c7cc26 |
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// Copyright (c) 1999-2007 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 <string.h> #include <assert.h> #include "dsymbol.h" #include "staticassert.h" #include "expression.h" #include "id.h" #include "hdrgen.h" #include "scope.h" #include "template.h" /********************************* AttribDeclaration ****************************/ StaticAssert::StaticAssert(Loc loc, Expression *exp, Expression *msg) : Dsymbol(Id::empty) { this->loc = loc; this->exp = exp; this->msg = msg; } Dsymbol *StaticAssert::syntaxCopy(Dsymbol *s) { StaticAssert *sa; assert(!s); sa = new StaticAssert(loc, exp->syntaxCopy(), msg ? msg->syntaxCopy() : NULL); return sa; } int StaticAssert::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) { return 0; // we didn't add anything } void StaticAssert::semantic(Scope *sc) { } #include "scope.h" #include "template.h" #include "declaration.h" void StaticAssert::semantic2(Scope *sc) { Expression *e; //printf("StaticAssert::semantic2() %s\n", toChars()); e = exp->semantic(sc); e = e->optimize(WANTvalue | WANTinterpret); if (e->isBool(FALSE)) { if (msg) { HdrGenState hgs; OutBuffer buf; msg = msg->semantic(sc); msg = msg->optimize(WANTvalue | WANTinterpret); hgs.console = 1; msg->toCBuffer(&buf, &hgs); error("%s", buf.toChars()); } else error("(%s) is false", exp->toChars()); if(sc->tinst) sc->tinst->printInstantiationTrace(); if (!global.gag) { fatal(); } } else if (!e->isBool(TRUE)) { error("(%s) is not evaluatable at compile time", exp->toChars()); } } int StaticAssert::oneMember(Dsymbol **ps) { //printf("StaticAssert::oneMember())\n"); *ps = NULL; return TRUE; } void StaticAssert::inlineScan() { } void StaticAssert::toObjFile(int multiobj) { } const char *StaticAssert::kind() { return "static assert"; } void StaticAssert::toCBuffer(OutBuffer *buf, HdrGenState *hgs) { buf->writestring(kind()); buf->writeByte('('); exp->toCBuffer(buf, hgs); if (msg) { buf->writeByte(','); msg->toCBuffer(buf, hgs); } buf->writestring(");"); buf->writenl(); }