Mercurial > projects > ldc
view dmd2/builtin.c @ 1083:c1e9f612e2e2
Fix for dual operand form of fistp, also make reg ST(0) explicit and fix lindquists
previous code that allowed dual operand form of fstp but dissallowed the single
operand form accidently
author | Kelly Wilson <wilsonk cpsc.ucalgary.ca> |
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date | Tue, 10 Mar 2009 06:23:26 -0600 |
parents | f04dde6e882c |
children | 638d16625da2 |
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// Compiler implementation of the D programming language // 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 <assert.h> #include <math.h> #include "mars.h" #include "declaration.h" #include "attrib.h" #include "expression.h" #include "scope.h" #include "mtype.h" #include "aggregate.h" #include "identifier.h" #include "id.h" #include "module.h" /********************************** * Determine if function is a builtin one. */ enum BUILTIN FuncDeclaration::isBuiltin() { static const char FeZe[] = "FeZe"; // real function(real) //printf("FuncDeclaration::isBuiltin() %s\n", toChars()); if (builtin == BUILTINunknown) { builtin = BUILTINnot; if (parent && parent->isModule()) { if (parent->ident == Id::math && parent->parent && parent->parent->ident == Id::std && !parent->parent->parent) { if (strcmp(type->deco, FeZe) == 0) { if (ident == Id::sin) builtin = BUILTINsin; else if (ident == Id::cos) builtin = BUILTINcos; else if (ident == Id::tan) builtin = BUILTINtan; else if (ident == Id::_sqrt) builtin = BUILTINsqrt; else if (ident == Id::fabs) builtin = BUILTINfabs; //printf("builtin = %d\n", builtin); } } } } return builtin; } /************************************** * Evaluate builtin function. * Return result; NULL if cannot evaluate it. */ Expression *eval_builtin(enum BUILTIN builtin, Expressions *arguments) { assert(arguments && arguments->dim); Expression *arg0 = (Expression *)arguments->data[0]; Expression *e = NULL; switch (builtin) { case BUILTINsin: if (arg0->op == TOKfloat64) e = new RealExp(0, sinl(arg0->toReal()), Type::tfloat80); break; case BUILTINcos: if (arg0->op == TOKfloat64) e = new RealExp(0, cosl(arg0->toReal()), Type::tfloat80); break; case BUILTINtan: if (arg0->op == TOKfloat64) e = new RealExp(0, tanl(arg0->toReal()), Type::tfloat80); break; case BUILTINsqrt: if (arg0->op == TOKfloat64) e = new RealExp(0, sqrtl(arg0->toReal()), Type::tfloat80); break; case BUILTINfabs: if (arg0->op == TOKfloat64) e = new RealExp(0, fabsl(arg0->toReal()), Type::tfloat80); break; } return e; }