Mercurial > projects > ldc
view dmd2/utf.h @ 1491:360a8e8eea51
Teach stack promotion to walk the CFG when a potential reuse of an allocation
is found to see if it can actually happen instead of just assuming it will.
This allows it to catch cases like
{{{
int i;
Foo f;
while (cond(i))
f = new Foo(i++);
return f.value;
}}}
where it previously wouldn't because a phi using the allocation would appear in
the condition block to propagate it to the use after the loop.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Thu, 11 Jun 2009 02:04:44 +0200 |
parents | f04dde6e882c |
children |
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// Compiler implementation of the D programming language // utf.h // Copyright (c) 2003-2008 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. #ifndef DMD_UTF_H #define DMD_UTF_H typedef unsigned dchar_t; int utf_isValidDchar(dchar_t c); const char *utf_decodeChar(unsigned char *s, size_t len, size_t *pidx, dchar_t *presult); const char *utf_decodeWchar(unsigned short *s, size_t len, size_t *pidx, dchar_t *presult); const char *utf_validateString(unsigned char *s, size_t len); extern int isUniAlpha(dchar_t); #endif