1 /* IA-64 assembly version of the standard strcat() function.
2 This file is part of the GNU C Library.
3 Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
4 Contributed by Dan Pop <Dan.Pop@cern.ch>.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
27 A straightforword implementation: strcpy(dest + strlen(dest), src).
29 Could be marginally optimised by inlining the code of strcpy() and
30 strlen(), to avoid the two function calls. OTOH, by not doing that,
31 we avoid L1I cache pollution (code using strcat() is likely to also
32 use strcpy() and strlen(), so we already have a copy of these functions
46 .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2)
47 alloc save_pfs = ar.pfs, 2, 3, 2, 0
52 br.call.sptk.many b0 = strlen# ;; // rc = strlen(dest);
56 br.call.sptk.many b0 = strcpy# ;; // strcpy(dest + strlen(dest), src)
63 libc_hidden_builtin_def (strcat)