------- Comment #13 from uros at gcc dot gnu dot org 2008-05-23 07:53 ------- Subject: Bug 36079
Author: uros Date: Fri May 23 07:53:16 2008 New Revision: 135792 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135792 Log: PR target/36079 * configure.ac: Handle --enable-cld. * configure: Regenerated. * config.gcc: Add USE_IX86_CLD to tm_defines for x86 targets. * config/i386/i386.h (struct machine_function): Add needs_cld field. (ix86_current_function_needs_cld): New define. * config/i386/i386.md (UNSPEC_CLD): New unspec volatile constant. (cld): New isns pattern. (strmov_singleop, rep_mov, strset_singleop, rep_stos, cmpstrnqi_nz_1, cmpstrnqi_1, strlenqi_1): Set ix86_current_function_needs_cld flag. * config/i386/i386.opt (mcld): New option. * config/i386/i386.c (ix86_expand_prologue): Emit cld insn if TARGET_CLD and ix86_current_function_needs_cld. (override_options): Use -mcld by default for 32-bit code if USE_IX86_CLD. * doc/install.texi (Options specification): Document --enable-cld. * doc/invoke.texi (Machine Dependent Options) [i386 and x86-64 Options]: Add -mcld option. (Intel 386 and AMD x86-64 Options): Document -mcld option. Modified: trunk/gcc/ChangeLog trunk/gcc/config.gcc trunk/gcc/config/i386/i386.c trunk/gcc/config/i386/i386.h trunk/gcc/config/i386/i386.md trunk/gcc/config/i386/i386.opt trunk/gcc/configure trunk/gcc/configure.ac trunk/gcc/doc/install.texi trunk/gcc/doc/invoke.texi -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36079