[Bug rtl-optimization/11001] global register %edi versus string builtins

["froydnj at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #13 from froydnj at gcc dot gnu dot org  2007-10-12 16:12 -------
Subject: Bug 11001

Author: froydnj
Date: Fri Oct 12 16:12:45 2007
New Revision: 129265

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129265
Log:
gcc/
        PR 11001
        * config/i386/i386.md (strmov): Check for esi and edi usage.
        * config/i386/i386.c (decide_alg): Check whether we can use a
        rep prefix and adjust algorithm choice accordingly.
        (ix86_expand_strlen): Check for eax, ecx, and edi usage.

gcc/testsuite/
        PR 11001
        * gcc.target/i386/pr11001-strlen-1.c: New testcase.
        * gcc.target/i386/pr11001-strlen-2.c: New testcase.
        * gcc.target/i386/pr11001-strlen-3.c: New testcase.
        * gcc.target/i386/pr11001-memset-1.c: New testcase.
        * gcc.target/i386/pr11001-memset-2.c: New testcase.
        * gcc.target/i386/pr11001-memset-3.c: New testcase.
        * gcc.target/i386/pr11001-memcpy-1.c: New testcase.
        * gcc.target/i386/pr11001-memcpy-2.c: New testcase.
        * gcc.target/i386/pr11001-memcpy-3.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr11001-memcpy-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr11001-memcpy-2.c
    trunk/gcc/testsuite/gcc.target/i386/pr11001-memcpy-3.c
    trunk/gcc/testsuite/gcc.target/i386/pr11001-memset-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr11001-memset-2.c
    trunk/gcc/testsuite/gcc.target/i386/pr11001-memset-3.c
    trunk/gcc/testsuite/gcc.target/i386/pr11001-strlen-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr11001-strlen-2.c
    trunk/gcc/testsuite/gcc.target/i386/pr11001-strlen-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11001