[Bug optimization/13260] [3.4 Regression] Incorrect optimisation of loop termination condition
cvs-commit at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Thu Dec 4 20:10:00 GMT 2003
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2003-12-04 20:10 -------
Subject: Bug 13260
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: amylaar@gcc.gnu.org 2003-12-04 20:10:29
Modified files:
gcc : ChangeLog
gcc/config/sh : sh-protos.h sh.c sh.h sh.md
Log message:
PR optimization/13260
* sh-protos.h (sh_expand_t_scc): Declare.
* sh.h (PREDICATE_CODES): Add cmpsi_operand.
* sh.c (cmpsi_operand, sh_expand_t_scc): New functions.
* sh.md (cmpsi): Use cmpsi_operand. If T_REG is compared to
something that is not a CONST_INT, copy it into a pseudo register.
(subc): Fix description of new T value.
(slt, sgt, sge, sgtu): Don't clobber T after rtl generation is over.
(sltu, sleu, sgeu): Likewise.
(seq, sne): Likewise. Use sh_expand_t_scc.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.1915&r2=2.1916
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/sh/sh-protos.h.diff?cvsroot=gcc&r1=1.50&r2=1.51
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/sh/sh.c.diff?cvsroot=gcc&r1=1.239&r2=1.240
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/sh/sh.h.diff?cvsroot=gcc&r1=1.227&r2=1.228
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/sh/sh.md.diff?cvsroot=gcc&r1=1.162&r2=1.163
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13260
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