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gcc/gcc ChangeLog.tree-ssa tree-ssa-ccp.c
- From: law at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: 14 Feb 2003 17:03:27 -0000
- Subject: gcc/gcc ChangeLog.tree-ssa tree-ssa-ccp.c
CVSROOT: /cvs/gcc
Module name: gcc
Branch: tree-ssa-20020619-branch
Changes by: law@gcc.gnu.org 2003-02-14 17:03:27
Modified files:
gcc : ChangeLog.tree-ssa tree-ssa-ccp.c
Log message:
* tree-ssa-ccp.c (def_to_undefined): Add some state transition
sanity checking. Avoid calling set_value if nothing changed.
(def_to_varying): Avoid calling set_value if nothing changed.
(set_lattice_value): Add some state transition sanity checking
for transitions into the CONSTANT state. If the object's
"constant" value has changed to a new constant value, then the
object has a VARYING value.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.tree-ssa.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.233&r2=1.1.2.234
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-ccp.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.48&r2=1.1.2.49