[Bug rtl-optimization/17853] [3.4/4.0 Regression] -O2 ICE for MMX testcase

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

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-10-09 19:28 -------
Subject: Bug 17853

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	sayle@gcc.gnu.org	2004-10-09 19:27:55

Modified files:
	gcc            : ChangeLog simplify-rtx.c 
	gcc/doc        : rtl.texi tm.texi 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: i386-mmx-5.c 

Log message:
	2004-10-09  Roger Sayle  <roger@eyesopen.com>
	
	PR rtl-optimization/17853
	* simplify-rtx.c (simplify_relational_operation): Correct comment.
	Reorganize handling of comparison operations with floating point
	results (always return 0.0 even without FLOAT_STORE_FLAG_VALUE).
	Likewise, introduce support for comparison operations with vector
	result types, introducing a new VECTOR_STORE_FLAG_VALUE target macro.
	
	* doc/rtl.texi: Document new VECTOR_STORE_FLAG_VALUE target macro.
	* doc/tm.texi: Likewise.
	
	2004-10-09  Stuart Hastings  <stuart@apple.com>
	Roger Sayle  <roger@eyesopen.com>
	
	PR rtl-optimization/17853
	* gcc.dg/i386-mmx-5.c: New testcase.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5821&r2=2.5822
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&r1=1.204&r2=1.205
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/rtl.texi.diff?cvsroot=gcc&r1=1.72&r2=1.73
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/tm.texi.diff?cvsroot=gcc&r1=1.378&r2=1.379
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4421&r2=1.4422
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/i386-mmx-5.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853