[Bug target/19511] [4.0 Regression] ICE in in reload_cse_simplify_operands, at postreload.c:391

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-01-20 06:47 -------
Subject: Bug 19511

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rth@gcc.gnu.org	2005-01-20 06:47:38

Modified files:
	gcc            : ChangeLog 
	gcc/config/i386: i386.c i386.h i386.md 

Log message:
	PR target/19511
	* config/i386/i386.c (ix86_preferred_reload_class): Return a proper
	subclass of the input class.
	(ix86_secondary_memory_needed): Always true for cross-MMX classes.
	Always true for cross-SSE1 classes.  Rationalize conditionals.
	* config/i386/i386.h (SSE_CLASS_P, MMX_CLASS_P): Use straight equality.
	* config/i386/i386.md (movsi_1): Add MMX/SSE zeros.  Fix alternatives
	for SSE1.  Don't check TARGET_INTER_UNIT_MOVES.
	(movdi_2): Add MMX/SSE zeros.
	(movdi_1_rex64): Likewise.  Don't check TARGET_INTER_UNIT_MOVES.
	(movsf_1): Don't check TARGET_INTER_UNIT_MOVES.
	(zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
	(movsi_1_nointernunit, movdi_1_rex64_nointerunit): Remove.
	(movsf_1_nointerunit, zero_extendsidi2_32_1): Remove.
	(zero_extendsidi2_rex64_1): Remove.
	(MOV0 peephole): Check GENERAL_REG_P.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7195&r2=2.7196
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&r1=1.782&r2=1.783
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.h.diff?cvsroot=gcc&r1=1.418&r2=1.419
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&r1=1.607&r2=1.608



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19511