[Bug optimization/13169] asm using r30 or r31 confuses global_alloc

["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  2004-01-31 12:46 -------
Subject: Bug 13169

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	hammer-3_3-branch
Changes by:	amodra@gcc.gnu.org	2004-01-31 12:46:04

Modified files:
	gcc            : ChangeLog.hammer basic-block.h regs.h final.c 
	                 flow.c global.c 

Log message:
	Backport from mainline.
	2003-12-19  James E Wilson  <wilson@specifixinc.com>
	* flow.c (mark_set_regs, case PARALLEL): Scan loop forwards.
	Add case for ASM_OPERANDS.
	* global.c (global_alloc): Set regs_ever_live for regs_asm_clobbered
	registers.
	
	2003-12-06  Alan Modra  <amodra@bigpond.net.au>
	PR 13169
	* basic-block.h (PROP_ASM_SCAN): Define.
	* final.c (regs_asm_clobbered): New array.
	* regs.h (regs_asm_clobbered): Declare.
	* flow.c (life_analysis): Init it.
	(mark_set_regs): Set PROP_ASM_SCAN for asms.
	(mark_set_1): Set regs_asm_clobbered.
	* global.c (global_alloc): Don't set eliminable_regset when
	regs_asm_clobbered.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.hammer.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.1.2.301&r2=1.1.2.302
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/basic-block.h.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.161.2.11&r2=1.161.2.12
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/regs.h.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.26.2.1&r2=1.26.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/final.c.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.270.2.7&r2=1.270.2.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/flow.c.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.540.2.8&r2=1.540.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/global.c.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.86.2.2&r2=1.86.2.3



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13169