[Bug tree-optimization/18507] block_defs_stack varrray should not be GC'ed

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------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-11-19 18:22 -------
Subject: Bug 18507

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	pinskia@gcc.gnu.org	2004-11-19 18:22:00

Modified files:
	gcc            : tree-flow.h tree-ssa-dom.c tree-into-ssa.c 
	                 ChangeLog 

Log message:
	2004-11-19  Andrew Pinski  <pinskia@physics.uc.edu>
	
	PR tree-opt/18507
	* tree-flow.h (tree2): Typedef because there is already a VEC(tree).
	Define a VEC(tree2) for head.
	(register_new_def): Change second argument to be a VEC(tree2).
	* tree-ssa-dom.c (block_defs_stack): Change to be a VEC(tree2).
	(tree_ssa_dominator_optimize): Initialize block_defs_stack with
	the VEC(tree2) function.  Also free it before returning.
	(dom_opt_initialize_block): Use VEC_safe_push instead of VARRAY_PUSH_TREE
	for block_defs_stack.
	(restore_currdefs_to_original_value): Use VEC_length instead of
	VARRAY_ACTIVE_SIZE. VEC_pop instead of VARRAY_TOP_TREE/VARRAY_POP.
	(dom_opt_finalize_block): Use VEC_safe_push instead of VARRAY_PUSH_TREE
	for block_defs_stack.
	* tree-into-ssa.c (block_defs_stack): Change to be a VEC(tree2).
	(rewrite_initialize_block): Use VEC_safe_push instead of VARRAY_PUSH_TREE
	for block_defs_stack.
	(ssa_register_new_def): Likewise.
	(ssa_rewrite_initialize_block): Likewise.
	(rewrite_finalize_block): Use VEC_length instead of
	VARRAY_ACTIVE_SIZE. VEC_pop instead of VARRAY_TOP_TREE/VARRAY_POP.
	(ssa_rewrite_finalize_block): Likewise.
	(register_new_def): Change second argument to be a VEC(tree2).
	Use VEC_safe_push instead of VARRAY_PUSH_TREE.
	(rewrite_blocks): Initialize block_defs_stack with
	the VEC(tree2) function.  Also free it before returning.
	(rewrite_ssa_into_ssa): Likewise.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&r1=2.66&r2=2.67
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-dom.c.diff?cvsroot=gcc&r1=2.67&r2=2.68
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-into-ssa.c.diff?cvsroot=gcc&r1=2.30&r2=2.31
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6416&r2=2.6417



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18507