[Bug middle-end/22043] [4.1 Regression] Fields not initialized for automatic structs with flexible array members

["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  2005-08-23 07:28 -------
Subject: Bug 22043

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	jakub@gcc.gnu.org	2005-08-23 07:28:26

Modified files:
	gcc            : ChangeLog expr.c gimplify.c tree-sra.c tree.h 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: 20050613-1.c 

Log message:
	PR tree-optimization/22043
	* tree.h (count_type_elements): Add ALLOW_FLEXARR argument.
	* expr.c (count_type_elements): Add ALLOW_FLEXARR argument.
	If ALLOW_FLEXARR, handle types ending with flexible array member.
	Pass false as second argument to recursive count_type_elements calls.
	(categorize_ctor_elements_1, mostly_zeros_p): Pass false as second
	argument to count_type_elements call.
	* tree-sra.c (decide_block_copy): Likewise.
	* gimplify.c (gimplify_init_constructor): If num_type_elements < 0
	for a constant-sized object, set cleared as well.  Pass true as
	second argument to count_type_elements call.
	
	* gcc.c-torture/execute/20050613-1.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9803&r2=2.9804
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&r1=1.808&r2=1.809
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/gimplify.c.diff?cvsroot=gcc&r1=2.147&r2=2.148
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-sra.c.diff?cvsroot=gcc&r1=2.70&r2=2.71
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.h.diff?cvsroot=gcc&r1=1.753&r2=1.754
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5951&r2=1.5952
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20050613-1.c.diff?cvsroot=gcc&r1=1.1&r2=1.2



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22043