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re PR middle-end/53849 (ICE: in add_referenced_var_1, at tree-dfa.c:567 with -O2 -ftree-parallelize-loops=2 -fno-tree-loop-im) 

2012-07-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/53849
	* tree-cfg.c (move_stmt_op): Only call add_referenced_var
	for duplicated locals.  Use add_referenced_var_1 to avoid
	pushing/popping cfun.

	* gcc.dg/pr53849.c: New testcase.

From-SVN: r189255
This commit is contained in:
Richard Guenther 2012-07-04 12:09:09 +00:00 committed by Richard Biener
parent 463d5aa029
commit e1b6bbea37
4 changed files with 29 additions and 7 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2012-07-04 Richard Guenther <rguenther@suse.de>
PR tree-optimization/53849
* tree-cfg.c (move_stmt_op): Only call add_referenced_var
for duplicated locals. Use add_referenced_var_1 to avoid
pushing/popping cfun.
2012-07-04 Kai Tietz <ktietz@redhat.com>
* config/i386/winnt.c (i386_pe_reloc_rw_mask): New function.

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2012-07-04 Richard Guenther <rguenther@suse.de>
PR tree-optimization/53849
* gcc.dg/pr53849.c: New testcase.
2012-07-03 Jakub Jelinek <jakub@redhat.com>
PR c++/53812

13
gcc/testsuite/gcc.dg/pr53849.c Normal file
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@ -0,0 +1,13 @@
/* { dg-do compile } */
/* { dg-options "-O2 -ftree-parallelize-loops=2 -fno-tree-loop-im" } */
extern int *b, *e[8], d;
void
foo (void)
{
int i;
for (i = 0; i < 8; ++i)
while (--d)
e[i] = 0;
}

11
gcc/tree-cfg.c
View File

@ -6023,14 +6023,11 @@ move_stmt_op (tree *tp, int *walk_subtrees, void *data)
if ((TREE_CODE (t) == VAR_DECL
&& !is_global_var (t))
|| TREE_CODE (t) == CONST_DECL)
replace_by_duplicate_decl (tp, p->vars_map, p->to_context);
if (SSA_VAR_P (t)
&& gimple_in_ssa_p (cfun))
{
push_cfun (DECL_STRUCT_FUNCTION (p->to_context));
add_referenced_var (*tp);
pop_cfun ();
struct function *to_fn = DECL_STRUCT_FUNCTION (p->to_context);
replace_by_duplicate_decl (tp, p->vars_map, p->to_context);
if (gimple_referenced_vars (to_fn))
add_referenced_var_1 (*tp, to_fn);
}
}
*walk_subtrees = 0;