git
/
gcc
mirror of git://gcc.gnu.org/git/gcc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

re PR debug/50317 (missing DW_OP_GNU_implicit_pointer) 

PR debug/50317
	* tree-ssa.c (target_for_debug_bind): Also allow is_gimple_reg_type
	vars that aren't referenced.
	(tree-ssa-live.c (remove_unused_locals): Don't clear TREE_ADDRESSABLE
	of unreferenced local vars.
	* cfgexpand.c (expand_debug_expr): For DEBUG_IMPLICIT_PTR allow also
	TREE_ADDRESSABLE vars that satisfy target_for_debug_bind.

From-SVN: r181971
This commit is contained in:
Jakub Jelinek 2011-12-03 17:39:56 +01:00 committed by Jakub Jelinek
parent a8028a3ee8
commit f8cca67b9c
4 changed files with 21 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2011-12-03 Jakub Jelinek <jakub@redhat.com>
PR debug/50317
* tree-ssa.c (target_for_debug_bind): Also allow is_gimple_reg_type
vars that aren't referenced.
(tree-ssa-live.c (remove_unused_locals): Don't clear TREE_ADDRESSABLE
of unreferenced local vars.
* cfgexpand.c (expand_debug_expr): For DEBUG_IMPLICIT_PTR allow also
TREE_ADDRESSABLE vars that satisfy target_for_debug_bind.
2011-12-03 Anatoly Sokolov <aesok@post.ru>
* config/arm/arm.h (LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P): Remove.

6
gcc/cfgexpand.c
View File

@ -3325,7 +3325,8 @@ expand_debug_expr (tree exp)
if ((TREE_CODE (TREE_OPERAND (exp, 0)) == VAR_DECL
|| TREE_CODE (TREE_OPERAND (exp, 0)) == PARM_DECL
|| TREE_CODE (TREE_OPERAND (exp, 0)) == RESULT_DECL)
&& !TREE_ADDRESSABLE (TREE_OPERAND (exp, 0)))
&& (!TREE_ADDRESSABLE (TREE_OPERAND (exp, 0))
|| target_for_debug_bind (TREE_OPERAND (exp, 0))))
return gen_rtx_DEBUG_IMPLICIT_PTR (mode, TREE_OPERAND (exp, 0));
if (handled_component_p (TREE_OPERAND (exp, 0)))
@ -3337,7 +3338,8 @@ expand_debug_expr (tree exp)
if ((TREE_CODE (decl) == VAR_DECL
|| TREE_CODE (decl) == PARM_DECL
|| TREE_CODE (decl) == RESULT_DECL)
&& !TREE_ADDRESSABLE (decl)
&& (!TREE_ADDRESSABLE (decl)
|| target_for_debug_bind (decl))
&& (bitoffset % BITS_PER_UNIT) == 0
&& bitsize > 0
&& bitsize == maxsize)

10
gcc/tree-ssa-live.c
View File

@ -814,15 +814,7 @@ remove_unused_locals (void)
bitmap_set_bit (global_unused_vars, DECL_UID (var));
}
else
{
/* For unreferenced local vars drop TREE_ADDRESSABLE
bit in case it is referenced from debug stmts. */
if (DECL_CONTEXT (var) == current_function_decl
&& TREE_ADDRESSABLE (var)
&& is_gimple_reg_type (TREE_TYPE (var)))
TREE_ADDRESSABLE (var) = 0;
continue;
}
continue;
}
else if (TREE_CODE (var) == VAR_DECL
&& DECL_HARD_REGISTER (var)

7
gcc/tree-ssa.c
View File

@ -264,7 +264,12 @@ target_for_debug_bind (tree var)
return NULL_TREE;
if (!is_gimple_reg (var))
return NULL_TREE;
{
if (is_gimple_reg_type (TREE_TYPE (var))
&& referenced_var_lookup (cfun, DECL_UID (var)) == NULL_TREE)
return var;
return NULL_TREE;
}
return var;
}