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dwarf2out.c (add_var_loc_to_decl): Change last argument to rtx...

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* dwarf2out.c (add_var_loc_to_decl): Change last argument to
	rtx, allocate struct var_loc_node here and return it to the
	caller, and only if it is actually needed.
	(dwarf2out_var_location): Adjust add_var_loc_to_decl caller,
	move it earlier and return immediately if it returns NULL.

From-SVN: r156860
This commit is contained in:
Jakub Jelinek 2010-02-18 09:58:14 +01:00 committed by Jakub Jelinek
parent 5a1e3b6c7f
commit 82cf0c8c00
2 changed files with 25 additions and 10 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2010-02-18 Jakub Jelinek <jakub@redhat.com>
* dwarf2out.c (add_var_loc_to_decl): Change last argument to
rtx, allocate struct var_loc_node here and return it to the
caller, and only if it is actually needed.
(dwarf2out_var_location): Adjust add_var_loc_to_decl caller,
move it earlier and return immediately if it returns NULL.
2010-02-17 Mikael Pettersson <mikpe@it.uu.se>
* config/sparc/gas.h: New file. Restore

27
gcc/dwarf2out.c
View File

@ -1,6 +1,7 @@
/* Output Dwarf2 format symbol table information from GCC.
Copyright (C) 1992, 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Contributed by Gary Funck (gary@intrepid.com).
Derived from DWARF 1 implementation of Ron Guilmette (rfg@monkeys.com).
Extensively modified by Jason Merrill (jason@cygnus.com).
@ -5983,7 +5984,7 @@ static hashval_t decl_loc_table_hash (const void *);
static int decl_loc_table_eq (const void *, const void *);
static var_loc_list *lookup_decl_loc (const_tree);
static void equate_decl_number_to_die (tree, dw_die_ref);
static void add_var_loc_to_decl (tree, struct var_loc_node *);
static struct var_loc_node *add_var_loc_to_decl (tree, rtx);
static void print_spaces (FILE *);
static void print_die (dw_die_ref, FILE *);
static void print_dwarf_line_table (FILE *);
@ -7762,12 +7763,13 @@ equate_decl_number_to_die (tree decl, dw_die_ref decl_die)
/* Add a variable location node to the linked list for DECL. */
static void
add_var_loc_to_decl (tree decl, struct var_loc_node *loc)
static struct var_loc_node *
add_var_loc_to_decl (tree decl, rtx loc_note)
{
unsigned int decl_id = DECL_UID (decl);
var_loc_list *temp;
void **slot;
struct var_loc_node *loc = NULL;
slot = htab_find_slot_with_hash (decl_loc_table, decl, decl_id, INSERT);
if (*slot == NULL)
@ -7785,24 +7787,27 @@ add_var_loc_to_decl (tree decl, struct var_loc_node *loc)
and either both or neither of the locations is uninitialized,
we have nothing to do. */
if ((!rtx_equal_p (NOTE_VAR_LOCATION_LOC (temp->last->var_loc_note),
NOTE_VAR_LOCATION_LOC (loc->var_loc_note)))
NOTE_VAR_LOCATION_LOC (loc_note)))
|| ((NOTE_VAR_LOCATION_STATUS (temp->last->var_loc_note)
!= NOTE_VAR_LOCATION_STATUS (loc->var_loc_note))
!= NOTE_VAR_LOCATION_STATUS (loc_note))
&& ((NOTE_VAR_LOCATION_STATUS (temp->last->var_loc_note)
== VAR_INIT_STATUS_UNINITIALIZED)
|| (NOTE_VAR_LOCATION_STATUS (loc->var_loc_note)
|| (NOTE_VAR_LOCATION_STATUS (loc_note)
== VAR_INIT_STATUS_UNINITIALIZED))))
{
/* Add LOC to the end of list and update LAST. */
loc = GGC_CNEW (struct var_loc_node);
temp->last->next = loc;
temp->last = loc;
}
}
else
{
loc = GGC_CNEW (struct var_loc_node);
temp->first = loc;
temp->last = loc;
}
return loc;
}
/* Keep track of the number of spaces used to indent the
@ -20252,7 +20257,11 @@ dwarf2out_var_location (rtx loc_note)
if (next_real == NULL_RTX)
return;
newloc = GGC_CNEW (struct var_loc_node);
decl = NOTE_VAR_LOCATION_DECL (loc_note);
newloc = add_var_loc_to_decl (decl, loc_note);
if (newloc == NULL)
return;
/* If there were no real insns between note we processed last time
and this note, use the label we emitted last time. */
if (last_var_location_insn == NULL_RTX
@ -20287,8 +20296,6 @@ dwarf2out_var_location (rtx loc_note)
last_var_location_insn = next_real;
last_in_cold_section_p = in_cold_section_p;
decl = NOTE_VAR_LOCATION_DECL (loc_note);
add_var_loc_to_decl (decl, newloc);
}
/* We need to reset the locations at the beginning of each