procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

re PR debug/43443 (We should yank ASM_OPERANDS locs from var-tracking preserved cselib VALUEs)

Browse source 
PR debug/43443
	* var-tracking.c (add_cselib_value_chains): Remove ASM_OPERANDS
	locs from preserved VALUEs.

From-SVN: r157620
This commit is contained in:
Jakub Jelinek 2010-03-22 11:26:33 +01:00 • committed by Jakub Jelinek
parent 260f179b8d
commit 539eb45985
2 changed files with 18 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2010-03-22 Jakub Jelinek <jakub@redhat.com>
PR debug/43443
* var-tracking.c (add_cselib_value_chains): Remove ASM_OPERANDS
locs from preserved VALUEs.
2010-03-21 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR middle-end/42718

16
gcc/var-tracking.c
View file

@ -2791,15 +2791,23 @@ add_value_chains (decl_or_value dv, rtx loc)
}
/* If CSELIB_VAL_PTR of value DV refer to VALUEs, add backlinks from those
VALUEs to DV. */
VALUEs to DV. Add the same time get rid of ASM_OPERANDS from locs list,
that is something we never can express in .debug_info and can prevent
reverse ops from being used. */
static void
add_cselib_value_chains (decl_or_value dv)
{
struct elt_loc_list *l;
struct elt_loc_list **l;
for (l = CSELIB_VAL_PTR (dv_as_value (dv))->locs; l; l = l->next)
for_each_rtx (&l->loc, add_value_chain, dv_as_opaque (dv));
for (l = &CSELIB_VAL_PTR (dv_as_value (dv))->locs; *l;)
if (GET_CODE ((*l)->loc) == ASM_OPERANDS)
*l = (*l)->next;
else
{
for_each_rtx (&(*l)->loc, add_value_chain, dv_as_opaque (dv));
l = &(*l)->next;
}
}
/* If decl or value DVP refers to VALUE from *LOC, remove backlinks