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re PR debug/54693 (VTA guality issues with loops)

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PR debug/54693
* gcc/valtrack.c (dead_debug_insert_temp): Defer rescan of
newly-emitted debug insn.

From-SVN: r192962
This commit is contained in:
Alexandre Oliva 2012-10-29 19:37:25 +00:00 • committed by Alexandre Oliva
parent 61dc0ea735
commit 36290bb4d5
2 changed files with 9 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2012-10-29 Alexandre Oliva <aoliva@redhat.com>
PR debug/54693
* gcc/valtrack.c (dead_debug_insert_temp): Defer rescan of
newly-emitted debug insn.
2012-10-29 Alexandre Oliva <aoliva@redhat.com>
PR debug/54693

6
gcc/valtrack.c
View file

@ -688,7 +688,9 @@ dead_debug_insert_temp (struct dead_debug_local *debug, unsigned int uregno,
bind = emit_debug_insn_after (bind, insn);
else
bind = emit_debug_insn_before (bind, insn);
df_insn_rescan (bind);
if (debug->to_rescan == NULL)
debug->to_rescan = BITMAP_ALLOC (NULL);
bitmap_set_bit (debug->to_rescan, INSN_UID (bind));
/* Adjust all uses. */
while ((cur = uses))
@ -699,8 +701,6 @@ dead_debug_insert_temp (struct dead_debug_local *debug, unsigned int uregno,
*DF_REF_REAL_LOC (cur->use)
= gen_lowpart_SUBREG (GET_MODE (*DF_REF_REAL_LOC (cur->use)), dval);
/* ??? Should we simplify subreg of subreg? */
if (debug->to_rescan == NULL)
debug->to_rescan = BITMAP_ALLOC (NULL);
bitmap_set_bit (debug->to_rescan, INSN_UID (DF_REF_INSN (cur->use)));
uses = cur->next;
XDELETE (cur);