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re PR target/53682 (ICE in cselib_lookup (SEGV) on i586-linux-gnu) 

PR debug/53682
* cselib.c (promote_debug_loc): Don't crash on NULL argument.

From-SVN: r188866
This commit is contained in:
Alexandre Oliva 2012-06-22 01:29:28 +00:00 committed by Alexandre Oliva
parent 7e94033a9d
commit ce8fe26dc0
2 changed files with 6 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-06-21 Alexandre Oliva <aoliva@redhat.com>
PR debug/53682
* cselib.c (promote_debug_loc): Don't crash on NULL argument.
2012-06-21 Meador Inge <meadori@codesourcery.com>
PR c/53702

2
gcc/cselib.c
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@ -322,7 +322,7 @@ new_elt_loc_list (cselib_val *val, rtx loc)
static inline void
promote_debug_loc (struct elt_loc_list *l)
{
if (l->setting_insn && DEBUG_INSN_P (l->setting_insn)
if (l && l->setting_insn && DEBUG_INSN_P (l->setting_insn)
&& (!cselib_current_insn || !DEBUG_INSN_P (cselib_current_insn)))
{
n_debug_values--;