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re PR debug/49544 (ICE in new_elt_loc_list) 

PR debug/49544
	* cselib.c (promote_debug_loc): If cselib_preserve_constants
	and l has two DEBUG_INSN owned locs instead of just one, adjust
	the second location's setting_insn too.

	* gcc.dg/pr49544.c: New test.

From-SVN: r175540
This commit is contained in:
Jakub Jelinek 2011-06-27 18:45:49 +02:00 committed by Jakub Jelinek
parent 0d72f628a4
commit dc2a58daab
4 changed files with 40 additions and 1 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2011-06-27 Jakub Jelinek <jakub@redhat.com>
PR debug/49544
* cselib.c (promote_debug_loc): If cselib_preserve_constants
and l has two DEBUG_INSN owned locs instead of just one, adjust
the second location's setting_insn too.
2011-06-27 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR libmudflap/38738

10
gcc/cselib.c
View File

@ -257,7 +257,15 @@ promote_debug_loc (struct elt_loc_list *l)
{
n_debug_values--;
l->setting_insn = cselib_current_insn;
gcc_assert (!l->next || cselib_preserve_constants);
if (cselib_preserve_constants && l->next)
{
gcc_assert (l->next->setting_insn
&& DEBUG_INSN_P (l->next->setting_insn)
&& !l->next->next);
l->next->setting_insn = cselib_current_insn;
}
else
gcc_assert (!l->next);
}
}

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2011-06-27 Jakub Jelinek <jakub@redhat.com>
PR debug/49544
* gcc.dg/pr49544.c: New test.
2011-06-27 Richard Guenther <rguenther@suse.de>
PR tree-optimization/49394

19
gcc/testsuite/gcc.dg/pr49544.c Normal file
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@ -0,0 +1,19 @@
/* PR debug/49544 */
/* { dg-do compile } */
/* { dg-options "-g -O2" } */
int baz (int, int, void *);
static inline __attribute__ ((always_inline)) long
foo (int x, int y, void *z)
{
if (y < 0)
return baz (x, y, z);
return 0;
}
long
bar (long x, long y, long z)
{
return foo (x, y, (void *) z);
}