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fix dump_flow_info
- From: Richard Henderson <rth at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Wed, 17 Sep 2003 16:47:14 -0700
- Subject: fix dump_flow_info
I don't recall exactly where I saw this, but we shouldn't be
trying to dump reg_n_info when it doesn't exist.
The patch below is with -b to discard re-intention confusion.
r~
* cfg.c (dump_flow_info): Skip register dump if reg_n_info null.
Index: cfg.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/cfg.c,v
retrieving revision 1.34.2.12
diff -c -p -d -b -r1.34.2.12 cfg.c
*** cfg.c 19 Aug 2003 22:13:05 -0000 1.34.2.12
--- cfg.c 17 Sep 2003 23:44:21 -0000
*************** dump_flow_info (FILE *file)
*** 493,498 ****
--- 493,499 ----
static const char * const reg_class_names[] = REG_CLASS_NAMES;
fprintf (file, "%d registers.\n", max_regno);
+ if (reg_n_info)
for (i = FIRST_PSEUDO_REGISTER; i < max_regno; i++)
if (REG_N_REFS (i))
{