* flow.c (calculate_global_regs_live): Zero bb->aux to begin.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30546 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c87e9fd..c0fca5e 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -3,6 +3,8 @@ Mon Nov 15 20:46:45 1999  Richard Henderson  <rth@cygnus.com>
        * alpha.c (alpha_build_va_list): Use make_lang_type and
        initialize TYPE_NAME for the va_list record.
 
+       * flow.c (calculate_global_regs_live): Zero bb->aux to begin.
+
 Tue Nov 16 14:37:52 1999  Geoffrey Keating  <geoffk@cygnus.com>
 
        * config/rs6000/rs6000.c (first_reg_to_save): Save

diff --git a/gcc/flow.c b/gcc/flow.c
index 894129e..fee2f55 100644 (file)
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -3012,6 +3012,10 @@ calculate_global_regs_live (blocks_in, blocks_out, flags)
   qtail = queue;
   qhead = qend = queue + n_basic_blocks + 2;
 
+  /* Clear out the garbage that might be hanging out in bb->aux.  */
+  for (i = n_basic_blocks - 1; i >= 0; --i)
+    BASIC_BLOCK (i)->aux = NULL;
+
   /* Queue the blocks set in the initial mask.  Do this in reverse block
      number order so that we are more likely for the first round to do 
      useful work.  We use AUX non-null to flag that the block is queued.  */