* Makefile.in (cs-tconfig.h): Pass USED_FOR_TARGET to mkconfig.sh

[pf3gnuchains/gcc-fork.git] / gcc / flow.c

diff --git a/gcc/flow.c b/gcc/flow.c
index 2c7e84f..ff1d861 100644 (file)
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -1798,7 +1798,6 @@ propagate_one_insn (struct propagate_block_info *pbi, rtx insn)
     }
   else
     {
-      rtx note;
       /* Any regs live at the time of a call instruction must not go
         in a register clobbered by calls.  Find all regs now live and
         record this for them.  */
@@ -1873,10 +1872,6 @@ propagate_one_insn (struct propagate_block_info *pbi, rtx insn)
       /* Record uses.  */
       if (! insn_is_dead)
        mark_used_regs (pbi, PATTERN (insn), NULL_RTX, insn);
-      if ((flags & PROP_EQUAL_NOTES)
-         && ((note = find_reg_note (insn, REG_EQUAL, NULL_RTX))
-             || (note = find_reg_note (insn, REG_EQUIV, NULL_RTX))))
-       mark_used_regs (pbi, XEXP (note, 0), NULL_RTX, insn);
 
       /* Sometimes we may have inserted something before INSN (such as a move)
         when we make an auto-inc.  So ensure we will scan those insns.  */
@@ -4339,9 +4334,10 @@ void
 recompute_reg_usage (void)
 {
   allocate_reg_life_data ();
-  /* distribute_notes in combiner fails to convert some of the REG_UNUSED notes
-   to REG_DEAD notes.  This causes CHECK_DEAD_NOTES in sched1 to abort.  To 
-   solve this update the DEATH_NOTES here.  */
+  /* distribute_notes in combiner fails to convert some of the
+     REG_UNUSED notes to REG_DEAD notes.  This causes CHECK_DEAD_NOTES
+     in sched1 to die.  To solve this update the DEATH_NOTES
+     here.  */
   update_life_info (NULL, UPDATE_LIFE_LOCAL, PROP_REG_INFO | PROP_DEATH_NOTES);
 }