(find_reg): Add comment about nonlocal labels.

From-SVN: r3284
1993-01-19 18:24:27 -05:00 · 1993-01-19 18:24:27 -05:00 · cfcf04a6ba
parent e19f519283
commit cfcf04a6ba
1 changed files with 5 additions and 1 deletions
--- a/gcc/global.c
+++ b/gcc/global.c
@ -1040,7 +1040,11 @@ find_reg (allocno, losers, alt_regs_p, accept_call_clobbered, retrying)
    }
 no_prefs:

-  /* If we haven't succeeded yet, try with caller-saves.  */
+  /* If we haven't succeeded yet, try with caller-saves. 
+     We need not check to see if the current function has nonlocal
+     labels because we don't put any pseudos that are live over calls in
+     registers in that case.  */
+
  if (flag_caller_saves && best_reg < 0)
    {
      /* Did not find a register.  If it would be profitable to