From: Richard Kenner <kenner@gcc.gnu.org>
Date: Sat, 15 Feb 1997 13:15:55 +0000 (-0500)
Subject: Update comments.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4d2c432d8832636b094b20024bda7d1b1ff095aa;p=gcc.git

Update comments.

From-SVN: r13636
---

diff --git a/gcc/combine.c b/gcc/combine.c
index 800d0c71e4b..2265eb3e537 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -952,7 +952,12 @@ can_combine_p (insn, i3, pred, succ, pdest, psrc)
 	 insns.  Eliminate this problem by not combining with such an insn.
 
 	 Also, on some machines we don't want to extend the life of a hard
-	 register.  */
+	 register.
+
+	 This is the same test done in can_combine except that we don't test
+	 if SRC is a CALL operation to permit a hard register with
+	 SMALL_REGISTER_CLASSES, and that we have to take all_adjacent
+	 into account.  */
 
       if (GET_CODE (src) == REG
 	  && ((REGNO (dest) < FIRST_PSEUDO_REGISTER