From: Richard Kenner <kenner@gcc.gnu.org>
Date: Mon, 23 Sep 1996 23:28:23 +0000 (-0400)
Subject: (can_combine_p): Even if SMALL_REGISTER_CLASSES, know lifetime not
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e309d4d2f79d4ce5388c338c4169126566e9a5d7;p=gcc.git

(can_combine_p): Even if SMALL_REGISTER_CLASSES, know lifetime not
extended if all_adjacent set.

From-SVN: r12789
---

diff --git a/gcc/combine.c b/gcc/combine.c
index 796a7c24cdd..5f07a35e1be 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -964,7 +964,7 @@ can_combine_p (insn, i3, pred, succ, pdest, psrc)
 	      || (REGNO (src) < FIRST_PSEUDO_REGISTER
 		  && (! HARD_REGNO_MODE_OK (REGNO (src), GET_MODE (src))
 #ifdef SMALL_REGISTER_CLASSES
-		      || ! REG_USERVAR_P (src)
+		      || (! all_adjacent && ! REG_USERVAR_P (src))
 #endif
 		      ))))
 	return 0;