From: Richard Kenner <kenner@gcc.gnu.org>
Date: Sun, 2 Feb 1997 11:08:11 +0000 (-0500)
Subject: (modregno_adjust): Fixed case when reg_renumber invalid.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b11d179015a079ad00e99b1480ed03ed725a4077;p=gcc.git

(modregno_adjust): Fixed case when reg_renumber invalid.

From-SVN: r13577
---

diff --git a/gcc/config/1750a/1750a.c b/gcc/config/1750a/1750a.c
index 0c10b6ddc73..c82a872a163 100644
--- a/gcc/config/1750a/1750a.c
+++ b/gcc/config/1750a/1750a.c
@@ -204,12 +204,15 @@ mod_regno_adjust (instr, op)
   char *r = (!strncmp (instr, "dvr", 3) ? "r" : "");
   int modregno_gcc = REGNO (op[3]), modregno_1750 = REGNO (op[0]) + 1;
 
-  if (modregno_gcc == modregno_1750 || (reg_renumber != NULL
-        && reg_renumber[modregno_gcc] == reg_renumber[modregno_1750]))
+  if (modregno_gcc == modregno_1750
+      || (reg_renumber != NULL
+	  && reg_renumber[modregno_gcc] >= 0
+	  && reg_renumber[modregno_gcc] == reg_renumber[modregno_1750]))
     sprintf (outstr, "%s r%%0,%s%%2", instr, r);
   else
     sprintf (outstr, "lr r%d,r%d\n\t%s r%%0,%s%%2\n\txwr r%d,r%d",
-	modregno_gcc, modregno_1750, instr, r, modregno_1750, modregno_gcc);
+	     modregno_gcc, modregno_1750, instr, r, modregno_1750,
+	     modregno_gcc);
   return outstr;
 }