From: Richard Kenner <kenner@gcc.gnu.org>
Date: Thu, 16 Jun 1994 00:40:39 +0000 (-0400)
Subject: (divsi3): Fix divide by 2^N with compare RTL.
X-Git-Tag: misc/cutover-egcs-0~6445
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6b12107a9dd00bfd182214f55b923685ab4e9fb;p=thirdparty%2Fgcc.git

(divsi3): Fix divide by 2^N with compare RTL.

From-SVN: r7498
---

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 3bff9803ed76..ee9b8d648673 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -1254,8 +1254,9 @@
 
 (define_insn ""
   [(set (match_operand:CC 0 "cc_reg_operand" "=x")
-	(div:SI (match_operand:SI 1 "gpc_reg_operand" "r")
-		(match_operand:SI 2 "const_int_operand" "N")))
+	(compare:CC (div:SI (match_operand:SI 1 "gpc_reg_operand" "r")
+			    (match_operand:SI 2 "const_int_operand" "N"))
+		    (const_int 0)))
    (clobber (match_scratch:SI 3 "=r"))]
   "exact_log2 (INTVAL (operands[2])) >= 0"
   "{srai|srawi} %3,%1,%p2\;{aze.|addze.} %3,%3"
@@ -1264,8 +1265,9 @@
 
 (define_insn ""
   [(set (match_operand:CC 3 "cc_reg_operand" "=x")
-	(div:SI (match_operand:SI 1 "gpc_reg_operand" "r")
-		(match_operand:SI 2 "const_int_operand" "N")))
+	(compare:CC (div:SI (match_operand:SI 1 "gpc_reg_operand" "r")
+			    (match_operand:SI 2 "const_int_operand" "N"))
+		    (const_int 0)))
    (set (match_operand:SI 0 "gpc_reg_operand" "=r")
 	(div:SI (match_dup 1) (match_dup 2)))]
   "exact_log2 (INTVAL (operands[2])) >= 0"