From: Kaz Kojima <kkojima@gcc.gnu.org>
Date: Wed, 19 Mar 2014 22:51:47 +0000 (+0000)
Subject: re PR target/60039 (sh3 optimisation bug with -O2)
X-Git-Tag: releases/gcc-4.9.0~380
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8659d57bdaab0cc70460d5faf2d1a74fb2a9c3a5;p=thirdparty%2Fgcc.git

re PR target/60039 (sh3 optimisation bug with -O2)

	PR target/60039
	* config/sh/sh.md (udivsi3_i1): Clobber R1 register

From-SVN: r208688
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 78a407166044..557ee3625f1c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-03-19  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	PR target/60039
+	* config/sh/sh.md (udivsi3_i1): Clobber R1 register.
+
 2014-03-19  James Greenhalgh  <james.greenhalgh@arm.com>
 
 	* config/arm/aarch-common-protos.h
diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md
index 76af3a2e18b7..ab1f0a51c222 100644
--- a/gcc/config/sh/sh.md
+++ b/gcc/config/sh/sh.md
@@ -2314,6 +2314,7 @@
 	(udiv:SI (reg:SI R4_REG) (reg:SI R5_REG)))
    (clobber (reg:SI T_REG))
    (clobber (reg:SI PR_REG))
+   (clobber (reg:SI R1_REG))
    (clobber (reg:SI R4_REG))
    (use (match_operand:SI 1 "arith_reg_operand" "r"))]
   "TARGET_SH1 && TARGET_DIVIDE_CALL_DIV1"