From: Georg-Johann Lay <avr@gjlay.de>
Date: Tue, 21 Jun 2016 10:15:25 +0000 (+0000)
Subject: re PR target/71103 (avr-gcc crashes with unrecognizable insn error)
X-Git-Tag: releases/gcc-4.9.4~119
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=19ce4d73edceb0bad856355a3ebdb088f7aa9951;p=thirdparty%2Fgcc.git

re PR target/71103 (avr-gcc crashes with unrecognizable insn error)

	PR target/71103
	* config/avr/avr.md (movqi): Only handle loading subreg:qi of
	constant addresses if can_create_pseudo_p.

From-SVN: r237636
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3b93a04a41f5..3785897a57e3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-06-21  Georg-Johann Lay  <avr@gjlay.de>
+
+	PR target/71103
+	* config/avr/avr.md (movqi): Only handle loading subreg:qi of
+	constant addresses if can_create_pseudo_p.
+
 2016-06-20  Georg-Johann Lay  <avr@gjlay.de>
 	    Pitchumani Sivanupandi  <pitchumani.s@atmel.com>
 
diff --git a/gcc/config/avr/avr.md b/gcc/config/avr/avr.md
index 434f0c974ef8..e385665847f6 100644
--- a/gcc/config/avr/avr.md
+++ b/gcc/config/avr/avr.md
@@ -623,8 +623,9 @@
 
     if (QImode == <MODE>mode
         && SUBREG == GET_CODE (src)
-        && CONSTANT_ADDRESS_P (SUBREG_REG (src)))
-    {
+        && CONSTANT_ADDRESS_P (SUBREG_REG (src))
+        && can_create_pseudo_p())
+      {
         // store_bitfield may want to store a SYMBOL_REF or CONST in a
         // structure that's represented as PSImode.  As the upper 16 bits
         // of PSImode cannot be expressed as an HImode subreg, the rhs is