From: Joern Rennecke <joern.rennecke@embecosm.com>
Date: Mon, 3 Mar 2014 22:09:02 +0000 (+0000)
Subject: arc.md (casesi_load): Mark as varying.
X-Git-Tag: releases/gcc-4.9.0~590
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=220c1a51844ac28cb45155d0e9cad6b5a187818f;p=thirdparty%2Fgcc.git

arc.md (casesi_load): Mark as varying.

        * config/arc/arc.md (casesi_load) <length attribute alternative 0>:
        Mark as varying.

From-SVN: r208294
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b860a3aba2e6..77b1e0358c3f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-03-03  Joern Rennecke  <joern.rennecke@embecosm.com>
+
+	* config/arc/arc.md (casesi_load) <length attribute alternative 0>:
+	Mark as varying.
+
 2014-03-03  Joern Rennecke  <joern.rennecke@embecosm.com>
 
 	* opts.h (CL_PCH_IGNORE): Define.
diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md
index f1715796dfd7..4b768222f8c0 100644
--- a/gcc/config/arc/arc.md
+++ b/gcc/config/arc/arc.md
@@ -3611,7 +3611,11 @@
       (const_string "false")])
    (set_attr_alternative "length"
      [(cond
-	[(eq_attr "iscompact" "false") (const_int 4)]
+	[(eq_attr "iscompact" "false") (const_int 4)
+	; We have to mention (match_dup 3) to convince genattrtab.c that this
+	; is a varying length insn.
+	 (eq (symbol_ref "1+1") (const_int 2)) (const_int 2)
+	 (gt (minus (match_dup 3) (pc)) (const_int 42)) (const_int 4)]
 	(const_int 2))
       (const_int 4)
       (const_int 8)])])