From: Richard Sandiford <rdsandiford@googlemail.com>
Date: Mon, 16 Sep 2013 07:24:15 +0000 (+0000)
Subject: cse.c (try_const_anchors): Punt on CC modes.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=40dbb05c6bb90d7baa33af404cbc254e05c74abf;p=gcc.git

cse.c (try_const_anchors): Punt on CC modes.

gcc/
	* cse.c (try_const_anchors): Punt on CC modes.

From-SVN: r202613
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 097dbcd42bd..600b72e4353 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2013-09-16  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	* cse.c (try_const_anchors): Punt on CC modes.
+
 2013-09-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
 
 	* config/vax/constraints.md (T): Add missing CONSTANT_P check.
diff --git a/gcc/cse.c b/gcc/cse.c
index b96af19f9e4..664a963f1ac 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -1354,6 +1354,11 @@ try_const_anchors (rtx src_const, enum machine_mode mode)
   rtx lower_exp = NULL_RTX, upper_exp = NULL_RTX;
   unsigned lower_old, upper_old;
 
+  /* CONST_INT is used for CC modes, but we should leave those alone.  */
+  if (GET_MODE_CLASS (mode) == MODE_CC)
+    return NULL_RTX;
+
+  gcc_assert (SCALAR_INT_MODE_P (mode));
   if (!compute_const_anchors (src_const, &lower_base, &lower_offs,
 			      &upper_base, &upper_offs))
     return NULL_RTX;