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

gcc/ * cse.c (try_const_anchors): Punt on CC modes. From-SVN: r202613

cse.c (try_const_anchors): Punt on CC modes.
gcc/ * cse.c (try_const_anchors): Punt on CC modes. From-SVN: r202613
40dbb05c · Richard Sandiford · Richard Sandiford · 1a11a94f · 40dbb05c · 40dbb05c
Commit 40dbb05c authored Sep 16, 2013 by Richard Sandiford Committed by Richard Sandiford Sep 16, 2013
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gcc/cse.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+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.

--- 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;