c-common.c (IN_GCC_FRONTEND): Do not undef.

2010-07-03  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* c-family/c-common.c (IN_GCC_FRONTEND): Do not undef.
	Do not include expr.h
	(vector_mode_valid_p): Move here.
	* expr.c (vector_mode_valid_p): Move to c-common.c.
	* expr.h (vector_mode_valid_p): Do not declare here.
	* system.h: Poison GCC_EXPR_H in front-ends.
	* Makefile.in: Update dependencies.

From-SVN: r161785

1 files changed, 0 insertions, 33 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index a2a8054..d3ef6be 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -10295,39 +10295,6 @@ try_tablejump (tree index_type, tree index_expr, tree minval, tree range,
   return 1;
 }
 
-/* Nonzero if the mode is a valid vector mode for this architecture.
-   This returns nonzero even if there is no hardware support for the
-   vector mode, but we can emulate with narrower modes.  */
-
-int
-vector_mode_valid_p (enum machine_mode mode)
-{
-  enum mode_class mclass = GET_MODE_CLASS (mode);
-  enum machine_mode innermode;
-
-  /* Doh!  What's going on?  */
-  if (mclass != MODE_VECTOR_INT
-      && mclass != MODE_VECTOR_FLOAT
-      && mclass != MODE_VECTOR_FRACT
-      && mclass != MODE_VECTOR_UFRACT
-      && mclass != MODE_VECTOR_ACCUM
-      && mclass != MODE_VECTOR_UACCUM)
-    return 0;
-
-  /* Hardware support.  Woo hoo!  */
-  if (targetm.vector_mode_supported_p (mode))
-    return 1;
-
-  innermode = GET_MODE_INNER (mode);
-
-  /* We should probably return 1 if requesting V4DI and we have no DI,
-     but we have V2DI, but this is probably very unlikely.  */
-
-  /* If we have support for the inner mode, we can safely emulate it.
-     We may not have V2DI, but me can emulate with a pair of DIs.  */
-  return targetm.scalar_mode_supported_p (innermode);
-}
-
 /* Return a CONST_VECTOR rtx for a VECTOR_CST tree.  */
 static rtx
 const_vector_from_tree (tree exp)