expmed.c (ceil_log2): Move from here...

	* expmed.c (ceil_log2): Move from here...
	* hwint.c: ... to here for older GCCs...
	* hwint.h: ... and here for newer GCCs.
	* rtl.h (ceil_log2): Remove prototype.

	* tree-phinodes.c: Do not include rtl.h.
	* Makefile.in (tree-phinodes.o): Do not depend on RTL_H.

From-SVN: r188710

gcc/ChangeLog

 2012-06-17  Steven Bosscher  <steven@gcc.gnu.org>
 
+	* expmed.c (ceil_log2): Move from here...
+	* hwint.c: ... to here for older GCCs...
+	* hwint.h: ... and here for newer GCCs.
+	* rtl.h (ceil_log2): Remove prototype.
+
+	* tree-phinodes.c: Do not include rtl.h.
+	* Makefile.in (tree-phinodes.o): Do not depend on RTL_H.
+
+2012-06-17  Steven Bosscher  <steven@gcc.gnu.org>
+
 	* config/cris/cris.h (TARGET_ELF): Remove.
 	(FORCE_EH_FRAME_INFO_IN_DATA_SECTION): Remove.
 	(CRIS_ASM_OUTPUT_ALIGNED_DECL_COMMON): Simpify using TARGET_ELF==1.

gcc/Makefile.in

@@ -2410,7 +2410,7 @@ tree-ssanames.o : tree-ssanames.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
    $(TM_H) $(TREE_H) $(TREE_FLOW_H) $(TREE_PASS_H)
 tree-phinodes.o : tree-phinodes.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
    $(TM_H) $(TREE_H) $(GGC_H) $(BASIC_BLOCK_H) $(TREE_FLOW_H) \
-   gt-tree-phinodes.h $(RTL_H) $(DIAGNOSTIC_CORE_H)  $(GIMPLE_H)
+   gt-tree-phinodes.h $(DIAGNOSTIC_CORE_H) $(GIMPLE_H)
 domwalk.o : domwalk.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
    $(BASIC_BLOCK_H) domwalk.h sbitmap.h
 tree-ssa-live.o : tree-ssa-live.c $(TREE_FLOW_H) $(CONFIG_H) $(SYSTEM_H) \

gcc/expmed.c

@@ -3267,14 +3267,6 @@ expand_widening_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target,
 		       unsignedp, OPTAB_LIB_WIDEN);
 }
 
-/* Return the smallest n such that 2**n >= X.  */
-
-int
-ceil_log2 (unsigned HOST_WIDE_INT x)
-{
-  return floor_log2 (x - 1) + 1;
-}
-
 /* Choose a minimal N + 1 bit approximation to 1/D that can be used to
    replace division by D, and put the least significant N bits of the result
    in *MULTIPLIER_PTR and return the most significant bit.

gcc/hwint.c

@@ -25,10 +25,11 @@ along with GCC; see the file COPYING3.  If not see
 
 #if GCC_VERSION < 3004
 
-/* The functions clz_hwi, ctz_hwi, ffs_hwi, floor_log2 and exact_log2
-   are defined as inline functions in hwint.h if GCC_VERSION >= 3004.
-   The definitions here are used for older versions of GCC and non-GCC
-   bootstrap compilers.  */
+/* The functions clz_hwi, ctz_hwi, ffs_hwi, floor_log2, ceil_log2,
+   and exact_log2 are defined as inline functions in hwint.h
+   if GCC_VERSION >= 3004.
+   The definitions here are used for older versions of GCC and
+   non-GCC bootstrap compilers.  */
 
 /* Given X, an unsigned number, return the largest int Y such that 2**Y <= X.
    If X is 0, return -1.  */
@@ -61,6 +62,14 @@ floor_log2 (unsigned HOST_WIDE_INT x)
   return t;
 }
 
+/* Given X, an unsigned number, return the largest Y such that 2**Y >= X.  */
+
+int
+ceil_log2 (unsigned HOST_WIDE_INT x)
+{
+  return floor_log2 (x - 1) + 1;
+}
+
 /* Return the logarithm of X, base 2, considering X unsigned,
    if X is a power of 2.  Otherwise, returns -1.  */
 

gcc/hwint.h

@@ -185,6 +185,9 @@ extern int exact_log2                  (unsigned HOST_WIDE_INT);
 /* Return floor of log2, with -1 for zero.  */
 extern int floor_log2                  (unsigned HOST_WIDE_INT);
 
+/* Return the smallest n such that 2**n >= X.  */
+extern int ceil_log2			(unsigned HOST_WIDE_INT);
+
 #else /* GCC_VERSION >= 3004 */
 
 /* For convenience, define 0 -> word_size.  */
@@ -235,6 +238,12 @@ floor_log2 (unsigned HOST_WIDE_INT x)
 }
 
 static inline int
+ceil_log2 (unsigned HOST_WIDE_INT x)
+{
+  return floor_log2 (x - 1) + 1;
+}
+
+static inline int
 exact_log2 (unsigned HOST_WIDE_INT x)
 {
   return x == (x & -x) && x ? ctz_hwi (x) : -1;

gcc/rtl.h

@@ -1638,9 +1638,6 @@ extern int currently_expanding_to_rtl;
 
 /* Generally useful functions.  */
 
-/* In expmed.c */
-extern int ceil_log2 (unsigned HOST_WIDE_INT);
-
 /* In explow.c */
 extern HOST_WIDE_INT trunc_int_for_mode	(HOST_WIDE_INT, enum machine_mode);
 extern rtx plus_constant (enum machine_mode, rtx, HOST_WIDE_INT);

gcc/tree-phinodes.c

@@ -23,7 +23,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "coretypes.h"
 #include "tm.h"
 #include "tree.h"
-#include "rtl.h"	/* FIXME: Only for ceil_log2, of all things...  */
 #include "ggc.h"
 #include "basic-block.h"
 #include "tree-flow.h"