Turn UNITS_PER_SIMD_WORD into a target hook.

2010-09-14  H.J. Lu  <hongjiu.lu@intel.com>

	* defaults.h (UNITS_PER_SIMD_WORD): Removed.
	* config/arm/arm.h (UNITS_PER_SIMD_WORD): Likewise.
	* config/i386/i386.h (UNITS_PER_SIMD_WORD): Likewise.
	* config/mips/mips.h (UNITS_PER_SIMD_WORD): Likewise.
	* config/rs6000/rs6000.h (UNITS_PER_SIMD_WORD): Likewise.
	* config/sparc/sparc.h (UNITS_PER_SIMD_WORD): Likewise.

	* target.def: Add units_per_simd_word to vectorize.

	* targhooks.c (default_units_per_simd_word): New.
	* targhooks.h (default_units_per_simd_word): Likewise.
	* config/arm/arm.c (arm_units_per_simd_word): Likewise.
	(TARGET_VECTORIZE_UNITS_PER_SIMD_WORD): Likewise.
	* config/mips/mips.c (mips_units_per_simd_word): Likewise.
	(TARGET_VECTORIZE_UNITS_PER_SIMD_WORD): Likewise.
	* config/rs6000/rs6000.c (rs6000_units_per_simd_word): Likewise.
	(TARGET_VECTORIZE_UNITS_PER_SIMD_WORD): Likewise.
	* config/sparc/sparc.c (sparc_units_per_simd_word): Likewise.
	(TARGET_VECTORIZE_UNITS_PER_SIMD_WORD): Likewise.

	* tree-vect-loop.c: Replace UNITS_PER_SIMD_WORD with
	TARGET_VECTORIZE_UNITS_PER_SIMD_WORD in comments.

	* tree-vect-stmts.c (get_vectype_for_scalar_type): Replace
	UNITS_PER_SIMD_WORD with targetm.vectorize.units_per_simd_word.

	* system.h (UNITS_PER_SIMD_WORD): Poisoned.

	* config/i386/i386-protos.h (ix86_units_per_simd_word): Removed.

	* config/i386/i386.c (ix86_units_per_simd_word): Make it
	static.
	(TARGET_VECTORIZE_UNITS_PER_SIMD_WORD): New.

	* doc/tm.texi.in: Remove UNITS_PER_SIMD_WORD.  Add
	TARGET_VECTORIZE_UNITS_PER_SIMD_WORD.

	* doc/tm.texi: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164285 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 14 insertions, 14 deletions

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 91fbaf7a893..8e66da509df 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -995,13 +995,6 @@ Minimum number of units in a word.  If this is undefined, the default is
 smallest value that @code{UNITS_PER_WORD} can have at run-time.
 @end defmac
 
-@defmac UNITS_PER_SIMD_WORD (@var{mode})
-Number of units in the vectors that the vectorizer can produce for
-scalar mode @var{mode}.  The default is equal to @code{UNITS_PER_WORD},
-because the vectorizer can do some transformations even in absence of
-specialized @acronym{SIMD} hardware.
-@end defmac
-
 @defmac POINTER_SIZE
 Width of a pointer, in bits.  You must specify a value no wider than the
 width of @code{Pmode}.  If it is not equal to the width of @code{Pmode},
@@ -5765,6 +5758,13 @@ the elements in the vectors should be of type @var{type}.  @var{is_packed}
 parameter is true if the memory access is defined in a packed struct.
 @end deftypefn
 
+@deftypefn {Target Hook} {unsigned int} TARGET_VECTORIZE_UNITS_PER_SIMD_WORD (enum machine_mode @var{mode})
+This hook should return th number of units in the vectors that the
+vectorizer can produce for scalar mode @var{mode}.  The default is
+equal to @code{UNITS_PER_WORD}, because the vectorizer can do some
+transformations even in absence of specialized @acronym{SIMD} hardware.
+@end deftypefn
+
 @node Anchored Addresses
 @section Anchored Addresses
 @cindex anchored addresses
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index a180a56c9ab..d25ead1bd8f 100644
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -995,13 +995,6 @@ Minimum number of units in a word.  If this is undefined, the default is
 smallest value that @code{UNITS_PER_WORD} can have at run-time.
 @end defmac
 
-@defmac UNITS_PER_SIMD_WORD (@var{mode})
-Number of units in the vectors that the vectorizer can produce for
-scalar mode @var{mode}.  The default is equal to @code{UNITS_PER_WORD},
-because the vectorizer can do some transformations even in absence of
-specialized @acronym{SIMD} hardware.
-@end defmac
-
 @defmac POINTER_SIZE
 Width of a pointer, in bits.  You must specify a value no wider than the
 width of @code{Pmode}.  If it is not equal to the width of @code{Pmode},
@@ -5765,6 +5758,13 @@ the elements in the vectors should be of type @var{type}.  @var{is_packed}
 parameter is true if the memory access is defined in a packed struct.
 @end deftypefn
 
+@hook TARGET_VECTORIZE_UNITS_PER_SIMD_WORD
+This hook should return th number of units in the vectors that the
+vectorizer can produce for scalar mode @var{mode}.  The default is
+equal to @code{UNITS_PER_WORD}, because the vectorizer can do some
+transformations even in absence of specialized @acronym{SIMD} hardware.
+@end deftypefn
+
 @node Anchored Addresses
 @section Anchored Addresses
 @cindex anchored addresses