RFA: hook doc patch (38/112): TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST, TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE, TARGET_VECTORIZE_BUILTIN_VEC_PERM, TARGET_VECTORIZE_BUILTIN_VEC_PERM_OK

[Joern Rennecke <amylaar at spamcop dot net>]

2010-01-15  Joern Rennecke  <amylaar@spamcop.net>

	* tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST): Document.
	(TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE): Likewise.
	(TARGET_VECTORIZE_BUILTIN_VEC_PERM): Likewise.
	(TARGET_VECTORIZE_BUILTIN_VEC_PERM_OK): Likewise.

Index: tm.texi
===================================================================
--- tm.texi	(revision 155367)
+++ tm.texi	(working copy)
@@ -5679,7 +5709,24 @@ preserved (e.g.@: used only by a reducti
 If this hook is defined, the autovectorizer will use it along with the
 @code{TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN} target hook when vectorizing
 widening multiplication in cases that the order of the results does not have to be
 preserved (e.g.@: used only by a reduction computation). Otherwise, the
 @code{widen_mult_hi/lo} idioms will be used.
 @end deftypefn
+
+@deftypefn {Target Hook} int TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST (bool @var{runtime_test})
+Returns the cost to be added to the overheads involved with executing 
+the vectorized version of a loop.
+@end deftypefn
+
+@deftypefn {Target Hook} bool TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE (const_tree @var{type}, bool @var{is_packed})
+Return true if vector alignment is reachable (by peeling N iterations) for the given type.
+@end deftypefn
+
+@deftypefn {Target Hook} tree TARGET_VECTORIZE_BUILTIN_VEC_PERM (tree @var{type}, tree *@var{mask_element_type})
+Target builtin that implements vector permute.
+@end deftypefn
+
+@deftypefn {Target Hook} bool TARGET_VECTORIZE_BUILTIN_VEC_PERM_OK (tree @var{vec_type}, tree @var{mask})
+Return true if a vector created for @code{builtin_vec_perm} is valid.
+@end deftypefn