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author | Joern Rennecke <joern.rennecke@embecosm.com> | 2010-02-15 17:27:35 +0000 |
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committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2010-02-15 17:27:35 +0000 |
commit | a934eb2d597bde268d5aaafcec572c350abe0611 (patch) | |
tree | e871f50fbc9efdd845464093837905f17591e398 /gcc/doc | |
parent | 02edd2f6e9c389fdade17e42df81f84f7b6e5e94 (diff) | |
download | gcc-a934eb2d597bde268d5aaafcec572c350abe0611.zip gcc-a934eb2d597bde268d5aaafcec572c350abe0611.tar.gz gcc-a934eb2d597bde268d5aaafcec572c350abe0611.tar.bz2 |
tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST): Document.
* doc/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.
* doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): Fix argument types.
* doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION):
Fix argument types.
* doc/tm.texi (TARGET_SCHED_DFA_NEW_CYCLE): Add argument names.
Rewrite text to refer to the names.
From-SVN: r156779
Diffstat (limited to 'gcc/doc')
-rw-r--r-- | gcc/doc/tm.texi | 49 |
1 files changed, 34 insertions, 15 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index aae27c5..4de6e2d 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -5684,14 +5684,32 @@ 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} tree TARGET_VECTORIZE_BUILTIN_CONVERSION (enum tree_code @var{code}, tree @var{type}) +@deftypefn {Target Hook} int TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST (bool @var{runtime_test}) +Returns the cost to be added to the overhead 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 + +@deftypefn {Target Hook} tree TARGET_VECTORIZE_BUILTIN_CONVERSION (unsigned @var{code}, tree @var{type}) This hook should return the DECL of a function that implements conversion of the input vector of type @var{type}. If @var{type} is an integral type, the result of the conversion is a vector of floating-point type of the same size. If @var{type} is a floating-point type, the result of the conversion is a vector of integral type of the same size. -@var{code} specifies how the conversion is to be applied +The value of @var{code} is one of the enumerators in @code{enum tree_code} and +specifies how the conversion is to be applied (truncation, rounding, etc.). If this hook is defined, the autovectorizer will use the @@ -5699,10 +5717,11 @@ If this hook is defined, the autovectorizer will use the conversion. Otherwise, it will return @code{NULL_TREE}. @end deftypefn -@deftypefn {Target Hook} tree TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION (enum built_in_function @var{code}, tree @var{vec_type_out}, tree @var{vec_type_in}) +@deftypefn {Target Hook} tree TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION (unsigned @var{code}, tree @var{vec_type_out}, tree @var{vec_type_in}) This hook should return the decl of a function that implements the vectorized variant of the builtin function with builtin function code @var{code} or -@code{NULL_TREE} if such a function is not available. The return type of +@code{NULL_TREE} if such a function is not available. The value of @var{code} +is one of the enumerators in @code{enum built_in_function}. The return type of the vectorized function shall be of vector type @var{vec_type_out} and the argument types should be @var{vec_type_in}. @end deftypefn @@ -6557,18 +6576,18 @@ be issued. The default is that any ready insns can be chosen to be issued. @end deftypefn -@deftypefn {Target Hook} int TARGET_SCHED_DFA_NEW_CYCLE (FILE *, int, rtx, int, int, int *) +@deftypefn {Target Hook} int TARGET_SCHED_DFA_NEW_CYCLE (FILE *@var{dump}, int @var{verbose}, rtx @var{insn}, int @var{last_clock}, int @var{clock}, int *@var{sort_p}) -This hook is called by the insn scheduler before issuing insn passed -as the third parameter on given cycle. If the hook returns nonzero, -the insn is not issued on given processors cycle. Instead of that, -the processor cycle is advanced. If the value passed through the last -parameter is zero, the insn ready queue is not sorted on the new cycle -start as usually. The first parameter passes file for debugging -output. The second one passes the scheduler verbose level of the -debugging output. The forth and the fifth parameter values are -correspondingly processor cycle on which the previous insn has been -issued and the current processor cycle. +This hook is called by the insn scheduler before issuing @var{insn} +on cycle @var{clock}. If the hook returns nonzero, +@var{insn} is not issued on this processor cycle. Instead, +the processor cycle is advanced. If *@var{sort_p} +is zero, the insn ready queue is not sorted on the new cycle +start as usually. @var{dump} and @var{verbose} specify the file and +verbosity level to use for debugging output. +@var{last_clock} and @var{clock} are, respectively, the +processor cycle on which the previous insn has been issued, +and the current processor cycle. @end deftypefn @deftypefn {Target Hook} bool TARGET_SCHED_IS_COSTLY_DEPENDENCE (struct _dep *@var{_dep}, int @var{cost}, int @var{distance}) |