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targhooks.c (default_builtin_vectorized_conversion): Handle vec_construct, using vectype to base cost on subparts.

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2012-06-13  Bill Schmidt  <wschmidt@linux.ibm.com>

	* targhooks.c (default_builtin_vectorized_conversion): Handle
	vec_construct, using vectype to base cost on subparts.
	* target.h (enum vect_cost_for_stmt): Add vec_construct.
	* tree-vect-stmts.c (vect_model_load_cost): Use vec_construct
	instead of scalar_to-vec.
	* config/spu/spu.c (spu_builtin_vectorization_cost): Handle
	vec_construct in same way as default for now.
	* config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
	* config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost):
	Handle vec_construct, including special case for 32-bit loads.

From-SVN: r188508
This commit is contained in:
Bill Schmidt 2012-06-13 12:27:57 +00:00 • committed by William Schmidt
parent 2be13164c1
commit a21892add3
7 changed files with 55 additions and 8 deletions
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13
gcc/ChangeLog
View file

@ -1,3 +1,16 @@
2012-06-13 Bill Schmidt <wschmidt@linux.ibm.com>
* targhooks.c (default_builtin_vectorized_conversion): Handle
vec_construct, using vectype to base cost on subparts.
* target.h (enum vect_cost_for_stmt): Add vec_construct.
* tree-vect-stmts.c (vect_model_load_cost): Use vec_construct
instead of scalar_to-vec.
* config/spu/spu.c (spu_builtin_vectorization_cost): Handle
vec_construct in same way as default for now.
* config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
* config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost):
Handle vec_construct, including special case for 32-bit loads.
2012-06-13 Xinyu Qi <xyqi@marvell.com>
* config/arm/arm.c (FL_IWMMXT2): New define.

8
gcc/config/i386/i386.c
View file

@ -36072,9 +36072,11 @@ static const struct attribute_spec ix86_attribute_table[] =
/* Implement targetm.vectorize.builtin_vectorization_cost. */
static int
ix86_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
tree vectype ATTRIBUTE_UNUSED,
tree vectype,
int misalign ATTRIBUTE_UNUSED)
{
unsigned elements;
switch (type_of_cost)
{
case scalar_stmt:
@ -36115,6 +36117,10 @@ ix86_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
case vec_promote_demote:
return ix86_cost->vec_stmt_cost;
case vec_construct:
elements = TYPE_VECTOR_SUBPARTS (vectype);
return elements / 2 + 1;
default:
gcc_unreachable ();
}

13
gcc/config/rs6000/rs6000.c
View file

@ -3405,6 +3405,7 @@ rs6000_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
tree vectype, int misalign)
{
unsigned elements;
tree elem_type;
switch (type_of_cost)
{
@ -3504,6 +3505,18 @@ rs6000_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
return 2;
case vec_construct:
elements = TYPE_VECTOR_SUBPARTS (vectype);
elem_type = TREE_TYPE (vectype);
/* 32-bit vectors loaded into registers are stored as double
precision, so we need n/2 converts in addition to the usual
n/2 merges to construct a vector of short floats from them. */
if (SCALAR_FLOAT_TYPE_P (elem_type)
&& TYPE_PRECISION (elem_type) == 32)
return elements + 1;
else
return elements / 2 + 1;
default:
gcc_unreachable ();
}

8
gcc/config/spu/spu.c
View file

@ -6908,9 +6908,11 @@ spu_builtin_mask_for_load (void)
/* Implement targetm.vectorize.builtin_vectorization_cost. */
static int
spu_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
tree vectype ATTRIBUTE_UNUSED,
tree vectype,
int misalign ATTRIBUTE_UNUSED)
{
unsigned elements;
switch (type_of_cost)
{
case scalar_stmt:
@ -6937,6 +6939,10 @@ spu_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
case cond_branch_taken:
return 6;
case vec_construct:
elements = TYPE_VECTOR_SUBPARTS (vectype);
return elements / 2 + 1;
default:
gcc_unreachable ();
}

3
gcc/target.h
View file

@ -146,7 +146,8 @@ enum vect_cost_for_stmt
cond_branch_not_taken,
cond_branch_taken,
vec_perm,
vec_promote_demote
vec_promote_demote,
vec_construct
};
/* The target structure. This holds all the backend hooks. */

8
gcc/targhooks.c
View file

@ -499,9 +499,11 @@ default_builtin_vectorized_conversion (unsigned int code ATTRIBUTE_UNUSED,
int
default_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
tree vectype ATTRIBUTE_UNUSED,
tree vectype,
int misalign ATTRIBUTE_UNUSED)
{
unsigned elements;
switch (type_of_cost)
{
case scalar_stmt:
@ -524,6 +526,10 @@ default_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
case cond_branch_taken:
return 3;
case vec_construct:
elements = TYPE_VECTOR_SUBPARTS (vectype);
return elements / 2 + 1;
default:
gcc_unreachable ();
}

10
gcc/tree-vect-stmts.c
View file

@ -1031,11 +1031,13 @@ vect_model_load_cost (stmt_vec_info stmt_info, int ncopies, bool load_lanes_p,
/* The loads themselves. */
if (STMT_VINFO_STRIDE_LOAD_P (stmt_info))
{
/* N scalar loads plus gathering them into a vector.
??? scalar_to_vec isn't the cost for that. */
/* N scalar loads plus gathering them into a vector. */
tree vectype = STMT_VINFO_VECTYPE (stmt_info);
inside_cost += (vect_get_stmt_cost (scalar_load) * ncopies
* TYPE_VECTOR_SUBPARTS (STMT_VINFO_VECTYPE (stmt_info)));
inside_cost += ncopies * vect_get_stmt_cost (scalar_to_vec);
* TYPE_VECTOR_SUBPARTS (vectype));
inside_cost += ncopies
* targetm.vectorize.builtin_vectorization_cost (vec_construct,
vectype, 0);
}
else
vect_get_load_cost (first_dr, ncopies,