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Change permute index type to unsigned short

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This patch changes the element type of (auto_)vec_perm_indices from
unsigned char to unsigned short.  This is needed for fixed-length
2048-bit SVE.  (SVE is variable-length by default, but it's possible
to ask for specific vector lengths if you want to.)

2017-09-25  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* target.h (vec_perm_indices): Use unsigned short rather than
	unsigned char.
	(auto_vec_perm_indices): Likewise.
	* config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const_ok):
	Use unsigned int rather than unsigned char.
	* config/arm/arm.c (arm_vectorize_vec_perm_const_ok): Likewise.

From-SVN: r253150
This commit is contained in:
Richard Sandiford 2017-09-25 13:26:12 +00:00 committed by Richard Sandiford
parent 26993e95b9
commit f39b92e2c4
4 changed files with 13 additions and 4 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2017-09-25 Richard Sandiford <richard.sandiford@linaro.org>
* target.h (vec_perm_indices): Use unsigned short rather than
unsigned char.
(auto_vec_perm_indices): Likewise.
* config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const_ok):
Use unsigned int rather than unsigned char.
* config/arm/arm.c (arm_vectorize_vec_perm_const_ok): Likewise.
2017-09-25 Richard Biener <rguenther@suse.de>
* cfgloop.h (sort_sibling_loops): Declare.

2
gcc/config/aarch64/aarch64.c
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@ -13820,7 +13820,7 @@ aarch64_vectorize_vec_perm_const_ok (machine_mode vmode, vec_perm_indices sel)
nelt = sel.length ();
for (i = which = 0; i < nelt; ++i)
{
unsigned char e = d.perm[i];
unsigned int e = d.perm[i];
gcc_assert (e < 2 * nelt);
which |= (e < nelt ? 1 : 2);
}

2
gcc/config/arm/arm.c
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@ -29261,7 +29261,7 @@ arm_vectorize_vec_perm_const_ok (machine_mode vmode, vec_perm_indices sel)
nelt = GET_MODE_NUNITS (d.vmode);
for (i = which = 0; i < nelt; ++i)
{
unsigned char e = d.perm[i];
unsigned int e = d.perm[i];
gcc_assert (e < 2 * nelt);
which |= (e < nelt ? 1 : 2);
}

4
gcc/target.h
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@ -193,11 +193,11 @@ enum vect_cost_model_location {
/* The type to use for vector permutes with a constant permute vector.
Each entry is an index into the concatenated input vectors. */
typedef vec<unsigned char> vec_perm_indices;
typedef vec<unsigned short> vec_perm_indices;
/* Same, but can be used to construct local permute vectors that are
automatically freed. */
typedef auto_vec<unsigned char, 32> auto_vec_perm_indices;
typedef auto_vec<unsigned short, 32> auto_vec_perm_indices;
/* The target structure. This holds all the backend hooks. */
#define DEFHOOKPOD(NAME, DOC, TYPE, INIT) TYPE NAME;