re PR target/20666 (SPARC builtins should be folded if possible)

2005-06-08  James A. Morrison  <phython@gcc.gnu.org>

        PR target/20666
        * config/sparc/sparc.c (sparc_fold_builtin): New function
        (sparc_vis_mul8x16): New function.
        (sparc_handle_vis_mul8x16): New function.
        (TARGET_FOLD_BUILTIN): Define to sparc_fold_builtin.

From-SVN: r100762
This commit is contained in:
James A. Morrison 2005-06-08 16:03:31 +00:00
parent a6cddf6e80
commit 8b0096b486
9 changed files with 358 additions and 0 deletions

View File

@ -1,3 +1,11 @@
2005-06-08 James A. Morrison <phython@gcc.gnu.org>
PR target/20666
* config/sparc/sparc.c (sparc_fold_builtin): New function
(sparc_vis_mul8x16): New function.
(sparc_handle_vis_mul8x16): New function.
(TARGET_FOLD_BUILTIN): Define to sparc_fold_builtin.
2005-06-08 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/rs6000.md (call_indirect_nonlocal_aix32): Prefer

View File

@ -341,6 +341,9 @@ static void sparc_init_libfuncs (void);
static void sparc_init_builtins (void);
static void sparc_vis_init_builtins (void);
static rtx sparc_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
static tree sparc_fold_builtin (tree, tree, bool);
static int sparc_vis_mul8x16 (int, int);
static tree sparc_handle_vis_mul8x16 (int, tree, tree, tree);
static void sparc_output_mi_thunk (FILE *, tree, HOST_WIDE_INT,
HOST_WIDE_INT, tree);
static bool sparc_can_output_mi_thunk (tree, HOST_WIDE_INT,
@ -437,6 +440,8 @@ static bool fpu_option_set = false;
#undef TARGET_EXPAND_BUILTIN
#define TARGET_EXPAND_BUILTIN sparc_expand_builtin
#undef TARGET_FOLD_BUILTIN
#define TARGET_FOLD_BUILTIN sparc_fold_builtin
#if TARGET_TLS
#undef TARGET_HAVE_TLS
@ -7904,6 +7909,204 @@ sparc_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
return op[0];
}
static int
sparc_vis_mul8x16 (int e8, int e16)
{
return (e8 * e16 + 128) / 256;
}
/* Multiply the vector elements in ELTS0 to the elements in ELTS1 as specified
by FNCODE. All of the elements in ELTS0 and ELTS1 lists must be integer
constants. A tree list with the results of the multiplications is returned,
and each element in the list is of INNER_TYPE. */
static tree
sparc_handle_vis_mul8x16 (int fncode, tree inner_type, tree elts0, tree elts1)
{
tree n_elts = NULL_TREE;
int scale;
switch (fncode)
{
case CODE_FOR_fmul8x16_vis:
for (; elts0 && elts1;
elts0 = TREE_CHAIN (elts0), elts1 = TREE_CHAIN (elts1))
{
int val
= sparc_vis_mul8x16 (TREE_INT_CST_LOW (TREE_VALUE (elts0)),
TREE_INT_CST_LOW (TREE_VALUE (elts1)));
n_elts = tree_cons (NULL_TREE,
build_int_cst (inner_type, val),
n_elts);
}
break;
case CODE_FOR_fmul8x16au_vis:
scale = TREE_INT_CST_LOW (TREE_VALUE (elts1));
for (; elts0; elts0 = TREE_CHAIN (elts0))
{
int val
= sparc_vis_mul8x16 (TREE_INT_CST_LOW (TREE_VALUE (elts0)),
scale);
n_elts = tree_cons (NULL_TREE,
build_int_cst (inner_type, val),
n_elts);
}
break;
case CODE_FOR_fmul8x16al_vis:
scale = TREE_INT_CST_LOW (TREE_VALUE (TREE_CHAIN (elts1)));
for (; elts0; elts0 = TREE_CHAIN (elts0))
{
int val
= sparc_vis_mul8x16 (TREE_INT_CST_LOW (TREE_VALUE (elts0)),
scale);
n_elts = tree_cons (NULL_TREE,
build_int_cst (inner_type, val),
n_elts);
}
break;
default:
gcc_unreachable ();
}
return nreverse (n_elts);
}
/* Handle TARGET_FOLD_BUILTIN target hook.
Fold builtin functions for SPARC intrinsics. If INGNORE is true the
result of the function call is ignored. NULL_TREE is returned if the
function could not be folded. */
static tree
sparc_fold_builtin (tree fndecl, tree arglist, bool ignore)
{
tree arg0, arg1, arg2;
tree rtype = TREE_TYPE (TREE_TYPE (fndecl));
if (ignore && DECL_FUNCTION_CODE (fndecl) != CODE_FOR_alignaddrsi_vis
&& DECL_FUNCTION_CODE (fndecl) != CODE_FOR_alignaddrdi_vis)
return build_int_cst (rtype, 0);
switch (DECL_FUNCTION_CODE (fndecl))
{
case CODE_FOR_fexpand_vis:
arg0 = TREE_VALUE (arglist);
STRIP_NOPS (arg0);
if (TREE_CODE (arg0) == VECTOR_CST)
{
tree inner_type = TREE_TYPE (rtype);
tree elts = TREE_VECTOR_CST_ELTS (arg0);
tree n_elts = NULL_TREE;
for (; elts; elts = TREE_CHAIN (elts))
{
unsigned int val = TREE_INT_CST_LOW (TREE_VALUE (elts)) << 4;
n_elts = tree_cons (NULL_TREE,
build_int_cst (inner_type, val),
n_elts);
}
return build_vector (rtype, nreverse (n_elts));
}
break;
case CODE_FOR_fmul8x16_vis:
case CODE_FOR_fmul8x16au_vis:
case CODE_FOR_fmul8x16al_vis:
arg0 = TREE_VALUE (arglist);
arg1 = TREE_VALUE (TREE_CHAIN (arglist));
STRIP_NOPS (arg0);
STRIP_NOPS (arg1);
if (TREE_CODE (arg0) == VECTOR_CST && TREE_CODE (arg1) == VECTOR_CST)
{
tree inner_type = TREE_TYPE (rtype);
tree elts0 = TREE_VECTOR_CST_ELTS (arg0);
tree elts1 = TREE_VECTOR_CST_ELTS (arg1);
tree n_elts = sparc_handle_vis_mul8x16 (DECL_FUNCTION_CODE (fndecl),
inner_type, elts0, elts1);
return build_vector (rtype, n_elts);
}
break;
case CODE_FOR_fpmerge_vis:
arg0 = TREE_VALUE (arglist);
arg1 = TREE_VALUE (TREE_CHAIN (arglist));
STRIP_NOPS (arg0);
STRIP_NOPS (arg1);
if (TREE_CODE (arg0) == VECTOR_CST && TREE_CODE (arg1) == VECTOR_CST)
{
tree elts0 = TREE_VECTOR_CST_ELTS (arg0);
tree elts1 = TREE_VECTOR_CST_ELTS (arg1);
tree n_elts = NULL_TREE;
for (; elts0 && elts1;
elts0 = TREE_CHAIN (elts0), elts1 = TREE_CHAIN (elts1))
{
n_elts = tree_cons (NULL_TREE, TREE_VALUE (elts0), n_elts);
n_elts = tree_cons (NULL_TREE, TREE_VALUE (elts1), n_elts);
}
return build_vector (rtype, nreverse (n_elts));
}
break;
case CODE_FOR_pdist_vis:
arg0 = TREE_VALUE (arglist);
arg1 = TREE_VALUE (TREE_CHAIN (arglist));
arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist)));
STRIP_NOPS (arg0);
STRIP_NOPS (arg1);
STRIP_NOPS (arg2);
if (TREE_CODE (arg0) == VECTOR_CST
&& TREE_CODE (arg1) == VECTOR_CST
&& TREE_CODE (arg2) == INTEGER_CST)
{
int overflow = 0;
unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (arg2);
HOST_WIDE_INT high = TREE_INT_CST_HIGH (arg2);
tree elts0 = TREE_VECTOR_CST_ELTS (arg0);
tree elts1 = TREE_VECTOR_CST_ELTS (arg1);
for (; elts0 && elts1;
elts0 = TREE_CHAIN (elts0), elts1 = TREE_CHAIN (elts1))
{
unsigned HOST_WIDE_INT
low0 = TREE_INT_CST_LOW (TREE_VALUE (elts0)),
low1 = TREE_INT_CST_LOW (TREE_VALUE (elts1));
HOST_WIDE_INT high0 = TREE_INT_CST_HIGH (TREE_VALUE (elts0));
HOST_WIDE_INT high1 = TREE_INT_CST_HIGH (TREE_VALUE (elts1));
unsigned HOST_WIDE_INT l;
HOST_WIDE_INT h;
overflow |= neg_double (low1, high1, &l, &h);
overflow |= add_double (low0, high0, l, h, &l, &h);
if (h < 0)
overflow |= neg_double (l, h, &l, &h);
overflow |= add_double (low, high, l, h, &low, &high);
}
gcc_assert (overflow == 0);
return build_int_cst_wide (rtype, low, high);
}
default:
break;
}
return NULL_TREE;
}
int
sparc_extra_constraint_check (rtx op, int c, int strict)

View File

@ -1,3 +1,13 @@
2005-06-08 James A. Morrison <phython@gcc.gnu.org>
PR target/20666
* gcc.target/sparc/fexpand-2.c: New.
* gcc.target/sparc/fpmerge-2.c: New.
* gcc.target/sparc/fpmul-2.c: New.
* gcc.target/sparc/noresult.c: New.
* gcc.target/sparc/pdist-2.c: New.
* gcc.target/sparc/pdist-3.c: New.
2005-06-08 Alex V. Breger <atrus.ru@atrus.ru>
PR testsuite/21702

View File

@ -0,0 +1,11 @@
/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-final_cleanup -mcpu=ultrasparc -mvis" } */
typedef short vec16 __attribute__((vector_size(8)));
typedef unsigned char vec8 __attribute__((vector_size(4)));
vec16 foo () {
vec8 a = {(unsigned char)1,(unsigned char)2,(unsigned char)4,(unsigned char)8};
return __builtin_vis_fexpand (a);
}
/* { dg-final { scan-tree-dump "{ 16, 32, 64, 128 }" "final_cleanup" } } */

View File

@ -0,0 +1,15 @@
/* { dg-do compile } */
/* { dg-options "-mcpu=ultrasparc -mvis -O1 -fdump-tree-final_cleanup" } */
typedef unsigned char pixel __attribute__((vector_size(8)));
typedef unsigned char vec8 __attribute__((vector_size(4)));
#define _(ARG) (unsigned char)ARG
pixel foo () {
vec8 a = { _(1), _(3), _(5), _(7) };
vec8 b = { _(2), _(4), _(6), _(8) };
return __builtin_vis_fpmerge (a, b);
}
/* { dg-final { scan-assembler-not "fpmerge\t%" } } */
/* { dg-final { scan-tree-dump "{ 1, 2, 3, 4, 5, 6, 7, 8 }" "final_cleanup" } } */

View File

@ -0,0 +1,47 @@
/* { dg-do compile } */
/* { dg-options "-mcpu=ultrasparc -mvis -O1 -fdump-tree-final_cleanup" } */
typedef int vec32 __attribute__((vector_size(8)));
typedef short vec16 __attribute__((vector_size(8)));
typedef unsigned char vec8 __attribute__((vector_size(8)));
typedef unsigned char pixel __attribute__((vector_size(4)));
typedef short pixel16 __attribute__((vector_size(4)));
vec16 foo1 () {
pixel a = { (unsigned char)1, (unsigned char)2, (unsigned char)3, (unsigned char)4 };
vec16 b = { (short)1, (short)2, (short)3, (short)4 };
return __builtin_vis_fmul8x16 (a, b);
}
vec16 foo1_1 () {
pixel a = { (unsigned char)1, (unsigned char)1, (unsigned char)1, (unsigned char)1 };
vec16 b = { (short)256, (short)512, (short)1024, (short)2048 };
return __builtin_vis_fmul8x16 (a, b);
}
vec16 foo1_2 () {
pixel a = { (unsigned char)255, (unsigned char)255, (unsigned char)255, (unsigned char)255 };
vec16 b = { (short)256, (short)512, (short)1024, (short)32767 };
return __builtin_vis_fmul8x16 (a, b);
}
/* { dg-final { scan-assembler-not "fmul8x16\t%" } } */
/* { dg-final { scan-tree-dump "{ 0, 0, 0, 0 }" "final_cleanup" } } */
/* { dg-final { scan-tree-dump "{ 1, 2, 4, 8 }" "final_cleanup" } } */
/* { dg-final { scan-tree-dump "{ 255, 510, 1020, 32639 }" "final_cleanup" } } */
vec16 foo2 () {
pixel a = { 1, 2, 3, 4 };
pixel16 b = { 256, 512 };
return __builtin_vis_fmul8x16au (a, b);
}
/* { dg-final { scan-assembler-not "fmul8x16au\t%" } } */
/* { dg-final { scan-tree-dump "{ 1, 2, 3, 4 }" "final_cleanup" } } */
vec16 foo3 () {
pixel a = { 1, 2, 3, 4 };
pixel16 b = { 256, 512 };
return __builtin_vis_fmul8x16al (a, b);
}
/* { dg-final { scan-assembler-not "fmul8x16al\t%" } } */
/* { dg-final { scan-tree-dump "{ 2, 4, 6, 8 }" "final_cleanup" } } */

View File

@ -0,0 +1,10 @@
/* { dg-do compile } */
/* { dg-options "-mcpu=ultrasparc -mvis" } */
typedef short vec16 __attribute__((vector_size(8)));
typedef char vec8 __attribute__((vector_size(4)));
void foo (vec16 a) {
__builtin_vis_fpack16 (a);
}
/* { dg-final { scan-assembler-not "fpack16\t%" } } */

View File

@ -0,0 +1,18 @@
/* { dg-do compile } */
/* { dg-options "-mcpu=ultrasparc -mvis -O1 -fdump-tree-final_cleanup" } */
typedef long long int64_t;
typedef unsigned char vec8 __attribute__((vector_size(8)));
#define _(A) (unsigned char)A
int64_t foo () {
int64_t d = 2;
vec8 a = { _(1), _(2), _(3), _(4), _(5), _(6), _(7), _(255) };
vec8 b = { _(2), _(4), _(8), _(16), _(32), _(64), _(128), _(8) };
d = __builtin_vis_pdist (a, b, d);
return d;
}
/* { dg-final { scan-assembler-not "pdist\t%" } } */
/* { dg-final { scan-tree-dump "return 475" "final_cleanup" } } */

View File

@ -0,0 +1,36 @@
/* { dg-do run } */
/* { dg-options "-mcpu=ultrasparc -mvis -O1" } */
typedef long long int64_t;
typedef unsigned char vec8 __attribute__((vector_size(8)));
extern void abort ();
extern void exit (int);
#define _(A) (unsigned char)A
int64_t foo (vec8 a, vec8 b) {
int64_t d = 2;
d = __builtin_vis_pdist (a, b, d);
return d;
}
int64_t bar () {
int64_t d = 2;
vec8 a = { _(1), _(2), _(3), _(4), _(5), _(6), _(7), _(255) };
vec8 b = { _(2), _(4), _(8), _(16), _(32), _(64), _(128), _(8) };
d = __builtin_vis_pdist (a, b, d);
return d;
}
static vec8 a = { 1, 2, 3, 4, 5, 6, 7, 255 };
static vec8 b = { 2, 4, 8, 16, 32, 64, 128, 8 };
int main (int argc, char *argv[]) {
if (foo (a, b) != bar ())
abort ();
exit (0);
}