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omp-low.h (oacc_fn_attrib_kernels_p): Declare. 

* omp-low.h (oacc_fn_attrib_kernels_p): Declare.
	(set_oacc_fn_attrib): Add IS_KERNEL arg.
	* omp-low.c (set_oacc_fn_attrib): Add IS_KERNEL arg.
	(oacc_fn_attrib_kernels_p, oacc_fn_attrib_level): New.
	(expand_omp_target): Pass is_kernel to set_oacc_fn_attrib.
	(oacc_validate_dims): Add LEVEL arg, don't return level.
	(new_oacc_loop_routine): Use oacc_fn_attrib_level, not
	oacc_validate_dims.
	(execute_oacc_device_lower): Adjust, add more dump output.
	* tree-ssa-loop.c (gate_oacc_kernels): Use
	oacc_fn_attrib_kernels_p.
	* tree-parloops.c (create_parallel_loop): Adjust
	set_oacc_fn_attrib call.

From-SVN: r232830
This commit is contained in:
Nathan Sidwell 2016-01-26 14:32:30 +00:00 committed by Nathan Sidwell
parent b0b35f86a2
commit f8393eb0f0
6 changed files with 96 additions and 38 deletions
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16
gcc/ChangeLog
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@ -1,3 +1,19 @@
2016-01-26 Nathan Sidwell <nathan@acm.org>
* omp-low.h (oacc_fn_attrib_kernels_p): Declare.
(set_oacc_fn_attrib): Add IS_KERNEL arg.
* omp-low.c (set_oacc_fn_attrib): Add IS_KERNEL arg.
(oacc_fn_attrib_kernels_p, oacc_fn_attrib_level): New.
(expand_omp_target): Pass is_kernel to set_oacc_fn_attrib.
(oacc_validate_dims): Add LEVEL arg, don't return level.
(new_oacc_loop_routine): Use oacc_fn_attrib_level, not
oacc_validate_dims.
(execute_oacc_device_lower): Adjust, add more dump output.
* tree-ssa-loop.c (gate_oacc_kernels): Use
oacc_fn_attrib_kernels_p.
* tree-parloops.c (create_parallel_loop): Adjust
set_oacc_fn_attrib call.
2016-01-26 Jakub Jelinek <jakub@redhat.com>
PR lto/69254

106
gcc/omp-low.c
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@ -12487,10 +12487,11 @@ replace_oacc_fn_attrib (tree fn, tree dims)
/* Scan CLAUSES for launch dimensions and attach them to the oacc
function attribute. Push any that are non-constant onto the ARGS
list, along with an appropriate GOMP_LAUNCH_DIM tag. */
list, along with an appropriate GOMP_LAUNCH_DIM tag. IS_KERNEL is
true, if these are for a kernels region offload function. */
void
set_oacc_fn_attrib (tree fn, tree clauses, vec<tree> *args)
set_oacc_fn_attrib (tree fn, tree clauses, bool is_kernel, vec<tree> *args)
{
/* Must match GOMP_DIM ordering. */
static const omp_clause_code ids[]
@ -12515,6 +12516,9 @@ set_oacc_fn_attrib (tree fn, tree clauses, vec<tree> *args)
non_const |= GOMP_DIM_MASK (ix);
}
attr = tree_cons (NULL_TREE, dim, attr);
/* Note kernelness with TREE_PUBLIC. */
if (is_kernel)
TREE_PUBLIC (attr) = 1;
}
replace_oacc_fn_attrib (fn, attr);
@ -12583,6 +12587,36 @@ get_oacc_fn_attrib (tree fn)
return lookup_attribute (OACC_FN_ATTRIB, DECL_ATTRIBUTES (fn));
}
/* Return true if this oacc fn attrib is for a kernels offload
region. We use the TREE_PUBLIC flag of each dimension -- only
need to check the first one. */
bool
oacc_fn_attrib_kernels_p (tree attr)
{
return TREE_PUBLIC (TREE_VALUE (attr));
}
/* Return level at which oacc routine may spawn a partitioned loop, or
-1 if it is not a routine (i.e. is an offload fn). */
static int
oacc_fn_attrib_level (tree attr)
{
tree pos = TREE_VALUE (attr);
if (!TREE_PURPOSE (pos))
return -1;
int ix = 0;
for (ix = 0; ix != GOMP_DIM_MAX;
ix++, pos = TREE_CHAIN (pos))
if (!integer_zerop (TREE_PURPOSE (pos)))
break;
return ix;
}
/* Extract an oacc execution dimension from FN. FN must be an
offloaded function or routine that has already had its execution
dimensions lowered to the target-specific values. */
@ -13125,6 +13159,7 @@ expand_omp_target (struct omp_region *region)
enum built_in_function start_ix;
location_t clause_loc;
unsigned int flags_i = 0;
bool oacc_kernels_p = false;
switch (gimple_omp_target_kind (entry_stmt))
{
@ -13144,8 +13179,10 @@ expand_omp_target (struct omp_region *region)
start_ix = BUILT_IN_GOMP_TARGET_ENTER_EXIT_DATA;
flags_i |= GOMP_TARGET_FLAG_EXIT_DATA;
break;
case GF_OMP_TARGET_KIND_OACC_PARALLEL:
case GF_OMP_TARGET_KIND_OACC_KERNELS:
oacc_kernels_p = true;
/* FALLTHROUGH */
case GF_OMP_TARGET_KIND_OACC_PARALLEL:
start_ix = BUILT_IN_GOACC_PARALLEL;
break;
case GF_OMP_TARGET_KIND_OACC_DATA:
@ -13304,7 +13341,7 @@ expand_omp_target (struct omp_region *region)
break;
case BUILT_IN_GOACC_PARALLEL:
{
set_oacc_fn_attrib (child_fn, clauses, &args);
set_oacc_fn_attrib (child_fn, clauses, oacc_kernels_p, &args);
tagging = true;
}
/* FALLTHRU */
@ -20202,17 +20239,17 @@ oacc_xform_loop (gcall *call)
}
/* Validate and update the dimensions for offloaded FN. ATTRS is the
raw attribute. DIMS is an array of dimensions, which is returned.
Returns the function level dimensionality -- the level at which an
offload routine wishes to partition a loop. */
raw attribute. DIMS is an array of dimensions, which is filled in.
LEVEL is the partitioning level of a routine, or -1 for an offload
region itself. */
static int
oacc_validate_dims (tree fn, tree attrs, int *dims)
static void
oacc_validate_dims (tree fn, tree attrs, int *dims, int level)
{
tree purpose[GOMP_DIM_MAX];
unsigned ix;
tree pos = TREE_VALUE (attrs);
int fn_level = -1;
bool is_kernel = oacc_fn_attrib_kernels_p (attrs);
/* Make sure the attribute creator attached the dimension
information. */
@ -20221,21 +20258,12 @@ oacc_validate_dims (tree fn, tree attrs, int *dims)
for (ix = 0; ix != GOMP_DIM_MAX; ix++)
{
purpose[ix] = TREE_PURPOSE (pos);
if (purpose[ix])
{
if (integer_zerop (purpose[ix]))
fn_level = ix + 1;
else if (fn_level < 0)
fn_level = ix;
}
tree val = TREE_VALUE (pos);
dims[ix] = val ? TREE_INT_CST_LOW (val) : -1;
pos = TREE_CHAIN (pos);
}
bool changed = targetm.goacc.validate_dims (fn, dims, fn_level);
bool changed = targetm.goacc.validate_dims (fn, dims, level);
/* Default anything left to 1. */
for (ix = 0; ix != GOMP_DIM_MAX; ix++)
@ -20250,13 +20278,15 @@ oacc_validate_dims (tree fn, tree attrs, int *dims)
/* Replace the attribute with new values. */
pos = NULL_TREE;
for (ix = GOMP_DIM_MAX; ix--;)
pos = tree_cons (purpose[ix],
build_int_cst (integer_type_node, dims[ix]),
pos);
{
pos = tree_cons (purpose[ix],
build_int_cst (integer_type_node, dims[ix]),
pos);
if (is_kernel)
TREE_PUBLIC (pos) = 1;
}
replace_oacc_fn_attrib (fn, pos);
}
return fn_level;
}
/* Create an empty OpenACC loop structure at LOC. */
@ -20327,8 +20357,7 @@ static void
new_oacc_loop_routine (oacc_loop *parent, gcall *call, tree decl, tree attrs)
{
oacc_loop *loop = new_oacc_loop_raw (parent, gimple_location (call));
int dims[GOMP_DIM_MAX];
int level = oacc_validate_dims (decl, attrs, dims);
int level = oacc_fn_attrib_level (attrs);
gcc_assert (level >= 0);
@ -20924,18 +20953,35 @@ static unsigned int
execute_oacc_device_lower ()
{
tree attrs = get_oacc_fn_attrib (current_function_decl);
int dims[GOMP_DIM_MAX];
if (!attrs)
/* Not an offloaded function. */
return 0;
int fn_level = oacc_validate_dims (current_function_decl, attrs, dims);
/* Discover, partition and process the loops. */
oacc_loop *loops = oacc_loop_discovery ();
int fn_level = oacc_fn_attrib_level (attrs);
if (dump_file)
fprintf (dump_file, oacc_fn_attrib_kernels_p (attrs)
? "Function is kernels offload\n"
: fn_level < 0 ? "Function is parallel offload\n"
: "Function is routine level %d\n", fn_level);
unsigned outer_mask = fn_level >= 0 ? GOMP_DIM_MASK (fn_level) - 1 : 0;
oacc_loop_partition (loops, outer_mask);
int dims[GOMP_DIM_MAX];
oacc_validate_dims (current_function_decl, attrs, dims, fn_level);
if (dump_file)
{
const char *comma = "Compute dimensions [";
for (int ix = 0; ix != GOMP_DIM_MAX; ix++, comma = ", ")
fprintf (dump_file, "%s%d", comma, dims[ix]);
fprintf (dump_file, "]\n");
}
oacc_loop_process (loops);
if (dump_file)
{

3
gcc/omp-low.h
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@ -33,7 +33,8 @@ extern tree omp_member_access_dummy_var (tree);
extern void replace_oacc_fn_attrib (tree, tree);
extern tree build_oacc_routine_dims (tree);
extern tree get_oacc_fn_attrib (tree);
extern void set_oacc_fn_attrib (tree, tree, vec<tree> *);
extern void set_oacc_fn_attrib (tree, tree, bool, vec<tree> *);
extern bool oacc_fn_attrib_kernels_p (tree);
extern int get_oacc_ifn_dim_arg (const gimple *);
extern int get_oacc_fn_dim_size (tree, int);

0
gcc/testsuite/gcc.dg/ipa/inline-9.c Normal file
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2
gcc/tree-parloops.c
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@ -2041,7 +2041,7 @@ create_parallel_loop (struct loop *loop, tree loop_fn, tree data,
tree clause = build_omp_clause (loc, OMP_CLAUSE_NUM_GANGS);
OMP_CLAUSE_NUM_GANGS_EXPR (clause)
= build_int_cst (integer_type_node, n_threads);
set_oacc_fn_attrib (cfun->decl, clause, NULL);
set_oacc_fn_attrib (cfun->decl, clause, true, NULL);
}
else
{

7
gcc/tree-ssa-loop.c
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@ -154,12 +154,7 @@ gate_oacc_kernels (function *fn)
tree oacc_function_attr = get_oacc_fn_attrib (fn->decl);
if (oacc_function_attr == NULL_TREE)
return false;
tree val = TREE_VALUE (oacc_function_attr);
while (val != NULL_TREE && TREE_VALUE (val) == NULL_TREE)
val = TREE_CHAIN (val);
if (val != NULL_TREE)
if (!oacc_fn_attrib_kernels_p (oacc_function_attr))
return false;
struct loop *loop;