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[PATCH 1/2] [graphite] move all declarations to a same .h file
- From: Sebastian Pop <s dot pop at samsung dot com>
- To: sebpop at gmail dot com
- Cc: gcc-patches at gcc dot gnu dot org, hiraditya at msn dot com, Sebastian Pop <s dot pop at samsung dot com>
- Date: Tue, 24 Nov 2015 11:50:26 -0600
- Subject: [PATCH 1/2] [graphite] move all declarations to a same .h file
- Authentication-results: sourceware.org; auth=none
---
gcc/graphite-dependences.c | 2 +-
gcc/graphite-isl-ast-to-gimple.c | 3 +-
gcc/graphite-isl-ast-to-gimple.h | 26 ---
gcc/graphite-optimize-isl.c | 2 +-
gcc/graphite-poly.c | 2 +-
gcc/graphite-poly.h | 466 --------------------------------------
gcc/graphite-scop-detection.c | 3 +-
gcc/graphite-scop-detection.h | 29 ---
gcc/graphite-sese-to-poly.c | 2 +-
gcc/graphite.c | 4 +-
gcc/graphite.h | 471 +++++++++++++++++++++++++++++++++++++++
11 files changed, 478 insertions(+), 532 deletions(-)
delete mode 100644 gcc/graphite-isl-ast-to-gimple.h
delete mode 100644 gcc/graphite-poly.h
delete mode 100644 gcc/graphite-scop-detection.h
create mode 100644 gcc/graphite.h
diff --git a/gcc/graphite-dependences.c b/gcc/graphite-dependences.c
index 3f4e5ea..fcc771b 100644
--- a/gcc/graphite-dependences.c
+++ b/gcc/graphite-dependences.c
@@ -45,7 +45,7 @@ along with GCC; see the file COPYING3. If not see
#include <isl/flow.h>
#include <isl/constraint.h>
-#include "graphite-poly.h"
+#include "graphite.h"
/* Add the constraints from the set S to the domain of MAP. */
diff --git a/gcc/graphite-isl-ast-to-gimple.c b/gcc/graphite-isl-ast-to-gimple.c
index 1d986f8..58cccce 100644
--- a/gcc/graphite-isl-ast-to-gimple.c
+++ b/gcc/graphite-isl-ast-to-gimple.c
@@ -70,8 +70,7 @@ extern "C" {
}
#endif
-#include "graphite-poly.h"
-#include "graphite-isl-ast-to-gimple.h"
+#include "graphite.h"
#include <map>
diff --git a/gcc/graphite-isl-ast-to-gimple.h b/gcc/graphite-isl-ast-to-gimple.h
deleted file mode 100644
index dc8a934..0000000
--- a/gcc/graphite-isl-ast-to-gimple.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* Translation of ISL AST to Gimple.
- Copyright (C) 2014-2015 Free Software Foundation, Inc.
- Contributed by Roman Gareev <gareevroman@gmail.com>.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3, or (at your option)
-any later version.
-
-GCC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3. If not see
-<http://www.gnu.org/licenses/>. */
-
-#ifndef GCC_GRAPHITE_ISL_AST_TO_GIMPLE_H
-#define GCC_GRAPHITE_ISL_AST_TO_GIMPLE_H
-
-extern bool graphite_regenerate_ast_isl (scop_p);
-
-#endif
diff --git a/gcc/graphite-optimize-isl.c b/gcc/graphite-optimize-isl.c
index 559afc4..8727e39 100644
--- a/gcc/graphite-optimize-isl.c
+++ b/gcc/graphite-optimize-isl.c
@@ -52,7 +52,7 @@ along with GCC; see the file COPYING3. If not see
#include <isl/schedule_node.h>
#endif
-#include "graphite-poly.h"
+#include "graphite.h"
#ifdef HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS
diff --git a/gcc/graphite-poly.c b/gcc/graphite-poly.c
index c783fc3..a51aefe 100644
--- a/gcc/graphite-poly.c
+++ b/gcc/graphite-poly.c
@@ -57,7 +57,7 @@ extern "C" {
}
#endif
-#include "graphite-poly.h"
+#include "graphite.h"
#define OPENSCOP_MAX_STRING 256
diff --git a/gcc/graphite-poly.h b/gcc/graphite-poly.h
deleted file mode 100644
index d396d3f..0000000
--- a/gcc/graphite-poly.h
+++ /dev/null
@@ -1,466 +0,0 @@
-/* Graphite polyhedral representation.
- Copyright (C) 2009-2015 Free Software Foundation, Inc.
- Contributed by Sebastian Pop <sebastian.pop@amd.com> and
- Tobias Grosser <grosser@fim.uni-passau.de>.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3, or (at your option)
-any later version.
-
-GCC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3. If not see
-<http://www.gnu.org/licenses/>. */
-
-#ifndef GCC_GRAPHITE_POLY_H
-#define GCC_GRAPHITE_POLY_H
-
-#include "sese.h"
-
-#ifndef HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS
-# define isl_stat int
-# define isl_stat_ok 0
-#endif
-
-typedef struct poly_dr *poly_dr_p;
-
-typedef struct poly_bb *poly_bb_p;
-
-typedef struct scop *scop_p;
-
-typedef unsigned graphite_dim_t;
-
-static inline graphite_dim_t scop_nb_params (scop_p);
-
-/* A data reference can write or read some memory or we
- just know it may write some memory. */
-enum poly_dr_type
-{
- PDR_READ,
- /* PDR_MAY_READs are represented using PDR_READS. This does not
- limit the expressiveness. */
- PDR_WRITE,
- PDR_MAY_WRITE
-};
-
-struct poly_dr
-{
- /* An identifier for this PDR. */
- int id;
-
- /* The number of data refs identical to this one in the PBB. */
- int nb_refs;
-
- /* A pointer to the gimple stmt containing this reference. */
- gimple *stmt;
-
- /* A pointer to the PBB that contains this data reference. */
- poly_bb_p pbb;
-
- enum poly_dr_type type;
-
- /* The access polyhedron contains the polyhedral space this data
- reference will access.
-
- The polyhedron contains these dimensions:
-
- - The alias set (a):
- Every memory access is classified in at least one alias set.
-
- - The subscripts (s_0, ..., s_n):
- The memory is accessed using zero or more subscript dimensions.
-
- - The iteration domain (variables and parameters)
-
- Do not hardcode the dimensions. Use the following accessor functions:
- - pdr_alias_set_dim
- - pdr_subscript_dim
- - pdr_iterator_dim
- - pdr_parameter_dim
-
- Example:
-
- | int A[1335][123];
- | int *p = malloc ();
- |
- | k = ...
- | for i
- | {
- | if (unknown_function ())
- | p = A;
- | ... = p[?][?];
- | for j
- | A[i][j+k] = m;
- | }
-
- The data access A[i][j+k] in alias set "5" is described like this:
-
- | i j k a s0 s1 1
- | 0 0 0 1 0 0 -5 = 0
- |-1 0 0 0 1 0 0 = 0
- | 0 -1 -1 0 0 1 0 = 0
- | 0 0 0 0 1 0 0 >= 0 # The last four lines describe the
- | 0 0 0 0 0 1 0 >= 0 # array size.
- | 0 0 0 0 -1 0 1335 >= 0
- | 0 0 0 0 0 -1 123 >= 0
-
- The pointer "*p" in alias set "5" and "7" is described as a union of
- polyhedron:
-
-
- | i k a s0 1
- | 0 0 1 0 -5 = 0
- | 0 0 0 1 0 >= 0
-
- "or"
-
- | i k a s0 1
- | 0 0 1 0 -7 = 0
- | 0 0 0 1 0 >= 0
-
- "*p" accesses all of the object allocated with 'malloc'.
-
- The scalar data access "m" is represented as an array with zero subscript
- dimensions.
-
- | i j k a 1
- | 0 0 0 -1 15 = 0
-
- The difference between the graphite internal format for access data and
- the OpenSop format is in the order of columns.
- Instead of having:
-
- | i j k a s0 s1 1
- | 0 0 0 1 0 0 -5 = 0
- |-1 0 0 0 1 0 0 = 0
- | 0 -1 -1 0 0 1 0 = 0
- | 0 0 0 0 1 0 0 >= 0 # The last four lines describe the
- | 0 0 0 0 0 1 0 >= 0 # array size.
- | 0 0 0 0 -1 0 1335 >= 0
- | 0 0 0 0 0 -1 123 >= 0
-
- In OpenScop we have:
-
- | a s0 s1 i j k 1
- | 1 0 0 0 0 0 -5 = 0
- | 0 1 0 -1 0 0 0 = 0
- | 0 0 1 0 -1 -1 0 = 0
- | 0 1 0 0 0 0 0 >= 0 # The last four lines describe the
- | 0 0 1 0 0 0 0 >= 0 # array size.
- | 0 -1 0 0 0 0 1335 >= 0
- | 0 0 -1 0 0 0 123 >= 0
-
- The OpenScop access function is printed as follows:
-
- | 1 # The number of disjunct components in a union of access functions.
- | R C O I L P # Described bellow.
- | a s0 s1 i j k 1
- | 1 0 0 0 0 0 -5 = 0
- | 0 1 0 -1 0 0 0 = 0
- | 0 0 1 0 -1 -1 0 = 0
- | 0 1 0 0 0 0 0 >= 0 # The last four lines describe the
- | 0 0 1 0 0 0 0 >= 0 # array size.
- | 0 -1 0 0 0 0 1335 >= 0
- | 0 0 -1 0 0 0 123 >= 0
-
- Where:
- - R: Number of rows.
- - C: Number of columns.
- - O: Number of output dimensions = alias set + number of subscripts.
- - I: Number of input dimensions (iterators).
- - L: Number of local (existentially quantified) dimensions.
- - P: Number of parameters.
-
- In the example, the vector "R C O I L P" is "7 7 3 2 0 1". */
- isl_map *accesses;
- isl_set *subscript_sizes;
-};
-
-#define PDR_ID(PDR) (PDR->id)
-#define PDR_NB_REFS(PDR) (PDR->nb_refs)
-#define PDR_PBB(PDR) (PDR->pbb)
-#define PDR_TYPE(PDR) (PDR->type)
-#define PDR_ACCESSES(PDR) (NULL)
-
-void new_poly_dr (poly_bb_p, gimple *, enum poly_dr_type,
- isl_map *, isl_set *);
-void free_poly_dr (poly_dr_p);
-void debug_pdr (poly_dr_p);
-void print_pdr (FILE *, poly_dr_p);
-
-static inline bool
-pdr_read_p (poly_dr_p pdr)
-{
- return PDR_TYPE (pdr) == PDR_READ;
-}
-
-/* Returns true when PDR is a "write". */
-
-static inline bool
-pdr_write_p (poly_dr_p pdr)
-{
- return PDR_TYPE (pdr) == PDR_WRITE;
-}
-
-/* Returns true when PDR is a "may write". */
-
-static inline bool
-pdr_may_write_p (poly_dr_p pdr)
-{
- return PDR_TYPE (pdr) == PDR_MAY_WRITE;
-}
-
-/* POLY_BB represents a blackbox in the polyhedral model. */
-
-struct poly_bb
-{
- /* Pointer to a basic block or a statement in the compiler. */
- gimple_poly_bb_p black_box;
-
- /* Pointer to the SCOP containing this PBB. */
- scop_p scop;
-
- /* The iteration domain of this bb. The layout of this polyhedron
- is I|G with I the iteration domain, G the context parameters.
-
- Example:
-
- for (i = a - 7*b + 8; i <= 3*a + 13*b + 20; i++)
- for (j = 2; j <= 2*i + 5; j++)
- for (k = 0; k <= 5; k++)
- S (i,j,k)
-
- Loop iterators: i, j, k
- Parameters: a, b
-
- | i >= a - 7b + 8
- | i <= 3a + 13b + 20
- | j >= 2
- | j <= 2i + 5
- | k >= 0
- | k <= 5
-
- The number of variables in the DOMAIN may change and is not
- related to the number of loops in the original code. */
- isl_set *domain;
-
- /* The data references we access. */
- vec<poly_dr_p> drs;
-
- /* The original scattering. */
- isl_map *schedule;
-
- /* The transformed scattering. */
- isl_map *transformed;
-
- /* A copy of the transformed scattering. */
- isl_map *saved;
-
- /* True when this PBB contains only a reduction statement. */
- bool is_reduction;
-
- /* The last basic block generated for this pbb. */
- basic_block new_bb;
-};
-
-#define PBB_BLACK_BOX(PBB) ((gimple_poly_bb_p) PBB->black_box)
-#define PBB_SCOP(PBB) (PBB->scop)
-#define PBB_DRS(PBB) (PBB->drs)
-#define PBB_IS_REDUCTION(PBB) (PBB->is_reduction)
-
-extern poly_bb_p new_poly_bb (scop_p, gimple_poly_bb_p);
-extern void free_poly_bb (poly_bb_p);
-extern void debug_loop_vec (poly_bb_p);
-extern void print_pbb_domain (FILE *, poly_bb_p);
-extern void print_pbb (FILE *, poly_bb_p);
-extern void print_scop_context (FILE *, scop_p);
-extern void print_scop (FILE *, scop_p);
-extern void debug_pbb_domain (poly_bb_p);
-extern void debug_pbb (poly_bb_p);
-extern void print_pdrs (FILE *, poly_bb_p);
-extern void debug_pdrs (poly_bb_p);
-extern void debug_scop_context (scop_p);
-extern void debug_scop (scop_p);
-extern void print_scop_params (FILE *, scop_p);
-extern void debug_scop_params (scop_p);
-extern void print_iteration_domain (FILE *, poly_bb_p);
-extern void print_iteration_domains (FILE *, scop_p);
-extern void debug_iteration_domain (poly_bb_p);
-extern void debug_iteration_domains (scop_p);
-extern void print_isl_set (FILE *, isl_set *);
-extern void print_isl_map (FILE *, isl_map *);
-extern void print_isl_union_map (FILE *, isl_union_map *);
-extern void print_isl_aff (FILE *, isl_aff *);
-extern void print_isl_constraint (FILE *, isl_constraint *);
-extern void debug_isl_set (isl_set *);
-extern void debug_isl_map (isl_map *);
-extern void debug_isl_union_map (isl_union_map *);
-extern void debug_isl_aff (isl_aff *);
-extern void debug_isl_constraint (isl_constraint *);
-extern int scop_do_interchange (scop_p);
-extern int scop_do_strip_mine (scop_p, int);
-extern bool scop_do_block (scop_p);
-extern bool flatten_all_loops (scop_p);
-extern bool optimize_isl (scop_p);
-extern void pbb_number_of_iterations_at_time (poly_bb_p, graphite_dim_t, mpz_t);
-extern void debug_gmp_value (mpz_t);
-
-/* The basic block of the PBB. */
-
-static inline basic_block
-pbb_bb (poly_bb_p pbb)
-{
- return GBB_BB (PBB_BLACK_BOX (pbb));
-}
-
-static inline int
-pbb_index (poly_bb_p pbb)
-{
- return pbb_bb (pbb)->index;
-}
-
-/* The loop of the PBB. */
-
-static inline loop_p
-pbb_loop (poly_bb_p pbb)
-{
- return gbb_loop (PBB_BLACK_BOX (pbb));
-}
-
-/* The scop that contains the PDR. */
-
-static inline scop_p
-pdr_scop (poly_dr_p pdr)
-{
- return PBB_SCOP (PDR_PBB (pdr));
-}
-
-/* Set black box of PBB to BLACKBOX. */
-
-static inline void
-pbb_set_black_box (poly_bb_p pbb, gimple_poly_bb_p black_box)
-{
- pbb->black_box = black_box;
-}
-
-/* A helper structure to keep track of data references, polyhedral BBs, and
- alias sets. */
-
-struct dr_info
-{
- enum {
- invalid_alias_set = -1
- };
- /* The data reference. */
- data_reference_p dr;
-
- /* The polyhedral BB containing this DR. */
- poly_bb_p pbb;
-
- /* ALIAS_SET is the SCC number assigned by a graph_dfs of the alias graph.
- -1 is an invalid alias set. */
- int alias_set;
-
- /* Construct a DR_INFO from a data reference DR, an ALIAS_SET, and a PBB. */
- dr_info (data_reference_p dr, poly_bb_p pbb,
- int alias_set = invalid_alias_set)
- : dr (dr), pbb (pbb), alias_set (alias_set) {}
-};
-
-/* A SCOP is a Static Control Part of the program, simple enough to be
- represented in polyhedral form. */
-struct scop
-{
- /* A SCOP is defined as a SESE region. */
- sese_info_p scop_info;
-
- /* Number of parameters in SCoP. */
- graphite_dim_t nb_params;
-
- /* All the basic blocks in this scop that contain memory references
- and that will be represented as statements in the polyhedral
- representation. */
- vec<poly_bb_p> pbbs;
-
- /* All the data references in this scop. */
- vec<dr_info> drs;
-
- /* The context describes known restrictions concerning the parameters
- and relations in between the parameters.
-
- void f (int8_t a, uint_16_t b) {
- c = 2 a + b;
- ...
- }
-
- Here we can add these restrictions to the context:
-
- -128 >= a >= 127
- 0 >= b >= 65,535
- c = 2a + b */
- isl_set *param_context;
-
- /* The context used internally by ISL. */
- isl_ctx *isl_context;
-
- /* The original dependence relations:
- RAW are read after write dependences,
- WAR are write after read dependences,
- WAW are write after write dependences. */
- isl_union_map *must_raw, *may_raw, *must_raw_no_source, *may_raw_no_source,
- *must_war, *may_war, *must_war_no_source, *may_war_no_source,
- *must_waw, *may_waw, *must_waw_no_source, *may_waw_no_source;
-};
-
-extern scop_p new_scop (edge, edge);
-extern void free_scop (scop_p);
-extern gimple_poly_bb_p new_gimple_poly_bb (basic_block, vec<data_reference_p>,
- vec<scalar_use>, vec<tree>);
-extern void free_gimple_poly_bb (gimple_poly_bb_p);
-extern void print_generated_program (FILE *, scop_p);
-extern void debug_generated_program (scop_p);
-extern int unify_scattering_dimensions (scop_p);
-extern bool apply_poly_transforms (scop_p);
-
-/* Set the region of SCOP to REGION. */
-
-static inline void
-scop_set_region (scop_p scop, sese_info_p region)
-{
- scop->scop_info = region;
-}
-
-/* Returns the number of parameters for SCOP. */
-
-static inline graphite_dim_t
-scop_nb_params (scop_p scop)
-{
- return scop->nb_params;
-}
-
-/* Set the number of params of SCOP to NB_PARAMS. */
-
-static inline void
-scop_set_nb_params (scop_p scop, graphite_dim_t nb_params)
-{
- scop->nb_params = nb_params;
-}
-
-isl_union_map *
-scop_get_dependences (scop_p scop);
-
-bool
-carries_deps (__isl_keep isl_union_map *schedule,
- __isl_keep isl_union_map *deps,
- int depth);
-
-bool build_poly_scop (scop_p);
-
-#endif
diff --git a/gcc/graphite-scop-detection.c b/gcc/graphite-scop-detection.c
index 60bb049..1f8fc76 100644
--- a/gcc/graphite-scop-detection.c
+++ b/gcc/graphite-scop-detection.c
@@ -54,8 +54,7 @@ along with GCC; see the file COPYING3. If not see
#include <isl/map.h>
#include <isl/union_map.h>
-#include "graphite-poly.h"
-#include "graphite-scop-detection.h"
+#include "graphite.h"
class debug_printer
{
diff --git a/gcc/graphite-scop-detection.h b/gcc/graphite-scop-detection.h
deleted file mode 100644
index 4511796..0000000
--- a/gcc/graphite-scop-detection.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* Detection of Static Control Parts (SCoP) for Graphite.
- Copyright (C) 2009-2015 Free Software Foundation, Inc.
- Contributed by Sebastian Pop <sebastian.pop@amd.com> and
- Tobias Grosser <grosser@fim.uni-passau.de>.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3, or (at your option)
-any later version.
-
-GCC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3. If not see
-<http://www.gnu.org/licenses/>. */
-
-#ifndef GCC_GRAPHITE_SCOP_DETECTION_H
-#define GCC_GRAPHITE_SCOP_DETECTION_H
-
-extern void build_scops (vec<scop_p> *);
-extern void dot_all_scops (vec<scop_p>);
-extern void dot_scop (scop_p);
-
-#endif /* GCC_GRAPHITE_SCOP_DETECTION_H */
diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c
index ec7248b..e680243 100644
--- a/gcc/graphite-sese-to-poly.c
+++ b/gcc/graphite-sese-to-poly.c
@@ -65,7 +65,7 @@ extern "C" {
}
#endif
-#include "graphite-poly.h"
+#include "graphite.h"
/* Assigns to RES the value of the INTEGER_CST T. */
diff --git a/gcc/graphite.c b/gcc/graphite.c
index ef7e64d..ee1d211 100644
--- a/gcc/graphite.c
+++ b/gcc/graphite.c
@@ -59,9 +59,7 @@ along with GCC; see the file COPYING3. If not see
#include <isl/options.h>
#include <isl/union_map.h>
-#include "graphite-poly.h"
-#include "graphite-scop-detection.h"
-#include "graphite-isl-ast-to-gimple.h"
+#include "graphite.h"
/* Print global statistics to FILE. */
diff --git a/gcc/graphite.h b/gcc/graphite.h
new file mode 100644
index 0000000..30272bb
--- /dev/null
+++ b/gcc/graphite.h
@@ -0,0 +1,471 @@
+/* Graphite polyhedral representation.
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
+ Contributed by Sebastian Pop <sebastian.pop@amd.com> and
+ Tobias Grosser <grosser@fim.uni-passau.de>.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_GRAPHITE_POLY_H
+#define GCC_GRAPHITE_POLY_H
+
+#include "sese.h"
+
+#ifndef HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS
+# define isl_stat int
+# define isl_stat_ok 0
+#endif
+
+typedef struct poly_dr *poly_dr_p;
+
+typedef struct poly_bb *poly_bb_p;
+
+typedef struct scop *scop_p;
+
+typedef unsigned graphite_dim_t;
+
+static inline graphite_dim_t scop_nb_params (scop_p);
+
+/* A data reference can write or read some memory or we
+ just know it may write some memory. */
+enum poly_dr_type
+{
+ PDR_READ,
+ /* PDR_MAY_READs are represented using PDR_READS. This does not
+ limit the expressiveness. */
+ PDR_WRITE,
+ PDR_MAY_WRITE
+};
+
+struct poly_dr
+{
+ /* An identifier for this PDR. */
+ int id;
+
+ /* The number of data refs identical to this one in the PBB. */
+ int nb_refs;
+
+ /* A pointer to the gimple stmt containing this reference. */
+ gimple *stmt;
+
+ /* A pointer to the PBB that contains this data reference. */
+ poly_bb_p pbb;
+
+ enum poly_dr_type type;
+
+ /* The access polyhedron contains the polyhedral space this data
+ reference will access.
+
+ The polyhedron contains these dimensions:
+
+ - The alias set (a):
+ Every memory access is classified in at least one alias set.
+
+ - The subscripts (s_0, ..., s_n):
+ The memory is accessed using zero or more subscript dimensions.
+
+ - The iteration domain (variables and parameters)
+
+ Do not hardcode the dimensions. Use the following accessor functions:
+ - pdr_alias_set_dim
+ - pdr_subscript_dim
+ - pdr_iterator_dim
+ - pdr_parameter_dim
+
+ Example:
+
+ | int A[1335][123];
+ | int *p = malloc ();
+ |
+ | k = ...
+ | for i
+ | {
+ | if (unknown_function ())
+ | p = A;
+ | ... = p[?][?];
+ | for j
+ | A[i][j+k] = m;
+ | }
+
+ The data access A[i][j+k] in alias set "5" is described like this:
+
+ | i j k a s0 s1 1
+ | 0 0 0 1 0 0 -5 = 0
+ |-1 0 0 0 1 0 0 = 0
+ | 0 -1 -1 0 0 1 0 = 0
+ | 0 0 0 0 1 0 0 >= 0 # The last four lines describe the
+ | 0 0 0 0 0 1 0 >= 0 # array size.
+ | 0 0 0 0 -1 0 1335 >= 0
+ | 0 0 0 0 0 -1 123 >= 0
+
+ The pointer "*p" in alias set "5" and "7" is described as a union of
+ polyhedron:
+
+
+ | i k a s0 1
+ | 0 0 1 0 -5 = 0
+ | 0 0 0 1 0 >= 0
+
+ "or"
+
+ | i k a s0 1
+ | 0 0 1 0 -7 = 0
+ | 0 0 0 1 0 >= 0
+
+ "*p" accesses all of the object allocated with 'malloc'.
+
+ The scalar data access "m" is represented as an array with zero subscript
+ dimensions.
+
+ | i j k a 1
+ | 0 0 0 -1 15 = 0
+
+ The difference between the graphite internal format for access data and
+ the OpenSop format is in the order of columns.
+ Instead of having:
+
+ | i j k a s0 s1 1
+ | 0 0 0 1 0 0 -5 = 0
+ |-1 0 0 0 1 0 0 = 0
+ | 0 -1 -1 0 0 1 0 = 0
+ | 0 0 0 0 1 0 0 >= 0 # The last four lines describe the
+ | 0 0 0 0 0 1 0 >= 0 # array size.
+ | 0 0 0 0 -1 0 1335 >= 0
+ | 0 0 0 0 0 -1 123 >= 0
+
+ In OpenScop we have:
+
+ | a s0 s1 i j k 1
+ | 1 0 0 0 0 0 -5 = 0
+ | 0 1 0 -1 0 0 0 = 0
+ | 0 0 1 0 -1 -1 0 = 0
+ | 0 1 0 0 0 0 0 >= 0 # The last four lines describe the
+ | 0 0 1 0 0 0 0 >= 0 # array size.
+ | 0 -1 0 0 0 0 1335 >= 0
+ | 0 0 -1 0 0 0 123 >= 0
+
+ The OpenScop access function is printed as follows:
+
+ | 1 # The number of disjunct components in a union of access functions.
+ | R C O I L P # Described bellow.
+ | a s0 s1 i j k 1
+ | 1 0 0 0 0 0 -5 = 0
+ | 0 1 0 -1 0 0 0 = 0
+ | 0 0 1 0 -1 -1 0 = 0
+ | 0 1 0 0 0 0 0 >= 0 # The last four lines describe the
+ | 0 0 1 0 0 0 0 >= 0 # array size.
+ | 0 -1 0 0 0 0 1335 >= 0
+ | 0 0 -1 0 0 0 123 >= 0
+
+ Where:
+ - R: Number of rows.
+ - C: Number of columns.
+ - O: Number of output dimensions = alias set + number of subscripts.
+ - I: Number of input dimensions (iterators).
+ - L: Number of local (existentially quantified) dimensions.
+ - P: Number of parameters.
+
+ In the example, the vector "R C O I L P" is "7 7 3 2 0 1". */
+ isl_map *accesses;
+ isl_set *subscript_sizes;
+};
+
+#define PDR_ID(PDR) (PDR->id)
+#define PDR_NB_REFS(PDR) (PDR->nb_refs)
+#define PDR_PBB(PDR) (PDR->pbb)
+#define PDR_TYPE(PDR) (PDR->type)
+#define PDR_ACCESSES(PDR) (NULL)
+
+void new_poly_dr (poly_bb_p, gimple *, enum poly_dr_type,
+ isl_map *, isl_set *);
+void free_poly_dr (poly_dr_p);
+void debug_pdr (poly_dr_p);
+void print_pdr (FILE *, poly_dr_p);
+
+static inline bool
+pdr_read_p (poly_dr_p pdr)
+{
+ return PDR_TYPE (pdr) == PDR_READ;
+}
+
+/* Returns true when PDR is a "write". */
+
+static inline bool
+pdr_write_p (poly_dr_p pdr)
+{
+ return PDR_TYPE (pdr) == PDR_WRITE;
+}
+
+/* Returns true when PDR is a "may write". */
+
+static inline bool
+pdr_may_write_p (poly_dr_p pdr)
+{
+ return PDR_TYPE (pdr) == PDR_MAY_WRITE;
+}
+
+/* POLY_BB represents a blackbox in the polyhedral model. */
+
+struct poly_bb
+{
+ /* Pointer to a basic block or a statement in the compiler. */
+ gimple_poly_bb_p black_box;
+
+ /* Pointer to the SCOP containing this PBB. */
+ scop_p scop;
+
+ /* The iteration domain of this bb. The layout of this polyhedron
+ is I|G with I the iteration domain, G the context parameters.
+
+ Example:
+
+ for (i = a - 7*b + 8; i <= 3*a + 13*b + 20; i++)
+ for (j = 2; j <= 2*i + 5; j++)
+ for (k = 0; k <= 5; k++)
+ S (i,j,k)
+
+ Loop iterators: i, j, k
+ Parameters: a, b
+
+ | i >= a - 7b + 8
+ | i <= 3a + 13b + 20
+ | j >= 2
+ | j <= 2i + 5
+ | k >= 0
+ | k <= 5
+
+ The number of variables in the DOMAIN may change and is not
+ related to the number of loops in the original code. */
+ isl_set *domain;
+
+ /* The data references we access. */
+ vec<poly_dr_p> drs;
+
+ /* The original scattering. */
+ isl_map *schedule;
+
+ /* The transformed scattering. */
+ isl_map *transformed;
+
+ /* A copy of the transformed scattering. */
+ isl_map *saved;
+
+ /* True when this PBB contains only a reduction statement. */
+ bool is_reduction;
+
+ /* The last basic block generated for this pbb. */
+ basic_block new_bb;
+};
+
+#define PBB_BLACK_BOX(PBB) ((gimple_poly_bb_p) PBB->black_box)
+#define PBB_SCOP(PBB) (PBB->scop)
+#define PBB_DRS(PBB) (PBB->drs)
+#define PBB_IS_REDUCTION(PBB) (PBB->is_reduction)
+
+extern poly_bb_p new_poly_bb (scop_p, gimple_poly_bb_p);
+extern void free_poly_bb (poly_bb_p);
+extern void debug_loop_vec (poly_bb_p);
+extern void print_pbb_domain (FILE *, poly_bb_p);
+extern void print_pbb (FILE *, poly_bb_p);
+extern void print_scop_context (FILE *, scop_p);
+extern void print_scop (FILE *, scop_p);
+extern void debug_pbb_domain (poly_bb_p);
+extern void debug_pbb (poly_bb_p);
+extern void print_pdrs (FILE *, poly_bb_p);
+extern void debug_pdrs (poly_bb_p);
+extern void debug_scop_context (scop_p);
+extern void debug_scop (scop_p);
+extern void print_scop_params (FILE *, scop_p);
+extern void debug_scop_params (scop_p);
+extern void print_iteration_domain (FILE *, poly_bb_p);
+extern void print_iteration_domains (FILE *, scop_p);
+extern void debug_iteration_domain (poly_bb_p);
+extern void debug_iteration_domains (scop_p);
+extern void print_isl_set (FILE *, isl_set *);
+extern void print_isl_map (FILE *, isl_map *);
+extern void print_isl_union_map (FILE *, isl_union_map *);
+extern void print_isl_aff (FILE *, isl_aff *);
+extern void print_isl_constraint (FILE *, isl_constraint *);
+extern void debug_isl_set (isl_set *);
+extern void debug_isl_map (isl_map *);
+extern void debug_isl_union_map (isl_union_map *);
+extern void debug_isl_aff (isl_aff *);
+extern void debug_isl_constraint (isl_constraint *);
+extern int scop_do_interchange (scop_p);
+extern int scop_do_strip_mine (scop_p, int);
+extern bool scop_do_block (scop_p);
+extern bool flatten_all_loops (scop_p);
+extern bool optimize_isl (scop_p);
+extern void pbb_number_of_iterations_at_time (poly_bb_p, graphite_dim_t, mpz_t);
+extern void debug_gmp_value (mpz_t);
+
+/* The basic block of the PBB. */
+
+static inline basic_block
+pbb_bb (poly_bb_p pbb)
+{
+ return GBB_BB (PBB_BLACK_BOX (pbb));
+}
+
+static inline int
+pbb_index (poly_bb_p pbb)
+{
+ return pbb_bb (pbb)->index;
+}
+
+/* The loop of the PBB. */
+
+static inline loop_p
+pbb_loop (poly_bb_p pbb)
+{
+ return gbb_loop (PBB_BLACK_BOX (pbb));
+}
+
+/* The scop that contains the PDR. */
+
+static inline scop_p
+pdr_scop (poly_dr_p pdr)
+{
+ return PBB_SCOP (PDR_PBB (pdr));
+}
+
+/* Set black box of PBB to BLACKBOX. */
+
+static inline void
+pbb_set_black_box (poly_bb_p pbb, gimple_poly_bb_p black_box)
+{
+ pbb->black_box = black_box;
+}
+
+/* A helper structure to keep track of data references, polyhedral BBs, and
+ alias sets. */
+
+struct dr_info
+{
+ enum {
+ invalid_alias_set = -1
+ };
+ /* The data reference. */
+ data_reference_p dr;
+
+ /* The polyhedral BB containing this DR. */
+ poly_bb_p pbb;
+
+ /* ALIAS_SET is the SCC number assigned by a graph_dfs of the alias graph.
+ -1 is an invalid alias set. */
+ int alias_set;
+
+ /* Construct a DR_INFO from a data reference DR, an ALIAS_SET, and a PBB. */
+ dr_info (data_reference_p dr, poly_bb_p pbb,
+ int alias_set = invalid_alias_set)
+ : dr (dr), pbb (pbb), alias_set (alias_set) {}
+};
+
+/* A SCOP is a Static Control Part of the program, simple enough to be
+ represented in polyhedral form. */
+struct scop
+{
+ /* A SCOP is defined as a SESE region. */
+ sese_info_p scop_info;
+
+ /* Number of parameters in SCoP. */
+ graphite_dim_t nb_params;
+
+ /* All the basic blocks in this scop that contain memory references
+ and that will be represented as statements in the polyhedral
+ representation. */
+ vec<poly_bb_p> pbbs;
+
+ /* All the data references in this scop. */
+ vec<dr_info> drs;
+
+ /* The context describes known restrictions concerning the parameters
+ and relations in between the parameters.
+
+ void f (int8_t a, uint_16_t b) {
+ c = 2 a + b;
+ ...
+ }
+
+ Here we can add these restrictions to the context:
+
+ -128 >= a >= 127
+ 0 >= b >= 65,535
+ c = 2a + b */
+ isl_set *param_context;
+
+ /* The context used internally by ISL. */
+ isl_ctx *isl_context;
+
+ /* The original dependence relations:
+ RAW are read after write dependences,
+ WAR are write after read dependences,
+ WAW are write after write dependences. */
+ isl_union_map *must_raw, *may_raw, *must_raw_no_source, *may_raw_no_source,
+ *must_war, *may_war, *must_war_no_source, *may_war_no_source,
+ *must_waw, *may_waw, *must_waw_no_source, *may_waw_no_source;
+};
+
+extern scop_p new_scop (edge, edge);
+extern void free_scop (scop_p);
+extern gimple_poly_bb_p new_gimple_poly_bb (basic_block, vec<data_reference_p>,
+ vec<scalar_use>, vec<tree>);
+extern void free_gimple_poly_bb (gimple_poly_bb_p);
+extern void print_generated_program (FILE *, scop_p);
+extern void debug_generated_program (scop_p);
+extern int unify_scattering_dimensions (scop_p);
+extern bool apply_poly_transforms (scop_p);
+
+/* Set the region of SCOP to REGION. */
+
+static inline void
+scop_set_region (scop_p scop, sese_info_p region)
+{
+ scop->scop_info = region;
+}
+
+/* Returns the number of parameters for SCOP. */
+
+static inline graphite_dim_t
+scop_nb_params (scop_p scop)
+{
+ return scop->nb_params;
+}
+
+/* Set the number of params of SCOP to NB_PARAMS. */
+
+static inline void
+scop_set_nb_params (scop_p scop, graphite_dim_t nb_params)
+{
+ scop->nb_params = nb_params;
+}
+
+isl_union_map *
+scop_get_dependences (scop_p scop);
+
+bool
+carries_deps (__isl_keep isl_union_map *schedule,
+ __isl_keep isl_union_map *deps,
+ int depth);
+
+extern bool build_poly_scop (scop_p);
+extern bool graphite_regenerate_ast_isl (scop_p);
+
+extern void build_scops (vec<scop_p> *);
+extern void dot_all_scops (vec<scop_p>);
+extern void dot_scop (scop_p);
+
+#endif
--
1.9.1