]> git.ipfire.org Git - thirdparty/gcc.git/commitdiff
gimplify.h (omp_construct_selector_matches): Declare.
authorJakub Jelinek <jakub@redhat.com>
Thu, 24 Oct 2019 22:29:09 +0000 (00:29 +0200)
committerJakub Jelinek <jakub@gcc.gnu.org>
Thu, 24 Oct 2019 22:29:09 +0000 (00:29 +0200)
* gimplify.h (omp_construct_selector_matches): Declare.
* gimplify.c (struct gimplify_omp_ctx): Add code member.
(gimplify_call_expr): Call omp_resolve_declare_variant and remap
called function if needed for flag_openmp.
(gimplify_scan_omp_clauses): Set ctx->code.
(omp_construct_selector_matches): New function.
* omp-general.h (omp_constructor_traits_to_codes,
omp_context_selector_matches, omp_resolve_declare_variant): Declare.
* omp-general.c (omp_constructor_traits_to_codes,
omp_context_selector_matches, omp_resolve_declare_variant): New
functions.
c-family/
* c-common.h (c_omp_context_selector_matches): Remove.
* c-omp.c (c_omp_context_selector_matches): Remove.
* c-attribs.c (c_common_attribute_table): Add
"omp declare target {host,nohost,block}" attributes.
c/
* c-parser.c (c_finish_omp_declare_variant): Use
omp_context_selector_matches instead of
c_omp_context_selector_matches.
* c-decl.c (c_decl_attributes): Add "omp declare target block"
attribute in between declare target and end declare target
pragmas.
cp/
* decl2.c (cplus_decl_attributes): Add "omp declare target block"
attribute in between declare target and end declare target
pragmas.
testsuite/
* c-c++-common/gomp/declare-variant-8.c: New test.

From-SVN: r277427

16 files changed:
gcc/ChangeLog
gcc/c-family/ChangeLog
gcc/c-family/c-attribs.c
gcc/c-family/c-common.h
gcc/c-family/c-omp.c
gcc/c/ChangeLog
gcc/c/c-decl.c
gcc/c/c-parser.c
gcc/cp/ChangeLog
gcc/cp/decl2.c
gcc/gimplify.c
gcc/gimplify.h
gcc/omp-general.c
gcc/omp-general.h
gcc/testsuite/ChangeLog
gcc/testsuite/c-c++-common/gomp/declare-variant-8.c [new file with mode: 0644]

index 9d1997500367ad9ec5774fbc1a9e1ec3610b7228..4d9e4709da2e8ff0efbfa81a59c83ca3564ddd55 100644 (file)
@@ -1,5 +1,17 @@
 2019-10-24  Jakub Jelinek  <jakub@redhat.com>
 
+       * gimplify.h (omp_construct_selector_matches): Declare.
+       * gimplify.c (struct gimplify_omp_ctx): Add code member.
+       (gimplify_call_expr): Call omp_resolve_declare_variant and remap
+       called function if needed for flag_openmp.
+       (gimplify_scan_omp_clauses): Set ctx->code.
+       (omp_construct_selector_matches): New function.
+       * omp-general.h (omp_constructor_traits_to_codes,
+       omp_context_selector_matches, omp_resolve_declare_variant): Declare.
+       * omp-general.c (omp_constructor_traits_to_codes,
+       omp_context_selector_matches, omp_resolve_declare_variant): New
+       functions.
+
        * config/arc/arc.c (hwloop_optimize): Add missing space in string
        literal.
        * config/rx/rx.c (rx_print_operand): Likewise.
index aeae1497b92c3c7d6b0c7f180ba92438e3684e3d..3b3d5744bac70cfc1e3c74183468c3698b6aa105 100644 (file)
@@ -1,3 +1,10 @@
+2019-10-24  Jakub Jelinek  <jakub@redhat.com>
+
+       * c-common.h (c_omp_context_selector_matches): Remove.
+       * c-omp.c (c_omp_context_selector_matches): Remove.
+       * c-attribs.c (c_common_attribute_table): Add
+       "omp declare target {host,nohost,block}" attributes.
+
 2019-10-17  JeanHeyd Meneide  <phdofthehouse@gmail.com>
 
        * c-lex.c (c_common_has_attribute): Update nodiscard value.
index ea273f89a8ef1f13a47e666f69ecc7bfd6f55d8a..1c9f28587fbb2348cc30e302e889a5a22906901a 100644 (file)
@@ -456,6 +456,12 @@ const struct attribute_spec c_common_attribute_table[] =
                              handle_omp_declare_target_attribute, NULL },
   { "omp declare target implicit", 0, 0, true, false, false, false,
                              handle_omp_declare_target_attribute, NULL },
+  { "omp declare target host", 0, 0, true, false, false, false,
+                             handle_omp_declare_target_attribute, NULL },
+  { "omp declare target nohost", 0, 0, true, false, false, false,
+                             handle_omp_declare_target_attribute, NULL },
+  { "omp declare target block", 0, 0, true, false, false, false,
+                             handle_omp_declare_target_attribute, NULL },
   { "alloc_align",           1, 1, false, true, true, false,
                              handle_alloc_align_attribute,
                              attr_alloc_exclusions },
index 3bc021b65d96321a2a2a6769d2ba7695945e5447..70771834502f9e72a8abb5b8ce57b7d5d43220a8 100644 (file)
@@ -1193,7 +1193,6 @@ extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree);
 extern tree c_omp_check_context_selector (location_t, tree);
 extern tree c_omp_get_context_selector (tree, const char *, const char *);
 extern void c_omp_mark_declare_variant (location_t, tree, tree);
-extern int c_omp_context_selector_matches (tree);
 
 /* Return next tree in the chain for chain_next walking of tree nodes.  */
 static inline tree
index 339818817e2805d9bf09a7e8a2bcc1e516f09ed4..4f5a6ed175adefe8694a9514a1ab76d4105e0fbe 100644 (file)
@@ -34,9 +34,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "memmodel.h"
 #include "attribs.h"
 #include "gimplify.h"
-#include "cgraph.h"
-#include "symbol-summary.h"
-#include "hsa-common.h"
 
 
 /* Complete a #pragma oacc wait construct.  LOC is the location of
@@ -2388,188 +2385,3 @@ c_omp_mark_declare_variant (location_t loc, tree variant, tree construct)
     error_at (loc, "%qD used as a variant with incompatible %<constructor%> "
                   "selector sets", variant);
 }
-
-/* Return 1 if context selector matches the current OpenMP context, 0
-   if it does not and -1 if it is unknown and need to be determined later.
-   Some properties can be checked right away during parsing (this routine),
-   others need to wait until the whole TU is parsed, others need to wait until
-   IPA, others until vectorization.  */
-
-int
-c_omp_context_selector_matches (tree ctx)
-{
-  int ret = 1;
-  for (tree t1 = ctx; t1; t1 = TREE_CHAIN (t1))
-    {
-      char set = IDENTIFIER_POINTER (TREE_PURPOSE (t1))[0];
-      if (set == 'c')
-       {
-         /* For now, ignore the construct set.  While something can be
-            determined already during parsing, we don't know until end of TU
-            whether additional constructs aren't added through declare variant
-            unless "omp declare variant variant" attribute exists already
-            (so in most of the cases), and we'd need to maintain set of
-            surrounding OpenMP constructs, which is better handled during
-            gimplification.  */
-         ret = -1;
-         continue;
-       }
-      for (tree t2 = TREE_VALUE (t1); t2; t2 = TREE_CHAIN (t2))
-       {
-         const char *sel = IDENTIFIER_POINTER (TREE_PURPOSE (t2));
-         switch (*sel)
-           {
-           case 'v':
-             if (set == 'i' && !strcmp (sel, "vendor"))
-               for (tree t3 = TREE_VALUE (t2); t3; t3 = TREE_CHAIN (t3))
-                 {
-                   const char *prop = IDENTIFIER_POINTER (TREE_PURPOSE (t3));
-                   if (!strcmp (prop, " score") || !strcmp (prop, "gnu"))
-                     continue;
-                   return 0;
-                 }
-             break;
-           case 'e':
-             if (set == 'i' && !strcmp (sel, "extension"))
-               /* We don't support any extensions right now.  */
-               return 0;
-             break;
-           case 'a':
-             if (set == 'i' && !strcmp (sel, "atomic_default_mem_order"))
-               {
-                 enum omp_memory_order omo
-                   = ((enum omp_memory_order)
-                      (omp_requires_mask
-                       & OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER));
-                 if (omo == OMP_MEMORY_ORDER_UNSPECIFIED)
-                   {
-                     /* We don't know yet, until end of TU.  */
-                     ret = -1;
-                     break;
-                   }
-                 tree t3 = TREE_VALUE (t2);
-                 const char *prop = IDENTIFIER_POINTER (TREE_PURPOSE (t3));
-                 if (!strcmp (prop, " score"))
-                   {
-                     t3 = TREE_CHAIN (t3);
-                     prop = IDENTIFIER_POINTER (TREE_PURPOSE (t3));
-                   }
-                 if (!strcmp (prop, "relaxed")
-                     && omo != OMP_MEMORY_ORDER_RELAXED)
-                   return 0;
-                 else if (!strcmp (prop, "seq_cst")
-                          && omo != OMP_MEMORY_ORDER_SEQ_CST)
-                   return 0;
-                 else if (!strcmp (prop, "acq_rel")
-                          && omo != OMP_MEMORY_ORDER_ACQ_REL)
-                   return 0;
-               }
-             if (set == 'd' && !strcmp (sel, "arch"))
-               /* For now, need a target hook.  */
-               ret = -1;
-             break;
-           case 'u':
-             if (set == 'i' && !strcmp (sel, "unified_address"))
-               {
-                 if ((omp_requires_mask & OMP_REQUIRES_UNIFIED_ADDRESS) == 0)
-                   ret = -1;
-                 break;
-               }
-             if (set == 'i' && !strcmp (sel, "unified_shared_memory"))
-               {
-                 if ((omp_requires_mask
-                      & OMP_REQUIRES_UNIFIED_SHARED_MEMORY) == 0)
-                   ret = -1;
-                 break;
-               }
-             break;
-           case 'd':
-             if (set == 'i' && !strcmp (sel, "dynamic_allocators"))
-               {
-                 if ((omp_requires_mask
-                      & OMP_REQUIRES_DYNAMIC_ALLOCATORS) == 0)
-                   ret = -1;
-                 break;
-               }
-             break;
-           case 'r':
-             if (set == 'i' && !strcmp (sel, "reverse_offload"))
-               {
-                 if ((omp_requires_mask & OMP_REQUIRES_REVERSE_OFFLOAD) == 0)
-                   ret = -1;
-                 break;
-               }
-             break;
-           case 'k':
-             if (set == 'd' && !strcmp (sel, "kind"))
-               for (tree t3 = TREE_VALUE (t2); t3; t3 = TREE_CHAIN (t3))
-                 {
-                   const char *prop = IDENTIFIER_POINTER (TREE_PURPOSE (t3));
-                   if (!strcmp (prop, "any"))
-                     continue;
-                   if (!strcmp (prop, "fpga"))
-                     return 0; /* Right now GCC doesn't support any fpgas.  */
-                   if (!strcmp (prop, "host"))
-                     {
-                       if (ENABLE_OFFLOADING || hsa_gen_requested_p ())
-                         ret = -1;
-                       continue;
-                     }
-                   if (!strcmp (prop, "nohost"))
-                     {
-                       if (ENABLE_OFFLOADING || hsa_gen_requested_p ())
-                         ret = -1;
-                       else
-                         return 0;
-                       continue;
-                     }
-                   if (!strcmp (prop, "cpu") || !strcmp (prop, "gpu"))
-                     {
-                       bool maybe_gpu = false;
-                       if (hsa_gen_requested_p ())
-                         maybe_gpu = true;
-                       else if (ENABLE_OFFLOADING)
-                         for (const char *c = getenv ("OFFLOAD_TARGET_NAMES");
-                              c; )
-                           {
-                             if (!strncmp (c, "nvptx", strlen ("nvptx"))
-                                 || !strncmp (c, "amdgcn", strlen ("amdgcn")))
-                               {
-                                 maybe_gpu = true;
-                                 break;
-                               }
-                             else if ((c = strchr (c, ',')))
-                               c++;
-                           }
-                       if (!maybe_gpu)
-                         {
-                           if (prop[0] == 'g')
-                             return 0;
-                         }
-                       else
-                         ret = -1;
-                       continue;
-                     }
-                   /* Any other kind doesn't match.  */
-                   return 0;
-                 }
-             break;
-           case 'i':
-             if (set == 'd' && !strcmp (sel, "isa"))
-               /* For now, need a target hook.  */
-               ret = -1;
-             break;
-           case 'c':
-             if (set == 'u' && !strcmp (sel, "condition"))
-               for (tree t3 = TREE_VALUE (t2); t3; t3 = TREE_CHAIN (t3))
-                 if (TREE_PURPOSE (t3) == NULL_TREE
-                     && integer_zerop (TREE_VALUE (t3)))
-                   return 0;
-             break;
-           default:
-             break;
-           }
-       }
-    }
-  return ret;
-}
index 0cf32f6e638e06c3f518da22a75b99a574761e4b..e8518f27494a65994ebae307b380a50c42c1fb55 100644 (file)
@@ -1,3 +1,12 @@
+2019-10-24  Jakub Jelinek  <jakub@redhat.com>
+
+       * c-parser.c (c_finish_omp_declare_variant): Use
+       omp_context_selector_matches instead of
+       c_omp_context_selector_matches.
+       * c-decl.c (c_decl_attributes): Add "omp declare target block"
+       attribute in between declare target and end declare target
+       pragmas.
+
 2019-10-15  Joseph Myers  <joseph@codesourcery.com>
 
        * c-parser.c (c_parser_attribute_any_word): Rename to
index f67033b82d25d5c45940de6ee221f76b714669db..c6c4a4d7aebc5c57f30d6a8d747ffe4c21b7ea3d 100644 (file)
@@ -4832,8 +4832,12 @@ c_decl_attributes (tree *node, tree attributes, int flags)
        attributes = tree_cons (get_identifier ("omp declare target implicit"),
                                NULL_TREE, attributes);
       else
-       attributes = tree_cons (get_identifier ("omp declare target"),
-                               NULL_TREE, attributes);
+       {
+         attributes = tree_cons (get_identifier ("omp declare target"),
+                                 NULL_TREE, attributes);
+         attributes = tree_cons (get_identifier ("omp declare target block"),
+                                 NULL_TREE, attributes);
+       }
     }
 
   /* Look up the current declaration with all the attributes merged
index 7618a46c8bcb18245fe92e8e97d53ee2a97ef25d..9589cc68c25b5b15bb364fdae56e24dedbe91601 100644 (file)
@@ -19489,7 +19489,7 @@ c_finish_omp_declare_variant (c_parser *parser, tree fndecl, tree parms)
          C_DECL_USED (variant) = 1;
          tree construct = c_omp_get_context_selector (ctx, "construct", NULL);
          c_omp_mark_declare_variant (match_loc, variant, construct);
-         if (c_omp_context_selector_matches (ctx))
+         if (omp_context_selector_matches (ctx))
            {
              tree attr
                = tree_cons (get_identifier ("omp declare variant base"),
index 33420f1289d390ae9000e0dd2c38589bb75c5907..78bbfb5b9372550b827526ccccf946da537917eb 100644 (file)
@@ -1,5 +1,9 @@
 2019-10-24  Jakub Jelinek  <jakub@redhat.com>
 
+       * decl2.c (cplus_decl_attributes): Add "omp declare target block"
+       attribute in between declare target and end declare target
+       pragmas.
+
        * call.c (convert_arg_to_ellipsis): Add missing space in string
        literal.
 
index 6d5e973b4874d87e1512550364788d2b4e487d13..cff11baef4690b8552666861b5659f32951794a2 100644 (file)
@@ -1555,8 +1555,12 @@ cplus_decl_attributes (tree *decl, tree attributes, int flags)
        attributes = tree_cons (get_identifier ("omp declare target implicit"),
                                NULL_TREE, attributes);
       else
-       attributes = tree_cons (get_identifier ("omp declare target"),
-                               NULL_TREE, attributes);
+       {
+         attributes = tree_cons (get_identifier ("omp declare target"),
+                                 NULL_TREE, attributes);
+         attributes = tree_cons (get_identifier ("omp declare target block"),
+                                 NULL_TREE, attributes);
+       }
     }
 
   if (processing_template_decl)
index 914bb8eb8d699efe7be36a72b43a59f8fecd9dbc..05ae2f1552bd5dffb503e17b45e85bfe5eb5cad6 100644 (file)
@@ -219,6 +219,7 @@ struct gimplify_omp_ctx
   location_t location;
   enum omp_clause_default_kind default_kind;
   enum omp_region_type region_type;
+  enum tree_code code;
   bool combined_loop;
   bool distribute;
   bool target_firstprivatize_array_bases;
@@ -3385,6 +3386,13 @@ gimplify_call_expr (tree *expr_p, gimple_seq *pre_p, bool want_value)
   /* Remember the original function pointer type.  */
   fnptrtype = TREE_TYPE (CALL_EXPR_FN (*expr_p));
 
+  if (flag_openmp && fndecl)
+    {
+      tree variant = omp_resolve_declare_variant (fndecl);
+      if (variant != fndecl)
+       CALL_EXPR_FN (*expr_p) = build1 (ADDR_EXPR, fnptrtype, variant);
+    }
+
   /* There is a sequence point before the call, so any side effects in
      the calling expression must occur before the actual call.  Force
      gimplify_expr to use an internal post queue.  */
@@ -8137,6 +8145,7 @@ gimplify_scan_omp_clauses (tree *list_p, gimple_seq *pre_p,
   int nowait = -1;
 
   ctx = new_omp_context (region_type);
+  ctx->code = code;
   outer_ctx = ctx->outer_context;
   if (code == OMP_TARGET)
     {
@@ -10324,6 +10333,99 @@ gimplify_adjust_omp_clauses (gimple_seq *pre_p, gimple_seq body, tree *list_p,
   delete_omp_context (ctx);
 }
 
+/* Return 0 if CONSTRUCTS selectors don't match the OpenMP context,
+   -1 if unknown yet (simd is involved, won't be known until vectorization)
+   and positive number if they do, the number is then the number of constructs
+   in the OpenMP context.  */
+
+HOST_WIDE_INT
+omp_construct_selector_matches (enum tree_code *constructs, int nconstructs)
+{
+  int matched = 0, cnt = 0;
+  bool simd_seen = false;
+  for (struct gimplify_omp_ctx *ctx = gimplify_omp_ctxp; ctx;)
+    {
+      if (((ctx->region_type & ORT_PARALLEL) && ctx->code == OMP_PARALLEL)
+         || ((ctx->region_type & (ORT_TARGET | ORT_IMPLICIT_TARGET | ORT_ACC))
+             == ORT_TARGET && ctx->code == OMP_TARGET)
+         || ((ctx->region_type & ORT_TEAMS) && ctx->code == OMP_TEAMS)
+         || (ctx->region_type == ORT_WORKSHARE && ctx->code == OMP_FOR)
+         || (ctx->region_type == ORT_SIMD
+             && ctx->code == OMP_SIMD
+             && !omp_find_clause (ctx->clauses, OMP_CLAUSE_BIND)))
+       {
+         ++cnt;
+         if (matched < nconstructs && ctx->code == constructs[matched])
+           {
+             if (ctx->code == OMP_SIMD)
+               {
+                 if (matched)
+                   return 0;
+                 simd_seen = true;
+               }
+             ++matched;
+           }
+         if (ctx->code == OMP_TARGET)
+           return matched < nconstructs ? 0 : simd_seen ? -1 : cnt;
+       }
+      else if (ctx->region_type == ORT_WORKSHARE
+              && ctx->code == OMP_LOOP
+              && ctx->outer_context
+              && ctx->outer_context->region_type == ORT_COMBINED_PARALLEL
+              && ctx->outer_context->outer_context
+              && ctx->outer_context->outer_context->code == OMP_LOOP
+              && ctx->outer_context->outer_context->distribute)
+       ctx = ctx->outer_context->outer_context;
+      ctx = ctx->outer_context;
+    }
+  if (cnt == 0
+      && constructs[0] == OMP_SIMD
+      && lookup_attribute ("omp declare simd",
+                          DECL_ATTRIBUTES (current_function_decl)))
+    {
+      /* Declare simd is a maybe case, it is supposed to be added only to the
+        omp-simd-clone.c added clones and not to the base function.  */
+      gcc_assert (matched == 0);
+      ++cnt;
+      simd_seen = true;
+      if (++matched == nconstructs)
+       return -1;
+    }
+  if (tree attr = lookup_attribute ("omp declare variant variant",
+                                   DECL_ATTRIBUTES (current_function_decl)))
+    {
+      enum tree_code variant_constructs[5];
+      int variant_nconstructs
+       = omp_constructor_traits_to_codes (TREE_VALUE (attr),
+                                          variant_constructs);
+      for (int i = 0; i < variant_nconstructs; i++)
+       {
+         ++cnt;
+         if (matched < nconstructs
+             && variant_constructs[i] == constructs[matched])
+           {
+             if (variant_constructs[i] == OMP_SIMD)
+               {
+                 if (matched)
+                   return 0;
+                 simd_seen = true;
+               }
+             ++matched;
+           }
+       }
+    }
+  if (lookup_attribute ("omp declare target block",
+                       DECL_ATTRIBUTES (current_function_decl)))
+    {
+      ++cnt;
+      if (matched < nconstructs && constructs[matched] == OMP_TARGET)
+       ++matched;
+    }
+  if (matched == nconstructs)
+    return simd_seen ? -1 : cnt;
+  return 0;
+}
+
 /* Gimplify OACC_CACHE.  */
 
 static void
index 6c997a769cd9a0745e7945e8bce69575e9008ebb..601b82b12bd1e373dfa36816d8972dda6a55113f 100644 (file)
@@ -75,6 +75,8 @@ extern void omp_firstprivatize_variable (struct gimplify_omp_ctx *, tree);
 extern enum gimplify_status gimplify_expr (tree *, gimple_seq *, gimple_seq *,
                                           bool (*) (tree), fallback_t);
 
+HOST_WIDE_INT omp_construct_selector_matches (enum tree_code *, int);
+
 extern void gimplify_type_sizes (tree, gimple_seq *);
 extern void gimplify_one_sizepos (tree *, gimple_seq *);
 extern gbind *gimplify_body (tree, bool);
index 1a78a70bd57056093effda7d33a6f2da3eaca0ec..9397b1951f8088470b28d1fee0a6ebcd4f57b117 100644 (file)
@@ -35,6 +35,11 @@ along with GCC; see the file COPYING3.  If not see
 #include "omp-general.h"
 #include "stringpool.h"
 #include "attribs.h"
+#include "gimplify.h"
+#include "cgraph.h"
+#include "symbol-summary.h"
+#include "hsa-common.h"
+#include "tree-pass.h"
 
 enum omp_requires omp_requires_mask;
 
@@ -538,6 +543,299 @@ omp_max_simt_vf (void)
   return 0;
 }
 
+/* Store the construct selectors as tree codes from last to first,
+   return their number.  */
+
+int
+omp_constructor_traits_to_codes (tree ctx, enum tree_code *constructs)
+{
+  int nconstructs = list_length (ctx);
+  int i = nconstructs - 1;
+  for (tree t2 = ctx; t2; t2 = TREE_CHAIN (t2), i--)
+    {
+      const char *sel = IDENTIFIER_POINTER (TREE_PURPOSE (t2));
+      if (!strcmp (sel, "target"))
+       constructs[i] = OMP_TARGET;
+      else if (!strcmp (sel, "teams"))
+       constructs[i] = OMP_TEAMS;
+      else if (!strcmp (sel, "parallel"))
+       constructs[i] = OMP_PARALLEL;
+      else if (!strcmp (sel, "for") || !strcmp (sel, "do"))
+       constructs[i] = OMP_FOR;
+      else if (!strcmp (sel, "simd"))
+       constructs[i] = OMP_SIMD;
+      else
+       gcc_unreachable ();
+    }
+  gcc_assert (i == -1);
+  return nconstructs;
+}
+
+/* Return 1 if context selector matches the current OpenMP context, 0
+   if it does not and -1 if it is unknown and need to be determined later.
+   Some properties can be checked right away during parsing (this routine),
+   others need to wait until the whole TU is parsed, others need to wait until
+   IPA, others until vectorization.  */
+
+int
+omp_context_selector_matches (tree ctx)
+{
+  int ret = 1;
+  for (tree t1 = ctx; t1; t1 = TREE_CHAIN (t1))
+    {
+      char set = IDENTIFIER_POINTER (TREE_PURPOSE (t1))[0];
+      if (set == 'c')
+       {
+         /* For now, ignore the construct set.  While something can be
+            determined already during parsing, we don't know until end of TU
+            whether additional constructs aren't added through declare variant
+            unless "omp declare variant variant" attribute exists already
+            (so in most of the cases), and we'd need to maintain set of
+            surrounding OpenMP constructs, which is better handled during
+            gimplification.  */
+         if (symtab->state == PARSING
+             || (cfun->curr_properties & PROP_gimple_any) != 0)
+           {
+             ret = -1;
+             continue;
+           }
+
+         enum tree_code constructs[5];
+         int nconstructs
+           = omp_constructor_traits_to_codes (TREE_VALUE (t1), constructs);
+         HOST_WIDE_INT r
+           = omp_construct_selector_matches (constructs, nconstructs);
+         if (r == 0)
+           return 0;
+         if (r == -1)
+           ret = -1;
+         continue;
+       }
+      for (tree t2 = TREE_VALUE (t1); t2; t2 = TREE_CHAIN (t2))
+       {
+         const char *sel = IDENTIFIER_POINTER (TREE_PURPOSE (t2));
+         switch (*sel)
+           {
+           case 'v':
+             if (set == 'i' && !strcmp (sel, "vendor"))
+               for (tree t3 = TREE_VALUE (t2); t3; t3 = TREE_CHAIN (t3))
+                 {
+                   const char *prop = IDENTIFIER_POINTER (TREE_PURPOSE (t3));
+                   if (!strcmp (prop, " score") || !strcmp (prop, "gnu"))
+                     continue;
+                   return 0;
+                 }
+             break;
+           case 'e':
+             if (set == 'i' && !strcmp (sel, "extension"))
+               /* We don't support any extensions right now.  */
+               return 0;
+             break;
+           case 'a':
+             if (set == 'i' && !strcmp (sel, "atomic_default_mem_order"))
+               {
+                 enum omp_memory_order omo
+                   = ((enum omp_memory_order)
+                      (omp_requires_mask
+                       & OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER));
+                 if (omo == OMP_MEMORY_ORDER_UNSPECIFIED)
+                   {
+                     /* We don't know yet, until end of TU.  */
+                     if (symtab->state == PARSING)
+                       {
+                         ret = -1;
+                         break;
+                       }
+                     else
+                       omo = OMP_MEMORY_ORDER_RELAXED;
+                   }
+                 tree t3 = TREE_VALUE (t2);
+                 const char *prop = IDENTIFIER_POINTER (TREE_PURPOSE (t3));
+                 if (!strcmp (prop, " score"))
+                   {
+                     t3 = TREE_CHAIN (t3);
+                     prop = IDENTIFIER_POINTER (TREE_PURPOSE (t3));
+                   }
+                 if (!strcmp (prop, "relaxed")
+                     && omo != OMP_MEMORY_ORDER_RELAXED)
+                   return 0;
+                 else if (!strcmp (prop, "seq_cst")
+                          && omo != OMP_MEMORY_ORDER_SEQ_CST)
+                   return 0;
+                 else if (!strcmp (prop, "acq_rel")
+                          && omo != OMP_MEMORY_ORDER_ACQ_REL)
+                   return 0;
+               }
+             if (set == 'd' && !strcmp (sel, "arch"))
+               /* For now, need a target hook.  */
+               ret = -1;
+             break;
+           case 'u':
+             if (set == 'i' && !strcmp (sel, "unified_address"))
+               {
+                 if ((omp_requires_mask & OMP_REQUIRES_UNIFIED_ADDRESS) == 0)
+                   {
+                     if (symtab->state == PARSING)
+                       ret = -1;
+                     else
+                       return 0;
+                   }
+                 break;
+               }
+             if (set == 'i' && !strcmp (sel, "unified_shared_memory"))
+               {
+                 if ((omp_requires_mask
+                      & OMP_REQUIRES_UNIFIED_SHARED_MEMORY) == 0)
+                   {
+                     if (symtab->state == PARSING)
+                       ret = -1;
+                     else
+                       return 0;
+                   }
+                 break;
+               }
+             break;
+           case 'd':
+             if (set == 'i' && !strcmp (sel, "dynamic_allocators"))
+               {
+                 if ((omp_requires_mask
+                      & OMP_REQUIRES_DYNAMIC_ALLOCATORS) == 0)
+                   {
+                     if (symtab->state == PARSING)
+                       ret = -1;
+                     else
+                       return 0;
+                   }
+                 break;
+               }
+             break;
+           case 'r':
+             if (set == 'i' && !strcmp (sel, "reverse_offload"))
+               {
+                 if ((omp_requires_mask & OMP_REQUIRES_REVERSE_OFFLOAD) == 0)
+                   {
+                     if (symtab->state == PARSING)
+                       ret = -1;
+                     else
+                       return 0;
+                   }
+                 break;
+               }
+             break;
+           case 'k':
+             if (set == 'd' && !strcmp (sel, "kind"))
+               for (tree t3 = TREE_VALUE (t2); t3; t3 = TREE_CHAIN (t3))
+                 {
+                   const char *prop = IDENTIFIER_POINTER (TREE_PURPOSE (t3));
+                   if (!strcmp (prop, "any"))
+                     continue;
+                   if (!strcmp (prop, "fpga"))
+                     return 0; /* Right now GCC doesn't support any fpgas.  */
+                   if (!strcmp (prop, "host"))
+                     {
+                       if (ENABLE_OFFLOADING || hsa_gen_requested_p ())
+                         ret = -1;
+                       continue;
+                     }
+                   if (!strcmp (prop, "nohost"))
+                     {
+                       if (ENABLE_OFFLOADING || hsa_gen_requested_p ())
+                         ret = -1;
+                       else
+                         return 0;
+                       continue;
+                     }
+                   if (!strcmp (prop, "cpu") || !strcmp (prop, "gpu"))
+                     {
+                       bool maybe_gpu = false;
+                       if (hsa_gen_requested_p ())
+                         maybe_gpu = true;
+                       else if (ENABLE_OFFLOADING)
+                         for (const char *c = getenv ("OFFLOAD_TARGET_NAMES");
+                              c; )
+                           {
+                             if (!strncmp (c, "nvptx", strlen ("nvptx"))
+                                 || !strncmp (c, "amdgcn", strlen ("amdgcn")))
+                               {
+                                 maybe_gpu = true;
+                                 break;
+                               }
+                             else if ((c = strchr (c, ',')))
+                               c++;
+                           }
+                       if (!maybe_gpu)
+                         {
+                           if (prop[0] == 'g')
+                             return 0;
+                         }
+                       else
+                         ret = -1;
+                       continue;
+                     }
+                   /* Any other kind doesn't match.  */
+                   return 0;
+                 }
+             break;
+           case 'i':
+             if (set == 'd' && !strcmp (sel, "isa"))
+               /* For now, need a target hook.  */
+               ret = -1;
+             break;
+           case 'c':
+             if (set == 'u' && !strcmp (sel, "condition"))
+               for (tree t3 = TREE_VALUE (t2); t3; t3 = TREE_CHAIN (t3))
+                 if (TREE_PURPOSE (t3) == NULL_TREE)
+                   {
+                     if (integer_zerop (TREE_VALUE (t3)))
+                       return 0;
+                     if (integer_nonzerop (TREE_VALUE (t3)))
+                       break;
+                     ret = -1;
+                   }
+             break;
+           default:
+             break;
+           }
+       }
+    }
+  return ret;
+}
+
+/* Try to resolve declare variant, return the variant decl if it should
+   be used instead of base, or base otherwise.  */
+
+tree
+omp_resolve_declare_variant (tree base)
+{
+  tree variant = NULL_TREE;
+  for (tree attr = DECL_ATTRIBUTES (base); attr; attr = TREE_CHAIN (attr))
+    {
+      attr = lookup_attribute ("omp declare variant base", attr);
+      if (attr == NULL_TREE)
+       break;
+      switch (omp_context_selector_matches (TREE_VALUE (TREE_VALUE (attr))))
+       {
+       case 0:
+         /* No match, ignore.  */
+         break;
+       case -1:
+         /* Needs to be deferred.  */
+         return base;
+       default:
+         /* FIXME: Scoring not implemented yet, so just resolve it
+            if there is a single variant only.  */
+         if (variant)
+           return base;
+         if (TREE_CODE (TREE_PURPOSE (TREE_VALUE (attr))) == FUNCTION_DECL)
+           variant = TREE_PURPOSE (TREE_VALUE (attr));
+         else
+           return base;
+       }
+    }
+  return variant ? variant : base;
+}
+
+
 /* Encode an oacc launch argument.  This matches the GOMP_LAUNCH_PACK
    macro on gomp-constants.h.  We do not check for overflow.  */
 
index 7cd1d216fc0bfb8af348d0e9e725edfeac2b2577..c0c294d29f483f7a7e2f979698b318e7a053c00e 100644 (file)
@@ -84,6 +84,9 @@ extern void omp_extract_for_data (gomp_for *for_stmt, struct omp_for_data *fd,
 extern gimple *omp_build_barrier (tree lhs);
 extern poly_uint64 omp_max_vf (void);
 extern int omp_max_simt_vf (void);
+extern int omp_constructor_traits_to_codes (tree, enum tree_code *);
+extern int omp_context_selector_matches (tree);
+extern tree omp_resolve_declare_variant (tree);
 extern tree oacc_launch_pack (unsigned code, tree device, unsigned op);
 extern tree oacc_replace_fn_attrib_attr (tree attribs, tree dims);
 extern void oacc_replace_fn_attrib (tree fn, tree dims);
index e999a4781d17318a12613c4aca976f6b65a149d5..8e652ab3cbf3a463ffd092e8d6357fcaf953d49c 100644 (file)
@@ -1,3 +1,7 @@
+2019-10-24  Jakub Jelinek  <jakub@redhat.com>
+
+       * c-c++-common/gomp/declare-variant-8.c: New test.
+
 2019-10-24  Andreas Krebbel  <krebbel@linux.ibm.com>
 
        * gcc.dg/ipa/ipa-sra-19.c: Remove dg-skip-if. Add argument type to
diff --git a/gcc/testsuite/c-c++-common/gomp/declare-variant-8.c b/gcc/testsuite/c-c++-common/gomp/declare-variant-8.c
new file mode 100644 (file)
index 0000000..792e56c
--- /dev/null
@@ -0,0 +1,125 @@
+/* { dg-do compile { target c } } */
+/* { dg-additional-options "-fdump-tree-gimple" } */
+
+void f01 (void);
+#pragma omp declare variant (f01) match (user={condition(6 == 7)},implementation={vendor(gnu)})
+void f02 (void);
+void f03 (void);
+#pragma omp declare variant (f03) match (user={condition(6 == 6)},implementation={atomic_default_mem_order(seq_cst)})
+void f04 (void);
+void f05 (void);
+#pragma omp declare variant (f05) match (user={condition(1)},implementation={atomic_default_mem_order(relaxed)})
+void f06 (void);
+#pragma omp requires atomic_default_mem_order(seq_cst)
+void f07 (void);
+#pragma omp declare variant (f07) match (construct={parallel,for},device={kind(any)})
+void f08 (void);
+void f09 (void);
+#pragma omp declare variant (f09) match (construct={parallel,for},implementation={vendor(gnu)})
+void f10 (void);
+void f11 (void);
+#pragma omp declare variant (f11) match (construct={parallel,for})
+void f12 (void);
+void f13 (void);
+#pragma omp declare variant (f13) match (construct={parallel,for})
+void f14 (void);
+#pragma omp declare target to (f13, f14)
+void f15 (void);
+#pragma omp declare variant (f15) match (implementation={vendor(llvm)})
+void f16 (void);
+void f17 (void);
+#pragma omp declare variant (f17) match (construct={target,parallel})
+void f18 (void);
+void f19 (void);
+#pragma omp declare variant (f19) match (construct={target,parallel})
+void f20 (void);
+void f21 (void);
+#pragma omp declare variant (f21) match (construct={teams,parallel})
+void f22 (void);
+void f23 (void);
+#pragma omp declare variant (f23) match (construct={teams,parallel,for})
+void f24 (void);
+void f25 (void);
+#pragma omp declare variant (f25) match (construct={teams,parallel})
+void f26 (void);
+void f27 (void);
+#pragma omp declare variant (f27) match (construct={teams,parallel,for})
+void f28 (void);
+void f29 (void);
+#pragma omp declare variant (f29) match (implementation={vendor(gnu)})
+void f30 (void);
+void f31 (void);
+#pragma omp declare variant (f31) match (construct={teams,parallel,for})
+void f32 (void);
+
+void
+test1 (void)
+{
+  int i;
+  f02 ();      /* { dg-final { scan-tree-dump-times "f02 \\\(\\\);" 1 "gimple" } } */
+  f04 ();      /* { dg-final { scan-tree-dump-times "f03 \\\(\\\);" 1 "gimple" } } */
+  f06 ();      /* { dg-final { scan-tree-dump-times "f06 \\\(\\\);" 1 "gimple" } } */
+  #pragma omp parallel
+  #pragma omp for
+  for (i = 0; i < 1; i++)
+    f08 ();    /* { dg-final { scan-tree-dump-times "f07 \\\(\\\);" 1 "gimple" } } */
+  #pragma omp parallel for
+  for (i = 0; i < 1; i++)
+    f10 ();    /* { dg-final { scan-tree-dump-times "f09 \\\(\\\);" 1 "gimple" } } */
+  #pragma omp for
+  for (i = 0; i < 1; i++)
+    #pragma omp parallel
+    f12 ();    /* { dg-final { scan-tree-dump-times "f12 \\\(\\\);" 1 "gimple" } } */
+  #pragma omp parallel
+  #pragma omp target
+  #pragma omp for
+  for (i = 0; i < 1; i++)
+    f14 ();    /* { dg-final { scan-tree-dump-times "f14 \\\(\\\);" 1 "gimple" } } */
+  f16 ();      /* { dg-final { scan-tree-dump-times "f16 \\\(\\\);" 1 "gimple" } } */
+}
+
+#pragma omp declare target
+void
+test2 (void)
+{
+  #pragma omp parallel
+  f18 ();      /* { dg-final { scan-tree-dump-times "f17 \\\(\\\);" 1 "gimple" } } */
+}
+#pragma omp end declare target
+
+void test3 (void);
+#pragma omp declare target to (test3)
+
+void
+test3 (void)
+{
+  #pragma omp parallel
+  f20 ();      /* { dg-final { scan-tree-dump-times "f20 \\\(\\\);" 1 "gimple" } } */
+}
+
+void
+f21 (void)
+{
+  int i;
+  #pragma omp for
+  for (i = 0; i < 1; i++)
+    f24 ();    /* { dg-final { scan-tree-dump-times "f23 \\\(\\\);" 1 "gimple" } } */
+}
+
+void
+f26 (void)
+{
+  int i;
+  #pragma omp for
+  for (i = 0; i < 1; i++)
+    f28 ();    /* { dg-final { scan-tree-dump-times "f28 \\\(\\\);" 1 "gimple" } } */
+}
+
+void
+f29 (void)
+{
+  int i;
+  #pragma omp for
+  for (i = 0; i < 1; i++)
+    f32 ();    /* { dg-final { scan-tree-dump-times "f32 \\\(\\\);" 1 "gimple" } } */
+}