Implemented Cilk Plus Array Notation for C Compiler.

gcc/ChangeLog
2013-05-28  Balaji V. Iyer  <balaji.v.iyer@intel.com>

	* doc/extend.texi (C Extensions): Added documentation about Cilk 
Plus
	array notation built-in reduction functions.
	* doc/passes.texi (Passes): Added documentation about changes done
	for Cilk Plus.
	* doc/invoke.texi (C Dialect Options): Added documentation about
	the -fcilkplus flag.
	* Makefile.in (C_COMMON_OBJS): Added 
c-family/array-notation-common.o.
	(BUILTINS_DEF): Depend on cilkplus.def.
	* builtins.def: Include cilkplus.def.  Define 
DEF_CILKPLUS_BUILTIN.
	* builtin-types.def: Define BT_FN_INT_PTR_PTR_PTR.
	* cilkplus.def: New file.

gcc/c-family/ChangeLog
2013-05-28  Balaji V. Iyer  <balaji.v.iyer@intel.com>

	* c-common.c (c_define_builtins): When cilkplus is enabled, the
	function array_notation_init_builtins is called.
	(c_common_init_ts): Added ARRAY_NOTATION_REF as typed.
	* c-common.def (ARRAY_NOTATION_REF): New tree.
	* c-common.h (build_array_notation_expr): New function declaration.
	(build_array_notation_ref): Likewise.
	(extract_sec_implicit_index_arg): New extern declaration.
	(is_sec_implicit_index_fn): Likewise.
	(ARRAY_NOTATION_CHECK): New define.
	(ARRAY_NOTATION_ARRAY): Likewise.
	(ARRAY_NOTATION_START): Likewise.
	(ARRAY_NOTATION_LENGTH): Likewise.
	(ARRAY_NOTATION_STRIDE): Likewise.
	* c-pretty-print.c (pp_c_postifix_expression): Added a new case for
	ARRAY_NOTATION_REF.
	(pp_c_expression): Likewise.
	* c.opt (flag_enable_cilkplus): New flag.
	* array-notation-common.c: New file.

gcc/c/ChangeLog
2013-05-28  Balaji V. Iyer  <balaji.v.iyer@intel.com>

	* c-typeck.c (build_array_ref): Added a check to see if array's
	index is greater than one.  If true, then emit an error.
	(build_function_call_vec): Exclude error reporting and checking
	for builtin array-notation functions.
	(convert_arguments): Likewise.
	(c_finish_return): Added a check for array notations as a return
	expression.  If true, then emit an error.
	(c_finish_loop): Added a check for array notations in a loop
	condition.  If true then emit an error.
	(lvalue_p): Added a ARRAY_NOTATION_REF case.
	(build_binary_op): Added a check for array notation expr inside
	op1 and op0.  If present, we call another function to find correct
	type.
	* Make-lang.in (C_AND_OBJC_OBJS): Added c-array-notation.o.
	* c-parser.c (c_parser_compound_statement): Check if array
	notation code is used in tree, if so, then transform them into
	appropriate C code.
	(c_parser_expr_no_commas): Check if array notation is used in LHS
	or RHS, if so, then build array notation expression instead of
	regular modify.
	(c_parser_postfix_expression_after_primary): Added a check for
	colon(s) after square braces, if so then handle it like an array
	notation.  Also, break up array notations in unary op if found.
	(c_parser_direct_declarator_inner): Added a check for array
	notation.
	(c_parser_compound_statement): Added a check for array notation in
	a stmt.  If one is present, then expand array notation expr.
	(c_parser_if_statement): Likewise.
	(c_parser_switch_statement): Added a check for array notations in
	a switch statement's condition.  If true, then output an error.
	(c_parser_while_statement): Similarly, but for a while.
	(c_parser_do_statement): Similarly, but for a do-while.
	(c_parser_for_statement): Similarly, but for a for-loop.
	(c_parser_unary_expression): Check if array notation is used in a
	pre-increment or pre-decrement expression.  If true, then expand
	them.
	(c_parser_array_notation): New function.
	* c-array-notation.c: New file.
	* c-tree.h (is_cilkplus_reduce_builtin): Protoize.

gcc/testsuite/ChangeLog
2013-05-28  Balaji V. Iyer  <balaji.v.iyer@intel.com>

	* c-c++-common/cilk-plus/AN/array_test1.c: New test.
	* c-c++-common/cilk-plus/AN/array_test2.c: Likewise.
	* c-c++-common/cilk-plus/AN/array_test_ND.c: Likewise.
	* c-c++-common/cilk-plus/AN/builtin_func_double.c: Likewise.
	* c-c++-common/cilk-plus/AN/builtin_func_double2.c: Likewise.
	* c-c++-common/cilk-plus/AN/gather-scatter-errors.c: Likewise.
	* c-c++-common/cilk-plus/AN/if_test.c: Likewise.
	* c-c++-common/cilk-plus/AN/sec_implicit_ex.c: Likewise.
	* c-c++-common/cilk-plus/AN/decl-ptr-colon.c: Likewise.
	* c-c++-common/cilk-plus/AN/dimensionless-arrays.c: Likewise.
	* c-c++-common/cilk-plus/AN/fn_ptr.c: Likewise.
	* c-c++-common/cilk-plus/AN/fp_triplet_values.c: Likewise.
	* c-c++-common/cilk-plus/AN/gather-scatter.c: Likewise.
	* c-c++-common/cilk-plus/AN/misc.c: Likewise.
	* c-c++-common/cilk-plus/AN/parser_errors.c: Likewise.
	* c-c++-common/cilk-plus/AN/parser_errors2.c: Likewise.
	* c-c++-common/cilk-plus/AN/parser_errors3.c: Likewise.
	* c-c++-common/cilk-plus/AN/parser_errors4.c: Likewise.
	* c-c++-common/cilk-plus/AN/rank_mismatch.c: Likewise.
	* c-c++-common/cilk-plus/AN/rank_mismatch2.c: Likewise.
	* c-c++-common/cilk-plus/AN/rank_mismatch3.c: Likewise.
	* c-c++-common/cilk-plus/AN/sec_implicit.c: Likewise.
	* c-c++-common/cilk-plus/AN/sec_implicit2.c: Likewise.
	* c-c++-common/cilk-plus/AN/sec_reduce_max_min_ind.c: Likewise.
	* c-c++-common/cilk-plus/AN/tst_lngth.c: Likewise.
	* c-c++-common/cilk-plus/AN/vla.c: Likewise.
	* c-c++-common/cilk-plus/AN/an-if.c: Likewise.
	* c-c++-common/cilk-plus/AN/builtin_fn_custom.c: Likewise.
	* c-c++-common/cilk-plus/AN/builtin_fn_mutating.c: Likewise.
	* c-c++-common/cilk-plus/AN/comma_exp.c: Likewise.
	* c-c++-common/cilk-plus/AN/conditional.c: Likewise.
	* c-c++-common/cilk-plus/AN/exec-once.c: Likewise.
	* c-c++-common/cilk-plus/AN/exec-once2.c: Likewise.
	* c-c++-common/cilk-plus/AN/gather_scatter.c: Likewise.
	* c-c++-common/cilk-plus/AN/n-ptr-test.c: Likewise.
	* c-c++-common/cilk-plus/AN/side-effects-1.c: Likewise.
	* c-c++-common/cilk-plus/AN/test_builtin_return.c: Likewise.
	* c-c++-common/cilk-plus/AN/test_sec_limits.c: Likewise.
	* gcc.dg/cilk-plus/cilk-plus.exp: New script.

From-SVN: r199389

1 files changed, 76 insertions, 0 deletions

diff --git a/gcc/c-family/array-notation-common.c b/gcc/c-family/array-notation-common.c
new file mode 100644
index 0000000..1d28846
--- /dev/null
+++ b/gcc/c-family/array-notation-common.c
@@ -0,0 +1,76 @@
+/* This file is part of the Intel(R) Cilk(TM) Plus support
+   This file contains the builtin functions for Array
+   notations.
+   Copyright (C) 2013  Free Software Foundation, Inc.
+   Contributed by Balaji V. Iyer <balaji.v.iyer@intel.com>,
+                  Intel Corporation
+
+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/>.  */
+
+#include "config.h"
+#include "system.h" 
+#include "coretypes.h"
+#include "tree.h"
+#include "langhooks.h" 
+#include "tree-iterator.h"
+#include "diagnostic-core.h"
+
+
+/* Returns true if the function call in FNDECL is  __sec_implicit_index.  */
+
+bool
+is_sec_implicit_index_fn (tree fndecl)
+{
+  if (TREE_CODE (fndecl) == ADDR_EXPR)
+    fndecl = TREE_OPERAND (fndecl, 0);
+
+  return
+    (TREE_CODE (fndecl) == FUNCTION_DECL
+     && DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL
+     && DECL_FUNCTION_CODE (fndecl) == BUILT_IN_CILKPLUS_SEC_IMPLICIT_INDEX);
+}
+
+/* Returns the first and only argument for FN, which should be a
+   sec_implicit_index function.  FN's location in the source file is as 
+   indicated by LOCATION.  The argument to FN must be a constant integer
+   expression, otherwise returns -1.  */
+
+HOST_WIDE_INT
+extract_sec_implicit_index_arg (location_t location, tree fn)
+{
+  tree fn_arg;
+  HOST_WIDE_INT return_int = 0;
+
+  if (TREE_CODE (fn) == CALL_EXPR)
+    {
+      fn_arg = CALL_EXPR_ARG (fn, 0);
+      if (TREE_CODE (fn_arg) == INTEGER_CST)
+	return_int = int_cst_value (fn_arg);
+      else
+	{
+	  /* If the location is unknown, and if fn has a location, then use that
+	     information so that the user has a better idea where the error
+	     could be.  */
+	  if (location == UNKNOWN_LOCATION && EXPR_HAS_LOCATION (fn))
+	    location = EXPR_LOCATION (fn);
+	  error_at (location, "__sec_implicit_index parameter must be an " 
+		    "integer constant expression");
+	  return -1;
+	}
+    }
+  return return_int;
+}