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Diffstat (limited to 'gcc/config/spu/spu-c.c')
| -rw-r--r-- | gcc/config/spu/spu-c.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/gcc/config/spu/spu-c.c b/gcc/config/spu/spu-c.c new file mode 100644 index 000000000..905030d5e --- /dev/null +++ b/gcc/config/spu/spu-c.c @@ -0,0 +1,234 @@ +/* Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. + + This file 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 of the License, or (at your option) + any later version. + + This file 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 "tm.h" +#include "cpplib.h" +#include "tree.h" +#include "c-family/c-common.h" +#include "c-family/c-pragma.h" +#include "tm_p.h" +#include "langhooks.h" +#include "target.h" + + +/* Keep the vector keywords handy for fast comparisons. */ +static GTY(()) tree __vector_keyword; +static GTY(()) tree vector_keyword; + +static cpp_hashnode * +spu_categorize_keyword (const cpp_token *tok) +{ + if (tok->type == CPP_NAME) + { + cpp_hashnode *ident = tok->val.node.node; + + if (ident == C_CPP_HASHNODE (vector_keyword) + || ident == C_CPP_HASHNODE (__vector_keyword)) + return C_CPP_HASHNODE (__vector_keyword); + else + return ident; + } + return 0; +} + +/* Called to decide whether a conditional macro should be expanded. + Since we have exactly one such macro (i.e, 'vector'), we do not + need to examine the 'tok' parameter. */ + +static cpp_hashnode * +spu_macro_to_expand (cpp_reader *pfile, const cpp_token *tok) +{ + cpp_hashnode *expand_this = tok->val.node.node; + cpp_hashnode *ident; + + ident = spu_categorize_keyword (tok); + if (ident == C_CPP_HASHNODE (__vector_keyword)) + { + tok = cpp_peek_token (pfile, 0); + ident = spu_categorize_keyword (tok); + + if (ident) + { + enum rid rid_code = (enum rid)(ident->rid_code); + if (ident->type == NT_MACRO) + { + (void) cpp_get_token (pfile); + tok = cpp_peek_token (pfile, 0); + ident = spu_categorize_keyword (tok); + if (ident) + rid_code = (enum rid)(ident->rid_code); + } + + if (rid_code == RID_UNSIGNED || rid_code == RID_LONG + || rid_code == RID_SHORT || rid_code == RID_SIGNED + || rid_code == RID_INT || rid_code == RID_CHAR + || rid_code == RID_FLOAT || rid_code == RID_DOUBLE) + expand_this = C_CPP_HASHNODE (__vector_keyword); + } + } + return expand_this; +} + +/* target hook for resolve_overloaded_builtin(). Returns a function call + RTX if we can resolve the overloaded builtin */ +tree +spu_resolve_overloaded_builtin (location_t loc, tree fndecl, void *passed_args) +{ +#define SCALAR_TYPE_P(t) (INTEGRAL_TYPE_P (t) \ + || SCALAR_FLOAT_TYPE_P (t) \ + || POINTER_TYPE_P (t)) + VEC(tree,gc) *fnargs = (VEC(tree,gc) *) passed_args; + unsigned int nargs = VEC_length (tree, fnargs); + int new_fcode, fcode = DECL_FUNCTION_CODE (fndecl); + struct spu_builtin_description *desc; + tree match = NULL_TREE; + + /* The vector types are not available if the backend is not initialized. */ + gcc_assert (!flag_preprocess_only); + + desc = &spu_builtins[fcode]; + if (desc->type != B_OVERLOAD) + return NULL_TREE; + + /* Compare the signature of each internal builtin function with the + function arguments until a match is found. */ + + for (new_fcode = fcode + 1; spu_builtins[new_fcode].type == B_INTERNAL; + new_fcode++) + { + tree decl = targetm.builtin_decl (new_fcode, true); + tree params = TYPE_ARG_TYPES (TREE_TYPE (decl)); + tree param; + bool all_scalar; + unsigned int p; + + /* Check whether all parameters are scalar. */ + all_scalar = true; + for (param = params; param != void_list_node; param = TREE_CHAIN (param)) + if (!SCALAR_TYPE_P (TREE_VALUE (param))) + all_scalar = false; + + for (param = params, p = 0; + param != void_list_node; + param = TREE_CHAIN (param), p++) + { + tree var, arg_type, param_type = TREE_VALUE (param); + + if (p >= nargs) + { + error ("insufficient arguments to overloaded function %s", + desc->name); + return error_mark_node; + } + + var = VEC_index (tree, fnargs, p); + + if (TREE_CODE (var) == NON_LVALUE_EXPR) + var = TREE_OPERAND (var, 0); + + if (TREE_CODE (var) == ERROR_MARK) + return NULL_TREE; /* Let somebody else deal with the problem. */ + + arg_type = TREE_TYPE (var); + + /* The intrinsics spec does not specify precisely how to + resolve generic intrinsics. We require an exact match + for vector types and let C do it's usual parameter type + checking/promotions for scalar arguments, except for the + first argument of intrinsics which don't have a vector + parameter. */ + if ((!SCALAR_TYPE_P (param_type) + || !SCALAR_TYPE_P (arg_type) + || (all_scalar && p == 0)) + && !lang_hooks.types_compatible_p (param_type, arg_type)) + break; + } + if (param == void_list_node) + { + if (p != nargs) + { + error ("too many arguments to overloaded function %s", + desc->name); + return error_mark_node; + } + + match = decl; + break; + } + } + + if (match == NULL_TREE) + { + error ("parameter list does not match a valid signature for %s()", + desc->name); + return error_mark_node; + } + + return build_function_call_vec (loc, match, fnargs, NULL); +#undef SCALAR_TYPE_P +} + + +void +spu_cpu_cpp_builtins (struct cpp_reader *pfile) +{ + cpp_define (pfile, "__SPU__"); + cpp_assert (pfile, "cpu=spu"); + cpp_assert (pfile, "machine=spu"); + if (spu_arch == PROCESSOR_CELLEDP) + cpp_define (pfile, "__SPU_EDP__"); + cpp_define (pfile, "__vector=__attribute__((__spu_vector__))"); + switch (spu_ea_model) + { + case 32: + cpp_define (pfile, "__EA32__"); + break; + case 64: + cpp_define (pfile, "__EA64__"); + break; + default: + gcc_unreachable (); + } + + if (!flag_iso) + { + /* Define this when supporting context-sensitive keywords. */ + cpp_define (pfile, "__VECTOR_KEYWORD_SUPPORTED__"); + cpp_define (pfile, "vector=vector"); + + /* Initialize vector keywords. */ + __vector_keyword = get_identifier ("__vector"); + C_CPP_HASHNODE (__vector_keyword)->flags |= NODE_CONDITIONAL; + vector_keyword = get_identifier ("vector"); + C_CPP_HASHNODE (vector_keyword)->flags |= NODE_CONDITIONAL; + + /* Enable context-sensitive macros. */ + cpp_get_callbacks (pfile)->macro_to_expand = spu_macro_to_expand; + } +} + +void +spu_c_common_override_options (void) +{ + if (!TARGET_STD_MAIN) + { + /* Don't give warnings about the main() function. */ + warn_main = 0; + } +} |