Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/spu/spu-c.c @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
|
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1 /* Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
| 0 | 2 |
| 3 This file is free software; you can redistribute it and/or modify it under | |
| 4 the terms of the GNU General Public License as published by the Free | |
| 5 Software Foundation; either version 3 of the License, or (at your option) | |
| 6 any later version. | |
| 7 | |
| 8 This file is distributed in the hope that it will be useful, but WITHOUT | |
| 9 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 10 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 11 for more details. | |
| 12 | |
| 13 You should have received a copy of the GNU General Public License | |
| 14 along with GCC; see the file COPYING3. If not see | |
| 15 <http://www.gnu.org/licenses/>. */ | |
| 16 | |
| 17 #include "config.h" | |
| 18 #include "system.h" | |
| 19 #include "coretypes.h" | |
| 20 #include "tm.h" | |
| 21 #include "cpplib.h" | |
| 22 #include "tree.h" | |
| 23 #include "c-tree.h" | |
| 24 #include "c-pragma.h" | |
| 25 #include "function.h" | |
| 26 #include "rtl.h" | |
| 27 #include "expr.h" | |
| 28 #include "tm_p.h" | |
| 29 #include "langhooks.h" | |
| 30 #include "insn-config.h" | |
| 31 #include "insn-codes.h" | |
| 32 #include "recog.h" | |
| 33 #include "optabs.h" | |
| 34 | |
| 35 | |
| 36 /* Keep the vector keywords handy for fast comparisons. */ | |
| 37 static GTY(()) tree __vector_keyword; | |
| 38 static GTY(()) tree vector_keyword; | |
| 39 | |
| 40 static cpp_hashnode * | |
| 41 spu_categorize_keyword (const cpp_token *tok) | |
| 42 { | |
| 43 if (tok->type == CPP_NAME) | |
| 44 { | |
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45 cpp_hashnode *ident = tok->val.node.node; |
| 0 | 46 |
| 47 if (ident == C_CPP_HASHNODE (vector_keyword) | |
| 48 || ident == C_CPP_HASHNODE (__vector_keyword)) | |
| 49 return C_CPP_HASHNODE (__vector_keyword); | |
| 50 else | |
| 51 return ident; | |
| 52 } | |
| 53 return 0; | |
| 54 } | |
| 55 | |
| 56 /* Called to decide whether a conditional macro should be expanded. | |
| 57 Since we have exactly one such macro (i.e, 'vector'), we do not | |
| 58 need to examine the 'tok' parameter. */ | |
| 59 | |
| 60 static cpp_hashnode * | |
| 61 spu_macro_to_expand (cpp_reader *pfile, const cpp_token *tok) | |
| 62 { | |
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63 cpp_hashnode *expand_this = tok->val.node.node; |
| 0 | 64 cpp_hashnode *ident; |
| 65 | |
| 66 ident = spu_categorize_keyword (tok); | |
| 67 if (ident == C_CPP_HASHNODE (__vector_keyword)) | |
| 68 { | |
| 69 tok = cpp_peek_token (pfile, 0); | |
| 70 ident = spu_categorize_keyword (tok); | |
| 71 | |
| 72 if (ident) | |
| 73 { | |
| 74 enum rid rid_code = (enum rid)(ident->rid_code); | |
| 75 if (ident->type == NT_MACRO) | |
| 76 { | |
| 77 (void) cpp_get_token (pfile); | |
| 78 tok = cpp_peek_token (pfile, 0); | |
| 79 ident = spu_categorize_keyword (tok); | |
| 80 if (ident) | |
| 81 rid_code = (enum rid)(ident->rid_code); | |
| 82 } | |
| 83 | |
| 84 if (rid_code == RID_UNSIGNED || rid_code == RID_LONG | |
| 85 || rid_code == RID_SHORT || rid_code == RID_SIGNED | |
| 86 || rid_code == RID_INT || rid_code == RID_CHAR | |
| 87 || rid_code == RID_FLOAT || rid_code == RID_DOUBLE) | |
| 88 expand_this = C_CPP_HASHNODE (__vector_keyword); | |
| 89 } | |
| 90 } | |
| 91 return expand_this; | |
| 92 } | |
| 93 | |
| 94 /* target hook for resolve_overloaded_builtin(). Returns a function call | |
| 95 RTX if we can resolve the overloaded builtin */ | |
| 96 tree | |
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97 spu_resolve_overloaded_builtin (location_t loc, tree fndecl, void *passed_args) |
| 0 | 98 { |
| 99 #define SCALAR_TYPE_P(t) (INTEGRAL_TYPE_P (t) \ | |
| 100 || SCALAR_FLOAT_TYPE_P (t) \ | |
| 101 || POINTER_TYPE_P (t)) | |
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102 VEC(tree,gc) *fnargs = (VEC(tree,gc) *) passed_args; |
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103 unsigned int nargs = VEC_length (tree, fnargs); |
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104 int new_fcode, fcode = DECL_FUNCTION_CODE (fndecl) - END_BUILTINS; |
| 0 | 105 struct spu_builtin_description *desc; |
| 106 tree match = NULL_TREE; | |
| 107 | |
| 108 /* The vector types are not available if the backend is not initialized. */ | |
| 109 gcc_assert (!flag_preprocess_only); | |
| 110 | |
| 111 desc = &spu_builtins[fcode]; | |
| 112 if (desc->type != B_OVERLOAD) | |
| 113 return NULL_TREE; | |
| 114 | |
| 115 /* Compare the signature of each internal builtin function with the | |
| 116 function arguments until a match is found. */ | |
| 117 | |
| 118 for (new_fcode = fcode + 1; spu_builtins[new_fcode].type == B_INTERNAL; | |
| 119 new_fcode++) | |
| 120 { | |
| 121 tree decl = spu_builtins[new_fcode].fndecl; | |
| 122 tree params = TYPE_ARG_TYPES (TREE_TYPE (decl)); | |
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123 tree param; |
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124 bool all_scalar; |
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125 unsigned int p; |
| 0 | 126 |
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127 /* Check whether all parameters are scalar. */ |
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128 all_scalar = true; |
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129 for (param = params; param != void_list_node; param = TREE_CHAIN (param)) |
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130 if (!SCALAR_TYPE_P (TREE_VALUE (param))) |
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131 all_scalar = false; |
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132 |
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133 for (param = params, p = 0; |
| 0 | 134 param != void_list_node; |
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135 param = TREE_CHAIN (param), p++) |
| 0 | 136 { |
| 137 tree var, arg_type, param_type = TREE_VALUE (param); | |
| 138 | |
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139 if (p >= nargs) |
| 0 | 140 { |
| 141 error ("insufficient arguments to overloaded function %s", | |
| 142 desc->name); | |
| 143 return error_mark_node; | |
| 144 } | |
| 145 | |
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146 var = VEC_index (tree, fnargs, p); |
| 0 | 147 |
| 148 if (TREE_CODE (var) == NON_LVALUE_EXPR) | |
| 149 var = TREE_OPERAND (var, 0); | |
| 150 | |
| 151 if (TREE_CODE (var) == ERROR_MARK) | |
| 152 return NULL_TREE; /* Let somebody else deal with the problem. */ | |
| 153 | |
| 154 arg_type = TREE_TYPE (var); | |
| 155 | |
| 156 /* The intrinsics spec does not specify precisely how to | |
| 157 resolve generic intrinsics. We require an exact match | |
| 158 for vector types and let C do it's usual parameter type | |
| 159 checking/promotions for scalar arguments, except for the | |
| 160 first argument of intrinsics which don't have a vector | |
| 161 parameter. */ | |
| 162 if ((!SCALAR_TYPE_P (param_type) | |
| 163 || !SCALAR_TYPE_P (arg_type) | |
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164 || (all_scalar && p == 0)) |
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165 && !lang_hooks.types_compatible_p (param_type, arg_type)) |
| 0 | 166 break; |
| 167 } | |
| 168 if (param == void_list_node) | |
| 169 { | |
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170 if (p != nargs) |
| 0 | 171 { |
| 172 error ("too many arguments to overloaded function %s", | |
| 173 desc->name); | |
| 174 return error_mark_node; | |
| 175 } | |
| 176 | |
| 177 match = decl; | |
| 178 break; | |
| 179 } | |
| 180 } | |
| 181 | |
| 182 if (match == NULL_TREE) | |
| 183 { | |
| 184 error ("parameter list does not match a valid signature for %s()", | |
| 185 desc->name); | |
| 186 return error_mark_node; | |
| 187 } | |
| 188 | |
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189 return build_function_call_vec (loc, match, fnargs, NULL); |
| 0 | 190 #undef SCALAR_TYPE_P |
| 191 } | |
| 192 | |
| 193 | |
| 194 void | |
| 195 spu_cpu_cpp_builtins (struct cpp_reader *pfile) | |
| 196 { | |
| 197 builtin_define_std ("__SPU__"); | |
| 198 cpp_assert (pfile, "cpu=spu"); | |
| 199 cpp_assert (pfile, "machine=spu"); | |
| 200 if (spu_arch == PROCESSOR_CELLEDP) | |
| 201 builtin_define_std ("__SPU_EDP__"); | |
| 202 builtin_define_std ("__vector=__attribute__((__spu_vector__))"); | |
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203 switch (spu_ea_model) |
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204 { |
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205 case 32: |
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206 builtin_define_std ("__EA32__"); |
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207 break; |
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208 case 64: |
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209 builtin_define_std ("__EA64__"); |
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210 break; |
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211 default: |
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212 gcc_unreachable (); |
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213 } |
| 0 | 214 |
| 215 if (!flag_iso) | |
| 216 { | |
| 217 /* Define this when supporting context-sensitive keywords. */ | |
| 218 cpp_define (pfile, "__VECTOR_KEYWORD_SUPPORTED__"); | |
| 219 cpp_define (pfile, "vector=vector"); | |
| 220 | |
| 221 /* Initialize vector keywords. */ | |
| 222 __vector_keyword = get_identifier ("__vector"); | |
| 223 C_CPP_HASHNODE (__vector_keyword)->flags |= NODE_CONDITIONAL; | |
| 224 vector_keyword = get_identifier ("vector"); | |
| 225 C_CPP_HASHNODE (vector_keyword)->flags |= NODE_CONDITIONAL; | |
| 226 | |
| 227 /* Enable context-sensitive macros. */ | |
| 228 cpp_get_callbacks (pfile)->macro_to_expand = spu_macro_to_expand; | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 void | |
| 233 spu_c_common_override_options (void) | |
| 234 { | |
| 235 if (!TARGET_STD_MAIN) | |
| 236 { | |
| 237 /* Don't give warnings about the main() function. */ | |
| 238 warn_main = 0; | |
| 239 } | |
| 240 } |