src/gallium/auxiliary/gallivm/lp_bld_tgsi.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2011-2012 Advanced Micro Devices, Inc.
   4  * Copyright 2009 VMware, Inc.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 /**
  30  * @file
  31  * TGSI to LLVM IR translation.
  32  *
  33  * @author Jose Fonseca <jfonseca@vmware.com>
  34  * @author Tom Stellard <thomas.stellard@amd.com>
  35  */
  36
  37 #ifndef LP_BLD_TGSI_H
  38 #define LP_BLD_TGSI_H
  39
  40 #include "gallivm/lp_bld.h"
  41 #include "gallivm/lp_bld_tgsi_action.h"
  42 #include "gallivm/lp_bld_limits.h"
  43 #include "gallivm/lp_bld_sample.h"
  44 #include "lp_bld_type.h"
  45 #include "pipe/p_compiler.h"
  46 #include "pipe/p_state.h"
  47 #include "tgsi/tgsi_exec.h"
  48 #include "tgsi/tgsi_scan.h"
  49 #include "tgsi/tgsi_info.h"
  50
  51 #define LP_CHAN_ALL ~0
  52
  53 #define LP_MAX_INSTRUCTIONS 256
  54
  55 struct tgsi_full_declaration;
  56 struct tgsi_full_immediate;
  57 struct tgsi_full_instruction;
  58 struct tgsi_full_src_register;
  59 struct tgsi_opcode_info;
  60 struct tgsi_token;
  61 struct tgsi_shader_info;
  62 struct lp_build_mask_context;
  63 struct gallivm_state;
  64 struct lp_derivatives;
  65 struct lp_build_tgsi_gs_iface;
  66
  67
  68 enum lp_build_tex_modifier {
  69    LP_BLD_TEX_MODIFIER_NONE = 0,
  70    LP_BLD_TEX_MODIFIER_PROJECTED,
  71    LP_BLD_TEX_MODIFIER_LOD_BIAS,
  72    LP_BLD_TEX_MODIFIER_EXPLICIT_LOD,
  73    LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV,
  74    LP_BLD_TEX_MODIFIER_LOD_ZERO
  75 };
  76
  77
  78 /**
  79  * Describe a channel of a register.
  80  *
  81  * The value can be a:
  82  * - immediate value (i.e. derived from a IMM register)
  83  * - CONST[n].x/y/z/w
  84  * - IN[n].x/y/z/w
  85  * - undetermined (when .file == TGSI_FILE_NULL)
  86  *
  87  * This is one of the analysis results, and is used to described
  88  * the output color in terms of inputs.
  89  */
  90 struct lp_tgsi_channel_info
  91 {
  92    unsigned file:4; /* TGSI_FILE_* */
  93    unsigned swizzle:3; /* PIPE_SWIZZLE_x */
  94    union {
  95       uint32_t index;
  96       float value; /* for TGSI_FILE_IMMEDIATE */
  97    } u;
  98 };
  99
 100
 101 /**
 102  * Describe a texture sampler interpolator.
 103  *
 104  * The interpolation is described in terms of regular inputs.
 105  */
 106 struct lp_tgsi_texture_info
 107 {
 108    struct lp_tgsi_channel_info coord[4];
 109    unsigned target:8; /* TGSI_TEXTURE_* */
 110    unsigned sampler_unit:8;  /* Sampler unit */
 111    unsigned texture_unit:8;  /* Texture unit */
 112    unsigned modifier:8; /* LP_BLD_TEX_MODIFIER_* */
 113 };
 114
 115
 116 struct lp_tgsi_info
 117 {
 118    struct tgsi_shader_info base;
 119
 120    /*
 121     * Whether any of the texture opcodes access a register file other than
 122     * TGSI_FILE_INPUT.
 123     *
 124     * We could also handle TGSI_FILE_CONST/IMMEDIATE here, but there is little
 125     * benefit.
 126     */
 127    unsigned indirect_textures:1;
 128
 129    /*
 130     * Whether any of the texture (sample) ocpodes use different sampler
 131     * and sampler view unit.
 132     */
 133    unsigned sampler_texture_units_different:1;
 134
 135    /*
 136     * Whether any immediate values are outside the range of 0 and 1
 137     */
 138    unsigned unclamped_immediates:1;
 139
 140    /*
 141     * Texture opcode description. Aimed at detecting and described direct
 142     * texture opcodes.
 143     */
 144    unsigned num_texs;
 145    struct lp_tgsi_texture_info tex[PIPE_MAX_SAMPLERS];
 146
 147    /*
 148     * Output description. Aimed at detecting and describing simple blit
 149     * shaders.
 150     */
 151    struct lp_tgsi_channel_info output[PIPE_MAX_SHADER_OUTPUTS][4];
 152
 153    /*
 154     * Shortcut pointers into the above (for fragment shaders).
 155     */
 156    const struct lp_tgsi_channel_info *cbuf[PIPE_MAX_COLOR_BUFS];
 157 };
 158
 159 /**
 160  * Reference to system values.
 161  */
 162 struct lp_bld_tgsi_system_values {
 163    LLVMValueRef instance_id;
 164    LLVMValueRef vertex_id;
 165    LLVMValueRef vertex_id_nobase;
 166    LLVMValueRef prim_id;
 167    LLVMValueRef basevertex;
 168    LLVMValueRef invocation_id;
 169 };
 170
 171
 172 /**
 173  * Sampler code generation interface.
 174  *
 175  * Although texture sampling is a requirement for TGSI translation, it is
 176  * a very different problem with several different approaches to it. This
 177  * structure establishes an interface for texture sampling code generation, so
 178  * that we can easily use different texture sampling strategies.
 179  */
 180 struct lp_build_sampler_soa
 181 {
 182    void
 183    (*destroy)( struct lp_build_sampler_soa *sampler );
 184
 185    void
 186    (*emit_tex_sample)(const struct lp_build_sampler_soa *sampler,
 187                       struct gallivm_state *gallivm,
 188                       const struct lp_sampler_params *params);
 189
 190    void
 191    (*emit_size_query)( const struct lp_build_sampler_soa *sampler,
 192                        struct gallivm_state *gallivm,
 193                        struct lp_type type,
 194                        unsigned unit,
 195                        unsigned target,
 196                        LLVMValueRef context_ptr,
 197                        boolean need_nr_mips,
 198                        enum lp_sampler_lod_property,
 199                        LLVMValueRef explicit_lod, /* optional */
 200                        LLVMValueRef *sizes_out);
 201 };
 202
 203
 204 struct lp_build_sampler_aos
 205 {
 206    LLVMValueRef
 207    (*emit_fetch_texel)( struct lp_build_sampler_aos *sampler,
 208                         struct lp_build_context *bld,
 209                         unsigned target, /* TGSI_TEXTURE_* */
 210                         unsigned unit,
 211                         LLVMValueRef coords,
 212                         const struct lp_derivatives derivs,
 213                         enum lp_build_tex_modifier modifier);
 214 };
 215
 216
 217 void
 218 lp_build_tgsi_info(const struct tgsi_token *tokens,
 219                    struct lp_tgsi_info *info);
 220
 221
 222 void
 223 lp_build_tgsi_soa(struct gallivm_state *gallivm,
 224                   const struct tgsi_token *tokens,
 225                   struct lp_type type,
 226                   struct lp_build_mask_context *mask,
 227                   LLVMValueRef consts_ptr,
 228                   LLVMValueRef const_sizes_ptr,
 229                   const struct lp_bld_tgsi_system_values *system_values,
 230                   const LLVMValueRef (*inputs)[4],
 231                   LLVMValueRef (*outputs)[4],
 232                   LLVMValueRef context_ptr,
 233                   struct lp_build_sampler_soa *sampler,
 234                   const struct tgsi_shader_info *info,
 235                   const struct lp_build_tgsi_gs_iface *gs_iface);
 236
 237
 238 void
 239 lp_build_tgsi_aos(struct gallivm_state *gallivm,
 240                   const struct tgsi_token *tokens,
 241                   struct lp_type type,
 242                   const unsigned char swizzles[4],
 243                   LLVMValueRef consts_ptr,
 244                   const LLVMValueRef *inputs,
 245                   LLVMValueRef *outputs,
 246                   struct lp_build_sampler_aos *sampler,
 247                   const struct tgsi_shader_info *info);
 248
 249
 250 enum lp_exec_mask_break_type {
 251    LP_EXEC_MASK_BREAK_TYPE_LOOP,
 252    LP_EXEC_MASK_BREAK_TYPE_SWITCH
 253 };
 254
 255
 256 struct lp_exec_mask {
 257    struct lp_build_context *bld;
 258
 259    boolean has_mask;
 260    boolean ret_in_main;
 261
 262    LLVMTypeRef int_vec_type;
 263
 264    LLVMValueRef exec_mask;
 265
 266    LLVMValueRef ret_mask;
 267    LLVMValueRef cond_mask;
 268    LLVMValueRef switch_mask;         /* current switch exec mask */
 269    LLVMValueRef cont_mask;
 270    LLVMValueRef break_mask;
 271
 272    struct function_ctx {
 273       int pc;
 274       LLVMValueRef ret_mask;
 275
 276       LLVMValueRef cond_stack[LP_MAX_TGSI_NESTING];
 277       int cond_stack_size;
 278
 279       /* keep track if break belongs to switch or loop */
 280       enum lp_exec_mask_break_type break_type_stack[LP_MAX_TGSI_NESTING];
 281       enum lp_exec_mask_break_type break_type;
 282
 283       struct {
 284          LLVMValueRef switch_val;
 285          LLVMValueRef switch_mask;
 286          LLVMValueRef switch_mask_default;
 287          boolean switch_in_default;
 288          unsigned switch_pc;
 289       } switch_stack[LP_MAX_TGSI_NESTING];
 290       int switch_stack_size;
 291       LLVMValueRef switch_val;
 292       LLVMValueRef switch_mask_default; /* reverse of switch mask used for default */
 293       boolean switch_in_default;        /* if switch exec is currently in default */
 294       unsigned switch_pc;               /* when used points to default or endswitch-1 */
 295
 296       LLVMValueRef loop_limiter;
 297       LLVMBasicBlockRef loop_block;
 298       LLVMValueRef break_var;
 299       struct {
 300          LLVMBasicBlockRef loop_block;
 301          LLVMValueRef cont_mask;
 302          LLVMValueRef break_mask;
 303          LLVMValueRef break_var;
 304       } loop_stack[LP_MAX_TGSI_NESTING];
 305       int loop_stack_size;
 306
 307    } *function_stack;
 308    int function_stack_size;
 309 };
 310
 311 struct lp_build_tgsi_inst_list
 312 {
 313    struct tgsi_full_instruction *instructions;
 314    uint max_instructions;
 315    uint num_instructions;
 316 };
 317
 318 unsigned lp_bld_tgsi_list_init(struct lp_build_tgsi_context * bld_base);
 319
 320
 321 unsigned lp_bld_tgsi_add_instruction(
 322    struct lp_build_tgsi_context * bld_base,
 323    const struct tgsi_full_instruction *inst_to_add);
 324
 325
 326 struct lp_build_tgsi_context;
 327
 328
 329 typedef LLVMValueRef (*lp_build_emit_fetch_fn)(struct lp_build_tgsi_context *,
 330                                         const struct tgsi_full_src_register *,
 331                                         enum tgsi_opcode_type,
 332                                         unsigned);
 333
 334 struct lp_build_tgsi_context
 335 {
 336    struct lp_build_context base;
 337
 338    struct lp_build_context uint_bld;
 339    struct lp_build_context int_bld;
 340
 341    /** This array stores functions that are used to transform TGSI opcodes to
 342      * LLVM instructions.
 343      */
 344    struct lp_build_tgsi_action op_actions[TGSI_OPCODE_LAST];
 345
 346    /* TGSI_OPCODE_RSQ is defined as 1 / sqrt( abs(src0.x) ), rsq_action
 347     * should compute 1 / sqrt (src0.x) */
 348    struct lp_build_tgsi_action rsq_action;
 349
 350    struct lp_build_tgsi_action sqrt_action;
 351
 352    const struct tgsi_shader_info *info;
 353
 354    lp_build_emit_fetch_fn emit_fetch_funcs[TGSI_FILE_COUNT];
 355
 356    LLVMValueRef (*emit_swizzle)(struct lp_build_tgsi_context *,
 357                          LLVMValueRef, unsigned, unsigned, unsigned, unsigned);
 358
 359
 360    void (*emit_debug)(struct lp_build_tgsi_context *,
 361                       const struct tgsi_full_instruction *,
 362                       const struct tgsi_opcode_info *);
 363
 364    void (*emit_store)(struct lp_build_tgsi_context *,
 365                       const struct tgsi_full_instruction *,
 366                       const struct tgsi_opcode_info *,
 367                       LLVMValueRef dst[4]);
 368
 369    void (*emit_declaration)(struct lp_build_tgsi_context *,
 370                              const struct tgsi_full_declaration *decl);
 371
 372    void (*emit_immediate)(struct lp_build_tgsi_context *,
 373                           const struct tgsi_full_immediate *imm);
 374
 375
 376    /* Allow the user to store data in this structure rather than passing it
 377     * to every function. */
 378    void * userdata;
 379
 380    boolean soa;
 381
 382    int pc;
 383
 384    struct tgsi_full_instruction *instructions;
 385    uint max_instructions;
 386    uint num_instructions;
 387
 388    /** This function allows the user to insert some instructions at the
 389      * beginning of the program.  It is optional and does not need to be
 390      * implemented.
 391      */
 392    void (*emit_prologue)(struct lp_build_tgsi_context*);
 393
 394    /** This function allows the user to insert some instructions at the end of
 395      * the program.  This callback is intended to be used for emitting
 396      * instructions to handle the export for the output registers, but it can
 397      * be used for any purpose.  Implementing this function is optiona, but
 398      * recommended.
 399      */
 400    void (*emit_epilogue)(struct lp_build_tgsi_context*);
 401 };
 402
 403 struct lp_build_tgsi_gs_iface
 404 {
 405    LLVMValueRef (*fetch_input)(const struct lp_build_tgsi_gs_iface *gs_iface,
 406                                struct lp_build_tgsi_context * bld_base,
 407                                boolean is_vindex_indirect,
 408                                LLVMValueRef vertex_index,
 409                                boolean is_aindex_indirect,
 410                                LLVMValueRef attrib_index,
 411                                LLVMValueRef swizzle_index);
 412    void (*emit_vertex)(const struct lp_build_tgsi_gs_iface *gs_iface,
 413                        struct lp_build_tgsi_context * bld_base,
 414                        LLVMValueRef (*outputs)[4],
 415                        LLVMValueRef emitted_vertices_vec);
 416    void (*end_primitive)(const struct lp_build_tgsi_gs_iface *gs_iface,
 417                          struct lp_build_tgsi_context * bld_base,
 418                          LLVMValueRef verts_per_prim_vec,
 419                          LLVMValueRef emitted_prims_vec);
 420    void (*gs_epilogue)(const struct lp_build_tgsi_gs_iface *gs_iface,
 421                        struct lp_build_tgsi_context * bld_base,
 422                        LLVMValueRef total_emitted_vertices_vec,
 423                        LLVMValueRef emitted_prims_vec);
 424 };
 425
 426 struct lp_build_tgsi_soa_context
 427 {
 428    struct lp_build_tgsi_context bld_base;
 429
 430    /* Builder for scalar elements of shader's data type (float) */
 431    struct lp_build_context elem_bld;
 432
 433    const struct lp_build_tgsi_gs_iface *gs_iface;
 434    LLVMValueRef emitted_prims_vec_ptr;
 435    LLVMValueRef total_emitted_vertices_vec_ptr;
 436    LLVMValueRef emitted_vertices_vec_ptr;
 437    LLVMValueRef max_output_vertices_vec;
 438
 439    LLVMValueRef consts_ptr;
 440    LLVMValueRef const_sizes_ptr;
 441    LLVMValueRef consts[LP_MAX_TGSI_CONST_BUFFERS];
 442    LLVMValueRef consts_sizes[LP_MAX_TGSI_CONST_BUFFERS];
 443    const LLVMValueRef (*inputs)[TGSI_NUM_CHANNELS];
 444    LLVMValueRef (*outputs)[TGSI_NUM_CHANNELS];
 445    LLVMValueRef context_ptr;
 446
 447    const struct lp_build_sampler_soa *sampler;
 448
 449    struct tgsi_declaration_sampler_view sv[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 450
 451    LLVMValueRef immediates[LP_MAX_INLINED_IMMEDIATES][TGSI_NUM_CHANNELS];
 452    LLVMValueRef temps[LP_MAX_INLINED_TEMPS][TGSI_NUM_CHANNELS];
 453    LLVMValueRef addr[LP_MAX_TGSI_ADDRS][TGSI_NUM_CHANNELS];
 454    LLVMValueRef preds[LP_MAX_TGSI_PREDS][TGSI_NUM_CHANNELS];
 455
 456    /* We allocate/use this array of temps if (1 << TGSI_FILE_TEMPORARY) is
 457     * set in the indirect_files field.
 458     * The temps[] array above is unused then.
 459     */
 460    LLVMValueRef temps_array;
 461
 462    /* We allocate/use this array of output if (1 << TGSI_FILE_OUTPUT) is
 463     * set in the indirect_files field.
 464     * The outputs[] array above is unused then.
 465     */
 466    LLVMValueRef outputs_array;
 467
 468    /* We allocate/use this array of inputs if (1 << TGSI_FILE_INPUT) is
 469     * set in the indirect_files field.
 470     * The inputs[] array above is unused then.
 471     */
 472    LLVMValueRef inputs_array;
 473
 474    /* We allocate/use this array of temps if (1 << TGSI_FILE_IMMEDIATE) is
 475     * set in the indirect_files field.
 476     */
 477    LLVMValueRef imms_array;
 478
 479
 480    struct lp_bld_tgsi_system_values system_values;
 481
 482    /** bitmask indicating which register files are accessed indirectly */
 483    unsigned indirect_files;
 484
 485    struct lp_build_mask_context *mask;
 486    struct lp_exec_mask exec_mask;
 487
 488    uint num_immediates;
 489    boolean use_immediates_array;
 490 };
 491
 492 void
 493 lp_emit_declaration_soa(
 494    struct lp_build_tgsi_context *bld,
 495    const struct tgsi_full_declaration *decl);
 496
 497 void lp_emit_immediate_soa(
 498    struct lp_build_tgsi_context *bld_base,
 499    const struct tgsi_full_immediate *imm);
 500
 501 boolean
 502 lp_emit_instruction_soa(
 503    struct lp_build_tgsi_soa_context *bld,
 504    const struct tgsi_full_instruction *inst,
 505    const struct tgsi_opcode_info *info);
 506
 507
 508 LLVMValueRef
 509 lp_get_temp_ptr_soa(
 510    struct lp_build_tgsi_soa_context *bld,
 511    unsigned index,
 512    unsigned chan);
 513
 514 LLVMValueRef
 515 lp_get_output_ptr(
 516    struct lp_build_tgsi_soa_context *bld,
 517    unsigned index,
 518    unsigned chan);
 519
 520 struct lp_build_tgsi_aos_context
 521 {
 522    struct lp_build_tgsi_context bld_base;
 523
 524    /* Builder for integer masks and indices */
 525    struct lp_build_context int_bld;
 526
 527    /*
 528     * AoS swizzle used:
 529     * - swizzles[0] = red index
 530     * - swizzles[1] = green index
 531     * - swizzles[2] = blue index
 532     * - swizzles[3] = alpha index
 533     */
 534    unsigned char swizzles[4];
 535    unsigned char inv_swizzles[4];
 536
 537    LLVMValueRef consts_ptr;
 538    const LLVMValueRef *inputs;
 539    LLVMValueRef *outputs;
 540
 541    struct lp_build_sampler_aos *sampler;
 542
 543    struct tgsi_declaration_sampler_view sv[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 544
 545    LLVMValueRef immediates[LP_MAX_INLINED_IMMEDIATES];
 546    LLVMValueRef temps[LP_MAX_INLINED_TEMPS];
 547    LLVMValueRef addr[LP_MAX_TGSI_ADDRS];
 548    LLVMValueRef preds[LP_MAX_TGSI_PREDS];
 549
 550    /* We allocate/use this array of temps if (1 << TGSI_FILE_TEMPORARY) is
 551     * set in the indirect_files field.
 552     * The temps[] array above is unused then.
 553     */
 554    LLVMValueRef temps_array;
 555
 556    /** bitmask indicating which register files are accessed indirectly */
 557    unsigned indirect_files;
 558
 559 };
 560
 561 static INLINE struct lp_build_tgsi_soa_context *
 562 lp_soa_context(struct lp_build_tgsi_context *bld_base)
 563 {
 564    return (struct lp_build_tgsi_soa_context *)bld_base;
 565 }
 566
 567 static INLINE struct lp_build_tgsi_aos_context *
 568 lp_aos_context(struct lp_build_tgsi_context *bld_base)
 569 {
 570    return (struct lp_build_tgsi_aos_context *)bld_base;
 571 }
 572
 573 void
 574 lp_emit_declaration_aos(
 575    struct lp_build_tgsi_aos_context *bld,
 576    const struct tgsi_full_declaration *decl);
 577
 578
 579 boolean
 580 lp_emit_instruction_aos(
 581    struct lp_build_tgsi_aos_context *bld,
 582    const struct tgsi_full_instruction *inst,
 583    const struct tgsi_opcode_info *info,
 584    int *pc);
 585
 586 void
 587 lp_emit_store_aos(
 588    struct lp_build_tgsi_aos_context *bld,
 589    const struct tgsi_full_instruction *inst,
 590    unsigned index,
 591    LLVMValueRef value);
 592
 593 void lp_build_fetch_args(
 594    struct lp_build_tgsi_context * bld_base,
 595    struct lp_build_emit_data * emit_data);
 596
 597 LLVMValueRef
 598 lp_build_tgsi_inst_llvm_aos(
 599    struct lp_build_tgsi_context * bld_base,
 600    const struct tgsi_full_instruction *inst);
 601
 602 void
 603 lp_build_tgsi_intrinsic(
 604  const struct lp_build_tgsi_action * action,
 605  struct lp_build_tgsi_context * bld_base,
 606  struct lp_build_emit_data * emit_data);
 607
 608 LLVMValueRef
 609 lp_build_emit_llvm(
 610    struct lp_build_tgsi_context *bld_base,
 611    unsigned tgsi_opcode,
 612    struct lp_build_emit_data * emit_data);
 613
 614 LLVMValueRef
 615 lp_build_emit_llvm_unary(
 616    struct lp_build_tgsi_context *bld_base,
 617    unsigned tgsi_opcode,
 618    LLVMValueRef arg0);
 619
 620 LLVMValueRef
 621 lp_build_emit_llvm_binary(
 622    struct lp_build_tgsi_context *bld_base,
 623    unsigned tgsi_opcode,
 624    LLVMValueRef arg0,
 625    LLVMValueRef arg1);
 626
 627 LLVMValueRef
 628 lp_build_emit_llvm_ternary(
 629    struct lp_build_tgsi_context *bld_base,
 630    unsigned tgsi_opcode,
 631    LLVMValueRef arg0,
 632    LLVMValueRef arg1,
 633    LLVMValueRef arg2);
 634
 635 boolean
 636 lp_build_tgsi_inst_llvm(
 637    struct lp_build_tgsi_context * bld_base,
 638    const struct tgsi_full_instruction *inst);
 639
 640 LLVMValueRef
 641 lp_build_emit_fetch(
 642    struct lp_build_tgsi_context *bld_base,
 643    const struct tgsi_full_instruction *inst,
 644    unsigned src_op,
 645    const unsigned chan_index);
 646
 647
 648 LLVMValueRef
 649 lp_build_emit_fetch_texoffset(
 650    struct lp_build_tgsi_context *bld_base,
 651    const struct tgsi_full_instruction *inst,
 652    unsigned tex_off_op,
 653    const unsigned chan_index);
 654
 655 boolean
 656 lp_build_tgsi_llvm(
 657    struct lp_build_tgsi_context * bld_base,
 658    const struct tgsi_token *tokens);
 659
 660 #endif /* LP_BLD_TGSI_H */