src/gallium/drivers/nouveau/codegen/nv50_ir.h

   1 /*
   2  * Copyright 2011 Christoph Bumiller
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #ifndef __NV50_IR_H__
  24 #define __NV50_IR_H__
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <stdint.h>
  29 #include <deque>
  30 #include <list>
  31 #include <vector>
  32
  33 #include "codegen/unordered_set.h"
  34 #include "codegen/nv50_ir_util.h"
  35 #include "codegen/nv50_ir_graph.h"
  36
  37 #include "codegen/nv50_ir_driver.h"
  38
  39 namespace nv50_ir {
  40
  41 enum operation
  42 {
  43    OP_NOP = 0,
  44    OP_PHI,
  45    OP_UNION, // unify a new definition and several source values
  46    OP_SPLIT, // $r0d -> { $r0, $r1 } ($r0d and $r0/$r1 will be coalesced)
  47    OP_MERGE, // opposite of split, e.g. combine 2 32 bit into a 64 bit value
  48    OP_CONSTRAINT, // copy values into consecutive registers
  49    OP_MOV, // simple copy, no modifiers allowed
  50    OP_LOAD,
  51    OP_STORE,
  52    OP_ADD, // NOTE: add u64 + u32 is legal for targets w/o 64-bit integer adds
  53    OP_SUB,
  54    OP_MUL,
  55    OP_DIV,
  56    OP_MOD,
  57    OP_MAD,
  58    OP_FMA,
  59    OP_SAD, // abs(src0 - src1) + src2
  60    OP_SHLADD,
  61    // extended multiply-add (GM107+), does a lot of things.
  62    // see envytools for detailed documentation
  63    OP_XMAD,
  64    OP_ABS,
  65    OP_NEG,
  66    OP_NOT,
  67    OP_AND,
  68    OP_OR,
  69    OP_XOR,
  70    OP_SHL,
  71    OP_SHR,
  72    OP_MAX,
  73    OP_MIN,
  74    OP_SAT, // CLAMP(f32, 0.0, 1.0)
  75    OP_CEIL,
  76    OP_FLOOR,
  77    OP_TRUNC,
  78    OP_CVT,
  79    OP_SET_AND, // dst = (src0 CMP src1) & src2
  80    OP_SET_OR,
  81    OP_SET_XOR,
  82    OP_SET,
  83    OP_SELP, // dst = src2 ? src0 : src1
  84    OP_SLCT, // dst = (src2 CMP 0) ? src0 : src1
  85    OP_RCP,
  86    OP_RSQ,
  87    OP_LG2,
  88    OP_SIN,
  89    OP_COS,
  90    OP_EX2,
  91    OP_EXP, // exponential (base M_E)
  92    OP_LOG, // natural logarithm
  93    OP_PRESIN,
  94    OP_PREEX2,
  95    OP_SQRT,
  96    OP_POW,
  97    OP_BRA,
  98    OP_CALL,
  99    OP_RET,
 100    OP_CONT,
 101    OP_BREAK,
 102    OP_PRERET,
 103    OP_PRECONT,
 104    OP_PREBREAK,
 105    OP_BRKPT,     // breakpoint (not related to loops)
 106    OP_JOINAT,    // push control flow convergence point
 107    OP_JOIN,      // converge
 108    OP_DISCARD,
 109    OP_EXIT,
 110    OP_MEMBAR, // memory barrier (mfence, lfence, sfence)
 111    OP_VFETCH, // indirection 0 in attribute space, indirection 1 is vertex base
 112    OP_PFETCH, // fetch base address of vertex src0 (immediate) [+ src1]
 113    OP_AFETCH, // fetch base address of shader input (a[%r1+0x10])
 114    OP_EXPORT,
 115    OP_LINTERP,
 116    OP_PINTERP,
 117    OP_EMIT,    // emit vertex
 118    OP_RESTART, // restart primitive
 119    OP_TEX,
 120    OP_TXB, // texture bias
 121    OP_TXL, // texure lod
 122    OP_TXF, // texel fetch
 123    OP_TXQ, // texture size query
 124    OP_TXD, // texture derivatives
 125    OP_TXG, // texture gather
 126    OP_TXLQ, // texture query lod
 127    OP_TEXCSAA, // texture op for coverage sampling
 128    OP_TEXPREP, // turn cube map array into 2d array coordinates
 129    OP_SULDB, // surface load (raw)
 130    OP_SULDP, // surface load (formatted)
 131    OP_SUSTB, // surface store (raw)
 132    OP_SUSTP, // surface store (formatted)
 133    OP_SUREDB,
 134    OP_SUREDP, // surface reduction (atomic op)
 135    OP_SULEA,   // surface load effective address
 136    OP_SUBFM,   // surface bitfield manipulation
 137    OP_SUCLAMP, // clamp surface coordinates
 138    OP_SUEAU,   // surface effective address
 139    OP_SUQ,     // surface query
 140    OP_MADSP,   // special integer multiply-add
 141    OP_TEXBAR, // texture dependency barrier
 142    OP_DFDX,
 143    OP_DFDY,
 144    OP_RDSV, // read system value
 145    OP_WRSV, // write system value
 146    OP_PIXLD, // get info about raster object or surfaces
 147    OP_QUADOP,
 148    OP_QUADON,
 149    OP_QUADPOP,
 150    OP_POPCNT, // bitcount(src0 & src1)
 151    OP_INSBF,  // insert first src1[8:15] bits of src0 into src2 at src1[0:7]
 152    OP_EXTBF,  // place bits [K,K+N) of src0 into dst, src1 = 0xNNKK
 153    OP_BFIND,  // find highest/lowest set bit
 154    OP_PERMT,  // dst = bytes from src2,src0 selected by src1 (nvc0's src order)
 155    OP_ATOM,
 156    OP_BAR,    // execution barrier, sources = { id, thread count, predicate }
 157    OP_VADD,   // byte/word vector operations
 158    OP_VAVG,
 159    OP_VMIN,
 160    OP_VMAX,
 161    OP_VSAD,
 162    OP_VSET,
 163    OP_VSHR,
 164    OP_VSHL,
 165    OP_VSEL,
 166    OP_CCTL, // cache control
 167    OP_SHFL, // warp shuffle
 168    OP_VOTE,
 169    OP_BUFQ, // buffer query
 170    OP_LAST
 171 };
 172
 173 // various instruction-specific modifier definitions Instruction::subOp
 174 // MOV_FINAL marks a MOV originating from an EXPORT (used for placing TEXBARs)
 175 #define NV50_IR_SUBOP_MUL_HIGH     1
 176 #define NV50_IR_SUBOP_EMIT_RESTART 1
 177 #define NV50_IR_SUBOP_LDC_IL       1
 178 #define NV50_IR_SUBOP_LDC_IS       2
 179 #define NV50_IR_SUBOP_LDC_ISL      3
 180 #define NV50_IR_SUBOP_SHIFT_WRAP   1
 181 #define NV50_IR_SUBOP_SHIFT_HIGH   2
 182 #define NV50_IR_SUBOP_EMU_PRERET   1
 183 #define NV50_IR_SUBOP_TEXBAR(n)    n
 184 #define NV50_IR_SUBOP_MOV_FINAL    1
 185 #define NV50_IR_SUBOP_EXTBF_REV    1
 186 #define NV50_IR_SUBOP_BFIND_SAMT   1
 187 #define NV50_IR_SUBOP_RCPRSQ_64H   1
 188 #define NV50_IR_SUBOP_PERMT_F4E    1
 189 #define NV50_IR_SUBOP_PERMT_B4E    2
 190 #define NV50_IR_SUBOP_PERMT_RC8    3
 191 #define NV50_IR_SUBOP_PERMT_ECL    4
 192 #define NV50_IR_SUBOP_PERMT_ECR    5
 193 #define NV50_IR_SUBOP_PERMT_RC16   6
 194 #define NV50_IR_SUBOP_BAR_SYNC     0
 195 #define NV50_IR_SUBOP_BAR_ARRIVE   1
 196 #define NV50_IR_SUBOP_BAR_RED_AND  2
 197 #define NV50_IR_SUBOP_BAR_RED_OR   3
 198 #define NV50_IR_SUBOP_BAR_RED_POPC 4
 199 #define NV50_IR_SUBOP_MEMBAR_L     1
 200 #define NV50_IR_SUBOP_MEMBAR_S     2
 201 #define NV50_IR_SUBOP_MEMBAR_M     3
 202 #define NV50_IR_SUBOP_MEMBAR_CTA  (0 << 2)
 203 #define NV50_IR_SUBOP_MEMBAR_GL   (1 << 2)
 204 #define NV50_IR_SUBOP_MEMBAR_SYS  (2 << 2)
 205 #define NV50_IR_SUBOP_MEMBAR_DIR(m)   ((m) & 0x3)
 206 #define NV50_IR_SUBOP_MEMBAR_SCOPE(m) ((m) & ~0x3)
 207 #define NV50_IR_SUBOP_MEMBAR(d,s) \
 208    (NV50_IR_SUBOP_MEMBAR_##d | NV50_IR_SUBOP_MEMBAR_##s)
 209 #define NV50_IR_SUBOP_ATOM_ADD      0
 210 #define NV50_IR_SUBOP_ATOM_MIN      1
 211 #define NV50_IR_SUBOP_ATOM_MAX      2
 212 #define NV50_IR_SUBOP_ATOM_INC      3
 213 #define NV50_IR_SUBOP_ATOM_DEC      4
 214 #define NV50_IR_SUBOP_ATOM_AND      5
 215 #define NV50_IR_SUBOP_ATOM_OR       6
 216 #define NV50_IR_SUBOP_ATOM_XOR      7
 217 #define NV50_IR_SUBOP_ATOM_CAS      8
 218 #define NV50_IR_SUBOP_ATOM_EXCH     9
 219 #define NV50_IR_SUBOP_CCTL_IV      5
 220 #define NV50_IR_SUBOP_CCTL_IVALL   6
 221 #define NV50_IR_SUBOP_SUST_IGN     0
 222 #define NV50_IR_SUBOP_SUST_TRAP    1
 223 #define NV50_IR_SUBOP_SUST_SDCL    3
 224 #define NV50_IR_SUBOP_SULD_ZERO    0
 225 #define NV50_IR_SUBOP_SULD_TRAP    1
 226 #define NV50_IR_SUBOP_SULD_SDCL    3
 227 #define NV50_IR_SUBOP_SUBFM_3D     1
 228 #define NV50_IR_SUBOP_SUCLAMP_2D   0x10
 229 #define NV50_IR_SUBOP_SUCLAMP_SD(r, d) (( 0 + (r)) | ((d == 2) ? 0x10 : 0))
 230 #define NV50_IR_SUBOP_SUCLAMP_PL(r, d) (( 5 + (r)) | ((d == 2) ? 0x10 : 0))
 231 #define NV50_IR_SUBOP_SUCLAMP_BL(r, d) ((10 + (r)) | ((d == 2) ? 0x10 : 0))
 232 #define NV50_IR_SUBOP_PIXLD_COUNT       0
 233 #define NV50_IR_SUBOP_PIXLD_COVMASK     1
 234 #define NV50_IR_SUBOP_PIXLD_COVERED     2
 235 #define NV50_IR_SUBOP_PIXLD_OFFSET      3
 236 #define NV50_IR_SUBOP_PIXLD_CENT_OFFSET 4
 237 #define NV50_IR_SUBOP_PIXLD_SAMPLEID    5
 238 #define NV50_IR_SUBOP_SHFL_IDX  0
 239 #define NV50_IR_SUBOP_SHFL_UP   1
 240 #define NV50_IR_SUBOP_SHFL_DOWN 2
 241 #define NV50_IR_SUBOP_SHFL_BFLY 3
 242 #define NV50_IR_SUBOP_LOAD_LOCKED    1
 243 #define NV50_IR_SUBOP_STORE_UNLOCKED 2
 244 #define NV50_IR_SUBOP_MADSP_SD     0xffff
 245 // Yes, we could represent those with DataType.
 246 // Or put the type into operation and have a couple 1000 values in that enum.
 247 // This will have to do for now.
 248 // The bitfields are supposed to correspond to nve4 ISA.
 249 #define NV50_IR_SUBOP_MADSP(a,b,c) (((c) << 8) | ((b) << 4) | (a))
 250 #define NV50_IR_SUBOP_V1(d,a,b)    (((d) << 10) | ((b) << 5) | (a) | 0x0000)
 251 #define NV50_IR_SUBOP_V2(d,a,b)    (((d) << 10) | ((b) << 5) | (a) | 0x4000)
 252 #define NV50_IR_SUBOP_V4(d,a,b)    (((d) << 10) | ((b) << 5) | (a) | 0x8000)
 253 #define NV50_IR_SUBOP_Vn(n)        ((n) >> 14)
 254 #define NV50_IR_SUBOP_VOTE_ALL 0
 255 #define NV50_IR_SUBOP_VOTE_ANY 1
 256 #define NV50_IR_SUBOP_VOTE_UNI 2
 257
 258 #define NV50_IR_SUBOP_MINMAX_LOW  1
 259 #define NV50_IR_SUBOP_MINMAX_MED  2
 260 #define NV50_IR_SUBOP_MINMAX_HIGH 3
 261
 262 // xmad(src0, src1, 0) << 16 + src2
 263 #define NV50_IR_SUBOP_XMAD_PSL (1 << 0)
 264 // (xmad(src0, src1, src2) & 0xffff) | (src1 << 16)
 265 #define NV50_IR_SUBOP_XMAD_MRG (1 << 1)
 266 // xmad(src0, src1, src2.lo)
 267 #define NV50_IR_SUBOP_XMAD_CLO (1 << 2)
 268 // xmad(src0, src1, src2.hi)
 269 #define NV50_IR_SUBOP_XMAD_CHI (2 << 2)
 270 // if both operands to the multiplication are non-zero, subtract 65536 for each
 271 // negative operand
 272 #define NV50_IR_SUBOP_XMAD_CSFU (3 << 2)
 273 // xmad(src0, src1, src2) + src1 << 16
 274 #define NV50_IR_SUBOP_XMAD_CBCC (4 << 2)
 275 #define NV50_IR_SUBOP_XMAD_CMODE_SHIFT 2
 276 #define NV50_IR_SUBOP_XMAD_CMODE_MASK (0x7 << NV50_IR_SUBOP_XMAD_CMODE_SHIFT)
 277
 278 // use the high 16 bits instead of the low 16 bits for the multiplication.
 279 // if the instruction's sType is signed, sign extend the operand from 16 bits
 280 // to 32 before multiplication.
 281 #define NV50_IR_SUBOP_XMAD_H1_SHIFT 5
 282 #define NV50_IR_SUBOP_XMAD_H1(i) (1 << (NV50_IR_SUBOP_XMAD_H1_SHIFT + (i)))
 283 #define NV50_IR_SUBOP_XMAD_H1_MASK (0x3 << NV50_IR_SUBOP_XMAD_H1_SHIFT)
 284
 285 enum DataType
 286 {
 287    TYPE_NONE,
 288    TYPE_U8,
 289    TYPE_S8,
 290    TYPE_U16,
 291    TYPE_S16,
 292    TYPE_U32,
 293    TYPE_S32,
 294    TYPE_U64, // 64 bit operations are only lowered after register allocation
 295    TYPE_S64,
 296    TYPE_F16,
 297    TYPE_F32,
 298    TYPE_F64,
 299    TYPE_B96,
 300    TYPE_B128
 301 };
 302
 303 enum CondCode
 304 {
 305    CC_FL = 0,
 306    CC_NEVER = CC_FL, // when used with FILE_FLAGS
 307    CC_LT = 1,
 308    CC_EQ = 2,
 309    CC_NOT_P = CC_EQ, // when used with FILE_PREDICATE
 310    CC_LE = 3,
 311    CC_GT = 4,
 312    CC_NE = 5,
 313    CC_P  = CC_NE,
 314    CC_GE = 6,
 315    CC_TR = 7,
 316    CC_ALWAYS = CC_TR,
 317    CC_U  = 8,
 318    CC_LTU = 9,
 319    CC_EQU = 10,
 320    CC_LEU = 11,
 321    CC_GTU = 12,
 322    CC_NEU = 13,
 323    CC_GEU = 14,
 324    CC_NO = 0x10,
 325    CC_NC = 0x11,
 326    CC_NS = 0x12,
 327    CC_NA = 0x13,
 328    CC_A  = 0x14,
 329    CC_S  = 0x15,
 330    CC_C  = 0x16,
 331    CC_O  = 0x17
 332 };
 333
 334 enum RoundMode
 335 {
 336    ROUND_N, // nearest
 337    ROUND_M, // towards -inf
 338    ROUND_Z, // towards 0
 339    ROUND_P, // towards +inf
 340    ROUND_NI, // nearest integer
 341    ROUND_MI, // to integer towards -inf
 342    ROUND_ZI, // to integer towards 0
 343    ROUND_PI, // to integer towards +inf
 344 };
 345
 346 enum CacheMode
 347 {
 348    CACHE_CA,            // cache at all levels
 349    CACHE_WB = CACHE_CA, // cache write back
 350    CACHE_CG,            // cache at global level
 351    CACHE_CS,            // cache streaming
 352    CACHE_CV,            // cache as volatile
 353    CACHE_WT = CACHE_CV  // cache write-through
 354 };
 355
 356 enum DataFile
 357 {
 358    FILE_NULL = 0,
 359    FILE_GPR,
 360    FILE_PREDICATE,       // boolean predicate
 361    FILE_FLAGS,           // zero/sign/carry/overflow bits
 362    FILE_ADDRESS,
 363    LAST_REGISTER_FILE = FILE_ADDRESS,
 364    FILE_IMMEDIATE,
 365    FILE_MEMORY_CONST,
 366    FILE_SHADER_INPUT,
 367    FILE_SHADER_OUTPUT,
 368    FILE_MEMORY_BUFFER,
 369    FILE_MEMORY_GLOBAL,
 370    FILE_MEMORY_SHARED,
 371    FILE_MEMORY_LOCAL,
 372    FILE_SYSTEM_VALUE,
 373    DATA_FILE_COUNT
 374 };
 375
 376 enum TexTarget
 377 {
 378    TEX_TARGET_1D,
 379    TEX_TARGET_2D,
 380    TEX_TARGET_2D_MS,
 381    TEX_TARGET_3D,
 382    TEX_TARGET_CUBE,
 383    TEX_TARGET_1D_SHADOW,
 384    TEX_TARGET_2D_SHADOW,
 385    TEX_TARGET_CUBE_SHADOW,
 386    TEX_TARGET_1D_ARRAY,
 387    TEX_TARGET_2D_ARRAY,
 388    TEX_TARGET_2D_MS_ARRAY,
 389    TEX_TARGET_CUBE_ARRAY,
 390    TEX_TARGET_1D_ARRAY_SHADOW,
 391    TEX_TARGET_2D_ARRAY_SHADOW,
 392    TEX_TARGET_RECT,
 393    TEX_TARGET_RECT_SHADOW,
 394    TEX_TARGET_CUBE_ARRAY_SHADOW,
 395    TEX_TARGET_BUFFER,
 396    TEX_TARGET_COUNT
 397 };
 398
 399 enum ImgFormat
 400 {
 401    FMT_NONE,
 402
 403    FMT_RGBA32F,
 404    FMT_RGBA16F,
 405    FMT_RG32F,
 406    FMT_RG16F,
 407    FMT_R11G11B10F,
 408    FMT_R32F,
 409    FMT_R16F,
 410
 411    FMT_RGBA32UI,
 412    FMT_RGBA16UI,
 413    FMT_RGB10A2UI,
 414    FMT_RGBA8UI,
 415    FMT_RG32UI,
 416    FMT_RG16UI,
 417    FMT_RG8UI,
 418    FMT_R32UI,
 419    FMT_R16UI,
 420    FMT_R8UI,
 421
 422    FMT_RGBA32I,
 423    FMT_RGBA16I,
 424    FMT_RGBA8I,
 425    FMT_RG32I,
 426    FMT_RG16I,
 427    FMT_RG8I,
 428    FMT_R32I,
 429    FMT_R16I,
 430    FMT_R8I,
 431
 432    FMT_RGBA16,
 433    FMT_RGB10A2,
 434    FMT_RGBA8,
 435    FMT_RG16,
 436    FMT_RG8,
 437    FMT_R16,
 438    FMT_R8,
 439
 440    FMT_RGBA16_SNORM,
 441    FMT_RGBA8_SNORM,
 442    FMT_RG16_SNORM,
 443    FMT_RG8_SNORM,
 444    FMT_R16_SNORM,
 445    FMT_R8_SNORM,
 446
 447    FMT_BGRA8,
 448
 449    IMG_FORMAT_COUNT,
 450 };
 451
 452 enum ImgType {
 453    UINT,
 454    SINT,
 455    UNORM,
 456    SNORM,
 457    FLOAT,
 458 };
 459
 460 enum SVSemantic
 461 {
 462    SV_POSITION, // WPOS
 463    SV_VERTEX_ID,
 464    SV_INSTANCE_ID,
 465    SV_INVOCATION_ID,
 466    SV_PRIMITIVE_ID,
 467    SV_VERTEX_COUNT, // gl_PatchVerticesIn
 468    SV_LAYER,
 469    SV_VIEWPORT_INDEX,
 470    SV_YDIR,
 471    SV_FACE,
 472    SV_POINT_SIZE,
 473    SV_POINT_COORD,
 474    SV_CLIP_DISTANCE,
 475    SV_SAMPLE_INDEX,
 476    SV_SAMPLE_POS,
 477    SV_SAMPLE_MASK,
 478    SV_TESS_OUTER,
 479    SV_TESS_INNER,
 480    SV_TESS_COORD,
 481    SV_TID,
 482    SV_COMBINED_TID,
 483    SV_CTAID,
 484    SV_NTID,
 485    SV_GRIDID,
 486    SV_NCTAID,
 487    SV_LANEID,
 488    SV_PHYSID,
 489    SV_NPHYSID,
 490    SV_CLOCK,
 491    SV_LBASE,
 492    SV_SBASE,
 493    SV_VERTEX_STRIDE,
 494    SV_INVOCATION_INFO,
 495    SV_THREAD_KILL,
 496    SV_BASEVERTEX,
 497    SV_BASEINSTANCE,
 498    SV_DRAWID,
 499    SV_WORK_DIM,
 500    SV_LANEMASK_EQ,
 501    SV_LANEMASK_LT,
 502    SV_LANEMASK_LE,
 503    SV_LANEMASK_GT,
 504    SV_LANEMASK_GE,
 505    SV_UNDEFINED,
 506    SV_LAST
 507 };
 508
 509 class Program;
 510 class Function;
 511 class BasicBlock;
 512
 513 class Target;
 514
 515 class Instruction;
 516 class CmpInstruction;
 517 class TexInstruction;
 518 class FlowInstruction;
 519
 520 class Value;
 521 class LValue;
 522 class Symbol;
 523 class ImmediateValue;
 524
 525 struct Storage
 526 {
 527    DataFile file;
 528    int8_t fileIndex; // signed, may be indirect for CONST[]
 529    uint8_t size; // this should match the Instruction type's size
 530    DataType type; // mainly for pretty printing
 531    union {
 532       uint64_t u64;    // immediate values
 533       uint32_t u32;
 534       uint16_t u16;
 535       uint8_t u8;
 536       int64_t s64;
 537       int32_t s32;
 538       int16_t s16;
 539       int8_t s8;
 540       float f32;
 541       double f64;
 542       int32_t offset; // offset from 0 (base of address space)
 543       int32_t id;     // register id (< 0 if virtual/unassigned, in units <= 4)
 544       struct {
 545          SVSemantic sv;
 546          int index;
 547       } sv;
 548    } data;
 549 };
 550
 551 // precedence: NOT after SAT after NEG after ABS
 552 #define NV50_IR_MOD_ABS (1 << 0)
 553 #define NV50_IR_MOD_NEG (1 << 1)
 554 #define NV50_IR_MOD_SAT (1 << 2)
 555 #define NV50_IR_MOD_NOT (1 << 3)
 556 #define NV50_IR_MOD_NEG_ABS (NV50_IR_MOD_NEG | NV50_IR_MOD_ABS)
 557
 558 #define NV50_IR_INTERP_MODE_MASK   0x3
 559 #define NV50_IR_INTERP_LINEAR      (0 << 0)
 560 #define NV50_IR_INTERP_PERSPECTIVE (1 << 0)
 561 #define NV50_IR_INTERP_FLAT        (2 << 0)
 562 #define NV50_IR_INTERP_SC          (3 << 0) // what exactly is that ?
 563 #define NV50_IR_INTERP_SAMPLE_MASK 0xc
 564 #define NV50_IR_INTERP_DEFAULT     (0 << 2)
 565 #define NV50_IR_INTERP_CENTROID    (1 << 2)
 566 #define NV50_IR_INTERP_OFFSET      (2 << 2)
 567 #define NV50_IR_INTERP_SAMPLEID    (3 << 2)
 568
 569 // do we really want this to be a class ?
 570 class Modifier
 571 {
 572 public:
 573    Modifier() : bits(0) { }
 574    Modifier(unsigned int m) : bits(m) { }
 575    Modifier(operation op);
 576
 577    // @return new Modifier applying a after b (asserts if unrepresentable)
 578    Modifier operator*(const Modifier) const;
 579    Modifier operator*=(const Modifier m) { *this = *this * m; return *this; }
 580    Modifier operator==(const Modifier m) const { return m.bits == bits; }
 581    Modifier operator!=(const Modifier m) const { return m.bits != bits; }
 582
 583    inline Modifier operator&(const Modifier m) const { return bits & m.bits; }
 584    inline Modifier operator|(const Modifier m) const { return bits | m.bits; }
 585    inline Modifier operator^(const Modifier m) const { return bits ^ m.bits; }
 586
 587    operation getOp() const;
 588
 589    inline int neg() const { return (bits & NV50_IR_MOD_NEG) ? 1 : 0; }
 590    inline int abs() const { return (bits & NV50_IR_MOD_ABS) ? 1 : 0; }
 591
 592    inline operator bool() const { return bits ? true : false; }
 593
 594    void applyTo(ImmediateValue &imm) const;
 595
 596    int print(char *buf, size_t size) const;
 597
 598 private:
 599    uint8_t bits;
 600 };
 601
 602 class ValueRef
 603 {
 604 public:
 605    ValueRef(Value * = NULL);
 606    ValueRef(const ValueRef&);
 607    ~ValueRef();
 608
 609    inline bool exists() const { return value != NULL; }
 610
 611    void set(Value *);
 612    void set(const ValueRef&);
 613    inline Value *get() const { return value; }
 614    inline Value *rep() const;
 615
 616    inline Instruction *getInsn() const { return insn; }
 617    inline void setInsn(Instruction *inst) { insn = inst; }
 618
 619    inline bool isIndirect(int dim) const { return indirect[dim] >= 0; }
 620    inline const ValueRef *getIndirect(int dim) const;
 621
 622    inline DataFile getFile() const;
 623    inline unsigned getSize() const;
 624
 625    // SSA: return eventual (traverse MOVs) literal value, if it exists
 626    bool getImmediate(ImmediateValue&) const;
 627
 628 public:
 629    Modifier mod;
 630    int8_t indirect[2]; // >= 0 if relative to lvalue in insn->src(indirect[i])
 631
 632    bool usedAsPtr; // for printing
 633
 634 private:
 635    Value *value;
 636    Instruction *insn;
 637 };
 638
 639 class ValueDef
 640 {
 641 public:
 642    ValueDef(Value * = NULL);
 643    ValueDef(const ValueDef&);
 644    ~ValueDef();
 645
 646    inline bool exists() const { return value != NULL; }
 647
 648    inline Value *get() const { return value; }
 649    inline Value *rep() const;
 650    void set(Value *);
 651    bool mayReplace(const ValueRef &);
 652    void replace(const ValueRef &, bool doSet); // replace all uses of the old value
 653
 654    inline Instruction *getInsn() const { return insn; }
 655    inline void setInsn(Instruction *inst) { insn = inst; }
 656
 657    inline DataFile getFile() const;
 658    inline unsigned getSize() const;
 659
 660    inline void setSSA(LValue *);
 661    inline const LValue *preSSA() const;
 662
 663 private:
 664    Value *value;   // should make this LValue * ...
 665    LValue *origin; // pre SSA value
 666    Instruction *insn;
 667 };
 668
 669 class Value
 670 {
 671 public:
 672    Value();
 673    virtual ~Value() { }
 674
 675    virtual Value *clone(ClonePolicy<Function>&) const = 0;
 676
 677    virtual int print(char *, size_t, DataType ty = TYPE_NONE) const = 0;
 678
 679    virtual bool equals(const Value *, bool strict = false) const;
 680    virtual bool interfers(const Value *) const;
 681    virtual bool isUniform() const { return true; }
 682
 683    inline Value *rep() const { return join; }
 684
 685    inline Instruction *getUniqueInsn() const;
 686    inline Instruction *getInsn() const; // use when uniqueness is certain
 687
 688    inline int refCount() { return uses.size(); }
 689
 690    inline LValue *asLValue();
 691    inline Symbol *asSym();
 692    inline ImmediateValue *asImm();
 693    inline const Symbol *asSym() const;
 694    inline const ImmediateValue *asImm() const;
 695
 696    inline bool inFile(DataFile f) const { return reg.file == f; }
 697
 698    static inline Value *get(Iterator&);
 699
 700    unordered_set<ValueRef *> uses;
 701    std::list<ValueDef *> defs;
 702    typedef unordered_set<ValueRef *>::iterator UseIterator;
 703    typedef unordered_set<ValueRef *>::const_iterator UseCIterator;
 704    typedef std::list<ValueDef *>::iterator DefIterator;
 705    typedef std::list<ValueDef *>::const_iterator DefCIterator;
 706
 707    int id;
 708    Storage reg;
 709
 710    // TODO: these should be in LValue:
 711    Interval livei;
 712    Value *join;
 713 };
 714
 715 class LValue : public Value
 716 {
 717 public:
 718    LValue(Function *, DataFile file);
 719    LValue(Function *, LValue *);
 720    ~LValue() { }
 721
 722    virtual bool isUniform() const;
 723
 724    virtual LValue *clone(ClonePolicy<Function>&) const;
 725
 726    virtual int print(char *, size_t, DataType ty = TYPE_NONE) const;
 727
 728 public:
 729    unsigned compMask : 8; // compound/component mask
 730    unsigned compound : 1; // used by RA, value involved in split/merge
 731    unsigned ssa      : 1;
 732    unsigned fixedReg : 1; // set & used by RA, earlier just use (id < 0)
 733    unsigned noSpill  : 1; // do not spill (e.g. if spill temporary already)
 734 };
 735
 736 class Symbol : public Value
 737 {
 738 public:
 739    Symbol(Program *, DataFile file = FILE_MEMORY_CONST, ubyte fileIdx = 0);
 740    ~Symbol() { }
 741
 742    virtual Symbol *clone(ClonePolicy<Function>&) const;
 743
 744    virtual bool equals(const Value *that, bool strict) const;
 745
 746    virtual bool isUniform() const;
 747
 748    virtual int print(char *, size_t, DataType ty = TYPE_NONE) const;
 749
 750    // print with indirect values
 751    int print(char *, size_t, Value *, Value *, DataType ty = TYPE_NONE) const;
 752
 753    inline void setFile(DataFile file, ubyte fileIndex = 0)
 754    {
 755       reg.file = file;
 756       reg.fileIndex = fileIndex;
 757    }
 758
 759    inline void setOffset(int32_t offset);
 760    inline void setAddress(Symbol *base, int32_t offset);
 761    inline void setSV(SVSemantic sv, uint32_t idx = 0);
 762
 763    inline const Symbol *getBase() const { return baseSym; }
 764
 765 private:
 766    Symbol *baseSym; // array base for Symbols representing array elements
 767 };
 768
 769 class ImmediateValue : public Value
 770 {
 771 public:
 772    ImmediateValue() { }
 773    ImmediateValue(Program *, uint32_t);
 774    ImmediateValue(Program *, float);
 775    ImmediateValue(Program *, double);
 776    // NOTE: not added to program with
 777    ImmediateValue(const ImmediateValue *, DataType ty);
 778    ~ImmediateValue() { };
 779
 780    virtual ImmediateValue *clone(ClonePolicy<Function>&) const;
 781
 782    virtual bool equals(const Value *that, bool strict) const;
 783
 784    // these only work if 'type' is valid (we mostly use untyped literals):
 785    bool isInteger(const int ival) const; // ival is cast to this' type
 786    bool isNegative() const;
 787    bool isPow2() const;
 788
 789    void applyLog2();
 790
 791    // for constant folding:
 792    ImmediateValue operator+(const ImmediateValue&) const;
 793    ImmediateValue operator-(const ImmediateValue&) const;
 794    ImmediateValue operator*(const ImmediateValue&) const;
 795    ImmediateValue operator/(const ImmediateValue&) const;
 796
 797    ImmediateValue& operator=(const ImmediateValue&); // only sets value !
 798
 799    bool compare(CondCode cc, float fval) const;
 800
 801    virtual int print(char *, size_t, DataType ty = TYPE_NONE) const;
 802 };
 803
 804 class Instruction
 805 {
 806 public:
 807    Instruction();
 808    Instruction(Function *, operation, DataType);
 809    virtual ~Instruction();
 810
 811    virtual Instruction *clone(ClonePolicy<Function>&,
 812                               Instruction * = NULL) const;
 813
 814    void setDef(int i, Value *);
 815    void setSrc(int s, Value *);
 816    void setSrc(int s, const ValueRef&);
 817    void swapSources(int a, int b);
 818    void moveSources(int s, int delta);
 819    bool setIndirect(int s, int dim, Value *);
 820
 821    inline ValueRef& src(int s) { return srcs[s]; }
 822    inline ValueDef& def(int s) { return defs[s]; }
 823    inline const ValueRef& src(int s) const { return srcs[s]; }
 824    inline const ValueDef& def(int s) const { return defs[s]; }
 825
 826    inline Value *getDef(int d) const { return defs[d].get(); }
 827    inline Value *getSrc(int s) const { return srcs[s].get(); }
 828    inline Value *getIndirect(int s, int dim) const;
 829
 830    inline bool defExists(unsigned d) const
 831    {
 832       return d < defs.size() && defs[d].exists();
 833    }
 834    inline bool srcExists(unsigned s) const
 835    {
 836       return s < srcs.size() && srcs[s].exists();
 837    }
 838
 839    inline bool constrainedDefs() const;
 840
 841    bool setPredicate(CondCode ccode, Value *);
 842    inline Value *getPredicate() const;
 843    bool writesPredicate() const;
 844    inline bool isPredicated() const { return predSrc >= 0; }
 845
 846    inline void setFlagsSrc(int s, Value *);
 847    inline void setFlagsDef(int d, Value *);
 848    inline bool usesFlags() const { return flagsSrc >= 0; }
 849
 850    unsigned int defCount() const { return defs.size(); };
 851    unsigned int defCount(unsigned int mask, bool singleFile = false) const;
 852    unsigned int srcCount() const { return srcs.size(); };
 853    unsigned int srcCount(unsigned int mask, bool singleFile = false) const;
 854
 855    // save & remove / set indirect[0,1] and predicate source
 856    void takeExtraSources(int s, Value *[3]);
 857    void putExtraSources(int s, Value *[3]);
 858
 859    inline void setType(DataType type) { dType = sType = type; }
 860
 861    inline void setType(DataType dtype, DataType stype)
 862    {
 863       dType = dtype;
 864       sType = stype;
 865    }
 866
 867    inline bool isPseudo() const { return op < OP_MOV; }
 868    bool isDead() const;
 869    bool isNop() const;
 870    bool isCommutationLegal(const Instruction *) const; // must be adjacent !
 871    bool isActionEqual(const Instruction *) const;
 872    bool isResultEqual(const Instruction *) const;
 873
 874    // check whether the defs interfere with srcs and defs of another instruction
 875    bool canCommuteDefDef(const Instruction *) const;
 876    bool canCommuteDefSrc(const Instruction *) const;
 877
 878    void print() const;
 879
 880    inline CmpInstruction *asCmp();
 881    inline TexInstruction *asTex();
 882    inline FlowInstruction *asFlow();
 883    inline const TexInstruction *asTex() const;
 884    inline const CmpInstruction *asCmp() const;
 885    inline const FlowInstruction *asFlow() const;
 886
 887 public:
 888    Instruction *next;
 889    Instruction *prev;
 890    int id;
 891    int serial; // CFG order
 892
 893    operation op;
 894    DataType dType; // destination or defining type
 895    DataType sType; // source or secondary type
 896    CondCode cc;
 897    RoundMode rnd;
 898    CacheMode cache;
 899
 900    uint16_t subOp; // quadop, 1 for mul-high, etc.
 901
 902    unsigned encSize    : 4; // encoding size in bytes
 903    unsigned saturate   : 1; // to [0.0f, 1.0f]
 904    unsigned join       : 1; // converge control flow (use OP_JOIN until end)
 905    unsigned fixed      : 1; // prevent dead code elimination
 906    unsigned terminator : 1; // end of basic block
 907    unsigned ftz        : 1; // flush denormal to zero
 908    unsigned dnz        : 1; // denormals, NaN are zero
 909    unsigned ipa        : 4; // interpolation mode
 910    unsigned lanes      : 4;
 911    unsigned perPatch   : 1;
 912    unsigned exit       : 1; // terminate program after insn
 913    unsigned mask       : 4; // for vector ops
 914    // prevent algebraic optimisations that aren't bit-for-bit identical
 915    unsigned precise    : 1;
 916
 917    int8_t postFactor; // MUL/DIV(if < 0) by 1 << postFactor
 918
 919    int8_t predSrc;
 920    int8_t flagsDef;
 921    int8_t flagsSrc;
 922
 923    uint32_t sched; // scheduling data (NOTE: maybe move to separate storage)
 924
 925    BasicBlock *bb;
 926
 927 protected:
 928    std::deque<ValueDef> defs; // no gaps !
 929    std::deque<ValueRef> srcs; // no gaps !
 930
 931    // instruction specific methods:
 932    // (don't want to subclass, would need more constructors and memory pools)
 933 public:
 934    inline void setInterpolate(unsigned int mode) { ipa = mode; }
 935
 936    unsigned int getInterpMode() const { return ipa & 0x3; }
 937    unsigned int getSampleMode() const { return ipa & 0xc; }
 938
 939 private:
 940    void init();
 941 };
 942
 943 enum TexQuery
 944 {
 945    TXQ_DIMS, /* x, y, z, levels */
 946    TXQ_TYPE, /* ?, ?, samples, ? */
 947    TXQ_SAMPLE_POSITION,
 948    TXQ_FILTER,
 949    TXQ_LOD,
 950    TXQ_WRAP,
 951    TXQ_BORDER_COLOUR
 952 };
 953
 954 class TexInstruction : public Instruction
 955 {
 956 public:
 957    class Target
 958    {
 959    public:
 960       Target(TexTarget targ = TEX_TARGET_2D) : target(targ) { }
 961
 962       const char *getName() const { return descTable[target].name; }
 963       unsigned int getArgCount() const { return descTable[target].argc; }
 964       unsigned int getDim() const { return descTable[target].dim; }
 965       int isArray() const { return descTable[target].array ? 1 : 0; }
 966       int isCube() const { return descTable[target].cube ? 1 : 0; }
 967       int isShadow() const { return descTable[target].shadow ? 1 : 0; }
 968       int isMS() const {
 969         return target == TEX_TARGET_2D_MS || target == TEX_TARGET_2D_MS_ARRAY; }
 970       void clearMS() {
 971          if (isMS()) {
 972             if (isArray())
 973                target = TEX_TARGET_2D_ARRAY;
 974             else
 975                target = TEX_TARGET_2D;
 976          }
 977       }
 978
 979       Target& operator=(TexTarget targ)
 980       {
 981          assert(targ < TEX_TARGET_COUNT);
 982          target = targ;
 983          return *this;
 984       }
 985
 986       inline bool operator==(TexTarget targ) const { return target == targ; }
 987       inline bool operator!=(TexTarget targ) const { return target != targ; }
 988
 989       enum TexTarget getEnum() const { return target; }
 990
 991    private:
 992       struct Desc
 993       {
 994          char name[19];
 995          uint8_t dim;
 996          uint8_t argc;
 997          bool array;
 998          bool cube;
 999          bool shadow;
1000       };
1001
1002       static const struct Desc descTable[TEX_TARGET_COUNT];
1003
1004    private:
1005       enum TexTarget target;
1006    };
1007
1008 public:
1009    struct ImgFormatDesc
1010    {
1011       char name[19];
1012       uint8_t components;
1013       uint8_t bits[4];
1014       ImgType type;
1015       bool bgra;
1016    };
1017
1018    static const struct ImgFormatDesc formatTable[IMG_FORMAT_COUNT];
1019
1020 public:
1021    TexInstruction(Function *, operation);
1022    virtual ~TexInstruction();
1023
1024    virtual TexInstruction *clone(ClonePolicy<Function>&,
1025                                  Instruction * = NULL) const;
1026
1027    inline void setTexture(Target targ, uint8_t r, uint8_t s)
1028    {
1029       tex.r = r;
1030       tex.s = s;
1031       tex.target = targ;
1032    }
1033
1034    void setIndirectR(Value *);
1035    void setIndirectS(Value *);
1036    inline Value *getIndirectR() const;
1037    inline Value *getIndirectS() const;
1038
1039 public:
1040    struct {
1041       Target target;
1042
1043       uint16_t r;
1044       uint16_t s;
1045       int8_t rIndirectSrc;
1046       int8_t sIndirectSrc;
1047
1048       uint8_t mask;
1049       uint8_t gatherComp;
1050
1051       bool liveOnly; // only execute on live pixels of a quad (optimization)
1052       bool levelZero;
1053       bool derivAll;
1054       bool bindless;
1055
1056       int8_t useOffsets; // 0, 1, or 4 for textureGatherOffsets
1057       int8_t offset[3]; // only used on nv50
1058
1059       enum TexQuery query;
1060       const struct ImgFormatDesc *format;
1061
1062       bool scalar; // for GM107s TEXS, TLDS, TLD4S
1063    } tex;
1064
1065    ValueRef dPdx[3];
1066    ValueRef dPdy[3];
1067    ValueRef offset[4][3];
1068 };
1069
1070 class CmpInstruction : public Instruction
1071 {
1072 public:
1073    CmpInstruction(Function *, operation);
1074
1075    virtual CmpInstruction *clone(ClonePolicy<Function>&,
1076                                  Instruction * = NULL) const;
1077
1078    void setCondition(CondCode cond) { setCond = cond; }
1079    CondCode getCondition() const { return setCond; }
1080
1081 public:
1082    CondCode setCond;
1083 };
1084
1085 class FlowInstruction : public Instruction
1086 {
1087 public:
1088    FlowInstruction(Function *, operation, void *target);
1089
1090    virtual FlowInstruction *clone(ClonePolicy<Function>&,
1091                                   Instruction * = NULL) const;
1092
1093 public:
1094    unsigned allWarp  : 1;
1095    unsigned absolute : 1;
1096    unsigned limit    : 1;
1097    unsigned builtin  : 1; // true for calls to emulation code
1098    unsigned indirect : 1; // target in src(0)
1099
1100    union {
1101       BasicBlock *bb;
1102       int builtin;
1103       Function *fn;
1104    } target;
1105 };
1106
1107 class BasicBlock
1108 {
1109 public:
1110    BasicBlock(Function *);
1111    ~BasicBlock();
1112
1113    BasicBlock *clone(ClonePolicy<Function>&) const;
1114
1115    inline int getId() const { return id; }
1116    inline unsigned int getInsnCount() const { return numInsns; }
1117    inline bool isTerminated() const { return exit && exit->terminator; }
1118
1119    bool dominatedBy(BasicBlock *bb);
1120    inline bool reachableBy(const BasicBlock *by, const BasicBlock *term);
1121
1122    // returns mask of conditional out blocks
1123    // e.g. 3 for IF { .. } ELSE { .. } ENDIF, 1 for IF { .. } ENDIF
1124    unsigned int initiatesSimpleConditional() const;
1125
1126 public:
1127    Function *getFunction() const { return func; }
1128    Program *getProgram() const { return program; }
1129
1130    Instruction *getEntry() const { return entry; } // first non-phi instruction
1131    Instruction *getPhi() const { return phi; }
1132    Instruction *getFirst() const { return phi ? phi : entry; }
1133    Instruction *getExit() const { return exit; }
1134
1135    void insertHead(Instruction *);
1136    void insertTail(Instruction *);
1137    void insertBefore(Instruction *, Instruction *);
1138    void insertAfter(Instruction *, Instruction *);
1139    void remove(Instruction *);
1140    void permuteAdjacent(Instruction *, Instruction *);
1141
1142    BasicBlock *idom() const;
1143
1144    // NOTE: currently does not rebuild the dominator tree
1145    BasicBlock *splitBefore(Instruction *, bool attach = true);
1146    BasicBlock *splitAfter(Instruction *, bool attach = true);
1147
1148    DLList& getDF() { return df; }
1149    DLList::Iterator iterDF() { return df.iterator(); }
1150
1151    static inline BasicBlock *get(Iterator&);
1152    static inline BasicBlock *get(Graph::Node *);
1153
1154 public:
1155    Graph::Node cfg; // first edge is branch *taken* (the ELSE branch)
1156    Graph::Node dom;
1157
1158    BitSet liveSet;
1159    BitSet defSet;
1160
1161    uint32_t binPos;
1162    uint32_t binSize;
1163
1164    Instruction *joinAt; // for quick reference
1165
1166    bool explicitCont; // loop headers: true if loop contains continue stmts
1167
1168 private:
1169    int id;
1170    DLList df;
1171
1172    Instruction *phi;
1173    Instruction *entry;
1174    Instruction *exit;
1175
1176    unsigned int numInsns;
1177
1178 private:
1179    Function *func;
1180    Program *program;
1181
1182    void splitCommon(Instruction *, BasicBlock *, bool attach);
1183 };
1184
1185 class Function
1186 {
1187 public:
1188    Function(Program *, const char *name, uint32_t label);
1189    ~Function();
1190
1191    static inline Function *get(Graph::Node *node);
1192
1193    inline Program *getProgram() const { return prog; }
1194    inline const char *getName() const { return name; }
1195    inline int getId() const { return id; }
1196    inline uint32_t getLabel() const { return label; }
1197
1198    void print();
1199    void printLiveIntervals() const;
1200    void printCFGraph(const char *filePath);
1201
1202    bool setEntry(BasicBlock *);
1203    bool setExit(BasicBlock *);
1204
1205    unsigned int orderInstructions(ArrayList&);
1206
1207    inline void add(BasicBlock *bb, int& id) { allBBlocks.insert(bb, id); }
1208    inline void add(Instruction *insn, int& id) { allInsns.insert(insn, id); }
1209    inline void add(LValue *lval, int& id) { allLValues.insert(lval, id); }
1210
1211    inline LValue *getLValue(int id);
1212
1213    void buildLiveSets();
1214    void buildDefSets();
1215    bool convertToSSA();
1216
1217 public:
1218    std::deque<ValueDef> ins;
1219    std::deque<ValueRef> outs;
1220    std::deque<Value *> clobbers;
1221
1222    Graph cfg;
1223    Graph::Node *cfgExit;
1224    Graph *domTree;
1225    Graph::Node call; // node in the call graph
1226
1227    BasicBlock **bbArray; // BBs in emission order
1228    int bbCount;
1229
1230    unsigned int loopNestingBound;
1231    int regClobberMax;
1232
1233    uint32_t binPos;
1234    uint32_t binSize;
1235
1236    Value *stackPtr;
1237
1238    uint32_t tlsBase; // base address for l[] space (if no stack pointer is used)
1239    uint32_t tlsSize;
1240
1241    ArrayList allBBlocks;
1242    ArrayList allInsns;
1243    ArrayList allLValues;
1244
1245 private:
1246    void buildLiveSetsPreSSA(BasicBlock *, const int sequence);
1247    void buildDefSetsPreSSA(BasicBlock *bb, const int seq);
1248
1249 private:
1250    uint32_t label;
1251    int id;
1252    const char *const name;
1253    Program *prog;
1254 };
1255
1256 enum CGStage
1257 {
1258    CG_STAGE_PRE_SSA,
1259    CG_STAGE_SSA, // expected directly before register allocation
1260    CG_STAGE_POST_RA
1261 };
1262
1263 class Program
1264 {
1265 public:
1266    enum Type
1267    {
1268       TYPE_VERTEX,
1269       TYPE_TESSELLATION_CONTROL,
1270       TYPE_TESSELLATION_EVAL,
1271       TYPE_GEOMETRY,
1272       TYPE_FRAGMENT,
1273       TYPE_COMPUTE
1274    };
1275
1276    Program(Type type, Target *targ);
1277    ~Program();
1278
1279    void print();
1280
1281    Type getType() const { return progType; }
1282
1283    inline void add(Function *fn, int& id) { allFuncs.insert(fn, id); }
1284    inline void del(Function *fn, int& id) { allFuncs.remove(id); }
1285    inline void add(Value *rval, int& id) { allRValues.insert(rval, id); }
1286
1287    bool makeFromTGSI(struct nv50_ir_prog_info *);
1288    bool convertToSSA();
1289    bool optimizeSSA(int level);
1290    bool optimizePostRA(int level);
1291    bool registerAllocation();
1292    bool emitBinary(struct nv50_ir_prog_info *);
1293
1294    const Target *getTarget() const { return target; }
1295
1296 private:
1297    void emitSymbolTable(struct nv50_ir_prog_info *);
1298
1299    Type progType;
1300    Target *target;
1301
1302 public:
1303    Function *main;
1304    Graph calls;
1305
1306    ArrayList allFuncs;
1307    ArrayList allRValues;
1308
1309    uint32_t *code;
1310    uint32_t binSize;
1311    uint32_t tlsSize; // size required for FILE_MEMORY_LOCAL
1312
1313    int maxGPR;
1314
1315    MemoryPool mem_Instruction;
1316    MemoryPool mem_CmpInstruction;
1317    MemoryPool mem_TexInstruction;
1318    MemoryPool mem_FlowInstruction;
1319    MemoryPool mem_LValue;
1320    MemoryPool mem_Symbol;
1321    MemoryPool mem_ImmediateValue;
1322
1323    uint32_t dbgFlags;
1324    uint8_t  optLevel;
1325
1326    void *targetPriv; // e.g. to carry information between passes
1327
1328    const struct nv50_ir_prog_info *driver; // for driver configuration
1329
1330    void releaseInstruction(Instruction *);
1331    void releaseValue(Value *);
1332 };
1333
1334 // TODO: add const version
1335 class Pass
1336 {
1337 public:
1338    bool run(Program *, bool ordered = false, bool skipPhi = false);
1339    bool run(Function *, bool ordered = false, bool skipPhi = false);
1340
1341 private:
1342    // return false to continue with next entity on next higher level
1343    virtual bool visit(Function *) { return true; }
1344    virtual bool visit(BasicBlock *) { return true; }
1345    virtual bool visit(Instruction *) { return false; }
1346
1347    bool doRun(Program *, bool ordered, bool skipPhi);
1348    bool doRun(Function *, bool ordered, bool skipPhi);
1349
1350 protected:
1351    bool err;
1352    Function *func;
1353    Program *prog;
1354 };
1355
1356 // =============================================================================
1357
1358 #include "codegen/nv50_ir_inlines.h"
1359
1360 } // namespace nv50_ir
1361
1362 #endif // __NV50_IR_H__