Naive implementation of IF/ELSE/ENDIF.

Handle TGSI labels correctly.
Enhance MESA opcode info queries.

1 files changed, 98 insertions, 85 deletions

diff --git a/src/mesa/shader/prog_instruction.c b/src/mesa/shader/prog_instruction.c
index d6b5652a276..c84c76fd5bd 100644
--- a/src/mesa/shader/prog_instruction.c
+++ b/src/mesa/shader/prog_instruction.c
@@ -126,6 +126,7 @@ struct instruction_info
    gl_inst_opcode Opcode;
    const char *Name;
    GLuint NumSrcRegs;
+   GLuint NumDstRegs;
 };
 
 /**
@@ -133,91 +134,91 @@ struct instruction_info
  * \note Opcode should equal array index!
  */
 static const struct instruction_info InstInfo[MAX_OPCODE] = {
-   { OPCODE_NOP,    "NOP",   0 },
-   { OPCODE_ABS,    "ABS",   1 },
-   { OPCODE_ADD,    "ADD",   2 },
-   { OPCODE_ARA,    "ARA",   1 },
-   { OPCODE_ARL,    "ARL",   1 },
-   { OPCODE_ARL_NV, "ARL",   1 },
-   { OPCODE_ARR,    "ARL",   1 },
-   { OPCODE_BGNLOOP,"BGNLOOP", 0 },
-   { OPCODE_BGNSUB, "BGNSUB", 0 },
-   { OPCODE_BRA,    "BRA",   0 },
-   { OPCODE_BRK,    "BRK",   0 },
-   { OPCODE_CAL,    "CAL",   0 },
-   { OPCODE_CMP,    "CMP",   3 },
-   { OPCODE_CONT,   "CONT",  0 },
-   { OPCODE_COS,    "COS",   1 },
-   { OPCODE_DDX,    "DDX",   1 },
-   { OPCODE_DDY,    "DDY",   1 },
-   { OPCODE_DP3,    "DP3",   2 },
-   { OPCODE_DP4,    "DP4",   2 },
-   { OPCODE_DPH,    "DPH",   2 },
-   { OPCODE_DST,    "DST",   2 },
-   { OPCODE_ELSE,   "ELSE",  0 },
-   { OPCODE_END,    "END",   0 },
-   { OPCODE_ENDIF,  "ENDIF", 0 },
-   { OPCODE_ENDLOOP,"ENDLOOP", 0 },
-   { OPCODE_ENDSUB, "ENDSUB", 0 },
-   { OPCODE_EX2,    "EX2",   1 },
-   { OPCODE_EXP,    "EXP",   1 },
-   { OPCODE_FLR,    "FLR",   1 },
-   { OPCODE_FRC,    "FRC",   1 },
-   { OPCODE_IF,     "IF",    0 },
-   { OPCODE_INT,    "INT",   1 },
-   { OPCODE_KIL,    "KIL",   1 },
-   { OPCODE_KIL_NV, "KIL",   0 },
-   { OPCODE_LG2,    "LG2",   1 },
-   { OPCODE_LIT,    "LIT",   1 },
-   { OPCODE_LOG,    "LOG",   1 },
-   { OPCODE_LRP,    "LRP",   3 },
-   { OPCODE_MAD,    "MAD",   3 },
-   { OPCODE_MAX,    "MAX",   2 },
-   { OPCODE_MIN,    "MIN",   2 },
-   { OPCODE_MOV,    "MOV",   1 },
-   { OPCODE_MUL,    "MUL",   2 },
-   { OPCODE_NOISE1, "NOISE1", 1 },
-   { OPCODE_NOISE2, "NOISE2", 1 },
-   { OPCODE_NOISE3, "NOISE3", 1 },
-   { OPCODE_NOISE4, "NOISE4", 1 },
-   { OPCODE_PK2H,   "PK2H",  1 },
-   { OPCODE_PK2US,  "PK2US", 1 },
-   { OPCODE_PK4B,   "PK4B",  1 },
-   { OPCODE_PK4UB,  "PK4UB", 1 },
-   { OPCODE_POW,    "POW",   2 },
-   { OPCODE_POPA,   "POPA",  0 },
-   { OPCODE_PRINT,  "PRINT", 1 },
-   { OPCODE_PUSHA,  "PUSHA", 0 },
-   { OPCODE_RCC,    "RCC",   1 },
-   { OPCODE_RCP,    "RCP",   1 },
-   { OPCODE_RET,    "RET",   0 },
-   { OPCODE_RFL,    "RFL",   1 },
-   { OPCODE_RSQ,    "RSQ",   1 },
-   { OPCODE_SCS,    "SCS",   1 },
-   { OPCODE_SEQ,    "SEQ",   2 },
-   { OPCODE_SFL,    "SFL",   0 },
-   { OPCODE_SGE,    "SGE",   2 },
-   { OPCODE_SGT,    "SGT",   2 },
-   { OPCODE_SIN,    "SIN",   1 },
-   { OPCODE_SLE,    "SLE",   2 },
-   { OPCODE_SLT,    "SLT",   2 },
-   { OPCODE_SNE,    "SNE",   2 },
-   { OPCODE_SSG,    "SSG",   1 },
-   { OPCODE_STR,    "STR",   0 },
-   { OPCODE_SUB,    "SUB",   2 },
-   { OPCODE_SWZ,    "SWZ",   1 },
-   { OPCODE_TEX,    "TEX",   1 },
-   { OPCODE_TXB,    "TXB",   1 },
-   { OPCODE_TXD,    "TXD",   3 },
-   { OPCODE_TXL,    "TXL",   1 },
-   { OPCODE_TXP,    "TXP",   1 },
-   { OPCODE_TXP_NV, "TXP",   1 },
-   { OPCODE_UP2H,   "UP2H",  1 },
-   { OPCODE_UP2US,  "UP2US", 1 },
-   { OPCODE_UP4B,   "UP4B",  1 },
-   { OPCODE_UP4UB,  "UP4UB", 1 },
-   { OPCODE_X2D,    "X2D",   3 },
-   { OPCODE_XPD,    "XPD",   2 }
+   { OPCODE_NOP,    "NOP",     0, 0 },
+   { OPCODE_ABS,    "ABS",     1, 1 },
+   { OPCODE_ADD,    "ADD",     2, 1 },
+   { OPCODE_ARA,    "ARA",     1, 1 },
+   { OPCODE_ARL,    "ARL",     1, 1 },
+   { OPCODE_ARL_NV, "ARL",     1, 1 },
+   { OPCODE_ARR,    "ARL",     1, 1 },
+   { OPCODE_BGNLOOP,"BGNLOOP", 0, 0 },
+   { OPCODE_BGNSUB, "BGNSUB",  0, 0 },
+   { OPCODE_BRA,    "BRA",     0, 0 },
+   { OPCODE_BRK,    "BRK",     0, 0 },
+   { OPCODE_CAL,    "CAL",     0, 0 },
+   { OPCODE_CMP,    "CMP",     3, 1 },
+   { OPCODE_CONT,   "CONT",    0, 0 },
+   { OPCODE_COS,    "COS",     1, 1 },
+   { OPCODE_DDX,    "DDX",     1, 1 },
+   { OPCODE_DDY,    "DDY",     1, 1 },
+   { OPCODE_DP3,    "DP3",     2, 1 },
+   { OPCODE_DP4,    "DP4",     2, 1 },
+   { OPCODE_DPH,    "DPH",     2, 1 },
+   { OPCODE_DST,    "DST",     2, 1 },
+   { OPCODE_ELSE,   "ELSE",    0, 0 },
+   { OPCODE_END,    "END",     0, 0 },
+   { OPCODE_ENDIF,  "ENDIF",   0, 0 },
+   { OPCODE_ENDLOOP,"ENDLOOP", 0, 0 },
+   { OPCODE_ENDSUB, "ENDSUB",  0, 0 },
+   { OPCODE_EX2,    "EX2",     1, 1 },
+   { OPCODE_EXP,    "EXP",     1, 1 },
+   { OPCODE_FLR,    "FLR",     1, 1 },
+   { OPCODE_FRC,    "FRC",     1, 1 },
+   { OPCODE_IF,     "IF",      1, 0 },
+   { OPCODE_INT,    "INT",     1, 1 },
+   { OPCODE_KIL,    "KIL",     1, 0 },
+   { OPCODE_KIL_NV, "KIL",     0, 0 },
+   { OPCODE_LG2,    "LG2",     1, 1 },
+   { OPCODE_LIT,    "LIT",     1, 1 },
+   { OPCODE_LOG,    "LOG",     1, 1 },
+   { OPCODE_LRP,    "LRP",     3, 1 },
+   { OPCODE_MAD,    "MAD",     3, 1 },
+   { OPCODE_MAX,    "MAX",     2, 1 },
+   { OPCODE_MIN,    "MIN",     2, 1 },
+   { OPCODE_MOV,    "MOV",     1, 1 },
+   { OPCODE_MUL,    "MUL",     2, 1 },
+   { OPCODE_NOISE1, "NOISE1",  1, 1 },
+   { OPCODE_NOISE2, "NOISE2",  1, 1 },
+   { OPCODE_NOISE3, "NOISE3",  1, 1 },
+   { OPCODE_NOISE4, "NOISE4",  1, 1 },
+   { OPCODE_PK2H,   "PK2H",    1, 1 },
+   { OPCODE_PK2US,  "PK2US",   1, 1 },
+   { OPCODE_PK4B,   "PK4B",    1, 1 },
+   { OPCODE_PK4UB,  "PK4UB",   1, 1 },
+   { OPCODE_POW,    "POW",     2, 1 },
+   { OPCODE_POPA,   "POPA",    0, 0 },
+   { OPCODE_PRINT,  "PRINT",   1, 0 },
+   { OPCODE_PUSHA,  "PUSHA",   0, 0 },
+   { OPCODE_RCC,    "RCC",     1, 1 },
+   { OPCODE_RCP,    "RCP",     1, 1 },
+   { OPCODE_RET,    "RET",     0, 0 },
+   { OPCODE_RFL,    "RFL",     1, 1 },
+   { OPCODE_RSQ,    "RSQ",     1, 1 },
+   { OPCODE_SCS,    "SCS",     1, 1 },
+   { OPCODE_SEQ,    "SEQ",     2, 1 },
+   { OPCODE_SFL,    "SFL",     0, 1 },
+   { OPCODE_SGE,    "SGE",     2, 1 },
+   { OPCODE_SGT,    "SGT",     2, 1 },
+   { OPCODE_SIN,    "SIN",     1, 1 },
+   { OPCODE_SLE,    "SLE",     2, 1 },
+   { OPCODE_SLT,    "SLT",     2, 1 },
+   { OPCODE_SNE,    "SNE",     2, 1 },
+   { OPCODE_SSG,    "SSG",     1, 1 },
+   { OPCODE_STR,    "STR",     0, 1 },
+   { OPCODE_SUB,    "SUB",     2, 1 },
+   { OPCODE_SWZ,    "SWZ",     1, 1 },
+   { OPCODE_TEX,    "TEX",     1, 1 },
+   { OPCODE_TXB,    "TXB",     1, 1 },
+   { OPCODE_TXD,    "TXD",     3, 1 },
+   { OPCODE_TXL,    "TXL",     1, 1 },
+   { OPCODE_TXP,    "TXP",     1, 1 },
+   { OPCODE_TXP_NV, "TXP",     1, 1 },
+   { OPCODE_UP2H,   "UP2H",    1, 1 },
+   { OPCODE_UP2US,  "UP2US",   1, 1 },
+   { OPCODE_UP4B,   "UP4B",    1, 1 },
+   { OPCODE_UP4UB,  "UP4UB",   1, 1 },
+   { OPCODE_X2D,    "X2D",     3, 1 },
+   { OPCODE_XPD,    "XPD",     2, 1 }
 };
 
 
@@ -234,6 +235,18 @@ _mesa_num_inst_src_regs(gl_inst_opcode opcode)
 
 
 /**
+ * Return the number of dst registers for the given instruction/opcode.
+ */
+GLuint
+_mesa_num_inst_dst_regs(gl_inst_opcode opcode)
+{
+   ASSERT(opcode == InstInfo[opcode].Opcode);
+   ASSERT(OPCODE_XPD == InstInfo[OPCODE_XPD].Opcode);
+   return InstInfo[opcode].NumDstRegs;
+}
+
+
+/**
  * Return string name for given program opcode.
  */
 const char *