gallium: remove multiple aliases for TGSI opcodes

This is a source of ongoing confusion.  TGSI has multiple names for
opcodes where the same semantics originate in multiple shader APIs.

For instance, TGSI includes both Mesa/GLSL and DX/SM30 names for
opcodes with the same semantics, but aliases those names to the same
underlying opcode number.

This makes it very difficult to visually inspect two sets of opcodes
(eg in state tracker & driver) and check if they implement the same
functionality.

This patch arbitarily rips out the versions of the opcodes not currently
favoured by the mesa state tracker and leaves us with a single name
for each distinct operation.

5 files changed, 147 insertions, 163 deletions

diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index 8c68a10a38e..b193fd7a0a5 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -2020,8 +2020,7 @@ exec_instruction(
 
    switch (inst->Instruction.Opcode) {
    case TGSI_OPCODE_ARL:
-   case TGSI_OPCODE_FLOOR:
-   /* TGSI_OPCODE_FLR */
+   case TGSI_OPCODE_FLR:
       FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) {
          FETCH( &r[0], 0, chan_index );
          micro_flr( &r[0], &r[0] );
@@ -2290,8 +2289,7 @@ exec_instruction(
       }
       break;
 
-   case TGSI_OPCODE_LERP:
-   /* TGSI_OPCODE_LRP */
+   case TGSI_OPCODE_LRP:
       FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) {
          FETCH(&r[0], 0, chan_index);
          FETCH(&r[1], 1, chan_index);
@@ -2325,8 +2323,7 @@ exec_instruction(
       }
       break;
 
-   case TGSI_OPCODE_DOT2ADD:
-   /* TGSI_OPCODE_DP2A */
+   case TGSI_OPCODE_DP2A:
       FETCH( &r[0], 0, CHAN_X );
       FETCH( &r[1], 1, CHAN_X );
       micro_mul( &r[0], &r[0], &r[1] );
@@ -2354,8 +2351,7 @@ exec_instruction(
       assert (0);
       break;
 
-   case TGSI_OPCODE_FRAC:
-   /* TGSI_OPCODE_FRC */
+   case TGSI_OPCODE_FRC:
       FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) {
          FETCH( &r[0], 0, chan_index );
          micro_frc( &r[0], &r[0] );
@@ -2383,8 +2379,7 @@ exec_instruction(
       }
       break;
 
-   case TGSI_OPCODE_EXPBASE2:
-   /* TGSI_OPCODE_EX2 */
+   case TGSI_OPCODE_EX2:
       FETCH(&r[0], 0, CHAN_X);
 
 #if FAST_MATH
@@ -2398,8 +2393,7 @@ exec_instruction(
       }
       break;
 
-   case TGSI_OPCODE_LOGBASE2:
-   /* TGSI_OPCODE_LG2 */
+   case TGSI_OPCODE_LG2:
       FETCH( &r[0], 0, CHAN_X );
       micro_lg2( &r[0], &r[0] );
       FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) {
@@ -2407,8 +2401,7 @@ exec_instruction(
       }
       break;
 
-   case TGSI_OPCODE_POWER:
-   /* TGSI_OPCODE_POW */
+   case TGSI_OPCODE_POW:
       FETCH(&r[0], 0, CHAN_X);
       FETCH(&r[1], 1, CHAN_X);
 
@@ -2419,8 +2412,7 @@ exec_instruction(
       }
       break;
 
-   case TGSI_OPCODE_CROSSPRODUCT:
-   /* TGSI_OPCODE_XPD */
+   case TGSI_OPCODE_XPD:
       FETCH(&r[0], 0, CHAN_Y);
       FETCH(&r[1], 1, CHAN_Z);
 
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c
index 37f2b66d1f6..29b81155609 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_info.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_info.c
@@ -26,136 +26,147 @@
  **************************************************************************/
 
 #include "util/u_debug.h"
+#include "util/u_memory.h"
 #include "tgsi_info.h"
 
 static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] =
 {
-   { 1, 1, 0, 0, "ARL", NULL, NULL },
-   { 1, 1, 0, 0, "MOV", NULL, NULL },
-   { 1, 1, 0, 0, "LIT", NULL, NULL },
-   { 1, 1, 0, 0, "RCP", "RECIP", NULL },
-   { 1, 1, 0, 0, "RSQ", "RECIPSQRT", NULL },
-   { 1, 1, 0, 0, "EXP", "EXPP", NULL },
-   { 1, 1, 0, 0, "LOG", NULL, NULL },
-   { 1, 2, 0, 0, "MUL", NULL, NULL },
-   { 1, 2, 0, 0, "ADD", NULL, NULL },
-   { 1, 2, 0, 0, "DP3", "DOT3", NULL },
-   { 1, 2, 0, 0, "DP4", "DOT4", NULL },
-   { 1, 2, 0, 0, "DST", NULL, NULL },
-   { 1, 2, 0, 0, "MIN", NULL, NULL },
-   { 1, 2, 0, 0, "MAX", NULL, NULL },
-   { 1, 2, 0, 0, "SLT", "SETLT", NULL },
-   { 1, 2, 0, 0, "SGE", "SETGE", NULL },
-   { 1, 3, 0, 0, "MAD", "MADD", NULL },
-   { 1, 2, 0, 0, "SUB", NULL, NULL },
-   { 1, 3, 0, 0, "LRP", "LERP", NULL },
-   { 1, 3, 0, 0, "CND", NULL, NULL },
-   { 1, 3, 0, 0, "CND0", NULL, NULL },
-   { 1, 3, 0, 0, "DP2A", "DP2ADD", "DOT2ADD" },
-   { 1, 2, 0, 0, "INDEX", NULL, NULL },
-   { 1, 1, 0, 0, "NEGATE", NULL, NULL },
-   { 1, 1, 0, 0, "FRC", "FRAC", NULL },
-   { 1, 3, 0, 0, "CLAMP", NULL, NULL },
-   { 1, 1, 0, 0, "FLR", "FLOOR", NULL },
-   { 1, 1, 0, 0, "ROUND", NULL, NULL },
-   { 1, 1, 0, 0, "EX2", "EXPBASE2", NULL },
-   { 1, 1, 0, 0, "LG2", "LOGBASE2", "LOGP" },
-   { 1, 2, 0, 0, "POW", "POWER", NULL },
-   { 1, 2, 0, 0, "XPD", "CRS", "CROSSPRODUCT" },
-   { 1, 2, 0, 0, "M4X4", "MULTIPLYMATRIX", NULL },
-   { 1, 1, 0, 0, "ABS", NULL, NULL },
-   { 1, 1, 0, 0, "RCC", NULL, NULL },
-   { 1, 2, 0, 0, "DPH", NULL, NULL },
-   { 1, 1, 0, 0, "COS", NULL, NULL },
-   { 1, 1, 0, 0, "DDX", "DSX", NULL },
-   { 1, 1, 0, 0, "DDY", "DSY", NULL },
-   { 0, 0, 0, 0, "KILP", NULL, NULL },
-   { 1, 1, 0, 0, "PK2H", NULL, NULL },
-   { 1, 1, 0, 0, "PK2US", NULL, NULL },
-   { 1, 1, 0, 0, "PK4B", NULL, NULL },
-   { 1, 1, 0, 0, "PK4UB", NULL, NULL },
-   { 1, 2, 0, 0, "RFL", NULL, NULL },
-   { 1, 2, 0, 0, "SEQ", NULL, NULL },
-   { 1, 2, 0, 0, "SFL", NULL, NULL },
-   { 1, 2, 0, 0, "SGT", NULL, NULL },
-   { 1, 1, 0, 0, "SIN", NULL, NULL },
-   { 1, 2, 0, 0, "SLE", NULL, NULL },
-   { 1, 2, 0, 0, "SNE", NULL, NULL },
-   { 1, 2, 0, 0, "STR", NULL, NULL },
-   { 1, 2, 1, 0, "TEX", "TEXLD", NULL },
-   { 1, 4, 1, 0, "TXD", "TEXLDD", NULL },
-   { 1, 2, 1, 0, "TXP", NULL, NULL },
-   { 1, 1, 0, 0, "UP2H", NULL, NULL },
-   { 1, 1, 0, 0, "UP2US", NULL, NULL },
-   { 1, 1, 0, 0, "UP4B", NULL, NULL },
-   { 1, 1, 0, 0, "UP4UB", NULL, NULL },
-   { 1, 3, 0, 0, "X2D", NULL, NULL },
-   { 1, 1, 0, 0, "ARA", NULL, NULL },
-   { 1, 1, 0, 0, "ARR", "MOVA", NULL },
-   { 0, 1, 0, 0, "BRA", NULL, NULL },
-   { 0, 0, 0, 1, "CAL", "CALL", NULL },
-   { 0, 0, 0, 0, "RET", NULL, NULL },
-   { 1, 1, 0, 0, "SGN", "SSG", NULL },
-   { 1, 3, 0, 0, "CMP", NULL, NULL },
-   { 1, 1, 0, 0, "SCS", "SINCOS", NULL },
-   { 1, 2, 1, 0, "TXB", "TEXLDB", NULL },
-   { 1, 1, 0, 0, "NRM", NULL, NULL },
-   { 1, 2, 0, 0, "DIV", NULL, NULL },
-   { 1, 2, 0, 0, "DP2", NULL, NULL },
-   { 1, 2, 1, 0, "TXL", NULL, NULL },
-   { 0, 0, 0, 0, "BRK", "BREAK", NULL },
-   { 0, 1, 0, 1, "IF", NULL, NULL },
-   { 0, 0, 0, 0, "LOOP", NULL, NULL },
-   { 0, 1, 0, 0, "REP", NULL, NULL },
-   { 0, 0, 0, 1, "ELSE", NULL, NULL },
-   { 0, 0, 0, 0, "ENDIF", NULL, NULL },
-   { 0, 0, 0, 0, "ENDLOOP", NULL, NULL },
-   { 0, 0, 0, 0, "ENDREP", NULL, NULL },
-   { 0, 1, 0, 0, "PUSHA", NULL, NULL },
-   { 1, 0, 0, 0, "POPA", NULL, NULL },
-   { 1, 1, 0, 0, "CEIL", NULL, NULL },
-   { 1, 1, 0, 0, "I2F", NULL, NULL },
-   { 1, 1, 0, 0, "NOT", NULL, NULL },
-   { 1, 1, 0, 0, "INT", "TRUNC", NULL },
-   { 1, 2, 0, 0, "SHL", NULL, NULL },
-   { 1, 2, 0, 0, "SHR", NULL, NULL },
-   { 1, 2, 0, 0, "AND", NULL, NULL },
-   { 1, 2, 0, 0, "OR", NULL, NULL },
-   { 1, 2, 0, 0, "MOD", NULL, NULL },
-   { 1, 2, 0, 0, "XOR", NULL, NULL },
-   { 1, 3, 0, 0, "SAD", NULL, NULL },
-   { 1, 2, 1, 0, "TXF", NULL, NULL },
-   { 1, 2, 1, 0, "TXQ", NULL, NULL },
-   { 0, 0, 0, 0, "CONT", NULL, NULL },
-   { 0, 0, 0, 0, "EMIT", NULL, NULL },
-   { 0, 0, 0, 0, "ENDPRIM", NULL, NULL },
-   { 0, 0, 0, 1, "BGNLOOP2", NULL, NULL },
-   { 0, 0, 0, 0, "BGNSUB", NULL, NULL },
-   { 0, 0, 0, 1, "ENDLOOP2", NULL, NULL },
-   { 0, 0, 0, 0, "ENDSUB", NULL, NULL },
-   { 1, 1, 0, 0, "NOISE1", NULL, NULL },
-   { 1, 1, 0, 0, "NOISE2", NULL, NULL },
-   { 1, 1, 0, 0, "NOISE3", NULL, NULL },
-   { 1, 1, 0, 0, "NOISE4", NULL, NULL },
-   { 0, 0, 0, 0, "NOP", NULL, NULL },
-   { 1, 2, 0, 0, "M4X3", NULL, NULL },
-   { 1, 2, 0, 0, "M3X4", NULL, NULL },
-   { 1, 2, 0, 0, "M3X3", NULL, NULL },
-   { 1, 2, 0, 0, "M3X2", NULL, NULL },
-   { 1, 1, 0, 0, "NRM4", NULL, NULL },
-   { 0, 1, 0, 0, "CALLNZ", NULL, NULL },
-   { 0, 1, 0, 0, "IFC", NULL, NULL },
-   { 0, 1, 0, 0, "BREAKC", NULL, NULL },
-   { 0, 1, 0, 0, "KIL", "TEXKILL", NULL },
-   { 0, 0, 0, 0, "END", NULL, NULL },
-   { 1, 1, 0, 0, "SWZ", NULL, NULL }
+   { 1, 1, 0, 0, "ARL", TGSI_OPCODE_ARL },
+   { 1, 1, 0, 0, "MOV", TGSI_OPCODE_MOV },
+   { 1, 1, 0, 0, "LIT", TGSI_OPCODE_LIT },
+   { 1, 1, 0, 0, "RCP", TGSI_OPCODE_RCP },
+   { 1, 1, 0, 0, "RSQ", TGSI_OPCODE_RSQ },
+   { 1, 1, 0, 0, "EXP", TGSI_OPCODE_EXP },
+   { 1, 1, 0, 0, "LOG", TGSI_OPCODE_LOG },
+   { 1, 2, 0, 0, "MUL", TGSI_OPCODE_MUL },
+   { 1, 2, 0, 0, "ADD", TGSI_OPCODE_ADD },
+   { 1, 2, 0, 0, "DP3", TGSI_OPCODE_DP3 },
+   { 1, 2, 0, 0, "DP4", TGSI_OPCODE_DP4 },
+   { 1, 2, 0, 0, "DST", TGSI_OPCODE_DST },
+   { 1, 2, 0, 0, "MIN", TGSI_OPCODE_MIN },
+   { 1, 2, 0, 0, "MAX", TGSI_OPCODE_MAX },
+   { 1, 2, 0, 0, "SLT", TGSI_OPCODE_SLT },
+   { 1, 2, 0, 0, "SGE", TGSI_OPCODE_SGE },
+   { 1, 3, 0, 0, "MAD", TGSI_OPCODE_MAD },
+   { 1, 2, 0, 0, "SUB", TGSI_OPCODE_SUB },
+   { 1, 3, 0, 0, "LRP", TGSI_OPCODE_LRP },
+   { 1, 3, 0, 0, "CND", TGSI_OPCODE_CND },
+   { 1, 3, 0, 0, "CND0", TGSI_OPCODE_CND0 },
+   { 1, 3, 0, 0, "DP2A", TGSI_OPCODE_DP2A },
+   { 1, 2, 0, 0, "INDEX", TGSI_OPCODE_INDEX },
+   { 1, 1, 0, 0, "NEGATE", TGSI_OPCODE_NEGATE },
+   { 1, 1, 0, 0, "FRC", TGSI_OPCODE_FRC },
+   { 1, 3, 0, 0, "CLAMP", TGSI_OPCODE_CLAMP },
+   { 1, 1, 0, 0, "FLR", TGSI_OPCODE_FLR },
+   { 1, 1, 0, 0, "ROUND", TGSI_OPCODE_ROUND },
+   { 1, 1, 0, 0, "EX2", TGSI_OPCODE_EX2 },
+   { 1, 1, 0, 0, "LG2", TGSI_OPCODE_LG2 },
+   { 1, 2, 0, 0, "POW", TGSI_OPCODE_POW },
+   { 1, 2, 0, 0, "XPD", TGSI_OPCODE_XPD },
+   { 1, 2, 0, 0, "M4X4", TGSI_OPCODE_MULTIPLYMATRIX },
+   { 1, 1, 0, 0, "ABS", TGSI_OPCODE_ABS },
+   { 1, 1, 0, 0, "RCC", TGSI_OPCODE_RCC },
+   { 1, 2, 0, 0, "DPH", TGSI_OPCODE_DPH },
+   { 1, 1, 0, 0, "COS", TGSI_OPCODE_COS },
+   { 1, 1, 0, 0, "DDX", TGSI_OPCODE_DDX },
+   { 1, 1, 0, 0, "DDY", TGSI_OPCODE_DDY },
+   { 0, 0, 0, 0, "KILP", TGSI_OPCODE_KILP },
+   { 1, 1, 0, 0, "PK2H", TGSI_OPCODE_PK2H },
+   { 1, 1, 0, 0, "PK2US", TGSI_OPCODE_PK2US },
+   { 1, 1, 0, 0, "PK4B", TGSI_OPCODE_PK4B },
+   { 1, 1, 0, 0, "PK4UB", TGSI_OPCODE_PK4UB },
+   { 1, 2, 0, 0, "RFL", TGSI_OPCODE_RFL },
+   { 1, 2, 0, 0, "SEQ", TGSI_OPCODE_SEQ },
+   { 1, 2, 0, 0, "SFL", TGSI_OPCODE_SFL },
+   { 1, 2, 0, 0, "SGT", TGSI_OPCODE_SGT },
+   { 1, 1, 0, 0, "SIN", TGSI_OPCODE_SIN },
+   { 1, 2, 0, 0, "SLE", TGSI_OPCODE_SLE },
+   { 1, 2, 0, 0, "SNE", TGSI_OPCODE_SNE },
+   { 1, 2, 0, 0, "STR", TGSI_OPCODE_STR },
+   { 1, 2, 1, 0, "TEX", TGSI_OPCODE_TEX },
+   { 1, 4, 1, 0, "TXD", TGSI_OPCODE_TXD },
+   { 1, 2, 1, 0, "TXP", TGSI_OPCODE_TXP },
+   { 1, 1, 0, 0, "UP2H", TGSI_OPCODE_UP2H },
+   { 1, 1, 0, 0, "UP2US", TGSI_OPCODE_UP2US },
+   { 1, 1, 0, 0, "UP4B", TGSI_OPCODE_UP4B },
+   { 1, 1, 0, 0, "UP4UB", TGSI_OPCODE_UP4UB },
+   { 1, 3, 0, 0, "X2D", TGSI_OPCODE_X2D },
+   { 1, 1, 0, 0, "ARA", TGSI_OPCODE_ARA },
+   { 1, 1, 0, 0, "ARR", TGSI_OPCODE_ARR },
+   { 0, 1, 0, 0, "BRA", TGSI_OPCODE_BRA },
+   { 0, 0, 0, 1, "CAL", TGSI_OPCODE_CAL },
+   { 0, 0, 0, 0, "RET", TGSI_OPCODE_RET },
+   { 1, 1, 0, 0, "SSG", TGSI_OPCODE_SSG },
+   { 1, 3, 0, 0, "CMP", TGSI_OPCODE_CMP },
+   { 1, 1, 0, 0, "SCS", TGSI_OPCODE_SCS },
+   { 1, 2, 1, 0, "TXB", TGSI_OPCODE_TXB },
+   { 1, 1, 0, 0, "NRM", TGSI_OPCODE_NRM },
+   { 1, 2, 0, 0, "DIV", TGSI_OPCODE_DIV },
+   { 1, 2, 0, 0, "DP2", TGSI_OPCODE_DP2 },
+   { 1, 2, 1, 0, "TXL", TGSI_OPCODE_TXL },
+   { 0, 0, 0, 0, "BRK", TGSI_OPCODE_BRK },
+   { 0, 1, 0, 1, "IF", TGSI_OPCODE_IF },
+   { 0, 0, 0, 0, "LOOP", TGSI_OPCODE_LOOP },
+   { 0, 1, 0, 0, "REP", TGSI_OPCODE_REP },
+   { 0, 0, 0, 1, "ELSE", TGSI_OPCODE_ELSE },
+   { 0, 0, 0, 0, "ENDIF", TGSI_OPCODE_ENDIF },
+   { 0, 0, 0, 0, "ENDLOOP", TGSI_OPCODE_ENDLOOP },
+   { 0, 0, 0, 0, "ENDREP", TGSI_OPCODE_ENDREP },
+   { 0, 1, 0, 0, "PUSHA", TGSI_OPCODE_PUSHA },
+   { 1, 0, 0, 0, "POPA", TGSI_OPCODE_POPA },
+   { 1, 1, 0, 0, "CEIL", TGSI_OPCODE_CEIL },
+   { 1, 1, 0, 0, "I2F", TGSI_OPCODE_I2F },
+   { 1, 1, 0, 0, "NOT", TGSI_OPCODE_NOT },
+   { 1, 1, 0, 0, "TRUNC", TGSI_OPCODE_TRUNC },
+   { 1, 2, 0, 0, "SHL", TGSI_OPCODE_SHL },
+   { 1, 2, 0, 0, "SHR", TGSI_OPCODE_SHR },
+   { 1, 2, 0, 0, "AND", TGSI_OPCODE_AND },
+   { 1, 2, 0, 0, "OR", TGSI_OPCODE_OR },
+   { 1, 2, 0, 0, "MOD", TGSI_OPCODE_MOD },
+   { 1, 2, 0, 0, "XOR", TGSI_OPCODE_XOR },
+   { 1, 3, 0, 0, "SAD", TGSI_OPCODE_SAD },
+   { 1, 2, 1, 0, "TXF", TGSI_OPCODE_TXF },
+   { 1, 2, 1, 0, "TXQ", TGSI_OPCODE_TXQ },
+   { 0, 0, 0, 0, "CONT", TGSI_OPCODE_CONT },
+   { 0, 0, 0, 0, "EMIT", TGSI_OPCODE_EMIT },
+   { 0, 0, 0, 0, "ENDPRIM", TGSI_OPCODE_ENDPRIM },
+   { 0, 0, 0, 1, "BGNLOOP2", TGSI_OPCODE_BGNLOOP2 },
+   { 0, 0, 0, 0, "BGNSUB", TGSI_OPCODE_BGNSUB },
+   { 0, 0, 0, 1, "ENDLOOP2", TGSI_OPCODE_ENDLOOP2 },
+   { 0, 0, 0, 0, "ENDSUB", TGSI_OPCODE_ENDSUB },
+   { 1, 1, 0, 0, "NOISE1", TGSI_OPCODE_NOISE1 },
+   { 1, 1, 0, 0, "NOISE2", TGSI_OPCODE_NOISE2 },
+   { 1, 1, 0, 0, "NOISE3", TGSI_OPCODE_NOISE3 },
+   { 1, 1, 0, 0, "NOISE4", TGSI_OPCODE_NOISE4 },
+   { 0, 0, 0, 0, "NOP", TGSI_OPCODE_NOP },
+   { 1, 2, 0, 0, "M4X3", TGSI_OPCODE_M4X3 },
+   { 1, 2, 0, 0, "M3X4", TGSI_OPCODE_M3X4 },
+   { 1, 2, 0, 0, "M3X3", TGSI_OPCODE_M3X3 },
+   { 1, 2, 0, 0, "M3X2", TGSI_OPCODE_M3X2 },
+   { 1, 1, 0, 0, "NRM4", TGSI_OPCODE_NRM4 },
+   { 0, 1, 0, 0, "CALLNZ", TGSI_OPCODE_CALLNZ },
+   { 0, 1, 0, 0, "IFC", TGSI_OPCODE_IFC },
+   { 0, 1, 0, 0, "BREAKC", TGSI_OPCODE_BREAKC },
+   { 0, 1, 0, 0, "KIL", TGSI_OPCODE_KIL },
+   { 0, 0, 0, 0, "END", TGSI_OPCODE_END },
+   { 1, 1, 0, 0, "SWZ", TGSI_OPCODE_SWZ }
 };
 
 const struct tgsi_opcode_info *
 tgsi_get_opcode_info( uint opcode )
 {
+   static boolean firsttime = 1;
+
+   if (firsttime) {
+      unsigned i;
+      firsttime = 0;
+      for (i = 0; i < Elements(opcode_info); i++)
+         assert(opcode_info[i].opcode == i);
+   }
+   
    if (opcode < TGSI_OPCODE_LAST)
       return &opcode_info[opcode];
+
    assert( 0 );
    return NULL;
 }
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.h b/src/gallium/auxiliary/tgsi/tgsi_info.h
index 077e25acd7f..16577598bb0 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_info.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_info.h
@@ -41,8 +41,7 @@ struct tgsi_opcode_info
    boolean is_tex;
    boolean is_branch;
    const char *mnemonic;
-   const char *alt_mnemonic1;
-   const char *alt_mnemonic2;
+   uint opcode;
 };
 
 const struct tgsi_opcode_info *
diff --git a/src/gallium/auxiliary/tgsi/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
index c3470176f93..a2d4627da9c 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
@@ -2064,8 +2064,7 @@ emit_instruction(
       }
       break;
 
-   case TGSI_OPCODE_LERP:
-   /* TGSI_OPCODE_LRP */
+   case TGSI_OPCODE_LRP:
       FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
          FETCH( func, *inst, 0, 0, chan_index );
          FETCH( func, *inst, 1, 1, chan_index );
@@ -2085,8 +2084,7 @@ emit_instruction(
       return 0;
       break;
 
-   case TGSI_OPCODE_DOT2ADD:
-   /* TGSI_OPCODE_DP2A */
+   case TGSI_OPCODE_DP2A:
       FETCH( func, *inst, 0, 0, CHAN_X );  /* xmm0 = src[0].x */
       FETCH( func, *inst, 1, 1, CHAN_X );  /* xmm1 = src[1].x */
       emit_mul( func, 0, 1 );              /* xmm0 = xmm0 * xmm1 */
@@ -2109,8 +2107,7 @@ emit_instruction(
       return 0;
       break;
 
-   case TGSI_OPCODE_FRAC:
-   /* TGSI_OPCODE_FRC */
+   case TGSI_OPCODE_FRC:
       FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
          FETCH( func, *inst, 0, 0, chan_index );
          emit_frc( func, 0, 0 );
@@ -2122,8 +2119,7 @@ emit_instruction(
       return 0;
       break;
 
-   case TGSI_OPCODE_FLOOR:
-   /* TGSI_OPCODE_FLR */
+   case TGSI_OPCODE_FLR:
       FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
          FETCH( func, *inst, 0, 0, chan_index );
          emit_flr( func, 0, 0 );
@@ -2139,8 +2135,7 @@ emit_instruction(
       }
       break;
 
-   case TGSI_OPCODE_EXPBASE2:
-   /* TGSI_OPCODE_EX2 */
+   case TGSI_OPCODE_EX2:
       FETCH( func, *inst, 0, 0, CHAN_X );
       emit_ex2( func, 0, 0 );
       FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
@@ -2148,8 +2143,7 @@ emit_instruction(
       }
       break;
 
-   case TGSI_OPCODE_LOGBASE2:
-   /* TGSI_OPCODE_LG2 */
+   case TGSI_OPCODE_LG2:
       FETCH( func, *inst, 0, 0, CHAN_X );
       emit_lg2( func, 0, 0 );
       FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
@@ -2157,8 +2151,7 @@ emit_instruction(
       }
       break;
 
-   case TGSI_OPCODE_POWER:
-   /* TGSI_OPCODE_POW */
+   case TGSI_OPCODE_POW:
       FETCH( func, *inst, 0, 0, CHAN_X );
       FETCH( func, *inst, 1, 1, CHAN_X );
       emit_pow( func, 0, 0, 0, 1 );
@@ -2167,8 +2160,7 @@ emit_instruction(
       }
       break;
 
-   case TGSI_OPCODE_CROSSPRODUCT:
-   /* TGSI_OPCODE_XPD */
+   case TGSI_OPCODE_XPD:
       if( IS_DST0_CHANNEL_ENABLED( *inst, CHAN_X ) ||
           IS_DST0_CHANNEL_ENABLED( *inst, CHAN_Y ) ) {
          FETCH( func, *inst, 1, 1, CHAN_Z );
diff --git a/src/gallium/auxiliary/tgsi/tgsi_text.c b/src/gallium/auxiliary/tgsi/tgsi_text.c
index 3024da6a328..bfcbc40982a 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_text.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_text.c
@@ -789,16 +789,6 @@ match_inst_mnemonic(const char **pcur,
    if (str_match_no_case(pcur, info->mnemonic)) {
       return TRUE;
    }
-   if (info->alt_mnemonic1) {
-      if (str_match_no_case(pcur, info->alt_mnemonic1)) {
-         return TRUE;
-      }
-      if (info->alt_mnemonic2) {
-         if (str_match_no_case(pcur, info->alt_mnemonic2)) {
-            return TRUE;
-         }
-      }
-   }
    return FALSE;
 }