gallium/util: remove u_linkage

Does not appear to be used in tree. Coverity spotted some errors in the
bitmask stuff, but the whole thing appears to be unused.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Brian Paul <brianp@vmware.com>

3 files changed, 0 insertions, 218 deletions

diff --git a/src/gallium/auxiliary/Makefile.sources b/src/gallium/auxiliary/Makefile.sources
index b7174d6..09496fa 100644
--- a/src/gallium/auxiliary/Makefile.sources
+++ b/src/gallium/auxiliary/Makefile.sources
@@ -251,8 +251,6 @@ C_SOURCES := \
 	util/u_keymap.h \
 	util/u_linear.c \
 	util/u_linear.h \
-	util/u_linkage.c \
-	util/u_linkage.h \
 	util/u_math.c \
 	util/u_math.h \
 	util/u_memory.h \
diff --git a/src/gallium/auxiliary/util/u_linkage.c b/src/gallium/auxiliary/util/u_linkage.c
deleted file mode 100644
index 245d941..0000000
--- a/src/gallium/auxiliary/util/u_linkage.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2010 Luca Barbieri
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include "util/u_debug.h"
-#include "pipe/p_shader_tokens.h"
-#include "tgsi/tgsi_parse.h"
-#include "tgsi/tgsi_scan.h"
-#include "util/u_linkage.h"
-
-/* we must only record the registers that are actually used, not just declared */
-static INLINE boolean
-util_semantic_set_test_and_set(struct util_semantic_set *set, unsigned value)
-{
-   unsigned mask = 1 << (value % (sizeof(long) * 8));
-   unsigned long *p = &set->masks[value / (sizeof(long) * 8)];
-   unsigned long v = *p & mask;
-   *p |= mask;
-   return !!v;
-}
-
-unsigned
-util_semantic_set_from_program_file(struct util_semantic_set *set, const struct tgsi_token *tokens, enum tgsi_file_type file)
-{
-   struct tgsi_shader_info info;
-   struct tgsi_parse_context parse;
-   unsigned count = 0;
-   ubyte *semantic_name;
-   ubyte *semantic_index;
-
-   tgsi_scan_shader(tokens, &info);
-
-   if(file == TGSI_FILE_INPUT)
-   {
-      semantic_name = info.input_semantic_name;
-      semantic_index = info.input_semantic_index;
-   }
-   else if(file == TGSI_FILE_OUTPUT)
-   {
-      semantic_name = info.output_semantic_name;
-      semantic_index = info.output_semantic_index;
-   }
-   else
-   {
-      assert(0);
-      semantic_name = NULL;
-      semantic_index = NULL;
-   }
-
-   tgsi_parse_init(&parse, tokens);
-
-   memset(set->masks, 0, sizeof(set->masks));
-   while(!tgsi_parse_end_of_tokens(&parse))
-   {
-      tgsi_parse_token(&parse);
-
-      if(parse.FullToken.Token.Type == TGSI_TOKEN_TYPE_INSTRUCTION)
-      {
-	 const struct tgsi_full_instruction *finst = &parse.FullToken.FullInstruction;
-	 unsigned i;
-	 for(i = 0; i < finst->Instruction.NumDstRegs; ++i)
-	 {
-	    if(finst->Dst[i].Register.File == file)
-	    {
-	       unsigned idx = finst->Dst[i].Register.Index;
-	       if(semantic_name[idx] == TGSI_SEMANTIC_GENERIC)
-	       {
-		  if(!util_semantic_set_test_and_set(set, semantic_index[idx]))
-		     ++count;
-	       }
-	    }
-	 }
-
-	 for(i = 0; i < finst->Instruction.NumSrcRegs; ++i)
-	 {
-	    if(finst->Src[i].Register.File == file)
-	    {
-	       unsigned idx = finst->Src[i].Register.Index;
-	       if(semantic_name[idx] == TGSI_SEMANTIC_GENERIC)
-	       {
-		  if(!util_semantic_set_test_and_set(set, semantic_index[idx]))
-		     ++count;
-	       }
-	    }
-	 }
-      }
-   }
-   tgsi_parse_free(&parse);
-
-   return count;
-}
-
-#define UTIL_SEMANTIC_SET_FOR_EACH(i, set) for(i = 0; i < 256; ++i) if(set->masks[i / (sizeof(long) * 8)] & (1 << (i % (sizeof(long) * 8))))
-
-void
-util_semantic_layout_from_set(unsigned char *layout, const struct util_semantic_set *set, unsigned efficient_slots, unsigned num_slots)
-{
-   int first = -1;
-   int last = -1;
-   unsigned i;
-
-   memset(layout, 0xff, num_slots);
-
-   UTIL_SEMANTIC_SET_FOR_EACH(i, set)
-   {
-      if(first < 0)
-	 first = i;
-      last = i;
-   }
-
-   if (last < (int) efficient_slots)
-   {
-      UTIL_SEMANTIC_SET_FOR_EACH(i, set)
-         layout[i] = i;
-   }
-   else if ((last - first) < (int) efficient_slots)
-   {
-      UTIL_SEMANTIC_SET_FOR_EACH(i, set)
-         layout[i - first] = i;
-   }
-   else
-   {
-      unsigned idx = 0;
-      UTIL_SEMANTIC_SET_FOR_EACH(i, set)
-         layout[idx++] = i;
-   }
-}
diff --git a/src/gallium/auxiliary/util/u_linkage.h b/src/gallium/auxiliary/util/u_linkage.h
deleted file mode 100644
index 7b23123..0000000
--- a/src/gallium/auxiliary/util/u_linkage.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2010 Luca Barbieri
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef U_LINKAGE_H_
-#define U_LINKAGE_H_
-
-#include "pipe/p_compiler.h"
-#include "pipe/p_shader_tokens.h"
-
-struct util_semantic_set
-{
-   unsigned long masks[256 / 8 / sizeof(unsigned long)];
-};
-
-static INLINE boolean
-util_semantic_set_contains(struct util_semantic_set *set, unsigned char value)
-{
-   return !!(set->masks[value / (sizeof(long) * 8)] & (1 << (value / (sizeof(long) * 8))));
-}
-
-unsigned util_semantic_set_from_program_file(struct util_semantic_set *set, const struct tgsi_token *tokens, enum tgsi_file_type file);
-
-/* efficient_slots is the number of slots such that hardware performance is
- * the same for using that amount, with holes, or less slots but with less
- * holes.
- *
- * num_slots is the size of the layout array and hardware limit instead.
- *
- * efficient_slots == 0 or efficient_slots == num_slots are typical settings.
- */
-void util_semantic_layout_from_set(unsigned char *layout, const struct util_semantic_set *set, unsigned efficient_slots, unsigned num_slots);
-
-static INLINE void
-util_semantic_table_from_layout(unsigned char *table, size_t table_size, unsigned char *layout,
-                                unsigned char first_slot_value, unsigned char num_slots)
-{
-   unsigned char i;
-   memset(table, 0xff, table_size);
-
-   for(i = 0; i < num_slots; ++i)
-      table[layout[i]] = first_slot_value + i;
-}
-
-#endif /* U_LINKAGE_H_ */