1 files changed, 0 insertions, 229 deletions

diff --git a/libraries/luajit-2.0/src/buildvm_fold.c b/libraries/luajit-2.0/src/buildvm_fold.c
deleted file mode 100644
index b43d2c4..0000000
--- a/libraries/luajit-2.0/src/buildvm_fold.c
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
-** LuaJIT VM builder: IR folding hash table generator.
-** Copyright (C) 2005-2011 Mike Pall. See Copyright Notice in luajit.h
-*/
-
-#include "buildvm.h"
-#include "lj_obj.h"
-#include "lj_ir.h"
-
-/* Context for the folding hash table generator. */
-static int lineno;
-static int funcidx;
-static uint32_t foldkeys[BUILD_MAX_FOLD];
-static uint32_t nkeys;
-
-/* Try to fill the hash table with keys using the hash parameters. */
-static int tryhash(uint32_t *htab, uint32_t sz, uint32_t r, int dorol)
-{
-  uint32_t i;
-  if (dorol && ((r & 31) == 0 || (r>>5) == 0))
-    return 0;  /* Avoid zero rotates. */
-  memset(htab, 0xff, (sz+1)*sizeof(uint32_t));
-  for (i = 0; i < nkeys; i++) {
-    uint32_t key = foldkeys[i];
-    uint32_t k = key & 0xffffff;
-    uint32_t h = (dorol ? lj_rol(lj_rol(k, r>>5) - k, r&31) :
-                          (((k << (r>>5)) - k) << (r&31))) % sz;
-    if (htab[h] != 0xffffffff) {  /* Collision on primary slot. */
-      if (htab[h+1] != 0xffffffff) {  /* Collision on secondary slot. */
-        /* Try to move the colliding key, if possible. */
-        if (h < sz-1 && htab[h+2] == 0xffffffff) {
-          uint32_t k2 = htab[h+1] & 0xffffff;
-          uint32_t h2 = (dorol ? lj_rol(lj_rol(k2, r>>5) - k2, r&31) :
-                                 (((k2 << (r>>5)) - k2) << (r&31))) % sz;
-          if (h2 != h+1) return 0;  /* Cannot resolve collision. */
-          htab[h+2] = htab[h+1];  /* Move colliding key to secondary slot. */
-        } else {
-          return 0;  /* Collision. */
-        }
-      }
-      htab[h+1] = key;
-    } else {
-      htab[h] = key;
-    }
-  }
-  return 1;  /* Success, all keys could be stored. */
-}
-
-/* Print the generated hash table. */
-static void printhash(BuildCtx *ctx, uint32_t *htab, uint32_t sz)
-{
-  uint32_t i;
-  fprintf(ctx->fp, "static const uint32_t fold_hash[%d] = {\n0x%08x",
-          sz+1, htab[0]);
-  for (i = 1; i < sz+1; i++)
-    fprintf(ctx->fp, ",\n0x%08x", htab[i]);
-  fprintf(ctx->fp, "\n};\n\n");
-}
-
-/* Exhaustive search for the shortest semi-perfect hash table. */
-static void makehash(BuildCtx *ctx)
-{
-  uint32_t htab[BUILD_MAX_FOLD*2+1];
-  uint32_t sz, r;
-  /* Search for the smallest hash table with an odd size. */
-  for (sz = (nkeys|1); sz < BUILD_MAX_FOLD*2; sz += 2) {
-    /* First try all shift hash combinations. */
-    for (r = 0; r < 32*32; r++) {
-      if (tryhash(htab, sz, r, 0)) {
-        printhash(ctx, htab, sz);
-        fprintf(ctx->fp,
-                "#define fold_hashkey(k)\t(((((k)<<%u)-(k))<<%u)%%%u)\n\n",
-                r>>5, r&31, sz);
-        return;
-      }
-    }
-    /* Then try all rotate hash combinations. */
-    for (r = 0; r < 32*32; r++) {
-      if (tryhash(htab, sz, r, 1)) {
-        printhash(ctx, htab, sz);
-        fprintf(ctx->fp,
-          "#define fold_hashkey(k)\t(lj_rol(lj_rol((k),%u)-(k),%u)%%%u)\n\n",
-                r>>5, r&31, sz);
-        return;
-      }
-    }
-  }
-  fprintf(stderr, "Error: search for perfect hash failed\n");
-  exit(1);
-}
-
-/* Parse one token of a fold rule. */
-static uint32_t nexttoken(char **pp, int allowlit, int allowany)
-{
-  char *p = *pp;
-  if (p) {
-    uint32_t i;
-    char *q = strchr(p, ' ');
-    if (q) *q++ = '\0';
-    *pp = q;
-    if (allowlit && !strncmp(p, "IRFPM_", 6)) {
-      for (i = 0; irfpm_names[i]; i++)
-        if (!strcmp(irfpm_names[i], p+6))
-          return i;
-    } else if (allowlit && !strncmp(p, "IRFL_", 5)) {
-      for (i = 0; irfield_names[i]; i++)
-        if (!strcmp(irfield_names[i], p+5))
-          return i;
-    } else if (allowlit && !strncmp(p, "IRCALL_", 7)) {
-      for (i = 0; ircall_names[i]; i++)
-        if (!strcmp(ircall_names[i], p+7))
-          return i;
-    } else if (allowlit && !strncmp(p, "IRCONV_", 7)) {
-      for (i = 0; irt_names[i]; i++) {
-        const char *r = strchr(p+7, '_');
-        if (r && !strncmp(irt_names[i], p+7, r-(p+7))) {
-          uint32_t j;
-          for (j = 0; irt_names[j]; j++)
-            if (!strcmp(irt_names[j], r+1))
-              return (i << 5) + j;
-        }
-      }
-    } else if (allowlit && *p >= '0' && *p <= '9') {
-      for (i = 0; *p >= '0' && *p <= '9'; p++)
-        i = i*10 + (*p - '0');
-      if (*p == '\0')
-        return i;
-    } else if (allowany && !strcmp("any", p)) {
-      return allowany;
-    } else {
-      for (i = 0; ir_names[i]; i++)
-        if (!strcmp(ir_names[i], p))
-          return i;
-    }
-    fprintf(stderr, "Error: bad fold definition token \"%s\" at line %d\n", p, lineno);
-    exit(1);
-  }
-  return 0;
-}
-
-/* Parse a fold rule. */
-static void foldrule(char *p)
-{
-  uint32_t op = nexttoken(&p, 0, 0);
-  uint32_t left = nexttoken(&p, 0, 0x7f);
-  uint32_t right = nexttoken(&p, 1, 0x3ff);
-  uint32_t key = (funcidx << 24) | (op << 17) | (left << 10) | right;
-  uint32_t i;
-  if (nkeys >= BUILD_MAX_FOLD) {
-    fprintf(stderr, "Error: too many fold rules, increase BUILD_MAX_FOLD.\n");
-    exit(1);
-  }
-  /* Simple insertion sort to detect duplicates. */
-  for (i = nkeys; i > 0; i--) {
-    if ((foldkeys[i-1]&0xffffff) < (key & 0xffffff))
-      break;
-    if ((foldkeys[i-1]&0xffffff) == (key & 0xffffff)) {
-      fprintf(stderr, "Error: duplicate fold definition at line %d\n", lineno);
-      exit(1);
-    }
-    foldkeys[i] = foldkeys[i-1];
-  }
-  foldkeys[i] = key;
-  nkeys++;
-}
-
-/* Emit C source code for IR folding hash table. */
-void emit_fold(BuildCtx *ctx)
-{
-  char buf[256];  /* We don't care about analyzing lines longer than that. */
-  const char *fname = ctx->args[0];
-  FILE *fp;
-
-  if (fname == NULL) {
-    fprintf(stderr, "Error: missing input filename\n");
-    exit(1);
-  }
-
-  if (fname[0] == '-' && fname[1] == '\0') {
-    fp = stdin;
-  } else {
-    fp = fopen(fname, "r");
-    if (!fp) {
-      fprintf(stderr, "Error: cannot open input file '%s': %s\n",
-              fname, strerror(errno));
-      exit(1);
-    }
-  }
-
-  fprintf(ctx->fp, "/* This is a generated file. DO NOT EDIT! */\n\n");
-  fprintf(ctx->fp, "static const FoldFunc fold_func[] = {\n");
-
-  lineno = 0;
-  funcidx = 0;
-  nkeys = 0;
-  while (fgets(buf, sizeof(buf), fp) != NULL) {
-    lineno++;
-    /* The prefix must be at the start of a line, otherwise it's ignored. */
-    if (!strncmp(buf, FOLDDEF_PREFIX, sizeof(FOLDDEF_PREFIX)-1)) {
-      char *p = buf+sizeof(FOLDDEF_PREFIX)-1;
-      char *q = strchr(p, ')');
-      if (p[0] == '(' && q) {
-        p++;
-        *q = '\0';
-        foldrule(p);
-      } else if ((p[0] == 'F' || p[0] == 'X') && p[1] == '(' && q) {
-        p += 2;
-        *q = '\0';
-        if (funcidx)
-          fprintf(ctx->fp, ",\n");
-        if (p[-2] == 'X')
-          fprintf(ctx->fp, "  %s", p);
-        else
-          fprintf(ctx->fp, "  fold_%s", p);
-        funcidx++;
-      } else {
-        buf[strlen(buf)-1] = '\0';
-        fprintf(stderr, "Error: unknown fold definition tag %s%s at line %d\n",
-                FOLDDEF_PREFIX, p, lineno);
-        exit(1);
-      }
-    }
-  }
-  fclose(fp);
-  fprintf(ctx->fp, "\n};\n\n");
-
-  makehash(ctx);
-}
-