1 files changed, 42 insertions, 42 deletions

diff --git a/src/bytecode.c b/src/bytecode.c
index ed6e2b34e77..8d7240b9966 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -625,9 +625,10 @@ exec_byte_code (Lisp_Object fun, ptrdiff_t args_template,
         varref:
           {
             Lisp_Object v1 = vectorp[op], v2;
-            if (!SYMBOLP (v1)
-                || XSYMBOL (v1)->u.s.redirect != SYMBOL_PLAINVAL
-                || (v2 = SYMBOL_VAL (XSYMBOL (v1)), BASE_EQ (v2, Qunbound)))
+            if (!BARE_SYMBOL_P (v1)
+                || XBARE_SYMBOL (v1)->u.s.redirect != SYMBOL_PLAINVAL
+                || (v2 = XBARE_SYMBOL (v1)->u.s.val.value,
+                    BASE_EQ (v2, Qunbound)))
               v2 = Fsymbol_value (v1);
             PUSH (v2);
             NEXT;
@@ -699,11 +700,11 @@ exec_byte_code (Lisp_Object fun, ptrdiff_t args_template,
             Lisp_Object val = POP;
 
             /* Inline the most common case.  */
-            if (SYMBOLP (sym)
+            if (BARE_SYMBOL_P (sym)
                 && !BASE_EQ (val, Qunbound)
-                && XSYMBOL (sym)->u.s.redirect == SYMBOL_PLAINVAL
-                && !SYMBOL_TRAPPED_WRITE_P (sym))
-              SET_SYMBOL_VAL (XSYMBOL (sym), val);
+                && XBARE_SYMBOL (sym)->u.s.redirect == SYMBOL_PLAINVAL
+                && !XBARE_SYMBOL (sym)->u.s.trapped_write)
+              SET_SYMBOL_VAL (XBARE_SYMBOL (sym), val);
             else
               set_internal (sym, val, Qnil, SET_INTERNAL_SET);
           }
@@ -790,24 +791,22 @@ exec_byte_code (Lisp_Object fun, ptrdiff_t args_template,
               do_debug_on_call (Qlambda, count1);
 
             Lisp_Object original_fun = call_fun;
-            if (SYMBOLP (call_fun))
-              call_fun = XSYMBOL (call_fun)->u.s.function;
-            Lisp_Object template;
-            Lisp_Object bytecode;
-            if (COMPILEDP (call_fun)
-                /* Lexical binding only.  */
-                && (template = AREF (call_fun, COMPILED_ARGLIST),
-                    FIXNUMP (template))
-                /* No autoloads.  */
-                && (bytecode = AREF (call_fun, COMPILED_BYTECODE),
-                    !CONSP (bytecode)))
+            /* Calls to symbols-with-pos don't need to be on the fast path.  */
+            if (BARE_SYMBOL_P (call_fun))
+              call_fun = XBARE_SYMBOL (call_fun)->u.s.function;
+            if (COMPILEDP (call_fun))
               {
-                fun = call_fun;
-                bytestr = bytecode;
-                args_template = XFIXNUM (template);
-                nargs = call_nargs;
-                args = call_args;
-                goto setup_frame;
+                Lisp_Object template = AREF (call_fun, COMPILED_ARGLIST);
+                if (FIXNUMP (template))
+                  {
+                    /* Fast path for lexbound functions.  */
+                    fun = call_fun;
+                    bytestr = AREF (call_fun, COMPILED_BYTECODE),
+                    args_template = XFIXNUM (template);
+                    nargs = call_nargs;
+                    args = call_args;
+                    goto setup_frame;
+                  }
               }
 
             Lisp_Object val;
@@ -1738,28 +1737,29 @@ exec_byte_code (Lisp_Object fun, ptrdiff_t args_template,
             if (BYTE_CODE_SAFE && !HASH_TABLE_P (jmp_table))
               emacs_abort ();
             Lisp_Object v1 = POP;
-            ptrdiff_t i;
             struct Lisp_Hash_Table *h = XHASH_TABLE (jmp_table);
-
-            /* h->count is a faster approximation for HASH_TABLE_SIZE (h)
-               here. */
-            if (h->count <= 5 && !h->test->cmpfn)
-              { /* Do a linear search if there are not many cases
-                   FIXME: 5 is arbitrarily chosen.  */
-                for (i = h->count; 0 <= --i; )
-                  if (EQ (v1, HASH_KEY (h, i)))
-                    break;
+            /* Do a linear search if there are few cases and the test is `eq'.
+               (The table is assumed to be sized exactly; all entries are
+               consecutive at the beginning.)
+               FIXME: 5 is arbitrarily chosen.  */
+            if (h->count <= 5 && !h->test->cmpfn && !symbols_with_pos_enabled)
+              {
+                eassume (h->count >= 2);
+                for (ptrdiff_t i = h->count - 1; i >= 0; i--)
+                  if (BASE_EQ (v1, HASH_KEY (h, i)))
+                    {
+                      op = XFIXNUM (HASH_VALUE (h, i));
+                      goto op_branch;
+                    }
               }
             else
-              i = hash_lookup (h, v1);
-
-            if (i >= 0)
               {
-                Lisp_Object val = HASH_VALUE (h, i);
-                if (BYTE_CODE_SAFE && !FIXNUMP (val))
-                  emacs_abort ();
-                op = XFIXNUM (val);
-                goto op_branch;
+                ptrdiff_t i = hash_lookup (h, v1);
+                if (i >= 0)
+                  {
+                    op = XFIXNUM (HASH_VALUE (h, i));
+                    goto op_branch;
+                  }
               }
           }
           NEXT;