python-custom-interp.patch

diff -cr Python-2.7.6/Include/opcode.h Python-2.7.6-patched/Include/opcode.h
*** Python-2.7.6/Include/opcode.h	2013-11-10 08:36:39.000000000 +0100
--- Python-2.7.6-patched/Include/opcode.h	2014-05-16 16:14:42.885966107 +0200
***************
*** 149,154 ****
--- 149,155 ----
  
  #define SET_ADD         146
  #define MAP_ADD         147
+ #define LOAD_FAST_ZERO_LOAD_CONST         148
  
  
  enum cmp_op {PyCmp_LT=Py_LT, PyCmp_LE=Py_LE, PyCmp_EQ=Py_EQ, PyCmp_NE=Py_NE, PyCmp_GT=Py_GT, PyCmp_GE=Py_GE,
diff -cr Python-2.7.6/Python/ceval.c Python-2.7.6-patched/Python/ceval.c
*** Python-2.7.6/Python/ceval.c	2013-11-10 08:36:41.000000000 +0100
--- Python-2.7.6-patched/Python/ceval.c	2014-05-16 18:50:55.326163474 +0200
***************
*** 1125,1130 ****
--- 1125,1144 ----
              Py_INCREF(x);
              PUSH(x);
              goto fast_next_opcode;
+         case LOAD_FAST_ZERO_LOAD_CONST:
+             x = GETLOCAL(0);
+             if (x != NULL) {
+                 Py_INCREF(x);
+                 PUSH(x);
+                 x = GETITEM(consts, oparg);
+                 Py_INCREF(x);
+                 PUSH(x);
+                 goto fast_next_opcode;
+             }
+             format_exc_check_arg(PyExc_UnboundLocalError,
+                 UNBOUNDLOCAL_ERROR_MSG,
+                 PyTuple_GetItem(co->co_varnames, oparg));
+             break;
  
          PREDICTED_WITH_ARG(STORE_FAST);
          case STORE_FAST:
diff -cr Python-2.7.6/Python/peephole.c Python-2.7.6-patched/Python/peephole.c
*** Python-2.7.6/Python/peephole.c	2013-11-10 08:36:41.000000000 +0100
--- Python-2.7.6-patched/Python/peephole.c	2014-05-16 16:28:03.493936033 +0200
***************
*** 422,427 ****
--- 422,435 ----
                  memset(codestr+i, NOP, 6);
                  cumlc = 0;
                  break;
+             case LOAD_FAST:
+                 {
+                 j = GETARG(codestr, i);
+                 if (codestr[i+3] == LOAD_CONST && j == 0) {
+                     codestr[i+3] = LOAD_FAST_ZERO_LOAD_CONST;
+                     memset(codestr+i, NOP, 3);
+                 }
+                 } break;
  
                  /* Try to fold tuples of constants (includes a case for lists
                     which are only used for "in" and "not in" tests).