unix-cpy: Remove unix-cpy. It's no longer needed.

unix-cpy was originally written to get semantic equivalent with CPython
without writing functional tests.  When writing the initial
implementation of uPy it was a long way between lexer and functional
tests, so the half-way test was to make sure that the bytecode was
correct.  The idea was that if the uPy bytecode matched CPython 1-1 then
uPy would be proper Python if the bytecodes acted correctly.  And having
matching bytecode meant that it was less likely to miss some deep
subtlety in the Python semantics that would require an architectural
change later on.

But that is all history and it no longer makes sense to retain the
ability to output CPython bytecode, because:

1. It outputs CPython 3.3 compatible bytecode.  CPython's bytecode
changes from version to version, and seems to have changed quite a bit
in 3.5.  There's no point in changing the bytecode output to match
CPython anymore.

2. uPy and CPy do different optimisations to the bytecode which makes it
harder to match.

3. The bytecode tests are not run.  They were never part of Travis and
are not run locally anymore.

4. The EMIT_CPYTHON option needs a lot of extra source code which adds
heaps of noise, especially in compile.c.

5. Now that there is an extensive test suite (which tests functionality)
there is no need to match the bytecode.  Some very subtle behaviour is
tested with the test suite and passing these tests is a much better
way to stay Python-language compliant, rather than trying to match
CPy bytecode.

1 files changed, 0 insertions, 185 deletions

diff --git a/tests/bytecode/pylib-tests/opcode.py b/tests/bytecode/pylib-tests/opcode.py
deleted file mode 100644
index d81b6bc3c..000000000
--- a/tests/bytecode/pylib-tests/opcode.py
+++ /dev/null
@@ -1,185 +0,0 @@
-
-"""
-opcode module - potentially shared between dis and other modules which
-operate on bytecodes (e.g. peephole optimizers).
-"""
-
-__all__ = ["cmp_op", "hasconst", "hasname", "hasjrel", "hasjabs",
-           "haslocal", "hascompare", "hasfree", "opname", "opmap",
-           "HAVE_ARGUMENT", "EXTENDED_ARG", "hasnargs"]
-
-#cmp_op = ('<', '<=', '==', '!=', '>', '>=', 'in', 'not in', 'is',
-#        'is not', 'exception match', 'BAD')
-
-hasconst = []
-hasname = []
-hasjrel = []
-hasjabs = []
-haslocal = []
-hascompare = []
-hasfree = []
-hasnargs = []
-
-opmap = {}
-opname = [''] * 256
-for op in range(256): opname[op] = '<%r>' % (op,)
-del op
-
-def def_op(name, op):
-    opname[op] = name
-    opmap[name] = op
-
-def name_op(name, op):
-    def_op(name, op)
-    hasname.append(op)
-
-def jrel_op(name, op):
-    def_op(name, op)
-    hasjrel.append(op)
-
-def jabs_op(name, op):
-    def_op(name, op)
-    hasjabs.append(op)
-
-# Instruction opcodes for compiled code
-# Blank lines correspond to available opcodes
-
-def_op('POP_TOP', 1)
-def_op('ROT_TWO', 2)
-def_op('ROT_THREE', 3)
-def_op('DUP_TOP', 4)
-def_op('DUP_TOP_TWO', 5)
-
-def_op('NOP', 9)
-def_op('UNARY_POSITIVE', 10)
-def_op('UNARY_NEGATIVE', 11)
-def_op('UNARY_NOT', 12)
-
-def_op('UNARY_INVERT', 15)
-
-def_op('BINARY_POWER', 19)
-def_op('BINARY_MULTIPLY', 20)
-
-def_op('BINARY_MODULO', 22)
-def_op('BINARY_ADD', 23)
-def_op('BINARY_SUBTRACT', 24)
-def_op('BINARY_SUBSCR', 25)
-def_op('BINARY_FLOOR_DIVIDE', 26)
-def_op('BINARY_TRUE_DIVIDE', 27)
-def_op('INPLACE_FLOOR_DIVIDE', 28)
-def_op('INPLACE_TRUE_DIVIDE', 29)
-
-def_op('STORE_MAP', 54)
-def_op('INPLACE_ADD', 55)
-def_op('INPLACE_SUBTRACT', 56)
-def_op('INPLACE_MULTIPLY', 57)
-
-def_op('INPLACE_MODULO', 59)
-def_op('STORE_SUBSCR', 60)
-def_op('DELETE_SUBSCR', 61)
-def_op('BINARY_LSHIFT', 62)
-def_op('BINARY_RSHIFT', 63)
-def_op('BINARY_AND', 64)
-def_op('BINARY_XOR', 65)
-def_op('BINARY_OR', 66)
-def_op('INPLACE_POWER', 67)
-def_op('GET_ITER', 68)
-def_op('STORE_LOCALS', 69)
-
-def_op('PRINT_EXPR', 70)
-def_op('LOAD_BUILD_CLASS', 71)
-def_op('YIELD_FROM', 72)
-
-def_op('INPLACE_LSHIFT', 75)
-def_op('INPLACE_RSHIFT', 76)
-def_op('INPLACE_AND', 77)
-def_op('INPLACE_XOR', 78)
-def_op('INPLACE_OR', 79)
-def_op('BREAK_LOOP', 80)
-def_op('WITH_CLEANUP', 81)
-
-def_op('RETURN_VALUE', 83)
-def_op('IMPORT_STAR', 84)
-
-def_op('YIELD_VALUE', 86)
-def_op('POP_BLOCK', 87)
-def_op('END_FINALLY', 88)
-def_op('POP_EXCEPT', 89)
-
-HAVE_ARGUMENT = 90              # Opcodes from here have an argument:
-
-name_op('STORE_NAME', 90)       # Index in name list
-name_op('DELETE_NAME', 91)      # ""
-def_op('UNPACK_SEQUENCE', 92)   # Number of tuple items
-jrel_op('FOR_ITER', 93)
-def_op('UNPACK_EX', 94)
-name_op('STORE_ATTR', 95)       # Index in name list
-name_op('DELETE_ATTR', 96)      # ""
-name_op('STORE_GLOBAL', 97)     # ""
-name_op('DELETE_GLOBAL', 98)    # ""
-def_op('LOAD_CONST', 100)       # Index in const list
-hasconst.append(100)
-name_op('LOAD_NAME', 101)       # Index in name list
-def_op('BUILD_TUPLE', 102)      # Number of tuple items
-def_op('BUILD_LIST', 103)       # Number of list items
-def_op('BUILD_SET', 104)        # Number of set items
-def_op('BUILD_MAP', 105)        # Number of dict entries (upto 255)
-name_op('LOAD_ATTR', 106)       # Index in name list
-def_op('COMPARE_OP', 107)       # Comparison operator
-hascompare.append(107)
-name_op('IMPORT_NAME', 108)     # Index in name list
-name_op('IMPORT_FROM', 109)     # Index in name list
-
-jrel_op('JUMP_FORWARD', 110)    # Number of bytes to skip
-jabs_op('JUMP_IF_FALSE_OR_POP', 111) # Target byte offset from beginning of code
-jabs_op('JUMP_IF_TRUE_OR_POP', 112)  # ""
-jabs_op('JUMP_ABSOLUTE', 113)        # ""
-jabs_op('POP_JUMP_IF_FALSE', 114)    # ""
-jabs_op('POP_JUMP_IF_TRUE', 115)     # ""
-
-name_op('LOAD_GLOBAL', 116)     # Index in name list
-
-jabs_op('CONTINUE_LOOP', 119)   # Target address
-jrel_op('SETUP_LOOP', 120)      # Distance to target address
-jrel_op('SETUP_EXCEPT', 121)    # ""
-jrel_op('SETUP_FINALLY', 122)   # ""
-
-def_op('LOAD_FAST', 124)        # Local variable number
-haslocal.append(124)
-def_op('STORE_FAST', 125)       # Local variable number
-haslocal.append(125)
-def_op('DELETE_FAST', 126)      # Local variable number
-haslocal.append(126)
-
-def_op('RAISE_VARARGS', 130)    # Number of raise arguments (1, 2, or 3)
-def_op('CALL_FUNCTION', 131)    # #args + (#kwargs << 8)
-hasnargs.append(131)
-def_op('MAKE_FUNCTION', 132)    # Number of args with default values
-def_op('BUILD_SLICE', 133)      # Number of items
-def_op('MAKE_CLOSURE', 134)
-def_op('LOAD_CLOSURE', 135)
-hasfree.append(135)
-def_op('LOAD_DEREF', 136)
-hasfree.append(136)
-def_op('STORE_DEREF', 137)
-hasfree.append(137)
-def_op('DELETE_DEREF', 138)
-hasfree.append(138)
-
-def_op('CALL_FUNCTION_VAR', 140)     # #args + (#kwargs << 8)
-hasnargs.append(140)
-def_op('CALL_FUNCTION_KW', 141)      # #args + (#kwargs << 8)
-hasnargs.append(141)
-def_op('CALL_FUNCTION_VAR_KW', 142)  # #args + (#kwargs << 8)
-hasnargs.append(142)
-
-jrel_op('SETUP_WITH', 143)
-
-def_op('LIST_APPEND', 145)
-def_op('SET_ADD', 146)
-def_op('MAP_ADD', 147)
-
-def_op('EXTENDED_ARG', 144)
-EXTENDED_ARG = 144
-
-del def_op, name_op, jrel_op, jabs_op