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circuitpython/tests/basics/fun_largestate.py

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py: Reluctantly add an extra pass to bytecode compiler. Bytecode also needs a pass to compute the stack size. This is because the state size of the bytecode function is encoded as a variable uint, so we must know the value of this uint before we encode it (otherwise the size of the generated code changes from one pass to the next). Having an entire pass for this seems wasteful (in time). Alternative is to allocate fixed space for the state size (would need 3-4 bytes to be general, when 1 byte is usually sufficient) which uses a bit of extra RAM per bytecode function, and makes the code less elegant in places where this uint is encoded/decoded. So, for now, opt for an extra pass.
2015-01-13 19:20:28 -05:00
# test large function (stack) state
tests: Add some tests to improve coverage.
2015-01-29 09:56:09 -05:00
# this function creates 127 locals
py: Reluctantly add an extra pass to bytecode compiler. Bytecode also needs a pass to compute the stack size. This is because the state size of the bytecode function is encoded as a variable uint, so we must know the value of this uint before we encode it (otherwise the size of the generated code changes from one pass to the next). Having an entire pass for this seems wasteful (in time). Alternative is to allocate fixed space for the state size (would need 3-4 bytes to be general, when 1 byte is usually sufficient) which uses a bit of extra RAM per bytecode function, and makes the code less elegant in places where this uint is encoded/decoded. So, for now, opt for an extra pass.
2015-01-13 19:20:28 -05:00
def f():
x0 = 1
x1 = 1
x2 = 1
x3 = 1
x4 = 1
x5 = 1
x6 = 1
x7 = 1
x8 = 1
x9 = 1
x10 = 1
x11 = 1
x12 = 1
x13 = 1
x14 = 1
x15 = 1
x16 = 1
x17 = 1
x18 = 1
x19 = 1
x20 = 1
x21 = 1
x22 = 1
x23 = 1
x24 = 1
x25 = 1
x26 = 1
x27 = 1
x28 = 1
x29 = 1
x30 = 1
x31 = 1
x32 = 1
x33 = 1
x34 = 1
x35 = 1
x36 = 1
x37 = 1
x38 = 1
x39 = 1
x40 = 1
x41 = 1
x42 = 1
x43 = 1
x44 = 1
x45 = 1
x46 = 1
x47 = 1
x48 = 1
x49 = 1
x50 = 1
x51 = 1
x52 = 1
x53 = 1
x54 = 1
x55 = 1
x56 = 1
x57 = 1
x58 = 1
x59 = 1
x60 = 1
x61 = 1
x62 = 1
x63 = 1
x64 = 1
x65 = 1
x66 = 1
x67 = 1
x68 = 1
x69 = 1
x70 = 1
x71 = 1
x72 = 1
x73 = 1
x74 = 1
x75 = 1
x76 = 1
x77 = 1
x78 = 1
x79 = 1
x80 = 1
x81 = 1
x82 = 1
x83 = 1
x84 = 1
x85 = 1
x86 = 1
x87 = 1
x88 = 1
x89 = 1
x90 = 1
x91 = 1
x92 = 1
x93 = 1
x94 = 1
x95 = 1
x96 = 1
x97 = 1
x98 = 1
x99 = 1
x100 = 1
x101 = 1
x102 = 1
x103 = 1
x104 = 1
x105 = 1
x106 = 1
x107 = 1
x108 = 1
x109 = 1
x110 = 1
x111 = 1
x112 = 1
x113 = 1
x114 = 1
x115 = 1
x116 = 1
x117 = 1
x118 = 1
x119 = 1
x120 = 1
x121 = 1
x122 = 1
x123 = 1
x124 = 1
x125 = 1
x126 = 1
tests: Add some tests to improve coverage. Used gcov to find some parts of vm.c, runtime.c, obj.c that were not covered by any tests. Still need to use gcov more thoroughly.
2015-01-28 19:44:11 -05:00
f()
tests: Add some tests to improve coverage.
2015-01-29 09:56:09 -05:00
# this function pushes 128 elements onto the function stack
py: Reluctantly add an extra pass to bytecode compiler. Bytecode also needs a pass to compute the stack size. This is because the state size of the bytecode function is encoded as a variable uint, so we must know the value of this uint before we encode it (otherwise the size of the generated code changes from one pass to the next). Having an entire pass for this seems wasteful (in time). Alternative is to allocate fixed space for the state size (would need 3-4 bytes to be general, when 1 byte is usually sufficient) which uses a bit of extra RAM per bytecode function, and makes the code less elegant in places where this uint is encoded/decoded. So, for now, opt for an extra pass.
2015-01-13 19:20:28 -05:00
def g():
x = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,]
tests: Add some tests to improve coverage. Used gcov to find some parts of vm.c, runtime.c, obj.c that were not covered by any tests. Still need to use gcov more thoroughly.
2015-01-28 19:44:11 -05:00
g()
tests: Add some tests to improve coverage.
2015-01-29 09:56:09 -05:00
# this function exercises load_fast_n and store_fast_n opcodes
def h():
x0 = 1
x1 = x0
x2 = x1
x3 = x2
x4 = x3
x5 = x4
x6 = x5
x7 = x6
x8 = x7
x9 = x8
x10 = x9
x11 = x10
x12 = x11
x13 = x12
x14 = x13
x15 = x14
x16 = x15
x17 = x16
h()