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90 Commits

Author SHA1 Message Date
Damien George 18e6358480 py/emit: Combine setup with/except/finally into one emit function. 
This patch reduces code size by:

   bare-arm:   -16
minimal x86:  -156
   unix x64:  -288
unix nanbox:  -184
      stm32:   -48
     cc3200:   -16
    esp8266:   -96
      esp32:   -16

The last 10 patches combined reduce code size by:

   bare-arm:  -164
minimal x86: -1260
   unix x64: -3416
unix nanbox: -1616
      stm32:  -676
     cc3200:  -232
    esp8266: -1144
      esp32:  -268
 2018-05-23 00:35:16 +10:00
Damien George 436e0d4c54 py/emit: Merge build set/slice into existing build emit function. 
Reduces code size by:

   bare-arm:    +0
minimal x86:    +0
   unix x64:  -368
unix nanbox:  -248
      stm32:  -128
     cc3200:   -48
    esp8266:  -184
      esp32:   -40
 2018-05-23 00:23:36 +10:00
Damien George d97906ca9a py/emit: Combine import from/name/star into one emit function. 
Change in code size is:

   bare-arm:    +4
minimal x86:   -88
   unix x64:  -456
unix nanbox:   -88
      stm32:   -44
     cc3200:    +0
    esp8266:  -104
      esp32:    +8
 2018-05-23 00:23:08 +10:00
Damien George 8a513da5a5 py/emit: Combine break_loop and continue_loop into one emit function. 
Reduces code size by:

   bare-arm:    +0
minimal x86:    +0
   unix x64:   -80
unix nanbox:    +0
      stm32:   -12
     cc3200:    +0
    esp8266:   -28
      esp32:    +0
 2018-05-23 00:23:04 +10:00
Damien George 6211d979ee py/emit: Combine load/store/delete attr into one emit function. 
Reduces code size by:

   bare-arm:   -20
minimal x86:  -140
   unix x64:  -408
unix nanbox:  -140
      stm32:   -68
     cc3200:   -16
    esp8266:   -80
      esp32:   -32
 2018-05-23 00:22:59 +10:00
Damien George a4941a8ba4 py/emit: Combine load/store/delete subscr into one emit function. 
Reduces code size by:

   bare-arm:    -8
minimal x86:  -104
   unix x64:  -312
unix nanbox:  -120
      stm32:   -60
     cc3200:   -16
    esp8266:   -92
      esp32:   -24
 2018-05-23 00:22:55 +10:00
Damien George d298013939 py/emit: Combine name and global into one func for load/store/delete. 
Reduces code size by:

   bare-arm:   -56
minimal x86:  -300
   unix x64:  -576
unix nanbox:  -300
      stm32:  -164
     cc3200:   -56
    esp8266:  -236
      esp32:   -76
 2018-05-23 00:22:47 +10:00
Damien George 26b5754092 py/emit: Combine build tuple/list/map emit funcs into one. 
Reduces code size by:

   bare-arm:   -24
minimal x86:  -192
   unix x64:  -288
unix nanbox:  -184
      stm32:   -72
     cc3200:   -16
    esp8266:  -148
      esp32:   -32
 2018-05-23 00:22:44 +10:00
Damien George e686c94052 py/emit: Combine yield value and yield-from emit funcs into one. 
Reduces code size by:

   bare-arm:   -24
minimal x86:   -72
   unix x64:  -200
unix nanbox:   -72
      stm32:   -52
     cc3200:   -32
    esp8266:   -84
      esp32:   -24
 2018-05-23 00:22:35 +10:00
Damien George 0a25fff956 py/emit: Combine fast and deref into one function for load/store/delete. 
Reduces code size by:

   bare-arm:   -16
minimal x86:  -208
   unix x64:  -408
unix nanbox:  -248
      stm32:   -12
     cc3200:   -24
    esp8266:   -96
      esp32:   -44
 2018-05-23 00:22:20 +10:00
Damien George a3dc1b1957 all: Remove inclusion of internal py header files. 
Header files that are considered internal to the py core and should not
normally be included directly are:
    py/nlr.h - internal nlr configuration and declarations
    py/bc0.h - contains bytecode macro definitions
    py/runtime0.h - contains basic runtime enums

Instead, the top-level header files to include are one of:
    py/obj.h - includes runtime0.h and defines everything to use the
        mp_obj_t type
    py/runtime.h - includes mpstate.h and hence nlr.h, obj.h, runtime0.h,
        and defines everything to use the general runtime support functions

Additional, specific headers (eg py/objlist.h) can be included if needed.
 2017-10-04 12:37:50 +11:00
Alexander Steffen 55f33240f3 all: Use the name MicroPython consistently in comments 
There were several different spellings of MicroPython present in comments,
when there should be only one.
 2017-07-31 18:35:40 +10:00
Alexander Steffen 299bc62586 all: Unify header guard usage. 
The code conventions suggest using header guards, but do not define how
those should look like and instead point to existing files. However, not
all existing files follow the same scheme, sometimes omitting header guards
altogether, sometimes using non-standard names, making it easy to
accidentally pick a "wrong" example.

This commit ensures that all header files of the MicroPython project (that
were not simply copied from somewhere else) follow the same pattern, that
was already present in the majority of files, especially in the py folder.

The rules are as follows.

Naming convention:
* start with the words MICROPY_INCLUDED
* contain the full path to the file
* replace special characters with _

In addition, there are no empty lines before #ifndef, between #ifndef and
one empty line before #endif. #endif is followed by a comment containing
the name of the guard macro.

py/grammar.h cannot use header guards by design, since it has to be
included multiple times in a single C file. Several other files also do not
need header guards as they are only used internally and guaranteed to be
included only once:
* MICROPY_MPHALPORT_H
* mpconfigboard.h
* mpconfigport.h
* mpthreadport.h
* pin_defs_*.h
* qstrdefs*.h
 2017-07-18 11:57:39 +10:00
Damien George dd11af209d py: Add LOAD_SUPER_METHOD bytecode to allow heap-free super meth calls. 
This patch allows the following code to run without allocating on the heap:

    super().foo(...)

Before this patch such a call would allocate a super object on the heap and
then load the foo method and call it right away.  The super object is only
needed to perform the lookup of the method and not needed after that.  This
patch makes an optimisation to allocate the super object on the C stack and
discard it right after use.

Changes in code size due to this patch are:

   bare-arm: +128
    minimal: +232
   unix x64: +416
unix nanbox: +364
     stmhal: +184
    esp8266: +340
     cc3200: +128
 2017-04-22 23:39:20 +10:00
Damien George 30b42dd72d py: Remove unused "use_stack" argument from for_iter_end emit function. 2017-02-16 18:38:06 +11:00
Damien George f4df3aaa72 py: Allow bytecode/native to put iter_buf on stack for simple for loops. 
So that the "for x in it: ..." statement can now work without using the
heap (so long as the iterator argument fits in an iter_buf structure).
 2017-02-16 18:38:06 +11:00
Damien George e920bab976 py/emitinline: Move common code for end of final pass to compiler. 
This patch moves some common code from the individual inline assemblers to
the compiler, the code that calls the emit-glue to assign the machine code
to the functions scope.
 2016-12-09 21:23:17 +11:00
Damien George dd53b12193 py/emitinline: Move inline-asm align and data methods to compiler. 
These are generic methods that don't depend on the architecture and so
can be handled directly by the compiler.
 2016-12-09 20:54:54 +11:00
Damien George f76b1bfa9f py: Add inline Xtensa assembler. 
This patch adds the MICROPY_EMIT_INLINE_XTENSA option, which, when
enabled, allows the @micropython.asm_xtensa decorator to be used.

The following opcodes are currently supported (ax is a register, a0-a15):

    ret_n()
    callx0(ax)
    j(label)
    jx(ax)

    beqz(ax, label)
    bnez(ax, label)
    mov(ax, ay)
    movi(ax, imm) # imm can be full 32-bit, uses l32r if needed

    and_(ax, ay, az)
    or_(ax, ay, az)
    xor(ax, ay, az)
    add(ax, ay, az)
    sub(ax, ay, az)
    mull(ax, ay, az)

    l8ui(ax, ay, imm)
    l16ui(ax, ay, imm)
    l32i(ax, ay, imm)
    s8i(ax, ay, imm)
    s16i(ax, ay, imm)
    s32i(ax, ay, imm)
    l16si(ax, ay, imm)
    addi(ax, ay, imm)

    ball(ax, ay, label)
    bany(ax, ay, label)
    bbc(ax, ay, label)
    bbs(ax, ay, label)
    beq(ax, ay, label)
    bge(ax, ay, label)
    bgeu(ax, ay, label)
    blt(ax, ay, label)
    bnall(ax, ay, label)
    bne(ax, ay, label)
    bnone(ax, ay, label)

Upon entry to the assembly function the registers a0, a12, a13, a14 are
pushed to the stack and the stack pointer (a1) decreased by 16.  Upon
exit, these registers and the stack pointer are restored, and ret.n is
executed to return to the caller (caller address is in a0).

Note that the ABI for the Xtensa emitters is non-windowing.
 2016-12-09 17:07:38 +11:00
Damien George 8e5aced1fd py: Integrate Xtensa assembler into native emitter. 
The config option MICROPY_EMIT_XTENSA can now be enabled to target the
Xtensa architecture with @micropython.native and @micropython.viper
decorators.
 2016-12-09 16:51:49 +11:00
Damien George c2713592bc py/emit.h: Remove long-obsolete declarations for cpython emitter. 2016-12-09 13:28:25 +11:00
Damien George a5624bf381 py: Combine 3 comprehension emit functions (list/dict/set) into 1. 
The 3 kinds of comprehensions are similar enough that merging their emit
functions reduces code size.  Decreases in code size in bytes are:
bare-arm:24, minimal:96, unix(NDEBUG,x86-64):328, stmhal:80, esp8266:76.
 2016-09-19 12:23:31 +10:00
Damien George ce8b4e8749 py: Combine continuous block of emit steps into with_cleanup emit call. 
Because different emitters need to handle with-cleanup in different ways.
 2016-04-07 08:50:38 +01:00
Damien George 8f54c08691 py/inlineasm: Add ability to specify return type of asm_thumb funcs. 
Supported return types are: object, bool, int, uint.

For example:

@micropython.asm_thumb
def foo(r0, r1) -> uint:
    add(r0, r0, r1)
 2016-01-27 14:27:10 +00:00
Damien George 5d66b427e2 py/emit: Change type of arg of load_const_obj from void* to mp_obj_t. 2015-11-29 14:25:04 +00:00