suspect-devices/circuitpython/py/emitbc.c, branch v1.4.1 CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.4.1 2015-03-26T16:52:45+00:00 py, compiler: When just bytecode, make explicit calls instead of table. 2015-03-26T16:52:45+00:00 Damien George damien.p.george@gmail.com 2015-03-26T16:44:14+00:00 urn:sha1:4112590a602fa11b4d9a3df3ed5c55df56c0dc62 When just the bytecode emitter is needed there is no need to have a dynamic method table for the emitter back-end, and we can instead directly call the mp_emit_bc_XXX functions. This gives a significant reduction in code size and a very slight performance boost for the compiler. This patch saves 1160 bytes code on Thumb2 and 972 bytes on x86, when native emitters are disabled. Overall savings in code over the last 3 commits are: bare-arm: 1664 bytes. minimal: 2136 bytes. stmhal: 584 bytes (it has native emitter enabled). cc3200: 1736 bytes. py, compiler: Remove emit_pass1 code, using emit_bc to do its job. 2015-03-26T16:52:45+00:00 Damien George damien.p.george@gmail.com 2015-03-26T15:49:53+00:00 urn:sha1:a210c774f9cfbcde284f5b8a63442b4d6da1ae5b First pass for the compiler is computing the scope (eg if an identifier is local or not) and originally had an entire table of methods dedicated to this, most of which did nothing. With changes from previous commit, this set of methods can be removed and the methods from the bytecode emitter used instead, with very little modification -- this is what is done in this commit. This factoring has little to no impact on the speed of the compiler (tested by compiling 3763 Python scripts and timing it). This factoring reduces code size by about 270-300 bytes on Thumb2 archs, and 400 bytes on x86. py, compiler: Refactor load/store/delete_id logic to reduce code size. 2015-03-26T16:52:45+00:00 Damien George damien.p.george@gmail.com 2015-03-26T14:42:40+00:00 urn:sha1:542bd6b4a1ead90fde42f24d01c82580f9d048de Saves around 230 bytes on Thumb2 and 750 bytes on x86. py: Combine emit functions for jump true/false to reduce code size. 2015-02-28T15:04:06+00:00 Damien George damien.p.george@gmail.com 2015-02-28T15:04:06+00:00 urn:sha1:63f3832e813442dcfc88be65d78ce465b053a33b Saves 116 bytes for stmhal and 56 bytes for cc3200 port. py: Parse big-int/float/imag constants directly in parser. 2015-02-08T01:57:40+00:00 Damien George damien.p.george@gmail.com 2015-02-08T01:57:40+00:00 urn:sha1:7d414a1b52d193bab2c94cf56932e1eba23ba542 Previous to this patch, a big-int, float or imag constant was interned (made into a qstr) and then parsed at runtime to create an object each time it was needed. This is wasteful in RAM and not efficient. Now, these constants are parsed straight away in the parser and turned into objects. This allows constants with large numbers of digits (so addresses issue #1103) and takes us a step closer to #722. py, unix: Allow to compile with -Wunused-parameter. 2015-01-20T12:47:20+00:00 Damien George damien.p.george@gmail.com 2015-01-20T12:47:20+00:00 urn:sha1:ff8dd3f486afb0d6ff1427d8a6a8a8ed73baa660 See issue #699. py, unix: Allow to compile with -Wsign-compare. 2015-01-16T17:47:07+00:00 Damien George damien.p.george@gmail.com 2015-01-16T17:47:07+00:00 urn:sha1:963a5a3e82ded7ee75adae72ae7cb14796fa150e See issue #699. py: Remove unnecessary id_flags argument from emitter's load_fast. 2015-01-16T12:24:49+00:00 Damien George damien.p.george@gmail.com 2015-01-16T12:24:49+00:00 urn:sha1:0abb5609b01c1b59d229bde8a0b3fc1df6dce060 Saves 24 bytes in bare-arm. py: Add "default" to switches to allow better code flow analysis. 2015-01-14T21:32:42+00:00 Damien George damien.p.george@gmail.com 2015-01-14T21:32:42+00:00 urn:sha1:d2d64f00fb7f1487c1fa21a456e003a801d7e711 This helps compiler produce smaller code. Saves 124 bytes on stmhal and bare-arm. py: Add load_const_obj to emitter, add LOAD_CONST_OBJ to bytecode. 2015-01-13T15:55:54+00:00 Damien George damien.p.george@gmail.com 2015-01-13T15:55:54+00:00 urn:sha1:dab1385177558f1d27c03b59e443b6fa25a2cdc0 This allows to directly load a Python object to the Python stack. See issue #722 for background.