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2018-09-28Rewrite BSM optimizations in the new SSA-based intermediate formatJohn Högberg
This commit improves the bit-syntax match optimization pass, leveraging the new SSA intermediate format to perform much more aggressive optimizations. Some highlights: * Watch contexts can be reused even after being passed to a function or being used in a try block. * Sub-binaries are no longer eagerly extracted, making it far easier to keep "happy paths" free from binary creation. * Trivial wrapper functions no longer disable context reuse.
2018-09-24Support using match contexts from Y registersJohn Högberg
The upcoming beam_ssa_bsm pass allows match contexts to be used across function calls that take said context as an argument, which means it's fairly common for them to end up in Y registers.
2018-06-18Update copyright yearHenrik Nord
2018-02-12Make sure that the overwrite in bs_context_to_binary is safeJohn Högberg
2018-01-19Optimize matching of an 'utf8' segment in the binary syntaxBjörn Gustavsson
Matching out an 8-bit integer is faster than matching out an utf8-encoded code point, even if the value of the code point is less than 128. The reason is that matching out an 8-bit integer is specially optimized to avoid a function call. Do a similar optimization for matching out an utf8 segment.
2017-10-01Move out variables from the head of combined instructionsBjörn Gustavsson
Move out from the head the variables that are only used in the excute phase.
2017-08-11Break out most instructions from beam_emu.cBjörn Gustavsson
2017-08-08Simplify specifying implementation of instructionsBjörn Gustavsson
Eliminate the need to write pre-processor macros for each instruction. Instead allow the implementation of instruction to be written in C directly in the .tab files. Rewrite all existing macros in this way and remove the %macro directive.