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author | David Walter Seikel | 2012-01-23 23:36:30 +1000 |
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committer | David Walter Seikel | 2012-01-23 23:36:30 +1000 |
commit | 6523585c66c04cea54df50013df8886b589847d8 (patch) | |
tree | 0b22aee7064166d88595eda260ca2d17c0773da5 /libraries/luajit-2.0/doc/changes.html | |
parent | Update the EFL to what I'm actually using, coz I'm using some stuff not yet r... (diff) | |
download | SledjHamr-6523585c66c04cea54df50013df8886b589847d8.zip SledjHamr-6523585c66c04cea54df50013df8886b589847d8.tar.gz SledjHamr-6523585c66c04cea54df50013df8886b589847d8.tar.bz2 SledjHamr-6523585c66c04cea54df50013df8886b589847d8.tar.xz |
Add luaproc and LuaJIT libraries.
Two versions of LuaJIT, the stable release, and the dev version. Try the dev version first, until ih fails badly.
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-rw-r--r-- | libraries/luajit-2.0/doc/changes.html | 640 |
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1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> | ||
2 | <html> | ||
3 | <head> | ||
4 | <title>LuaJIT Change History</title> | ||
5 | <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> | ||
6 | <meta name="Author" content="Mike Pall"> | ||
7 | <meta name="Copyright" content="Copyright (C) 2005-2011, Mike Pall"> | ||
8 | <meta name="Language" content="en"> | ||
9 | <link rel="stylesheet" type="text/css" href="bluequad.css" media="screen"> | ||
10 | <link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print"> | ||
11 | <style type="text/css"> | ||
12 | div.major { max-width: 600px; padding: 1em; margin: 1em 0 1em 0; } | ||
13 | </style> | ||
14 | </head> | ||
15 | <body> | ||
16 | <div id="site"> | ||
17 | <a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a> | ||
18 | </div> | ||
19 | <div id="head"> | ||
20 | <h1>LuaJIT Change History</h1> | ||
21 | </div> | ||
22 | <div id="nav"> | ||
23 | <ul><li> | ||
24 | <a href="luajit.html">LuaJIT</a> | ||
25 | <ul><li> | ||
26 | <a href="install.html">Installation</a> | ||
27 | </li><li> | ||
28 | <a href="running.html">Running</a> | ||
29 | </li></ul> | ||
30 | </li><li> | ||
31 | <a href="extensions.html">Extensions</a> | ||
32 | <ul><li> | ||
33 | <a href="ext_ffi.html">FFI Library</a> | ||
34 | <ul><li> | ||
35 | <a href="ext_ffi_tutorial.html">FFI Tutorial</a> | ||
36 | </li><li> | ||
37 | <a href="ext_ffi_api.html">ffi.* API</a> | ||
38 | </li><li> | ||
39 | <a href="ext_ffi_semantics.html">FFI Semantics</a> | ||
40 | </li></ul> | ||
41 | </li><li> | ||
42 | <a href="ext_jit.html">jit.* Library</a> | ||
43 | </li><li> | ||
44 | <a href="ext_c_api.html">Lua/C API</a> | ||
45 | </li></ul> | ||
46 | </li><li> | ||
47 | <a href="status.html">Status</a> | ||
48 | <ul><li> | ||
49 | <a class="current" href="changes.html">Changes</a> | ||
50 | </li></ul> | ||
51 | </li><li> | ||
52 | <a href="faq.html">FAQ</a> | ||
53 | </li><li> | ||
54 | <a href="http://luajit.org/performance.html">Performance <span class="ext">»</span></a> | ||
55 | </li><li> | ||
56 | <a href="http://luajit.org/download.html">Download <span class="ext">»</span></a> | ||
57 | </li></ul> | ||
58 | </div> | ||
59 | <div id="main"> | ||
60 | <p> | ||
61 | This is a list of changes between the released versions of LuaJIT.<br> | ||
62 | The current <span style="color: #c00000;">development version</span> is <strong>LuaJIT 2.0.0-beta9</strong>.<br> | ||
63 | The current <span style="color: #0000c0;">stable version</span> is <strong>LuaJIT 1.1.7</strong>. | ||
64 | </p> | ||
65 | <p> | ||
66 | Please check the | ||
67 | <a href="http://luajit.org/changes.html"><span class="ext">»</span> Online Change History</a> | ||
68 | to see whether newer versions are available. | ||
69 | </p> | ||
70 | |||
71 | <div class="major" style="background: #ffd0d0;"> | ||
72 | <h2 id="LuaJIT-2.0.0-beta9">LuaJIT 2.0.0-beta9 — 2011-12-14</h2> | ||
73 | <ul> | ||
74 | <li>New features: | ||
75 | <ul> | ||
76 | <li>PPC port of LuaJIT is complete. Default is the dual-number port | ||
77 | (usually faster). Single-number port selectable via <tt>src/Makefile</tt> | ||
78 | at build time.</li> | ||
79 | <li>Add FFI callback support.</li> | ||
80 | <li>Extend <tt>-b</tt> to generate <tt>.c</tt>, <tt>.h</tt> or <tt>.obj/.o</tt> | ||
81 | files with embedded bytecode.</li> | ||
82 | <li>Allow loading embedded bytecode with <tt>require()</tt>.</li> | ||
83 | <li>From Lua 5.2: Change to <tt>'\z'</tt> escape. Reject undefined escape | ||
84 | sequences.</li> | ||
85 | </ul></li> | ||
86 | <li>Correctness and completeness: | ||
87 | <ul> | ||
88 | <li>Fix OSX 10.7 build. Fix <tt>install_name</tt> and versioning on OSX.</li> | ||
89 | <li>Fix iOS build.</li> | ||
90 | <li>Install <tt>dis_arm.lua</tt>, too.</li> | ||
91 | <li>Mark installed shared library as executable.</li> | ||
92 | <li>Add debug option to <tt>msvcbuild.bat</tt> and improve error handling.</li> | ||
93 | <li>Fix data-flow analysis for iterators.</li> | ||
94 | <li>Fix forced unwinding triggered by external unwinder.</li> | ||
95 | <li>Record missing <tt>for</tt> loop slot loads (return to lower frame).</li> | ||
96 | <li>Always use ANSI variants of Windows system functions.</li> | ||
97 | <li>Fix GC barrier for multi-result table constructor (<tt>TSETM</tt>).</li> | ||
98 | <li>Fix/add various FOLD rules.</li> | ||
99 | <li>Add potential PHI for number conversions due to type instability.</li> | ||
100 | <li>Do not eliminate PHIs only referenced from other PHIs.</li> | ||
101 | <li>Correctly anchor implicit number to string conversions in Lua/C API.</li> | ||
102 | <li>Fix various stack limit checks.</li> | ||
103 | <li>x64: Use thread-safe exceptions for external unwinding (GCC platforms).</li> | ||
104 | <li>x64: Fix result type of cdata index conversions.</li> | ||
105 | <li>x64: Fix <tt>math.random()</tt> and <tt>bit.bswap()</tt> code generation.</li> | ||
106 | <li>x64: Fix <tt>lightuserdata</tt> comparisons.</li> | ||
107 | <li>x64: Always extend stack-passed arguments to pointer size.</li> | ||
108 | <li>ARM: Many fixes to code generation backend.</li> | ||
109 | <li>PPC/e500: Fix dispatch for binop metamethods.</li> | ||
110 | <li>PPC/e500: Save/restore condition registers when entering/leaving the VM.</li> | ||
111 | <li>PPC/e500: Fix write barrier in stores of strings to upvalues.</li> | ||
112 | </ul></li> | ||
113 | <li>FFI library: | ||
114 | <ul> | ||
115 | <li>Fix C comment parsing.</li> | ||
116 | <li>Fix snapshot optimization for cdata comparisons.</li> | ||
117 | <li>Fix recording of const/enum lookups in namespaces.</li> | ||
118 | <li>Fix call argument and return handling for <tt>I8/U8/I16/U16</tt> types.</li> | ||
119 | <li>Fix unfused loads of float fields.</li> | ||
120 | <li>Fix <tt>ffi.string()</tt> recording.</li> | ||
121 | <li>Save <tt>GetLastError()</tt> around <tt>ffi.load()</tt> and symbol | ||
122 | resolving, too.</li> | ||
123 | <li>Improve ld script detection in <tt>ffi.load()</tt>.</li> | ||
124 | <li>Record loads/stores to external variables in namespaces.</li> | ||
125 | <li>Compile calls to stdcall, fastcall and vararg functions.</li> | ||
126 | <li>Treat function ctypes like pointers in comparisons.</li> | ||
127 | <li>Resolve <tt>__call</tt> metamethod for pointers, too.</li> | ||
128 | <li>Record C function calls with bool return values.</li> | ||
129 | <li>Record <tt>ffi.errno()</tt>.</li> | ||
130 | <li>x86: Fix number to <tt>uint32_t</tt> conversion rounding.</li> | ||
131 | <li>x86: Fix 64 bit arithmetic in assembler backend.</li> | ||
132 | <li>x64: Fix struct-by-value calling conventions.</li> | ||
133 | <li>ARM: Ensure invocation of SPLIT pass for float conversions.</li> | ||
134 | </ul></li> | ||
135 | <li>Structural and performance enhancements: | ||
136 | <ul> | ||
137 | <li>Display trace types with <tt>-jv</tt> and <tt>-jdump</tt>.</li> | ||
138 | <li>Record isolated calls. But prefer recording loops over calls.</li> | ||
139 | <li>Specialize to prototype for non-monomorphic functions. Solves the | ||
140 | trace-explosion problem for closure-heavy programming styles.</li> | ||
141 | <li>Always generate a portable <tt>vmdef.lua</tt>. Easier for distros.</li> | ||
142 | </ul></li> | ||
143 | </ul> | ||
144 | |||
145 | <h2 id="LuaJIT-2.0.0-beta8">LuaJIT 2.0.0-beta8 — 2011-06-23</h2> | ||
146 | <ul> | ||
147 | <li>New features: | ||
148 | <ul> | ||
149 | <li>Soft-float ARM port of LuaJIT is complete.</li> | ||
150 | <li>Add support for bytecode loading/saving and <tt>-b</tt> command line | ||
151 | option.</li> | ||
152 | <li>From Lua 5.2: <tt>__len</tt> metamethod for tables | ||
153 | (disabled by default).</li> | ||
154 | </ul></li> | ||
155 | <li>Correctness and completeness: | ||
156 | <ul> | ||
157 | <li>ARM: Misc. fixes for interpreter.</li> | ||
158 | <li>x86/x64: Fix <tt>bit.*</tt> argument checking in interpreter.</li> | ||
159 | <li>Catch early out-of-memory in memory allocator initialization.</li> | ||
160 | <li>Fix data-flow analysis for paths leading to an upvalue close.</li> | ||
161 | <li>Fix check for missing arguments in <tt>string.format()</tt>.</li> | ||
162 | <li>Fix Solaris/x86 build (note: not a supported target).</li> | ||
163 | <li>Fix recording of loops with instable directions in side traces.</li> | ||
164 | <li>x86/x64: Fix fusion of comparisons with <tt>u8</tt>/<tt>u16</tt> | ||
165 | <tt>XLOAD</tt>.</li> | ||
166 | <li>x86/x64: Fix register allocation for variable shifts.</li> | ||
167 | </ul></li> | ||
168 | <li>FFI library: | ||
169 | <ul> | ||
170 | <li>Add <tt>ffi.errno()</tt>. Save <tt>errno</tt>/<tt>GetLastError()</tt> | ||
171 | around allocations etc.</li> | ||
172 | <li>Fix <tt>__gc</tt> for VLA/VLS cdata objects.</li> | ||
173 | <li>Fix recording of casts from 32 bit cdata pointers to integers.</li> | ||
174 | <li><tt>tonumber(cdata)</tt> returns <tt>nil</tt> for non-numbers.</li> | ||
175 | <li>Show address pointed to for <tt>tostring(pointer)</tt>.</li> | ||
176 | <li>Print <tt>NULL</tt> pointers as <tt>"cdata<... *>: NULL"</tt>.</li> | ||
177 | <li>Support <tt>__tostring</tt> metamethod for pointers to structs, too.</li> | ||
178 | </ul></li> | ||
179 | <li>Structural and performance enhancements: | ||
180 | <ul> | ||
181 | <li>More tuning for loop unrolling heuristics.</li> | ||
182 | <li>Flatten and compress in-memory debug info (saves ~70%).</li> | ||
183 | </ul></li> | ||
184 | </ul> | ||
185 | |||
186 | <h2 id="LuaJIT-2.0.0-beta7">LuaJIT 2.0.0-beta7 — 2011-05-05</h2> | ||
187 | <ul> | ||
188 | <li>New features: | ||
189 | <ul> | ||
190 | <li>ARM port of the LuaJIT interpreter is complete.</li> | ||
191 | <li>FFI library: Add <tt>ffi.gc()</tt>, <tt>ffi.metatype()</tt>, | ||
192 | <tt>ffi.istype()</tt>.</li> | ||
193 | <li>FFI library: Resolve ld script redirection in <tt>ffi.load()</tt>.</li> | ||
194 | <li>From Lua 5.2: <tt>package.searchpath()</tt>, <tt>fp:read("*L")</tt>, | ||
195 | <tt>load(string)</tt>.</li> | ||
196 | <li>From Lua 5.2, disabled by default: empty statement, | ||
197 | <tt>table.unpack()</tt>, modified <tt>coroutine.running()</tt>.</li> | ||
198 | </ul></li> | ||
199 | <li>Correctness and completeness: | ||
200 | <ul> | ||
201 | <li>FFI library: numerous fixes.</li> | ||
202 | <li>Fix type mismatches in store-to-load forwarding.</li> | ||
203 | <li>Fix error handling within metamethods.</li> | ||
204 | <li>Fix <tt>table.maxn()</tt>.</li> | ||
205 | <li>Improve accuracy of <tt>x^-k</tt> on x64.</li> | ||
206 | <li>Fix code generation for Intel Atom in x64 mode.</li> | ||
207 | <li>Fix narrowing of POW.</li> | ||
208 | <li>Fix recording of retried fast functions.</li> | ||
209 | <li>Fix code generation for <tt>bit.bnot()</tt> and multiplies.</li> | ||
210 | <li>Fix error location within cpcall frames.</li> | ||
211 | <li>Add workaround for old libgcc unwind bug.</li> | ||
212 | <li>Fix <tt>lua_yield()</tt> and <tt>getmetatable(lightuserdata)</tt> on x64.</li> | ||
213 | <li>Misc. fixes for PPC/e500 interpreter.</li> | ||
214 | <li>Fix stack slot updates for down-recursion.</li> | ||
215 | </ul></li> | ||
216 | <li>Structural and performance enhancements: | ||
217 | <ul> | ||
218 | <li>Add dual-number mode (int/double) for the VM. Enabled for ARM.</li> | ||
219 | <li>Improve narrowing of arithmetic operators and <tt>for</tt> loops.</li> | ||
220 | <li>Tune loop unrolling heuristics and increase trace recorder limits.</li> | ||
221 | <li>Eliminate dead slots in snapshots using bytecode data-flow analysis.</li> | ||
222 | <li>Avoid phantom stores to proxy tables.</li> | ||
223 | <li>Optimize lookups in empty proxy tables.</li> | ||
224 | <li>Improve bytecode optimization of <tt>and</tt>/<tt>or</tt> operators.</li> | ||
225 | </ul></li> | ||
226 | </ul> | ||
227 | |||
228 | <h2 id="LuaJIT-2.0.0-beta6">LuaJIT 2.0.0-beta6 — 2011-02-11</h2> | ||
229 | <ul> | ||
230 | <li>New features: | ||
231 | <ul> | ||
232 | <li>PowerPC/e500v2 port of the LuaJIT interpreter is complete.</li> | ||
233 | <li>Various minor features from Lua 5.2: Hex escapes in literals, | ||
234 | <tt>'\*'</tt> escape, reversible <tt>string.format("%q",s)</tt>, | ||
235 | <tt>"%g"</tt> pattern, <tt>table.sort</tt> checks callbacks, | ||
236 | <tt>os.exit(status|true|false[,close])</tt>.</li> | ||
237 | <li>Lua 5.2 <tt>__pairs</tt> and <tt>__ipairs</tt> metamethods | ||
238 | (disabled by default).</li> | ||
239 | <li>Initial release of the FFI library.</li> | ||
240 | </ul></li> | ||
241 | <li>Correctness and completeness: | ||
242 | <ul> | ||
243 | <li>Fix <tt>string.format()</tt> for non-finite numbers.</li> | ||
244 | <li>Fix memory leak when compiled to use the built-in allocator.</li> | ||
245 | <li>x86/x64: Fix unnecessary resize in <tt>TSETM</tt> bytecode.</li> | ||
246 | <li>Fix various GC issues with traces and <tt>jit.flush()</tt>.</li> | ||
247 | <li>x64: Fix fusion of indexes for array references.</li> | ||
248 | <li>x86/x64: Fix stack overflow handling for coroutine results.</li> | ||
249 | <li>Enable low-2GB memory allocation on FreeBSD/x64.</li> | ||
250 | <li>Fix <tt>collectgarbage("count")</tt> result if more than 2GB is in use.</li> | ||
251 | <li>Fix parsing of hex floats.</li> | ||
252 | <li>x86/x64: Fix loop branch inversion with trailing | ||
253 | <tt>HREF+NE/EQ</tt>.</li> | ||
254 | <li>Add <tt>jit.os</tt> string.</li> | ||
255 | <li><tt>coroutine.create()</tt> permits running C functions, too.</li> | ||
256 | <li>Fix OSX build to work with newer ld64 versions.</li> | ||
257 | <li>Fix bytecode optimization of <tt>and</tt>/<tt>or</tt> operators.</li> | ||
258 | </ul></li> | ||
259 | <li>Structural and performance enhancements: | ||
260 | <ul> | ||
261 | <li>Emit specialized bytecode for <tt>pairs()</tt>/<tt>next()</tt>.</li> | ||
262 | <li>Improve bytecode coalescing of <tt>nil</tt> constants.</li> | ||
263 | <li>Compile calls to vararg functions.</li> | ||
264 | <li>Compile <tt>select()</tt>.</li> | ||
265 | <li>Improve alias analysis, esp. for loads from allocations.</li> | ||
266 | <li>Tuning of various compiler heuristics.</li> | ||
267 | <li>Refactor and extend IR conversion instructions.</li> | ||
268 | <li>x86/x64: Various backend enhancements related to the FFI.</li> | ||
269 | <li>Add SPLIT pass to split 64 bit IR instructions for 32 bit CPUs.</li> | ||
270 | </ul></li> | ||
271 | </ul> | ||
272 | |||
273 | <h2 id="LuaJIT-2.0.0-beta5">LuaJIT 2.0.0-beta5 — 2010-08-24</h2> | ||
274 | <ul> | ||
275 | <li>Correctness and completeness: | ||
276 | <ul> | ||
277 | <li>Fix trace exit dispatch to function headers.</li> | ||
278 | <li>Fix Windows and OSX builds with LUAJIT_DISABLE_JIT.</li> | ||
279 | <li>Reorganize and fix placement of generated machine code on x64.</li> | ||
280 | <li>Fix TNEW in x64 interpreter.</li> | ||
281 | <li>Do not eliminate PHIs for values only referenced from side exits.</li> | ||
282 | <li>OS-independent canonicalization of strings for non-finite numbers.</li> | ||
283 | <li>Fix <tt>string.char()</tt> range check on x64.</li> | ||
284 | <li>Fix <tt>tostring()</tt> resolving within <tt>print()</tt>.</li> | ||
285 | <li>Fix error handling for <tt>next()</tt>.</li> | ||
286 | <li>Fix passing of constant arguments to external calls on x64.</li> | ||
287 | <li>Fix interpreter argument check for two-argument SSE math functions.</li> | ||
288 | <li>Fix C frame chain corruption caused by <tt>lua_cpcall()</tt>.</li> | ||
289 | <li>Fix return from <tt>pcall()</tt> within active hook.</li> | ||
290 | </ul></li> | ||
291 | <li>Structural and performance enhancements: | ||
292 | <ul> | ||
293 | <li>Replace on-trace GC frame syncing with interpreter exit.</li> | ||
294 | <li>Improve hash lookup specialization by not removing dead keys during GC.</li> | ||
295 | <li>Turn traces into true GC objects.</li> | ||
296 | <li>Avoid starting a GC cycle immediately after library init.</li> | ||
297 | <li>Add weak guards to improve dead-code elimination.</li> | ||
298 | <li>Speed up string interning.</li> | ||
299 | </ul></li> | ||
300 | </ul> | ||
301 | |||
302 | <h2 id="LuaJIT-2.0.0-beta4">LuaJIT 2.0.0-beta4 — 2010-03-28</h2> | ||
303 | <ul> | ||
304 | <li>Correctness and completeness: | ||
305 | <ul> | ||
306 | <li>Fix precondition for on-trace creation of table keys.</li> | ||
307 | <li>Fix <tt>{f()}</tt> on x64 when table is resized.</li> | ||
308 | <li>Fix folding of ordered comparisons with same references.</li> | ||
309 | <li>Fix snapshot restores for multi-result bytecodes.</li> | ||
310 | <li>Fix potential hang when recording bytecode with nested closures.</li> | ||
311 | <li>Fix recording of <tt>getmetatable()</tt>, <tt>tonumber()</tt> and bad argument types.</li> | ||
312 | <li>Fix SLOAD fusion across returns to lower frames.</li> | ||
313 | </ul></li> | ||
314 | <li>Structural and performance enhancements: | ||
315 | <ul> | ||
316 | <li>Add array bounds check elimination. <tt>-Oabc</tt> is enabled by default.</li> | ||
317 | <li>More tuning for x64, e.g. smaller table objects.</li> | ||
318 | </ul></li> | ||
319 | </ul> | ||
320 | |||
321 | <h2 id="LuaJIT-2.0.0-beta3">LuaJIT 2.0.0-beta3 — 2010-03-07</h2> | ||
322 | <ul> | ||
323 | <li>LuaJIT x64 port: | ||
324 | <ul> | ||
325 | <li>Port integrated memory allocator to Linux/x64, Windows/x64 and OSX/x64.</li> | ||
326 | <li>Port interpreter and JIT compiler to x64.</li> | ||
327 | <li>Port DynASM to x64.</li> | ||
328 | <li>Many 32/64 bit cleanups in the VM.</li> | ||
329 | <li>Allow building the interpreter with either x87 or SSE2 arithmetics.</li> | ||
330 | <li>Add external unwinding and C++ exception interop (default on x64).</li> | ||
331 | </ul></li> | ||
332 | <li>Correctness and completeness: | ||
333 | <ul> | ||
334 | <li>Fix constructor bytecode generation for certain conditional values.</li> | ||
335 | <li>Fix some cases of ordered string comparisons.</li> | ||
336 | <li>Fix <tt>lua_tocfunction()</tt>.</li> | ||
337 | <li>Fix cutoff register in JMP bytecode for some conditional expressions.</li> | ||
338 | <li>Fix PHI marking algorithm for references from variant slots.</li> | ||
339 | <li>Fix <tt>package.cpath</tt> for non-default PREFIX.</li> | ||
340 | <li>Fix DWARF2 frame unwind information for interpreter on OSX.</li> | ||
341 | <li>Drive the GC forward on string allocations in the parser.</li> | ||
342 | <li>Implement call/return hooks (zero-cost if disabled).</li> | ||
343 | <li>Implement yield from C hooks.</li> | ||
344 | <li>Disable JIT compiler on older non-SSE2 CPUs instead of aborting.</li> | ||
345 | </ul></li> | ||
346 | <li>Structural and performance enhancements: | ||
347 | <ul> | ||
348 | <li>Compile recursive code (tail-, up- and down-recursion).</li> | ||
349 | <li>Improve heuristics for bytecode penalties and blacklisting.</li> | ||
350 | <li>Split CALL/FUNC recording and clean up fast function call semantics.</li> | ||
351 | <li>Major redesign of internal function call handling.</li> | ||
352 | <li>Improve FOR loop const specialization and integerness checks.</li> | ||
353 | <li>Switch to pre-initialized stacks. Avoid frame-clearing.</li> | ||
354 | <li>Colocation of prototypes and related data: bytecode, constants, debug info.</li> | ||
355 | <li>Cleanup parser and streamline bytecode generation.</li> | ||
356 | <li>Add support for weak IR references to register allocator.</li> | ||
357 | <li>Switch to compressed, extensible snapshots.</li> | ||
358 | <li>Compile returns to frames below the start frame.</li> | ||
359 | <li>Improve alias analysis of upvalues using a disambiguation hash value.</li> | ||
360 | <li>Compile floor/ceil/trunc to SSE2 helper calls or SSE4.1 instructions.</li> | ||
361 | <li>Add generic C call handling to IR and backend.</li> | ||
362 | <li>Improve KNUM fuse vs. load heuristics.</li> | ||
363 | <li>Compile various <tt>io.*()</tt> functions.</li> | ||
364 | <li>Compile <tt>math.sinh()</tt>, <tt>math.cosh()</tt>, <tt>math.tanh()</tt> | ||
365 | and <tt>math.random()</tt>.</li> | ||
366 | </ul></li> | ||
367 | </ul> | ||
368 | |||
369 | <h2 id="LuaJIT-2.0.0-beta2">LuaJIT 2.0.0-beta2 — 2009-11-09</h2> | ||
370 | <ul> | ||
371 | <li>Reorganize build system. Build static+shared library on POSIX.</li> | ||
372 | <li>Allow C++ exception conversion on all platforms | ||
373 | using a wrapper function.</li> | ||
374 | <li>Automatically catch C++ exceptions and rethrow Lua error | ||
375 | (DWARF2 only).</li> | ||
376 | <li>Check for the correct x87 FPU precision at strategic points.</li> | ||
377 | <li>Always use wrappers for libm functions.</li> | ||
378 | <li>Resurrect metamethod name strings before copying them.</li> | ||
379 | <li>Mark current trace, even if compiler is idle.</li> | ||
380 | <li>Ensure FILE metatable is created only once.</li> | ||
381 | <li>Fix type comparisons when different integer types are involved.</li> | ||
382 | <li>Fix <tt>getmetatable()</tt> recording.</li> | ||
383 | <li>Fix TDUP with dead keys in template table.</li> | ||
384 | <li><tt>jit.flush(tr)</tt> returns status. | ||
385 | Prevent manual flush of a trace that's still linked.</li> | ||
386 | <li>Improve register allocation heuristics for invariant references.</li> | ||
387 | <li>Compile the push/pop variants of <tt>table.insert()</tt> and | ||
388 | <tt>table.remove()</tt>.</li> | ||
389 | <li>Compatibility with MSVC <tt>link /debug</tt>.</li> | ||
390 | <li>Fix <tt>lua_iscfunction()</tt>.</li> | ||
391 | <li>Fix <tt>math.random()</tt> when compiled with <tt>-fpic</tt> (OSX).</li> | ||
392 | <li>Fix <tt>table.maxn()</tt>.</li> | ||
393 | <li>Bump <tt>MACOSX_DEPLOYMENT_TARGET</tt> to <tt>10.4</tt></li> | ||
394 | <li><tt>luaL_check*()</tt> and <tt>luaL_opt*()</tt> now support | ||
395 | negative arguments, too.<br> | ||
396 | This matches the behavior of Lua 5.1, but not the specification.</li> | ||
397 | </ul> | ||
398 | |||
399 | <h2 id="LuaJIT-2.0.0-beta1">LuaJIT 2.0.0-beta1 — 2009-10-31</h2> | ||
400 | <ul> | ||
401 | <li>This is the first public release of LuaJIT 2.0.</li> | ||
402 | <li>The whole VM has been rewritten from the ground up, so there's | ||
403 | no point in listing differences over earlier versions.</li> | ||
404 | </ul> | ||
405 | </div> | ||
406 | |||
407 | <div class="major" style="background: #d0d0ff;"> | ||
408 | <h2 id="LuaJIT-1.1.7">LuaJIT 1.1.7 — 2011-05-05</h2> | ||
409 | <ul> | ||
410 | <li>Added fixes for the | ||
411 | <a href="http://www.lua.org/bugs.html#5.1.4"><span class="ext">»</span> currently known bugs in Lua 5.1.4</a>.</li> | ||
412 | </ul> | ||
413 | |||
414 | <h2 id="LuaJIT-1.1.6">LuaJIT 1.1.6 — 2010-03-28</h2> | ||
415 | <ul> | ||
416 | <li>Added fixes for the | ||
417 | <a href="http://www.lua.org/bugs.html#5.1.4"><span class="ext">»</span> currently known bugs in Lua 5.1.4</a>.</li> | ||
418 | <li>Removed wrong GC check in <tt>jit_createstate()</tt>. | ||
419 | Thanks to Tim Mensch.</li> | ||
420 | <li>Fixed bad assertions while compiling <tt>table.insert()</tt> and | ||
421 | <tt>table.remove()</tt>.</li> | ||
422 | </ul> | ||
423 | |||
424 | <h2 id="LuaJIT-1.1.5">LuaJIT 1.1.5 — 2008-10-25</h2> | ||
425 | <ul> | ||
426 | <li>Merged with Lua 5.1.4. Fixes all | ||
427 | <a href="http://www.lua.org/bugs.html#5.1.3"><span class="ext">»</span> known bugs in Lua 5.1.3</a>.</li> | ||
428 | </ul> | ||
429 | |||
430 | <h2 id="LuaJIT-1.1.4">LuaJIT 1.1.4 — 2008-02-05</h2> | ||
431 | <ul> | ||
432 | <li>Merged with Lua 5.1.3. Fixes all | ||
433 | <a href="http://www.lua.org/bugs.html#5.1.2"><span class="ext">»</span> known bugs in Lua 5.1.2</a>.</li> | ||
434 | <li>Fixed possible (but unlikely) stack corruption while compiling | ||
435 | <tt>k^x</tt> expressions.</li> | ||
436 | <li>Fixed DynASM template for cmpss instruction.</li> | ||
437 | </ul> | ||
438 | |||
439 | <h2 id="LuaJIT-1.1.3">LuaJIT 1.1.3 — 2007-05-24</h2> | ||
440 | <ul> | ||
441 | <li>Merged with Lua 5.1.2. Fixes all | ||
442 | <a href="http://www.lua.org/bugs.html#5.1.1"><span class="ext">»</span> known bugs in Lua 5.1.1</a>.</li> | ||
443 | <li>Merged pending Lua 5.1.x fixes: "return -nil" bug, spurious count hook call.</li> | ||
444 | <li>Remove a (sometimes) wrong assertion in <tt>luaJIT_findpc()</tt>.</li> | ||
445 | <li>DynASM now allows labels for displacements and <tt>.aword</tt>.</li> | ||
446 | <li>Fix some compiler warnings for DynASM glue (internal API change).</li> | ||
447 | <li>Correct naming for SSSE3 (temporarily known as SSE4) in DynASM and x86 disassembler.</li> | ||
448 | <li>The loadable debug modules now handle redirection to stdout | ||
449 | (e.g. <tt>-j trace=-</tt>).</li> | ||
450 | </ul> | ||
451 | |||
452 | <h2 id="LuaJIT-1.1.2">LuaJIT 1.1.2 — 2006-06-24</h2> | ||
453 | <ul> | ||
454 | <li>Fix MSVC inline assembly: use only local variables with | ||
455 | <tt>lua_number2int()</tt>.</li> | ||
456 | <li>Fix "attempt to call a thread value" bug on Mac OS X: | ||
457 | make values of consts used as lightuserdata keys unique | ||
458 | to avoid joining by the compiler/linker.</li> | ||
459 | </ul> | ||
460 | |||
461 | <h2 id="LuaJIT-1.1.1">LuaJIT 1.1.1 — 2006-06-20</h2> | ||
462 | <ul> | ||
463 | <li>Merged with Lua 5.1.1. Fixes all | ||
464 | <a href="http://www.lua.org/bugs.html#5.1"><span class="ext">»</span> known bugs in Lua 5.1</a>.</li> | ||
465 | <li>Enforce (dynamic) linker error for EXE/DLL version mismatches.</li> | ||
466 | <li>Minor changes to DynASM: faster pre-processing, smaller encoding | ||
467 | for some immediates.</li> | ||
468 | </ul> | ||
469 | <p> | ||
470 | This release is in sync with Coco 1.1.1 (see the | ||
471 | <a href="http://coco.luajit.org/changes.html"><span class="ext">»</span> Coco Change History</a>). | ||
472 | </p> | ||
473 | |||
474 | <h2 id="LuaJIT-1.1.0">LuaJIT 1.1.0 — 2006-03-13</h2> | ||
475 | <ul> | ||
476 | <li>Merged with Lua 5.1 (final).</li> | ||
477 | |||
478 | <li>New JIT call frame setup: | ||
479 | <ul> | ||
480 | <li>The C stack is kept 16 byte aligned (faster). | ||
481 | Mandatory for Mac OS X on Intel, too.</li> | ||
482 | <li>Faster calling conventions for internal C helper functions.</li> | ||
483 | <li>Better instruction scheduling for function prologue, OP_CALL and | ||
484 | OP_RETURN.</li> | ||
485 | </ul></li> | ||
486 | |||
487 | <li>Miscellaneous optimizations: | ||
488 | <ul> | ||
489 | <li>Faster loads of FP constants. Remove narrow-to-wide store-to-load | ||
490 | forwarding stalls.</li> | ||
491 | <li>Use (scalar) SSE2 ops (if the CPU supports it) to speed up slot moves | ||
492 | and FP to integer conversions.</li> | ||
493 | <li>Optimized the two-argument form of <tt>OP_CONCAT</tt> (<tt>a..b</tt>).</li> | ||
494 | <li>Inlined <tt>OP_MOD</tt> (<tt>a%b</tt>). | ||
495 | With better accuracy than the C variant, too.</li> | ||
496 | <li>Inlined <tt>OP_POW</tt> (<tt>a^b</tt>). Unroll <tt>x^k</tt> or | ||
497 | use <tt>k^x = 2^(log2(k)*x)</tt> or call <tt>pow()</tt>.</li> | ||
498 | </ul></li> | ||
499 | |||
500 | <li>Changes in the optimizer: | ||
501 | <ul> | ||
502 | <li>Improved hinting for table keys derived from table values | ||
503 | (<tt>t1[t2[x]]</tt>).</li> | ||
504 | <li>Lookup hinting now works with arbitrary object types and | ||
505 | supports index chains, too.</li> | ||
506 | <li>Generate type hints for arithmetic and comparison operators, | ||
507 | OP_LEN, OP_CONCAT and OP_FORPREP.</li> | ||
508 | <li>Remove several hint definitions in favour of a generic COMBINE hint.</li> | ||
509 | <li>Complete rewrite of <tt>jit.opt_inline</tt> module | ||
510 | (ex <tt>jit.opt_lib</tt>).</li> | ||
511 | </ul></li> | ||
512 | |||
513 | <li>Use adaptive deoptimization: | ||
514 | <ul> | ||
515 | <li>If runtime verification of a contract fails, the affected | ||
516 | instruction is recompiled and patched on-the-fly. | ||
517 | Regular programs will trigger deoptimization only occasionally.</li> | ||
518 | <li>This avoids generating code for uncommon fallback cases | ||
519 | most of the time. Generated code is up to 30% smaller compared to | ||
520 | LuaJIT 1.0.3.</li> | ||
521 | <li>Deoptimization is used for many opcodes and contracts: | ||
522 | <ul> | ||
523 | <li>OP_CALL, OP_TAILCALL: type mismatch for callable.</li> | ||
524 | <li>Inlined calls: closure mismatch, parameter number and type mismatches.</li> | ||
525 | <li>OP_GETTABLE, OP_SETTABLE: table or key type and range mismatches.</li> | ||
526 | <li>All arithmetic and comparison operators, OP_LEN, OP_CONCAT, | ||
527 | OP_FORPREP: operand type and range mismatches.</li> | ||
528 | </ul></li> | ||
529 | <li>Complete redesign of the debug and traceback info | ||
530 | (bytecode ↔ mcode) to support deoptimization. | ||
531 | Much more flexible and needs only 50% of the space.</li> | ||
532 | <li>The modules <tt>jit.trace</tt>, <tt>jit.dumphints</tt> and | ||
533 | <tt>jit.dump</tt> handle deoptimization.</li> | ||
534 | </ul></li> | ||
535 | |||
536 | <li>Inlined many popular library functions | ||
537 | (for commonly used arguments only): | ||
538 | <ul> | ||
539 | <li>Most <tt>math.*</tt> functions (the 18 most used ones) | ||
540 | [2x-10x faster].</li> | ||
541 | <li><tt>string.len</tt>, <tt>string.sub</tt> and <tt>string.char</tt> | ||
542 | [2x-10x faster].</li> | ||
543 | <li><tt>table.insert</tt>, <tt>table.remove</tt> and <tt>table.getn</tt> | ||
544 | [3x-5x faster].</li> | ||
545 | <li><tt>coroutine.yield</tt> and <tt>coroutine.resume</tt> | ||
546 | [3x-5x faster].</li> | ||
547 | <li><tt>pairs</tt>, <tt>ipairs</tt> and the corresponding iterators | ||
548 | [8x-15x faster].</li> | ||
549 | </ul></li> | ||
550 | |||
551 | <li>Changes in the core and loadable modules and the stand-alone executable: | ||
552 | <ul> | ||
553 | <li>Added <tt>jit.version</tt>, <tt>jit.version_num</tt> | ||
554 | and <tt>jit.arch</tt>.</li> | ||
555 | <li>Reorganized some internal API functions (<tt>jit.util.*mcode*</tt>).</li> | ||
556 | <li>The <tt>-j dump</tt> output now shows JSUB names, too.</li> | ||
557 | <li>New x86 disassembler module written in pure Lua. No dependency | ||
558 | on ndisasm anymore. Flexible API, very compact (500 lines) | ||
559 | and complete (x87, MMX, SSE, SSE2, SSE3, SSSE3, privileged instructions).</li> | ||
560 | <li><tt>luajit -v</tt> prints the LuaJIT version and copyright | ||
561 | on a separate line.</li> | ||
562 | </ul></li> | ||
563 | |||
564 | <li>Added SSE, SSE2, SSE3 and SSSE3 support to DynASM.</li> | ||
565 | <li>Miscellaneous doc changes. Added a section about | ||
566 | <a href="install.html#embedding">embedding LuaJIT</a>.</li> | ||
567 | </ul> | ||
568 | <p> | ||
569 | This release is in sync with Coco 1.1.0 (see the | ||
570 | <a href="http://coco.luajit.org/changes.html"><span class="ext">»</span> Coco Change History</a>). | ||
571 | </p> | ||
572 | </div> | ||
573 | |||
574 | <div class="major" style="background: #ffffd0;"> | ||
575 | <h2 id="LuaJIT-1.0.3">LuaJIT 1.0.3 — 2005-09-08</h2> | ||
576 | <ul> | ||
577 | <li>Even more docs.</li> | ||
578 | <li>Unified closure checks in <tt>jit.*</tt>.</li> | ||
579 | <li>Fixed some range checks in <tt>jit.util.*</tt>.</li> | ||
580 | <li>Fixed __newindex call originating from <tt>jit_settable_str()</tt>.</li> | ||
581 | <li>Merged with Lua 5.1 alpha (including early bug fixes).</li> | ||
582 | </ul> | ||
583 | <p> | ||
584 | This is the first public release of LuaJIT. | ||
585 | </p> | ||
586 | |||
587 | <h2 id="LuaJIT-1.0.2">LuaJIT 1.0.2 — 2005-09-02</h2> | ||
588 | <ul> | ||
589 | <li>Add support for flushing the Valgrind translation cache <br> | ||
590 | (<tt>MYCFLAGS= -DUSE_VALGRIND</tt>).</li> | ||
591 | <li>Add support for freeing executable mcode memory to the <tt>mmap()</tt>-based | ||
592 | variant for POSIX systems.</li> | ||
593 | <li>Reorganized the C function signature handling in | ||
594 | <tt>jit.opt_lib</tt>.</li> | ||
595 | <li>Changed to index-based hints for inlining C functions. | ||
596 | Still no support in the backend for inlining.</li> | ||
597 | <li>Hardcode <tt>HEAP_CREATE_ENABLE_EXECUTE</tt> value if undefined.</li> | ||
598 | <li>Misc. changes to the <tt>jit.*</tt> modules.</li> | ||
599 | <li>Misc. changes to the Makefiles.</li> | ||
600 | <li>Lots of new docs.</li> | ||
601 | <li>Complete doc reorg.</li> | ||
602 | </ul> | ||
603 | <p> | ||
604 | Not released because Lua 5.1 alpha came out today. | ||
605 | </p> | ||
606 | |||
607 | <h2 id="LuaJIT-1.0.1">LuaJIT 1.0.1 — 2005-08-31</h2> | ||
608 | <ul> | ||
609 | <li>Missing GC step in <tt>OP_CONCAT</tt>.</li> | ||
610 | <li>Fix result handling for C –> JIT calls.</li> | ||
611 | <li>Detect CPU feature bits.</li> | ||
612 | <li>Encode conditional moves (<tt>fucomip</tt>) only when supported.</li> | ||
613 | <li>Add fallback instructions for FP compares.</li> | ||
614 | <li>Add support for <tt>LUA_COMPAT_VARARG</tt>. Still disabled by default.</li> | ||
615 | <li>MSVC needs a specific place for the <tt>CALLBACK</tt> attribute | ||
616 | (David Burgess).</li> | ||
617 | <li>Misc. doc updates.</li> | ||
618 | </ul> | ||
619 | <p> | ||
620 | Interim non-public release. | ||
621 | Special thanks to Adam D. Moss for reporting most of the bugs. | ||
622 | </p> | ||
623 | |||
624 | <h2 id="LuaJIT-1.0.0">LuaJIT 1.0.0 — 2005-08-29</h2> | ||
625 | <p> | ||
626 | This is the initial non-public release of LuaJIT. | ||
627 | </p> | ||
628 | </div> | ||
629 | <br class="flush"> | ||
630 | </div> | ||
631 | <div id="foot"> | ||
632 | <hr class="hide"> | ||
633 | Copyright © 2005-2011 Mike Pall | ||
634 | <span class="noprint"> | ||
635 | · | ||
636 | <a href="contact.html">Contact</a> | ||
637 | </span> | ||
638 | </div> | ||
639 | </body> | ||
640 | </html> | ||