luajit

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39 discussions

by Djordje Kovacevic

Hi everyone, I have implemented asm_fpmath. The next thing that I'm about to look into is asm_fload, because it seems that there might be a problem for the following example: for i = 1, 100 do io.write('a') end Regards, Djordje -- Đorđe Kovačević Software engineer Phone +381-(0)21-480-1207 djordje.lj.kovacevic(a)rt-rk.com RT-RK Institute for Computer Based Systems Narodnog Fronta 23a 21000 Novi Sad Serbia www.rt-rk.com

9 years, 1 month

Integer comparisons

by Stefan Pejic

Hello, I ran into an issue with asm_intcomp. Is anyone working on this at the moment? Also, I noticed that enabling assertions in src/Makefile causes some tests failures. And that's happening only after the latest merges. Stefan

9 years, 1 month

Looks like a minor bug in dis_arm64.lua

by Dikshit, Abhishek

Hi I was trying the -jdump=bitmsr option in ARM64 and I was getting a failure in VM. I made a small modification. Please review and let me know if the modification is correct. ------------------------------------------------------------------------------------ diff --git a/src/jit/dis_arm64.lua b/src/jit/dis_arm64.lua index c1b6201..b39b825 100644 --- a/src/jit/dis_arm64.lua +++ b/src/jit/dis_arm64.lua @@ -1176,8 +1176,8 @@ end -- Return register name for RID. local function regname(r) - if r < 32 then return map_reg.x[r] end - return map_reg.d[r-32] + if r < 32 then return map_regs.x[r] end + return map_regs.d[r-32] end -- Public module functions. ------------------------------------------------------------------------------------- Thanks Abhishek Dikshit

9 years, 1 month

Array references

by Stefan Pejic

Hello again, I'm planning to work on some examples involving array references, so I will be looking into following functions: - asm_aref - asm_fuseabase - asm_gc_check Stefan

9 years, 2 months

Working on fpmath

by Djordje Kovacevic

Hi everyone, I have implemented min/max related functions. Now, I'll work on asm_fpmath. Regards, Djordje -- Đorđe Kovačević Software engineer Phone +381-(0)21-480-1207 djordje.lj.kovacevic(a)rt-rk.com RT-RK Institute for Computer Based Systems Narodnog Fronta 23a 21000 Novi Sad Serbia www.rt-rk.com

9 years, 2 months

Status - July 14, 2016

by Ryan Arnold

Hi All, If you have time please review the following status and let me know if it is accurate. I can make changes as necessary. https://collaborate.linaro.org/display/TCWGPUB/The+State+of+LuaJit+for+ARM+… -- Ryan S. Arnold | Linaro Toolchain Engineering Manager ryan.arnold(a)linaro.org | ryanarn on #linaro-tcwg @ freenode.irc.net T: +1-612-424-1861 <+16124241861>

9 years, 2 months

Some patches have not been merged for long time.

by Zheng Xu

Not sure if everyone is in the mailing list, so still add related engineers in the to list. Hi Charles, Can you spend some time to take a look? https://github.com/cbaylis/luajit-aarch64/pulls - Fix asm_hrefk() There are still lua_unimpl() in the code since I do not have the test cases to cover them yet. But it enables test_calln. - interleave machine codes This should be useful for developers. BTW, I will work on creating some test cases and then continue on IR_CALLxxx. Sample of interleave machine codes : $ make test_add ==== Building LuaJIT 2.1.0-beta2 ==== make -C src make[1]: Entering directory '/home/zhexu01/work/enterprise/luajit-2.0/src' make[1]: Nothing to be done for 'default'. make[1]: Leaving directory '/home/zhexu01/work/enterprise/luajit-2.0/src' ==== Successfully built LuaJIT 2.1.0-beta2 ==== make LUAJIT=" /home/zhexu01/work/enterprise/luajit-2.0/src/luajit" LUA_PATH="/home/zhexu01/work/enterprise/luajit-2.0/src/?.lua;;" -C test test_add make[1]: Entering directory '/home/zhexu01/work/enterprise/luajit-2.0/test' Running test : test_add /home/zhexu01/work/enterprise/luajit-2.0/src/luajit -jdump=+rsXa add.lua ---- TRACE 1 start add.lua:3 0007 GGET 4 0 ; "x" 0008 ADDVV 4 4 3 0009 GSET 4 0 ; "x" 0010 FORL 0 => 0007 todo: asm_ahustore todo: asm_ahustore ---- TRACE 1 IR 0000 Trace head @ 0058ff54 mov w0, #0 @ 0058ff58 movk w0, #65529, lsl #16 .... SNAP #0 [ ---- ---- ] 0001 x27 int SLOAD #2 I @ 0058ff5c ldr x27, [x19] 0002 x5 fun SLOAD #0 R @ 0058ff60 ldur x5, [x19, #-16] @ 0058ff64 lsl x5, x5, #17 @ 0058ff68 lsr x5, x5, #17 0003 x3 tab FLOAD 0002 func.env @ 0058ff6c ldr x3, [x5, #16] 0004 x4 int FLOAD 0003 tab.hmask @ 0058ff70 ldr w4, [x3, #52] 0005 > int EQ 0004 +63 @ 0058ff74 cmp x4, #63 @ 0058ff78 beq 0x0058ff80 ; 0x0058ff80 @ 0058ff7c bl 0x00580024 ->0 0006 x2 p64 FLOAD 0003 tab.node @ 0058ff80 ldr x2, [x3, #40] 0007 x1 > p64 HREFK 0006 "x" @33 @ 0058ff84 ldr x28, [x2, #800] @ 0058ff88 mov w26, #52584 @ 0058ff8c movk x26, #44348, lsl #16 @ 0058ff90 movk x26, #32895, lsl #32 @ 0058ff94 movk x26, #65533, lsl #48 @ 0058ff98 cmp x28, x26 @ 0058ff9c beq 0x0058ffa4 ; 0x0058ffa4 @ 0058ffa0 bl 0x00580024 ->0 @ 0058ffa4 add x1, x2, #792 0008 x28 > int HLOAD 0007 @ 0058ffa8 ldr x28, [x1] @ 0058ffac cmp x0, x28, lsr #32 @ 0058ffb0 beq 0x0058ffb8 ; 0x0058ffb8 @ 0058ffb4 bl 0x00580024 ->0 0009 x28 >+ int ADDOV 0008 0001 @ 0058ffb8 adds w28, w28, w27 @ 0058ffbc bvc 0x0058ffc4 ; 0x0058ffc4 @ 0058ffc0 bl 0x00580024 ->0 0010 int HSTORE 0007 0009 @ 0058ffc4 str w0, [x1, #4] @ 0058ffc8 str w28, [x1] 0011 x27 + int ADD 0001 +1 @ 0058ffcc add w27, w27, #1 .... SNAP #1 [ ---- ---- ] 0012 > int LE 0011 +100 @ 0058ffd0 cmp x27, #100 @ 0058ffd4 ble 0x0058ffdc ; 0x0058ffdc @ 0058ffd8 bl 0x00580028 ->1 .... SNAP #2 [ ---- ---- 0011 ---- ---- 0011 ] 0013 ------------ LOOP ------------ 0014 x28 >+ int ADDOV 0011 0009 @ 0058ffdc adds w28, w27, w28 @ 0058ffe0 bvc 0x0058ffe8 ; 0x0058ffe8 @ 0058ffe4 bl 0x0058002c ->2 0015 int HSTORE 0007 0014 @ 0058ffe8 str w0, [x1, #4] @ 0058ffec str w28, [x1] 0016 x27 + int ADD 0011 +1 @ 0058fff0 add w27, w27, #1 .... SNAP #3 [ ---- ---- ] 0017 > int LE 0016 +100 @ 0058fff4 cmp x27, #100 @ 0058fff8 ble 0x0058ffdc ; 0x0058ffdc 0018 x27 int PHI 0011 0016 0019 x28 int PHI 0009 0014 @ 0058fffc bl 0x00580030 ->3 ---- TRACE 1 stop -> loop ---- TRACE 1 exit 3 fff90000 ad3bd080 ad3bcd68 ad3bcd20 0000003f ad3d04a0 ad3bc5e0 00435dc4 0000003a ad3bb660 00435e98 00435ec8 00435ee4 00435efc 00435f1c fffffff7 00010051 ad3fad60 00000000 ad2a4f58 ad2a4608 ad2a459c ad3bb3d8 ad3bb378 00000000 fff90000 ad3ccd68 00000065 000013ba f8babbf0 0058fffc f8babbf0 +5767216 +5767216 +1.2728189373661e+213 +0 +0 +0 +2.1729236899484e-311 -4.4588500238274e-308 +0 +0 +0 +0 +0 +0 +0 +0 +4.0039110193038 -2.2345773240363e-103 +2.1729236899484e-311 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 make[1]: Leaving directory '/home/zhexu01/work/enterprise/luajit-2.0/test'

9 years, 2 months

Working on min/max functions

by Djordje Kovacevic

Hi everybody, I have implemented functions related to Bit operations (asm_bitop, asm_bitshift, asm_bswap). I'm letting you know that I will start working on min/max functions (asm_min_max, asm_intmin_max, asm_fpmin_max ). Regards, Djordje -- Đorđe Kovačević Software engineer Phone +381-(0)21-480-1207 djordje.lj.kovacevic(a)rt-rk.com RT-RK Institute for Computer Based Systems Narodnog Fronta 23a 21000 Novi Sad Serbia www.rt-rk.com

9 years, 2 months

IR_SLOAD

by Stefan Pejic

Hello all, I wanted to start working on asm_sload, if that's alright with everyone. It's already blocking some of the examples I'm running and it will probably become blocking point for someone else soon. Regards, Stefan

9 years, 2 months

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