[Webkit-unassigned] [Bug 191258] New: [JSC][MIPS] JIT support does not work on MIPS R6

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Nov 5 05:33:17 PST 2018 

https://bugs.webkit.org/show_bug.cgi?id=191258

            Bug ID: 191258
           Summary: [JSC][MIPS] JIT support does not work on MIPS R6
           Product: WebKit
           Version: Other
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aperez at igalia.com

Created attachment 353853

  --> https://bugs.webkit.org/attachment.cgi?id=353853&action=review

Minimal Buildroot configuration to trigger the issue

Currently it is not possible to even build JIT support on MIPS R6
due to the offline assembler using some instructions which have
removed in R6 (like “addi” and “movz”). We would need to generate
slightly different code in this case (e.g. use “seleqz/selnez” in
place of “movz”), and alse make sure that the JIT generates code
accordingly for MIPS R6.

I am attaching a minimal Buildroot configuration which builds
WebKitGTK+ 2.22.3 and causes this issue. It has been tested
with a Git checkout of Buildroot at commit 435613ef29.

---- Error message: ----

[ 52%] Building CXX object Source/JavaScriptCore/CMakeFiles/JavaScriptCore.dir/llint/LowLevelInterpreter.cpp.o
/tmp/ccqrsIMe.s: Assembler messages:
/tmp/ccqrsIMe.s:2841: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $v1,$t8,$t7'
/tmp/ccqrsIMe.s:2847: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $t2,$t8,$t7'
/tmp/ccqrsIMe.s:2852: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $v1,$t7,$t8'
/tmp/ccqrsIMe.s:2887: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movn $v1,$t7,$t8'
/tmp/ccqrsIMe.s:2893: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movn $t2,$t7,$t8'
/tmp/ccqrsIMe.s:2898: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movn $v1,$t8,$t7'
/tmp/ccqrsIMe.s:2961: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $v0,$t7,$t8'
/tmp/ccqrsIMe.s:3032: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movn $v0,$t8,$t7'
/tmp/ccqrsIMe.s:3616: Error: opcode not supported on this processor: mips32r6 (mips32r6) `mult $v1,$t3'
/tmp/ccqrsIMe.s:3617: Error: opcode not supported on this processor: mips32r6 (mips32r6) `mflo $t3'
/tmp/ccqrsIMe.s:3618: Error: opcode not supported on this processor: mips32r6 (mips32r6) `mfhi $t8'
/tmp/ccqrsIMe.s:3865: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.eq.d $f18,$f2'
/tmp/ccqrsIMe.s:3866: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_binaryOpCustomStore__integerOperationAndStore__notInt'
/tmp/ccqrsIMe.s:4403: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $v0,$t7,$t8'
/tmp/ccqrsIMe.s:4456: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $t3,$t7,$t8'
/tmp/ccqrsIMe.s:4494: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $t3,$t7,$t8'
/tmp/ccqrsIMe.s:4520: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $v1,$t7,$t8'
/tmp/ccqrsIMe.s:4550: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $v0,$t8,$t7'
/tmp/ccqrsIMe.s:4621: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $v1,$t7,$t8'
/tmp/ccqrsIMe.s:5352: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.eq.d $f0,$f0'
/tmp/ccqrsIMe.s:5353: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_opGetByValSlow'
/tmp/ccqrsIMe.s:5585: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.eq.d $f0,$f0'
/tmp/ccqrsIMe.s:5586: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_putByVal__opPutByValSlow'
/tmp/ccqrsIMe.s:5894: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.eq.d $f0,$f0'
/tmp/ccqrsIMe.s:5895: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_48_putByVal__opPutByValSlow'
/tmp/ccqrsIMe.s:8216: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movz $v0,$t7,$t8'
/tmp/ccqrsIMe.s:8280: Error: opcode not supported on this processor: mips32r6 (mips32r6) `movn $v0,$t8,$t7'
/tmp/ccqrsIMe.s:8765: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.olt.d $f0,$f2'
/tmp/ccqrsIMe.s:8766: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1t .L_offlineasm_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:8778: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.olt.d $f0,$f2'
/tmp/ccqrsIMe.s:8779: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1t .L_offlineasm_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:8856: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.olt.d $f0,$f2'
/tmp/ccqrsIMe.s:8857: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_68_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:8869: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.olt.d $f0,$f2'
/tmp/ccqrsIMe.s:8870: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_68_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:8947: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ule.d $f0,$f2'
/tmp/ccqrsIMe.s:8948: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_69_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:8960: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ule.d $f0,$f2'
/tmp/ccqrsIMe.s:8961: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_69_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9038: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ule.d $f0,$f2'
/tmp/ccqrsIMe.s:9039: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1t .L_offlineasm_70_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9051: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ule.d $f0,$f2'
/tmp/ccqrsIMe.s:9052: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1t .L_offlineasm_70_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9129: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ole.d $f0,$f2'
/tmp/ccqrsIMe.s:9130: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1t .L_offlineasm_71_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9142: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ole.d $f0,$f2'
/tmp/ccqrsIMe.s:9143: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1t .L_offlineasm_71_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9220: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ole.d $f0,$f2'
/tmp/ccqrsIMe.s:9221: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_72_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9233: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ole.d $f0,$f2'
/tmp/ccqrsIMe.s:9234: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_72_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9311: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ult.d $f0,$f2'
/tmp/ccqrsIMe.s:9312: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_73_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9324: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ult.d $f0,$f2'
/tmp/ccqrsIMe.s:9325: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1f .L_offlineasm_73_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9402: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ult.d $f0,$f2'
/tmp/ccqrsIMe.s:9403: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1t .L_offlineasm_74_compareJump__jumpTarget'
/tmp/ccqrsIMe.s:9415: Error: opcode not supported on this processor: mips32r6 (mips32r6) `c.ult.d $f0,$f2'
/tmp/ccqrsIMe.s:9416: Error: opcode not supported on this processor: mips32r6 (mips32r6) `bc1t .L_offlineasm_74_compareJump__jumpTarget'
/tmp/ccNhC7qP.s: Assembler messages:
/tmp/ccNhC7qP.s:17: Error: opcode not supported on this processor: mips32r6 (mips32r6) `addi $a0,$sp,-8'

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20181105/854ae4b4/attachment-0001.html>

More information about the webkit-unassigned mailing list