Bug 125067 – mips path could be merged with arm/sh4 path in nativeForGenerator and privateCompileCTINativeCall

• Status: RESOLVED
• Resolution: FIXED
• Component: JavaScriptCore

[Julien Brianceau]

In nativeForGenerator and privateCompileCTINativeCall functions, CPU(MIPS) path could be merged with CPU(ARM) || CPU(SH4) path to reduce architecture specific code.

Moreover, this is likely to fix a potential issue in mips port: with current implementation Callee is put in MIPSRegisters::a2 instead of MIPSRegisters::a1 (argumentGPR1).

[Julien Brianceau]

Created attachment 218152 [details]
Merge mips and arm/sh4 paths in nativeForGenerator and privateCompileCTINativeCall functions.

I don't see regressions on my mips board with this patch, but I'd like to have a feedback from homejinni or mips guys before putting it into the commit queue.

[Balazs Kilvady]

(In reply to comment #1)
> Created an attachment (id=218152) [details]
> Merge mips and arm/sh4 paths in nativeForGenerator and privateCompileCTINativeCall functions.
> 
> I don't see regressions on my mips board with this patch, but I'd like to have a feedback from homejinni or mips guys before putting it into the commit queue.

I am on holiday so I can check/test it tomorrow. And I will definitely :)

[Julien Brianceau]

(In reply to comment #2)
> I am on holiday so I can check/test it tomorrow. And I will definitely :)

Thanks! I won't request commit queue before your feedback then.. and enjoy your day off :)

About the MIPSRegisters::a2 thing, perhaps it's just used as a temp register so I'm not sure it could fix something.

[Michael Saboff]

Comment on attachment 218152 [details]
Merge mips and arm/sh4 paths in nativeForGenerator and privateCompileCTINativeCall functions.

Looks fine.  Will cq+ after [e-mail] provides results from testing.

[Balazs Kilvady]

(In reply to comment #4)
> (From update of attachment 218152 [details])
> Looks fine.  Will cq+ after [e-mail] provides results from testing.

Looks good to me also, no more regressions with this patch.(In reply to comment #4)
> (From update of attachment 218152 [details])
> Looks fine.  Will cq+ after [e-mail] provides results from testing.

Looks good to me also, no more regressions with this patch. a2 was used as a temporary scratch register in the previous code and now argumentGPR1 == a1 is the scratch reg on MIPS which is also fine.

[Julien Brianceau]

(In reply to comment #5)
> Looks good to me also, no more regressions with this patch. a2 was used as a temporary scratch register in the previous code and now argumentGPR1 == a1 is the scratch reg on MIPS which is also fine.

Great, I'm requesting commit queue then. Thanks!

[WebKit Commit Bot]

Comment on attachment 218152 [details]
Merge mips and arm/sh4 paths in nativeForGenerator and privateCompileCTINativeCall functions.

Clearing flags on attachment: 218152

Committed r159995: <http://trac.webkit.org/changeset/159995>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.