[LLVMdev] x86 calling conventions refactoring

[Gordon Henriksen]

On 2008-01-01, at 20:05, Gordon Henriksen wrote:

> The attachment supersedes the previous patch. It incorporates some  
> feedback from Anton and takes the next step of merging the largely  
> duplicated calling convention logic in X86ISelLowering.
>
> • LowerCCCArguments, LowerX86_64CCCArguments and  
> LowerFastCCArguments are merged and inlined directly into  
> LowerFORMAL_ARGUMENTS.
> • I moved LowerFORMAL_ARGUMENTS to the location where  
> LowerCCCArguments was in order to facilitate review (otherwise the  
> diff would contain no useful deltas), but it should go back where it  
> belongs afterwards.
> • LowerX86_64CCCCallTo and LowerX86_64CCCCallTo were consolidated  
> with LowerCCCCallTo.
> • I haven't yet tackled merging LowerCCCCallTo and LowerTailCallTo.
>
> There net savings is 405 LOC.
>
> I'd appreciate tests on Windows and x86-64 hosts, since some of the  
> logic was rather convoluted.

This rebases this patch to r45536 (http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20071231/056756.html 
) and I also finished merging LowerCCC- and -TailCallTo.

-508 LOC!

— Gordon


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