Displaying 2 results from an estimated 2 matches for "gohman_codegenandselectiondags_hi".
2010 Sep 03
1
[LLVMdev] Thoughts about the llvm architecture -
...ohman describes the various pipeline
stages that happens during CodeGen.
And explains the bigger picture on how LLVM IR are converted by the
CodeGen into a leagal stream of MachineInstr.
Slides:
http://llvm.org/devmtg/2008-08/Gohman_CodeGenAndSelectionDAGs.pdf
Video:
http://llvm.org/devmtg/2008-08/Gohman_CodeGenAndSelectionDAGs_Hi.m4v
For more info see
http://llvm.org/docs/CodeGenerator.html
> For example it seems that ligalization takes place after instcombine,
> but I would think it
> should happen before instcombine.
>
The combine phase are actually run twice
Combine
Legalize
Combine
> -Jochen
>...
2010 Sep 03
3
[LLVMdev] Thoughts about the llvm architecture
>> Hi!
>>
>> The following thoughts about the llvm architecture I'd like to share
>> with you
>> (from the perspective of a user):
>>
>> - If a backend has no vector support, then I wonder why there is no
>> de-vectorization
>> pass that operates on indermediate llvm-ir. I would think that if you
>> use such a target
>> then