[PATCH] D68065: Propeller: LLD Support for Basic Block Sections

Sriraman Tallam via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Apr 7 07:34:45 PDT 2020


tmsriram added inline comments.


================
Comment at: lld/ELF/Writer.cpp:2118
+  // sections.
+  //auto startOptBBJumpTime = system_clock::now();
+  optimizeBasicBlockJumps();
----------------
MaskRay wrote:
> tmsriram wrote:
> > MaskRay wrote:
> > > MaskRay wrote:
> > > > Delete unrelated comments.
> > > `optimizeBasicBlockJumps` calls assignAddresses, which was only called in finalizeAddressDependentContent.
> > > 
> > > We hope assignAddresses caller are grouped together (if in.symTab needs to be finalized first, please add a comment). Can you move this pass immediately before (or after) finalizeAddressDependentContent?
> > Correct me if I am wrong but finalizing in.symtab before we optimize seems important, I added a comment here.  If we relax jumps going forward, we would definitely need to know how far they are.
> > Run after in.symTab is finalized.
> 
> Why is important?
Modified comment.


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68065/new/

https://reviews.llvm.org/D68065





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