[PATCH] D63476: [ARM] DLS/LE low-overhead loop code generation

Sam Parker via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Jun 24 01:03:28 PDT 2019


samparker added a comment.

I will try to reorder the final passes. I hope that I can change the size of the pseudo instructions to be pessimistically big enough to be a cmp and br. I imagine that TTI will have to try to calculate the size, or at least the amount of live variables, so that these loops don't cause unnecessary register pressure and actually slow things down because of spills.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63476/new/

https://reviews.llvm.org/D63476





More information about the llvm-commits mailing list