[PATCH] D100099: [X86][CostModel] Try to fix cost computation load/stores of non-power-of-two vectors

[Steven Johnson via Phabricator via llvm-commits]

srj added a comment.

In D100099#2704217 <https://reviews.llvm.org/D100099#2704217>, @lebedev.ri wrote:

> If it hangs all the way back, then the bisection *can not* point to this revision, and this could not have triggered/exposed this.

Using llc on the .ll file I uploaded does indeed hang quite a ways back.

Using Halide to drive MCJIT , however, is not the same code path, and while I can't explain it, that path *does* trigger a hang starting at this revision.

As mentioned above, it doesn't seem implausible that the changes made here happened to uncover a pre-existing bug that we didn't know about before.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D100099/new/

https://reviews.llvm.org/D100099