[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.

OK, here's a file that I think will repro it: F16410571: bad.ll <https://reviews.llvm.org/F16410571>

To see the hang, do `~/llvm-13-install/bin/llc -mcpu=penryn -o - -O3 bad.ll`  (Note that the cpu / microarchtecture matters here; the hang for us was only when specializing for SSE4.1 SIMD)


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

https://reviews.llvm.org/D100099