Alexander Shaposhnikov c916840539 [SimplifyCFG] Improve SwitchToLookupTable optimization ...

Try to use the original value as an index (in the lookup table)
in more cases (to avoid one subtraction and shorten the dependency chain)
(https://github.com/llvm/llvm-project/issues/56189).

Test plan:
1/ ninja check-all
2/ bootstrapped LLVM + Clang pass tests

Differential revision: https://reviews.llvm.org/D128897

2022-07-13 23:21:45 +00:00

273 KiB

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