Nikita Popov ab6876a40d reland: [Local] Allow creating callbr with duplicate successors ...

Since D129288, callbr is allowed to have duplicate successors. This patch removes a limitation which prevents optimizations from actually producing such callbrs.

This is probably the riskiest of all the recent callbr changes, because code with incorrect assumptions might be lurking somewhere. I fixed the one case I encountered ahead of time in 8201e3ef5c.

Reviewed By: nickdesaulniers

Differential Revision: https://reviews.llvm.org/D129997

Originally landed as
commit 08860f525a ("[Local] Allow creating callbr with duplicate successors")

Reverted in
commit 1cf6b93df1 ("Revert "[Local] Allow creating callbr with duplicate successors"")

2022-08-31 13:23:00 -07:00

127 KiB

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