Jay Foad a6b54ddaba [Local] invertCondition: try modifying an existing ICmpInst ...

This avoids various cases where StructurizeCFG would otherwise insert an
xor i1 instruction, and it since it generally runs late in the pipeline,
instcombine does not clean up the xor-of-cmp pattern.

Differential Revision: https://reviews.llvm.org/D118478

2022-01-31 10:44:17 +00:00

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