llvm-project

108a22ed - Revert "ValueTracking: Improve handling of fadd in computeKnownFPClass." (#174290)

Revert "ValueTracking: Improve handling of fadd in computeKnownFPClass." (#174290) Reverts llvm/llvm-project#174123 This caused test failures within LLVM libc. They can be reproduced by doing a libc build against a clang with this commit included and running `ninja -k 0 libc.test.src.math.smoke.log1p_test.__unit__ libc.test.src.math.smoke.log1p_test.__unit__.__NO_FMA_OPT`.