[llvm-branch-commits] [Hashing] Use a non-deterministic seed if LLVM_ENABLE_ABI_BREAKING_CHECKS (PR #96282)

[Fangrui Song via llvm-branch-commits]

MaskRay wrote:

The non-determinism is now restricted to `LLVM_ENABLE_ABI_BREAKING_CHECKS` builds.

LLVM_ENABLE_ABI_BREAKING_CHECKS defaults to `WITH_ASSERTS` . Release builds that disable assertions disable `LLVM_ENABLE_ABI_BREAKING_CHECKS`. This change yields a slight code size/performance advantage by eliminating a variable read.



https://github.com/llvm/llvm-project/pull/96282