llvm-project

62bbe3ff - Fix buildbot failure by explicitly disabling partial reductions in TTI. (#190165)

Fix buildbot failure by explicitly disabling partial reductions in TTI. (#190165) Partial reductions were previously disabled by default, but by implementing a generic cost-model in BasicTTIImpl (#189905) this now accidentally enables the use of those when vectorising loops for targets that may not support this yet.