llvm

f471f6ff - [X86] combineTruncateWithSat - relax minimum truncation size for PACKSS/PACKUS

[X86] combineTruncateWithSat - relax minimum truncation size for PACKSS/PACKUS truncateVectorWithPACK handling of sub-128-bit result types was improved some time ago, so remove the old 64-bit limit Fixes #68466