[clang] [clang] VectorExprEvaluator::VisitCallExpr - add constant folding for X86 pslldqi/psrldqi infrinsics (PR #157403)

[Simon Pilgrim via cfe-commits]

RKSimon wrote:

> Hi @RKSimon, just kindly pinging this PR The workflows are pending approval and the required build checks haven’t started yet. Could a maintainer please take a look? Thanks a lot!

Will take a look - sorry I missed this (unfortunately github is terrible with notifications for contributions from non project members) - CC'ing me if the best way so it appears in my github mentioned tab

https://github.com/llvm/llvm-project/pull/157403