tree f91f6950e70aa8ddfc408cdb46aba8625aa7f3ab
parent afa32d3e0e1a2dddfc76f2e9b80c4a6cc5a5387f
author Craig Topper <craig.topper@sifive.com> 1743531265 -0700
committer GitHub <noreply@github.com> 1743531265 -0700
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[RISCV] Improve error for using x18-x27 in a register list with RVE. (#133936)

matchRegisterNameHelper returns MCRegister() for RVE so the first RVE
check was dead.

For the second check, I've moved the RVE check from the comma parsing to
the identifier parsing so the diagnostic points at the register. Note
we're using matchRegisterName instead of matchRegisterNameHelper to
avoid allowing ABI names so we don't get the RVE check that lives inside
matchRegisterNameHelper.

The errors for RVE in general should probably say something other than
"invalid register", but that's a problem throughout the assembler.