llvm-project

e7e4de55 - AArch64: Respect subregister operands in some peephole opts (#237091)

AArch64: Respect subregister operands in some peephole opts (#237091) Get the correct operand constraint class accounting for any subregister indexes on the operands. This previously would use the direct register class from the virtual register, not accounting for the subregister indexes in the operands. Also remove pointless attempts to treat inability to constrain as a recoverable condition since all the uses asserted anyway. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>