tree eeb801e52b78e1dfe137c872e008a4371774194c
parent 90b40414a092a5cbf35b80eb03e38787eea1a363
author Jim Grosbach <grosbach@apple.com> 1310146595 +0000
committer Jim Grosbach <grosbach@apple.com> 1310146595 +0000

TableGen'erated MC lowering for simple pseudo-instructions.

This allows the (many) pseudo-instructions we have that map onto a single
real instruction to have their expansion during MC lowering handled
automatically instead of the current cumbersome manual expansion required.
These sorts of pseudos are common when an instruction is used in situations
that require different MachineInstr flags (isTerminator, isBranch, et. al.)
than the generic instruction description has. For example, using a move
to the PC to implement a branch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134704 91177308-0d34-0410-b5e6-96231b3b80d8