2 Commits

Author	SHA1	Message	Date
Puyan Lotfi	43e94b15ea	Followup on Proposal to move MIR physical register namespace to '$' sigil. ... Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922	2018-01-31 22:04:26 +00:00
Jonas Paulsson	d1ec738502	Handle a COPY with undef source operand in LowerCopy() ... Llvm-stress discovered that a COPY may end up in ExpandPostRA::LowerCopy() with an undef source operand. It is not possible for the target to handle this, as this flag is not passed to TII->copyPhysReg(). This patch solves this by treating such a COPY as an identity COPY. Review: Matthias Braun https://reviews.llvm.org/D32892 llvm-svn: 302877	2017-05-12 06:32:03 +00:00