Daniel Sanders 75475edb1f [mips] Handle undef when extracting subregs from FP64 registers.
Summary:
This removes unnecessary instructions when extracting from an undefined register
and also fixes a crash for O32 when passing undef to a double argument in
held in integer registers.

Reviewers: vkalintiris

Subscribers: llvm-commits, zoran.jovanovic, petarj

Differential Revision: http://reviews.llvm.org/D13467

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250039 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-12 13:55:44 +00:00
..