[mips] handle UImm16_AltRelaxed match type

Currently, UImm16_AltRelaxed match type is not handled in
MatchAndEmitInstruction() function, which may result in
llvm_unreachable() behavior.
This patch adds necessary case for this match type.

Patch by Aleksandar Beserminji.

Differential Revision: https://reviews.llvm.org/D37682


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313077 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed