[SubZero] Vector types support for MIPS
This patch implements vector operations on MIPS32 using VariableVecOn32 method (on the lines of Variable64On32).
Vector operations are scalarized prior to lowering. Each vector variable is split into 4 containers to hold a variable of vector type.
For MIPS32, four GP/FP registers are used to hold a vector variable. Arguments are passed in GP registers irrespective of the type of the vector variable.
Lit test vector-mips.ll has been added to test this implementation.
R=stichnot@chromium.org
Review URL: https://codereview.chromium.org/2380023002 .
Patch from Jaydeep Patil <jaydeep.patil@imgtec.com>.
8 files changed