[RISCV] Implement floating point assembler pseudo instructions
Adds the assembler aliases for the floating point instructions
which can be mapped to a single canonical instruction. The missing
pseudo instructions (flw, fld, fsw, fsd) are marked as TODO. Other
things, like for example PCREL_LO, have to be implemented first.
This patch builds upon D40902.
Differential Revision: https://reviews.llvm.org/D41071
Patch by Mario Werner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320569 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed