llvm-project

bb5bbe52 - [RISCV][GISel] Support s32/s64 G_FSUB/FDIV/FNEG without F/D extensions.

[RISCV][GISel] Support s32/s64 G_FSUB/FDIV/FNEG without F/D extensions. Use libcalls for G_FSUB/FDIV. Use integer operations for G_FNEG. Copy most of the IR tests for arithmetic from SelectionDAG.