I have a C file, much reduced from a newlib source file, for which Clang generates
Code generation crashes using the ZFINX extension with -Os (
clang -Os -march=rv32im_zfinx).
RISCV::CC_RISCV_FastCC allocates an F register for an argument. The F registers do not exist under ZFINX. Then
copyPhysReg reaches its
ABI is ILP32.
I can’t find an open github issue or patch. Is this a work in progress, or a bug?