This allows the openrisc softfloat implementation to set exceptions.
This also sets the correct tininess after rounding value to be
consistent with hardware and simulator implementations.
libgcc/ChangeLog:
* config/or1k/sfp-machine.h (FP_RND_NEAREST, FP_RND_ZERO,
FP_RND_PINF, FP_RND_MINF, FP_RND_MASK, FP_EX_OVERFLOW,
FP_EX_UNDERFLOW, FP_EX_INEXACT, FP_EX_INVALID, FP_EX_DIVZERO,
FP_EX_ALL): New constant macros.
(_FP_DECL_EX, FP_ROUNDMODE, FP_INIT_ROUNDMODE,
FP_HANDLE_EXCEPTIONS): New macros.
(_FP_TININESS_AFTER_ROUNDING): Change to 1.
b77f6d2fa8