Michal Babej 4e3f16b2b9 initial RISC-V support (#2614) ...

Unlike related PR #2344 that simply warns about unsupported FTZ, this PR
attempts to correctly handle FTZ on RISC-V.
RISC-V 'f' extension does not support any way to enable/disable flushing
subnormals to zero, implementations are required to always support
subnormals. Therefore this PR re-uses FTZ handling code from PPC, where
flushing also has to be explicitly performed.

2026-03-17 09:25:59 -07:00

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