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9d090fe440
Infinity is a special case distinct from numeric overflow:
- Numeric overflow: finite value exceeds format's max normal
-> overflow|inexact
- Infinity conversion: input is already infinite
-> no flags
This commit fixes the unexpect exception flags by relocating the float
exception flag update flow to be outside the uncanon_e4m3_overflow.
And raising the overflow|inexact for numeric overflow in uncanon_normal.
Fixes: 27e989f99c ("fpu: Add conversion routines for OCP FP8 E4M3")
Reviewed-by: Chao Liu <chao.liu.zevorn@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Max Chou <max.chou@sifive.com>
Message-ID: <20260226071817.1417875-3-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>