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ae13018d79
Divide by zero, exception taken, leaves the destination register unmodified. Therefore we must raise the exception before returning from helper_fdiv. Move the check from do_float_check_status into helper_fdiv. At the same time, tidy the invalid exception checking so that we rely on softfloat for initial argument validation, and select the kind of invalid operand exception only when we know we must. At the same time, pass and return float64 values directly rather than bounce through the CPU_DoubleU union. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> |
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