Peter Maydell 34e1c27bc3 softfloat: Only raise Invalid when conversions to int are out of range ... We implement a number of float-to-integer conversions using conversion to an integer type with a wider range and then a check against the narrower range we are actually converting to. If we find the result to be out of range we correctly raise the Invalid exception, but we must also suppress other exceptions which might have been raised by the conversion function we called. This won't throw away exceptions we should have preserved, because for the 'core' exception flags the IEEE spec mandates that the only valid combinations of exception that can be raised by a single operation are Inexact + Overflow and Inexact + Underflow. For the non-IEEE softfloat flag for input denormals, we can guarantee that that flag won't have been set for out of range float-to-int conversions because a squashed denormal by definition goes to plus or minus zero, which is always in range after conversion to integer zero. This bug has been fixed for some of the float-to-int conversion routines by previous patches; fix it for the remaining functions as well, so that they all restore the pre-conversion status flags prior to raising Invalid. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net>		2014-01-08 19:07:22 +00:00
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softfloat-macros.h	softfloat: Fix shift128Right for shift counts 64..127	2013-06-10 11:36:12 -05:00
softfloat-specialize.h	softfloat: implement fused multiply-add NaN propagation for MIPS	2012-10-31 22:20:45 +01:00
softfloat.c	softfloat: Only raise Invalid when conversions to int are out of range	2014-01-08 19:07:22 +00:00