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fpu/softfloat: raise float_invalid for NaN/Inf in round_to_int_and_pack 

The re-factor broke the raising of INVALID when NaN/Inf is passed to
the float_to_int conversion functions. round_to_uint_and_pack got this
right for NaN but also missed out the Inf handling.

Fixes https://bugs.launchpad.net/qemu/+bug/1759264

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Tested-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180413140334.26622-3-alex.bennee@linaro.org
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Alex Bennée 2018-04-13 15:03:34 +01:00 committed by Peter Maydell
parent 6245327a36
commit 801bc56336
1 changed files with 3 additions and 0 deletions
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3
fpu/softfloat.c
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@ -1344,8 +1344,10 @@ static int64_t round_to_int_and_pack(FloatParts in, int rmode,
case float_class_qnan:
case float_class_dnan:
case float_class_msnan:
s->float_exception_flags = orig_flags | float_flag_invalid;
return max;
case float_class_inf:
s->float_exception_flags = orig_flags | float_flag_invalid;
return p.sign ? min : max;
case float_class_zero:
return 0;
@ -1437,6 +1439,7 @@ static uint64_t round_to_uint_and_pack(FloatParts in, int rmode, uint64_t max,
s->float_exception_flags = orig_flags | float_flag_invalid;
return max;
case float_class_inf:
s->float_exception_flags = orig_flags | float_flag_invalid;
return p.sign ? 0 : max;
case float_class_zero:
return 0;