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| author | Peter Maydell <peter.maydell@linaro.org> | 2012-04-05 19:12:34 +0100 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2012-04-07 11:15:44 +0000 |
| commit | b3a6a2e0417c78ec5491347eb85a7d125a5fefdc (patch) | |
| tree | c14b9f56bd629a94c79034e92bbcc1e692979a78 /fpu | |
| parent | a52d28afb4e825a5b28815370a268904a4c6dc11 (diff) | |
| download | qemu-b3a6a2e0417c78ec5491347eb85a7d125a5fefdc.tar.gz qemu-b3a6a2e0417c78ec5491347eb85a7d125a5fefdc.tar.bz2 qemu-b3a6a2e0417c78ec5491347eb85a7d125a5fefdc.zip | |
softfloat: float*_to_int32_round_to_zero: don't assume int32 is 32 bits
Code in the float64_to_int32_round_to_zero() function was assuming
that int32 would not be wider than 32 bits; this meant it might
not correctly detect the overflow case. We take the simple approach
of using int32_t. Also fix equivalent issues in the functions
for other float sizes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'fpu')
| -rw-r--r-- | fpu/softfloat.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 81a7d1ae09..074fbc38d0 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -1378,7 +1378,7 @@ int32 float32_to_int32_round_to_zero( float32 a STATUS_PARAM ) flag aSign; int16 aExp, shiftCount; uint32_t aSig; - int32 z; + int32_t z; a = float32_squash_input_denormal(a STATUS_VAR); aSig = extractFloat32Frac( a ); @@ -2762,7 +2762,7 @@ int32 float64_to_int32_round_to_zero( float64 a STATUS_PARAM ) flag aSign; int16 aExp, shiftCount; uint64_t aSig, savedASig; - int32 z; + int32_t z; a = float64_squash_input_denormal(a STATUS_VAR); aSig = extractFloat64Frac( a ); @@ -4248,7 +4248,7 @@ int32 floatx80_to_int32_round_to_zero( floatx80 a STATUS_PARAM ) flag aSign; int32 aExp, shiftCount; uint64_t aSig, savedASig; - int32 z; + int32_t z; aSig = extractFloatx80Frac( a ); aExp = extractFloatx80Exp( a ); @@ -5277,7 +5277,7 @@ int32 float128_to_int32_round_to_zero( float128 a STATUS_PARAM ) flag aSign; int32 aExp, shiftCount; uint64_t aSig0, aSig1, savedASig; - int32 z; + int32_t z; aSig1 = extractFloat128Frac1( a ); aSig0 = extractFloat128Frac0( a ); |