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authorPeter Maydell <peter.maydell@linaro.org>2012-04-05 19:12:34 +0100
committerBlue Swirl <blauwirbel@gmail.com>2012-04-07 11:15:44 +0000
commitb3a6a2e0417c78ec5491347eb85a7d125a5fefdc (patch)
treec14b9f56bd629a94c79034e92bbcc1e692979a78 /fpu
parenta52d28afb4e825a5b28815370a268904a4c6dc11 (diff)
downloadqemu-arm-b3a6a2e0417c78ec5491347eb85a7d125a5fefdc.tar.gz
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.c8
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 );