Fixed softfloat logarithmic functions when input value was nan.

diff --git a/softfloat/softfloat_fpsp.cpp b/softfloat/softfloat_fpsp.cpp
index ec94ff44c30fd59cccdfeebd866ba46e1bd104e5..177b0f100edaf6e8ed50eb68e0ecf527ff875cdc 100644 (file)
--- a/softfloat/softfloat_fpsp.cpp
+++ b/softfloat/softfloat_fpsp.cpp
@@ -1003,7 +1003,7 @@ floatx80 floatx80_log10(floatx80 a, float_status *status)
        aSign = extractFloatx80Sign(a);
        
        if (aExp == 0x7FFF) {
-               if ((uint64_t) (aSig<<1)) propagateFloatx80NaNOneArg(a, status);
+               if ((uint64_t) (aSig<<1)) return propagateFloatx80NaNOneArg(a, status);
                if (aSign == 0)
                        return packFloatx80(0, 0x7FFF, floatx80_default_infinity_low);
        }
@@ -1051,7 +1051,7 @@ floatx80 floatx80_log2(floatx80 a, float_status *status)
        aSign = extractFloatx80Sign(a);
        
        if (aExp == 0x7FFF) {
-               if ((uint64_t) (aSig<<1)) propagateFloatx80NaNOneArg(a, status);
+               if ((uint64_t) (aSig<<1)) return propagateFloatx80NaNOneArg(a, status);
                if (aSign == 0)
                        return packFloatx80(0, 0x7FFF, floatx80_default_infinity_low);
        }
@@ -1109,7 +1109,7 @@ floatx80 floatx80_logn(floatx80 a, float_status *status)
        aSign = extractFloatx80Sign(a);
        
        if (aExp == 0x7FFF) {
-               if ((uint64_t) (aSig<<1)) propagateFloatx80NaNOneArg(a, status);
+               if ((uint64_t) (aSig<<1)) return propagateFloatx80NaNOneArg(a, status);
                if (aSign == 0)
                        return packFloatx80(0, 0x7FFF, floatx80_default_infinity_low);
        }
@@ -1244,7 +1244,7 @@ floatx80 floatx80_lognp1(floatx80 a, float_status *status)
        aSign = extractFloatx80Sign(a);
        
        if (aExp == 0x7FFF) {
-               if ((uint64_t) (aSig<<1)) propagateFloatx80NaNOneArg(a, status);
+               if ((uint64_t) (aSig<<1)) return propagateFloatx80NaNOneArg(a, status);
                if (aSign) {
                        float_raise(float_flag_invalid, status);
                        a.low = floatx80_default_nan_low;