Commit 566601f1 authored by Joseph Myers's avatar Joseph Myers Committed by Paolo Bonzini
Browse files

softfloat: do not set denominator high bit for floatx80 remainder 



The floatx80 remainder implementation unnecessarily sets the high bit
of bSig explicitly.  By that point in the function, arguments that are
invalid, zero, infinity or NaN have already been handled and
subnormals have been through normalizeFloatx80Subnormal, so the high
bit will already be set.  Remove the unnecessary code.

Signed-off-by: default avatarJoseph Myers <joseph@codesourcery.com>
Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Message-Id: <alpine.DEB.2.21.2006081656220.23637@digraph.polyomino.org.uk>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent b662495d

fpu/softfloat.c

+0 −1
Original line number Diff line number Diff line
@@ -5751,7 +5751,6 @@ floatx80 floatx80_modrem(floatx80 a, floatx80 b, bool mod, 
        if ( aSig0 == 0 ) return a;

        normalizeFloatx80Subnormal( aSig0, &aExp, &aSig0 );

    }

    bSig |= UINT64_C(0x8000000000000000);

    zSign = aSign;

    expDiff = aExp - bExp;

    aSig1 = 0;