diff options
Diffstat (limited to 'gcc/sreal.c')
| -rw-r--r-- | gcc/sreal.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/gcc/sreal.c b/gcc/sreal.c index 0337f9e540c..2b5e3ae82be 100644 --- a/gcc/sreal.c +++ b/gcc/sreal.c @@ -182,9 +182,9 @@ sreal::operator+ (const sreal &other) const { sreal tmp = -(*b_p); if (*a_p < tmp) - return signedless_minus (tmp, *a_p, false); + return signedless_minus (tmp, *a_p, true); else - return signedless_minus (*a_p, tmp, true); + return signedless_minus (*a_p, tmp, false); } gcc_checking_assert (a_p->m_negative == b_p->m_negative); @@ -203,7 +203,7 @@ sreal::signedless_plus (const sreal &a, const sreal &b, bool negative) const sreal *a_p = &a; const sreal *b_p = &b; - if (*a_p < *b_p) + if (a_p->m_exp < b_p->m_exp) std::swap (a_p, b_p); dexp = a_p->m_exp - b_p->m_exp; @@ -211,6 +211,7 @@ sreal::signedless_plus (const sreal &a, const sreal &b, bool negative) if (dexp > SREAL_BITS) { r.m_sig = a_p->m_sig; + r.m_negative = negative; return r; } @@ -248,11 +249,11 @@ sreal::operator- (const sreal &other) const /* We want to substract a smaller number from bigger for nonegative numbers. */ if (!m_negative && *this < other) - return -signedless_minus (other, *this, true); + return signedless_minus (other, *this, true); /* Example: -2 - (-3) => 3 - 2 */ if (m_negative && *this > other) - return signedless_minus (-other, -(*this), true); + return signedless_minus (-other, -(*this), false); sreal r = signedless_minus (*this, other, m_negative); @@ -274,6 +275,7 @@ sreal::signedless_minus (const sreal &a, const sreal &b, bool negative) if (dexp > SREAL_BITS) { r.m_sig = a_p->m_sig; + r.m_negative = negative; return r; } if (dexp == 0) |