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Bugfix for fp.mul and fp.fma for small numbers of e/s bits.

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Fixes #215.
This commit is contained in:
Christoph M. Wintersteiger 2015-09-10 11:37:06 +01:00
parent 44105b7aeb
commit 25f75b60fe
3 changed files with 16 additions and 7 deletions
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2
src/ast/rewriter/fpa_rewriter.cpp
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@ -468,7 +468,7 @@ br_status fpa_rewriter::mk_fma(expr * arg1, expr * arg2, expr * arg3, expr * arg
scoped_mpf v2(m_fm), v3(m_fm), v4(m_fm);
if (m_util.is_numeral(arg2, v2) && m_util.is_numeral(arg3, v3) && m_util.is_numeral(arg4, v4)) {
scoped_mpf t(m_fm);
m_fm.fused_mul_add(rm, v2, v3, v4, t);
m_fm.fma(rm, v2, v3, v4, t);
result = m_util.mk_value(t);
return BR_DONE;
}