diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-06-26 20:32:52 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-06-26 20:32:52 +0000 |
| commit | 08bbd35a80bf7765fe0d3043f9eb5a2f2786b649 (patch) | |
| tree | 80108f0f128657f8623f8f66ad9735b4d88e7b47 /lib/Analysis/ValueTracking.cpp | |
| parent | 7c7aba6e5fef47a01a136be655b0a92cfd7090f6 (diff) | |
Notes
Diffstat (limited to 'lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | lib/Analysis/ValueTracking.cpp | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp index b065f427b06cb..fd6e3a643bf03 100644 --- a/lib/Analysis/ValueTracking.cpp +++ b/lib/Analysis/ValueTracking.cpp @@ -686,8 +686,7 @@ static void computeKnownBitsFromAssume(const Value *V, KnownBits &Known, Known.One |= RHSKnown.Zero; // assume(v >> c = a) } else if (match(Arg, - m_c_ICmp(Pred, m_CombineOr(m_LShr(m_V, m_ConstantInt(C)), - m_AShr(m_V, m_ConstantInt(C))), + m_c_ICmp(Pred, m_Shr(m_V, m_ConstantInt(C)), m_Value(A))) && Pred == ICmpInst::ICMP_EQ && isValidAssumeForContext(I, Q.CxtI, Q.DT)) { @@ -698,9 +697,7 @@ static void computeKnownBitsFromAssume(const Value *V, KnownBits &Known, Known.Zero |= RHSKnown.Zero << C->getZExtValue(); Known.One |= RHSKnown.One << C->getZExtValue(); // assume(~(v >> c) = a) - } else if (match(Arg, m_c_ICmp(Pred, m_Not(m_CombineOr( - m_LShr(m_V, m_ConstantInt(C)), - m_AShr(m_V, m_ConstantInt(C)))), + } else if (match(Arg, m_c_ICmp(Pred, m_Not(m_Shr(m_V, m_ConstantInt(C))), m_Value(A))) && Pred == ICmpInst::ICMP_EQ && isValidAssumeForContext(I, Q.CxtI, Q.DT)) { |