diff options
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 56ee57e1f7..dfd7aa5904 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -1873,14 +1873,17 @@ static bool translateX86CC(ISD::CondCode SetCCOpcode, bool isFP, SelectionDAG &DAG) { X86CC = X86ISD::COND_INVALID; if (!isFP) { - if (SetCCOpcode == ISD::SETGT) { - if (ConstantSDNode *RHSC = dyn_cast<ConstantSDNode>(RHS)) - if (RHSC->isAllOnesValue()) { - // X > -1 -> X == 0, jump on sign. - RHS = DAG.getConstant(0, RHS.getValueType()); - X86CC = X86ISD::COND_NS; - return true; - } + if (ConstantSDNode *RHSC = dyn_cast<ConstantSDNode>(RHS)) { + if (SetCCOpcode == ISD::SETGT && RHSC->isAllOnesValue()) { + // X > -1 -> X == 0, jump !sign. + RHS = DAG.getConstant(0, RHS.getValueType()); + X86CC = X86ISD::COND_NS; + return true; + } else if (SetCCOpcode == ISD::SETLT && RHSC->isNullValue()) { + // X < 0 -> X == 0, jump on sign. + X86CC = X86ISD::COND_S; + return true; + } } switch (SetCCOpcode) { |