diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86ISelDAGToDAG.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp index 0e650c06ab..ad515414a6 100644 --- a/lib/Target/X86/X86ISelDAGToDAG.cpp +++ b/lib/Target/X86/X86ISelDAGToDAG.cpp @@ -403,6 +403,12 @@ static bool isCalleeLoad(SDValue Callee, SDValue &Chain, bool HasCallSeq) { LD->getExtensionType() != ISD::NON_EXTLOAD) return false; + // FIXME: Calls can't fold loads through segment registers yet. + if (const Value *Src = LD->getSrcValue()) + if (const PointerType *PT = dyn_cast<PointerType>(Src->getType())) + if (PT->getAddressSpace() >= 256) + return false; + // Now let's find the callseq_start. while (HasCallSeq && Chain.getOpcode() != ISD::CALLSEQ_START) { if (!Chain.hasOneUse()) @@ -563,7 +569,7 @@ bool X86DAGToDAGISel::MatchLoad(SDValue N, X86ISelAddressMode &AM) { SDValue Address = N.getOperand(1); if (Address.getOpcode() == X86ISD::SegmentBaseAddress && - !MatchSegmentBaseAddress (Address, AM)) + !MatchSegmentBaseAddress(Address, AM)) return false; return true; |