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Fix a crash on release builds if gather intrinsics are passed a non-constant value for the last argument.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159501 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2012-07-01 02:17:08 +00:00
parent de6e484c15
commit 15d39adbca
1 changed files with 5 additions and 2 deletions
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7
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -1963,7 +1963,8 @@ SDNode *X86DAGToDAGISel::SelectGather(SDNode *Node, unsigned Opc) {
SDValue VIdx = Node->getOperand(4);
SDValue VMask = Node->getOperand(5);
ConstantSDNode *Scale = dyn_cast<ConstantSDNode>(Node->getOperand(6));
assert(Scale && "Scale should be a constant for GATHER operations");
if (!Scale)
return 0;
// Memory Operands: Base, Scale, Index, Disp, Segment
SDValue Disp = CurDAG->getTargetConstant(0, MVT::i32);
@ -2031,7 +2032,9 @@ SDNode *X86DAGToDAGISel::Select(SDNode *Node) {
case Intrinsic::x86_avx2_gather_q_d: Opc = X86::VPGATHERQDrm; break;
case Intrinsic::x86_avx2_gather_q_d_256: Opc = X86::VPGATHERQDYrm; break;
}
return SelectGather(Node, Opc);
SDNode *RetVal = SelectGather(Node, Opc);
if (RetVal)
return RetVal;
}
}
break;