diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 27a45a1d522..e9fd888eade 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -868,6 +868,9 @@ void SelectionDAGLowering::visitJumpTable(SelectionDAGISel::JumpTable &JT) { SDOperand LD = DAG.getLoad(isPIC ? MVT::i32 : PTy, Copy.getValue(1), ADD, DAG.getSrcValue(0)); if (isPIC) { + // For Pic, the sequence is: + // BRIND(load(Jumptable + index) + RelocBase) + // RelocBase is the JumpTable on PPC and X86, GOT on Alpha SDOperand Reloc = DAG.getNode(ISD::JumpTableRelocBase, PTy, TAB); ADD = DAG.getNode(ISD::ADD, PTy, ((PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD), Reloc); |
