diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp index 05024063392..a74d15371ca 100644 --- a/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp @@ -333,13 +333,17 @@ lowerCallFromStatepoint(ImmutableStatepoint ISP, const BasicBlock *EHPadBB, // ch, glue = callseq_end ch, glue // get_return_value ch, glue // - // get_return_value can either be a CopyFromReg to grab the return value from - // %RAX, or it can be a LOAD to load a value returned by reference via a stack - // slot. - - if (HasDef && (CallEnd->getOpcode() == ISD::CopyFromReg || - CallEnd->getOpcode() == ISD::LOAD)) - CallEnd = CallEnd->getOperand(0).getNode(); + // get_return_value can either be a sequence of CopyFromReg instructions + // to grab the return value from the return register(s), or it can be a LOAD + // to load a value returned by reference via a stack slot. + + if (HasDef) { + if (CallEnd->getOpcode() == ISD::LOAD) + CallEnd = CallEnd->getOperand(0).getNode(); + else + while (CallEnd->getOpcode() == ISD::CopyFromReg) + CallEnd = CallEnd->getOperand(0).getNode(); + } assert(CallEnd->getOpcode() == ISD::CALLSEQ_END && "expected!"); |

