diff options
| author | Chris Lattner <sabre@nondot.org> | 2005-12-23 00:16:34 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-12-23 00:16:34 +0000 |
| commit | 35481892da1e5634bf497c8a0cabb1bb5a8b8fef (patch) | |
| tree | 1b67bab9e9899f9cc2dd6272f4c30513f3584233 /lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 1ac1c4b9d2877bd2d15bcf578bc617a605d815b0 (diff) | |
add very simple support for the BIT_CONVERT node
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24970 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index c17937d05e..ec75dfee32 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -889,6 +889,12 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT, return Operand.Val->getOperand(0); } break; + case ISD::BIT_CONVERT: + // Basic sanity checking. + assert(MVT::getSizeInBits(VT)==MVT::getSizeInBits(Operand.getValueType()) && + "Cannot BIT_CONVERT between two different types!"); + if (VT == Operand.getValueType()) return Operand; // noop conversion. + break; case ISD::FNEG: if (OpOpcode == ISD::FSUB) // -(X-Y) -> (Y-X) return getNode(ISD::FSUB, VT, Operand.Val->getOperand(1), @@ -1931,6 +1937,7 @@ const char *SDNode::getOperationName(const SelectionDAG *G) const { case ISD::UINT_TO_FP: return "uint_to_fp"; case ISD::FP_TO_SINT: return "fp_to_sint"; case ISD::FP_TO_UINT: return "fp_to_uint"; + case ISD::BIT_CONVERT: return "bit_convert"; // Control flow instructions case ISD::BR: return "br"; |