AMDGPU: Fix input chain when gluing copies to m0
I don't think this was causing any observable issues, but was making
reading the DAG dump confusing.
llvm-svn: 363389
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
index 60bf953..3d692bc 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
@@ -501,13 +501,16 @@
// Write max value to m0 before each load operation
- SDValue M0 = Lowering.copyToM0(*CurDAG, CurDAG->getEntryNode(), SDLoc(N),
+ assert(N->getOperand(0).getValueType() == MVT::Other && "Expected chain");
+
+ SDValue M0 = Lowering.copyToM0(*CurDAG, N->getOperand(0), SDLoc(N),
Val);
SDValue Glue = M0.getValue(1);
SmallVector <SDValue, 8> Ops;
- for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
+ Ops.push_back(M0); // Replace the chain.
+ for (unsigned i = 1, e = N->getNumOperands(); i != e; ++i)
Ops.push_back(N->getOperand(i));
Ops.push_back(Glue);