Add a divided flag for the first piece of an argument divided into mulitple parts. Fixes PR1643
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49611 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index ac5cfd2..04aa472 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -4162,8 +4162,11 @@
unsigned NumRegs = getNumRegisters(VT);
for (unsigned i = 0; i != NumRegs; ++i) {
RetVals.push_back(RegisterVT);
+
+ if (NumRegs > 1 && i == 0)
+ Flags.setDivided();
// if it isn't first piece, alignment must be 1
- if (i > 0)
+ else if (i > 0)
Flags.setOrigAlign(1);
Ops.push_back(DAG.getArgFlags(Flags));
}
@@ -4285,7 +4288,9 @@
for (unsigned i = 0; i != NumParts; ++i) {
// if it isn't first piece, alignment must be 1
ISD::ArgFlagsTy MyFlags = Flags;
- if (i != 0)
+ if (NumParts > 1 && i == 0)
+ MyFlags.setDivided();
+ else if (i != 0)
MyFlags.setOrigAlign(1);
Ops.push_back(Parts[i]);