Add "inreg" field to CallSDNode (doesn't increase

its size).  Adjust various lowering functions to
pass this info through from CallInst.  Use it to
implement sseregparm returns on X86.  Remove
X86_ssecall calling convention.

llvm-svn: 56677

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/CallingConvLower.cpp b/llvm/lib/CodeGen/SelectionDAG/CallingConvLower.cpp
index a6f52dd0244..c0077793d0e 100644
--- a/llvm/lib/CodeGen/SelectionDAG/CallingConvLower.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/CallingConvLower.cpp
@@ -126,7 +126,10 @@ void CCState::AnalyzeCallOperands(SmallVectorImpl<MVT> &ArgVTs,
 void CCState::AnalyzeCallResult(CallSDNode *TheCall, CCAssignFn Fn) {
   for (unsigned i = 0, e = TheCall->getNumRetVals(); i != e; ++i) {
     MVT VT = TheCall->getRetValType(i);
-    if (Fn(i, VT, VT, CCValAssign::Full, ISD::ArgFlagsTy(), *this)) {
+    ISD::ArgFlagsTy Flags = ISD::ArgFlagsTy();
+    if (TheCall->isInreg())
+      Flags.setInReg();
+    if (Fn(i, VT, VT, CCValAssign::Full, Flags, *this)) {
       cerr << "Call result #" << i << " has unhandled type "
            << VT.getMVTString() << "\n";
       abort();