Implemented Support of IA interrupt and exception handlers:

[oota-llvm.git] / lib / CodeGen / SelectionDAG / SelectionDAGBuilder.cpp

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 544c7e7631d9ef4482168c5395fbe1581d464a53..e6e6cdc9ca3086dd26c6dd7c9aa4b2d829670dcc 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -7361,6 +7361,11 @@ void SelectionDAGISel::LowerArguments(const Function &F) {
         // in the various CC lowering callbacks.
         Flags.setByVal();
       }
         // in the various CC lowering callbacks.
         Flags.setByVal();
       }

+      if (F.getCallingConv() == CallingConv::X86_INTR) {
+        // IA Interrupt passes frame (1st parameter) by value in the stack.
+        if (Idx == 1)
+          Flags.setByVal();
+      }

       if (Flags.isByVal() || Flags.isInAlloca()) {
         PointerType *Ty = cast<PointerType>(I->getType());
         Type *ElementTy = Ty->getElementType();
       if (Flags.isByVal() || Flags.isInAlloca()) {
         PointerType *Ty = cast<PointerType>(I->getType());
         Type *ElementTy = Ty->getElementType();