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diff --git a/contrib/llvm/lib/Target/Sparc/SparcCallingConv.td b/contrib/llvm/lib/Target/Sparc/SparcCallingConv.td
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+++ b/contrib/llvm/lib/Target/Sparc/SparcCallingConv.td
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+//===-- SparcCallingConv.td - Calling Conventions Sparc ----*- tablegen -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This describes the calling conventions for the Sparc architectures.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// Return Value Calling Conventions
+//===----------------------------------------------------------------------===//
+
+// Sparc 32-bit C return-value convention.
+def RetCC_Sparc32 : CallingConv<[
+  CCIfType<[i32], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>,
+  CCIfType<[f32], CCAssignToReg<[F0, F1, F2, F3]>>,
+  CCIfType<[f64], CCAssignToReg<[D0, D1]>>
+]>;
+
+// Sparc 32-bit C Calling convention.
+def CC_Sparc32 : CallingConv<[
+  //Custom assign SRet to [sp+64].
+  CCIfSRet<CCCustom<"CC_Sparc_Assign_SRet">>,
+  // i32 f32 arguments get passed in integer registers if there is space.
+  CCIfType<[i32, f32], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>,
+  // f64 arguments are split and passed through registers or through stack.
+  CCIfType<[f64], CCCustom<"CC_Sparc_Assign_f64">>,
+
+  // Alternatively, they are assigned to the stack in 4-byte aligned units.
+  CCAssignToStack<4, 4>
+]>;