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diff --git a/llvm/lib/Target/AMDGPU/AMDILCallingConv.td b/llvm/lib/Target/AMDGPU/AMDILCallingConv.td
new file mode 100644
index 00000000000..371d02a2e6e
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+++ b/llvm/lib/Target/AMDGPU/AMDILCallingConv.td
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+//===- AMDILCallingConv.td - Calling Conventions AMDIL -----*- 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 AMDIL architectures.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// Return Value Calling Conventions
+//===----------------------------------------------------------------------===//
+
+// AMDIL 32-bit C return-value convention.
+def RetCC_AMDIL32 : CallingConv<[
+ // Since IL has no return values, all values can be emulated on the stack
+ // The stack can then be mapped to a number of sequential virtual registers
+ // in IL
+
+ // Integer and FP scalar values get put on the stack at 16-byte alignment
+ // but with a size of 4 bytes
+ CCIfType<[i32, f32], CCAssignToReg<
+ [
+ R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20
+]> >, CCAssignToStack<16, 16>]>;
+
+// AMDIL 32-bit C Calling convention.
+def CC_AMDIL32 : CallingConv<[
+  // Since IL has parameter values, all values can be emulated on the stack
+ // The stack can then be mapped to a number of sequential virtual registers
+ // in IL
+ // Integer and FP scalar values get put on the stack at 16-byte alignment
+ // but with a size of 4 bytes
+ // Integer and FP scalar values get put on the stack at 16-byte alignment
+ // but with a size of 4 bytes
+ CCIfType<[i32, f32], CCAssignToReg<
+[R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20
+]> >, CCAssignToStack<16, 16>]>;