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36 lines
1.3 KiB
TableGen
36 lines
1.3 KiB
TableGen
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//===- HexagonCallingConv.td - Calling Conventions Hexagon -*- tablegen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This describes the calling conventions for the Hexagon architectures.
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Return Value Calling Conventions
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//===----------------------------------------------------------------------===//
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// Hexagon 32-bit C return-value convention.
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def RetCC_Hexagon32 : CallingConv<[
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CCIfType<[i32], CCAssignToReg<[R0, R1, R2, R3, R4, R5]>>,
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CCIfType<[i64], CCAssignToReg<[D0, D1, D2]>>,
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// Alternatively, they are assigned to the stack in 4-byte aligned units.
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CCAssignToStack<4, 4>
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]>;
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// Hexagon 32-bit C Calling convention.
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def CC_Hexagon32 : CallingConv<[
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// All arguments get passed in integer registers if there is space.
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CCIfType<[i32, i16, i8], CCAssignToReg<[R0, R1, R2, R3, R4, R5]>>,
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CCIfType<[i64], CCAssignToReg<[D0, D1, D2]>>,
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// Alternatively, they are assigned to the stack in 4-byte aligned units.
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CCAssignToStack<4, 4>
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]>;
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