-//===- MipsCallingConv.td - Calling Conventions for Mips --------*- C++ -*-===//
+//===- MipsCallingConv.td - Calling Conventions for Mips ---*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
//===----------------------------------------------------------------------===//
// Mips O32 Calling Convention
//===----------------------------------------------------------------------===//
-def CC_MipsO32 : CallingConv<[
- // Promote i8/i16 arguments to i32.
- CCIfType<[i8, i16], CCPromoteToType<i32>>,
-
- // The first 4 integer arguments are passed in integer registers.
- CCIfType<[i32], CCAssignToReg<[A0, A1, A2, A3]>>,
-
- // Integer values get stored in stack slots that are 4 bytes in
- // size and 4-byte aligned.
- CCIfType<[i32], CCAssignToStack<4, 4>>
-]>;
+// Only the return rules are defined here for O32. The rules for argument
+// passing are defined in MipsISelLowering.cpp.
def RetCC_MipsO32 : CallingConv<[
// i32 are returned in registers V0, V1
CCIfType<[i32], CCAssignToReg<[V0, V1]>>,
- // f32 are returned in registers F0, F1
- CCIfType<[f32], CCAssignToReg<[F0, F1]>>,
+ // f32 are returned in registers F0, F2
+ CCIfType<[f32], CCAssignToReg<[F0, F2]>>,
- // f64 are returned in register D0
- CCIfType<[f64], CCIfSubtarget<"isNotSingleFloat()", CCAssignToReg<[D0]>>>
+ // f64 are returned in register D0, D1
+ CCIfType<[f64], CCIfSubtarget<"isNotSingleFloat()", CCAssignToReg<[D0, D1]>>>
]>;
//===----------------------------------------------------------------------===//
// Mips EABI Calling Convention
//===----------------------------------------------------------------------===//
+
def CC_MipsEABI : CallingConv<[
// Promote i8/i16 arguments to i32.
CCIfType<[i8, i16], CCPromoteToType<i32>>,
//===----------------------------------------------------------------------===//
def CC_Mips : CallingConv<[
- CCIfSubtarget<"isABI_EABI()", CCDelegateTo<CC_MipsEABI>>,
- CCDelegateTo<CC_MipsO32>
+ CCIfSubtarget<"isABI_EABI()", CCDelegateTo<CC_MipsEABI>>
]>;
def RetCC_Mips : CallingConv<[