SparcCallingConv.td revision 249423
1224133Sdim//===-- SparcCallingConv.td - Calling Conventions Sparc ----*- tablegen -*-===// 2224133Sdim// 3224133Sdim// The LLVM Compiler Infrastructure 4224133Sdim// 5224133Sdim// This file is distributed under the University of Illinois Open Source 6224133Sdim// License. See LICENSE.TXT for details. 7224133Sdim// 8224133Sdim//===----------------------------------------------------------------------===// 9224133Sdim// 10224133Sdim// This describes the calling conventions for the Sparc architectures. 11224133Sdim// 12224133Sdim//===----------------------------------------------------------------------===// 13224133Sdim 14224133Sdim//===----------------------------------------------------------------------===// 15224133Sdim// Return Value Calling Conventions 16224133Sdim//===----------------------------------------------------------------------===// 17224133Sdim 18224133Sdim// Sparc 32-bit C return-value convention. 19224133Sdimdef RetCC_Sparc32 : CallingConv<[ 20224133Sdim CCIfType<[i32], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>, 21224133Sdim CCIfType<[f32], CCAssignToReg<[F0, F1, F2, F3]>>, 22224133Sdim CCIfType<[f64], CCAssignToReg<[D0, D1]>> 23249423Sdim]>; 24224133Sdim 25224133Sdim// Sparc 64-bit C return-value convention. 26224133Sdimdef RetCC_Sparc64 : CallingConv<[ 27224133Sdim CCIfType<[i32], CCPromoteToType<i64>>, 28239462Sdim CCIfType<[i64], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>, 29224133Sdim CCIfType<[f32], CCAssignToReg<[F0, F1, F2, F3]>>, 30224133Sdim CCIfType<[f64], CCAssignToReg<[D0, D1]>> 31224133Sdim]>; 32224133Sdim 33224133Sdim// Sparc 32-bit C Calling convention. 34224133Sdimdef CC_Sparc32 : CallingConv<[ 35224133Sdim //Custom assign SRet to [sp+64]. 36224133Sdim CCIfSRet<CCCustom<"CC_Sparc_Assign_SRet">>, 37224133Sdim // i32 f32 arguments get passed in integer registers if there is space. 38224133Sdim CCIfType<[i32, f32], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>, 39239462Sdim // f64 arguments are split and passed through registers or through stack. 40263508Sdim CCIfType<[f64], CCCustom<"CC_Sparc_Assign_f64">>, 41263508Sdim 42263508Sdim // Alternatively, they are assigned to the stack in 4-byte aligned units. 43224133Sdim CCAssignToStack<4, 4> 44224133Sdim]>; 45239462Sdim 46224133Sdim// Sparc 64-bit C Calling convention. 47224133Sdimdef CC_Sparc64 : CallingConv<[ 48224133Sdim // All integers are promoted to i64 by the caller. 49224133Sdim CCIfType<[i32], CCPromoteToType<i64>>, 50224133Sdim // Integer arguments get passed in integer registers if there is space. 51224133Sdim CCIfType<[i64], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>, 52224133Sdim // FIXME: Floating point arguments. 53243830Sdim 54239462Sdim // Alternatively, they are assigned to the stack in 8-byte aligned units. 55263508Sdim CCAssignToStack<8, 8> 56263508Sdim]>; 57263508Sdim