SparcCallingConv.td revision 249423
1234353Sdim//===-- SparcCallingConv.td - Calling Conventions Sparc ----*- tablegen -*-===// 2234353Sdim// 3193323Sed// The LLVM Compiler Infrastructure 4193323Sed// 5193323Sed// This file is distributed under the University of Illinois Open Source 6193323Sed// License. See LICENSE.TXT for details. 7234353Sdim// 8193323Sed//===----------------------------------------------------------------------===// 9193323Sed// 10193323Sed// This describes the calling conventions for the Sparc architectures. 11193323Sed// 12193323Sed//===----------------------------------------------------------------------===// 13193323Sed 14193323Sed//===----------------------------------------------------------------------===// 15193323Sed// Return Value Calling Conventions 16193323Sed//===----------------------------------------------------------------------===// 17193323Sed 18193323Sed// Sparc 32-bit C return-value convention. 19193323Seddef RetCC_Sparc32 : CallingConv<[ 20193323Sed CCIfType<[i32], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>, 21193323Sed CCIfType<[f32], CCAssignToReg<[F0, F1, F2, F3]>>, 22193323Sed CCIfType<[f64], CCAssignToReg<[D0, D1]>> 23193323Sed]>; 24193323Sed 25249423Sdim// Sparc 64-bit C return-value convention. 26249423Sdimdef RetCC_Sparc64 : CallingConv<[ 27249423Sdim CCIfType<[i32], CCPromoteToType<i64>>, 28249423Sdim CCIfType<[i64], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>, 29249423Sdim CCIfType<[f32], CCAssignToReg<[F0, F1, F2, F3]>>, 30249423Sdim CCIfType<[f64], CCAssignToReg<[D0, D1]>> 31249423Sdim]>; 32249423Sdim 33193323Sed// Sparc 32-bit C Calling convention. 34193323Seddef CC_Sparc32 : CallingConv<[ 35218893Sdim //Custom assign SRet to [sp+64]. 36218893Sdim CCIfSRet<CCCustom<"CC_Sparc_Assign_SRet">>, 37218893Sdim // i32 f32 arguments get passed in integer registers if there is space. 38218893Sdim CCIfType<[i32, f32], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>, 39218893Sdim // f64 arguments are split and passed through registers or through stack. 40218893Sdim CCIfType<[f64], CCCustom<"CC_Sparc_Assign_f64">>, 41218893Sdim 42193323Sed // Alternatively, they are assigned to the stack in 4-byte aligned units. 43193323Sed CCAssignToStack<4, 4> 44193323Sed]>; 45249423Sdim 46249423Sdim// Sparc 64-bit C Calling convention. 47249423Sdimdef CC_Sparc64 : CallingConv<[ 48249423Sdim // All integers are promoted to i64 by the caller. 49249423Sdim CCIfType<[i32], CCPromoteToType<i64>>, 50249423Sdim // Integer arguments get passed in integer registers if there is space. 51249423Sdim CCIfType<[i64], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>, 52249423Sdim // FIXME: Floating point arguments. 53249423Sdim 54249423Sdim // Alternatively, they are assigned to the stack in 8-byte aligned units. 55249423Sdim CCAssignToStack<8, 8> 56249423Sdim]>; 57