Add XCore intrinsic for eeu instruction.

[oota-llvm.git] / lib / Target / Mips / MipsCallingConv.td

diff --git a/lib/Target/Mips/MipsCallingConv.td b/lib/Target/Mips/MipsCallingConv.td
index 23ef8503d386317cb788fa920a959e312d9459da..8f313efaf8daa701eaa03cc9be9694c7e14e578b 100644 (file)
--- a/lib/Target/Mips/MipsCallingConv.td
+++ b/lib/Target/Mips/MipsCallingConv.td
@@ -1,9 +1,9 @@
-//===- MipsCallingConv.td - Calling Conventions for Mips --------*- C++ -*-===//
+//===- MipsCallingConv.td - Calling Conventions for Mips ---*- tablegen -*-===//
 // 
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Bruno Cardoso Lopes and is distributed under the 
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 // 
 //===----------------------------------------------------------------------===//
 // This describes the calling conventions for Mips architecture.
@@ -14,26 +14,73 @@ class CCIfSubtarget<string F, CCAction A>:
   CCIf<!strconcat("State.getTarget().getSubtarget<MipsSubtarget>().", F), A>;
 
 //===----------------------------------------------------------------------===//
-// Mips Return Value Calling Convention
+// Mips O32 Calling Convention
 //===----------------------------------------------------------------------===//
-def RetCC_Mips : CallingConv<[
+
+// 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]>>
-]>;
+  CCIfType<[i32], CCAssignToReg<[V0, V1]>>,
 
+  // f32 are returned in registers F0, F2
+  CCIfType<[f32], CCAssignToReg<[F0, F2]>>,
+
+  // f64 are returned in register D0, D1
+  CCIfType<[f64], CCIfSubtarget<"isNotSingleFloat()", CCAssignToReg<[D0, D1]>>>
+]>;
 
 //===----------------------------------------------------------------------===//
-// Mips Argument Calling Conventions
+// Mips EABI Calling Convention
 //===----------------------------------------------------------------------===//
-def CC_Mips : CallingConv<[
+
+def CC_MipsEABI : 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 arguments are passed in integer registers.
+  CCIfType<[i32], CCAssignToReg<[A0, A1, A2, A3, T0, T1, T2, T3]>>,
+
+  // Single fp arguments are passed in pairs within 32-bit mode 
+  CCIfType<[f32], CCIfSubtarget<"isSingleFloat()", 
+                  CCAssignToReg<[F12, F13, F14, F15, F16, F17, F18, F19]>>>,
+
+  CCIfType<[f32], CCIfSubtarget<"isNotSingleFloat()", 
+                  CCAssignToReg<[F12, F14, F16, F18]>>>,
+
+  // The first 4 doubl fp arguments are passed in single fp registers.
+  CCIfType<[f64], CCIfSubtarget<"isNotSingleFloat()", 
+                  CCAssignToReg<[D6, D7, D8, D9]>>>,
 
   // Integer values get stored in stack slots that are 4 bytes in
   // size and 4-byte aligned.
-  CCIfType<[i32], CCAssignToStack<4, 4>>
+  CCIfType<[i32, f32], CCAssignToStack<4, 4>>,
+
+  // Integer values get stored in stack slots that are 8 bytes in
+  // size and 8-byte aligned.
+  CCIfType<[f64], CCIfSubtarget<"isNotSingleFloat()", CCAssignToStack<8, 8>>>
+]>;
+
+def RetCC_MipsEABI : 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]>>,
+
+  // f64 are returned in register D0
+  CCIfType<[f64], CCIfSubtarget<"isNotSingleFloat()", CCAssignToReg<[D0]>>>
+]>;
+
+//===----------------------------------------------------------------------===//
+// Mips Calling Convention Dispatch
+//===----------------------------------------------------------------------===//
+
+def CC_Mips : CallingConv<[
+  CCIfSubtarget<"isABI_EABI()", CCDelegateTo<CC_MipsEABI>>
 ]>;
 
+def RetCC_Mips : CallingConv<[
+  CCIfSubtarget<"isABI_EABI()", CCDelegateTo<RetCC_MipsEABI>>,
+  CCDelegateTo<RetCC_MipsO32>
+]>;