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 c05e82d5b570b4d77fda1d5847a516d9b7180600..8f313efaf8daa701eaa03cc9be9694c7e14e578b 100644 (file)
--- a/lib/Target/Mips/MipsCallingConv.td
+++ b/lib/Target/Mips/MipsCallingConv.td
@@ -1,4 +1,4 @@
-//===- MipsCallingConv.td - Calling Conventions for Mips --------*- C++ -*-===//
+//===- MipsCallingConv.td - Calling Conventions for Mips ---*- tablegen -*-===//
 // 
 //                     The LLVM Compiler Infrastructure
 //
@@ -16,26 +16,24 @@ class CCIfSubtarget<string F, CCAction A>:
 //===----------------------------------------------------------------------===//
 // 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]>>
+  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 EABI Calling Convention
 //===----------------------------------------------------------------------===//
+
 def CC_MipsEABI : CallingConv<[
   // Promote i8/i16 arguments to i32.
   CCIfType<[i8, i16], CCPromoteToType<i32>>,
@@ -79,8 +77,7 @@ def RetCC_MipsEABI : CallingConv<[
 //===----------------------------------------------------------------------===//
 
 def CC_Mips : CallingConv<[
-  CCIfSubtarget<"isABI_EABI()", CCDelegateTo<CC_MipsEABI>>,
-  CCDelegateTo<CC_MipsO32>
+  CCIfSubtarget<"isABI_EABI()", CCDelegateTo<CC_MipsEABI>>
 ]>;
 
 def RetCC_Mips : CallingConv<[