Use uint16_t to store register overlaps to reduce static data.

[oota-llvm.git] / lib / Target / Sparc / SparcCallingConv.td

diff --git a/lib/Target/Sparc/SparcCallingConv.td b/lib/Target/Sparc/SparcCallingConv.td
index 33ecfdf5f7501a35fffef29f133513890bcfb3e5..d4712208126ff8d5b138d98f6205ce2a886cd7eb 100644 (file)
--- a/lib/Target/Sparc/SparcCallingConv.td
+++ b/lib/Target/Sparc/SparcCallingConv.td
@@ -1,10 +1,10 @@
-//===- SparcCallingConv.td - Calling Conventions Sparc -----*- tablegen -*-===//
-// 
+//===-- SparcCallingConv.td - Calling Conventions Sparc ----*- tablegen -*-===//
+//
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
-// 
+//
 //===----------------------------------------------------------------------===//
 //
 // This describes the calling conventions for the Sparc architectures.
@@ -24,9 +24,13 @@ def RetCC_Sparc32 : CallingConv<[
 
 // Sparc 32-bit C Calling convention.
 def CC_Sparc32 : CallingConv<[
-  // All arguments get passed in integer registers if there is space.
-  CCIfType<[i32, f32, f64], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>,
-  
+  //Custom assign SRet to [sp+64].
+  CCIfSRet<CCCustom<"CC_Sparc_Assign_SRet">>,
+  // i32 f32 arguments get passed in integer registers if there is space.
+  CCIfType<[i32, f32], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>,
+  // f64 arguments are split and passed through registers or through stack.
+  CCIfType<[f64], CCCustom<"CC_Sparc_Assign_f64">>,
+
   // Alternatively, they are assigned to the stack in 4-byte aligned units.
   CCAssignToStack<4, 4>
 ]>;