1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Target/Sparc/SparcCallingConv.td b/lib/Target/Sparc/SparcCallingConv.td
index 33ecfdf..ed610a3 100644
--- a/lib/Target/Sparc/SparcCallingConv.td
+++ b/lib/Target/Sparc/SparcCallingConv.td
@@ -24,9 +24,11 @@ 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]>>,
-  
+  // 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>
 ]>;