Check in some #ifdef'd out code switching call argument

lowering over to SparcCallingConv.td.  We can't make the switch
yet because we can't say to pass f64 registers in 2 x i32 registers
with the td file yet.

llvm-svn: 48449

1 files changed, 9 insertions, 0 deletions

diff --git a/llvm/lib/Target/Sparc/SparcCallingConv.td b/llvm/lib/Target/Sparc/SparcCallingConv.td
index 02d24397e6d..dc0bf8e3122 100644
--- a/llvm/lib/Target/Sparc/SparcCallingConv.td
+++ b/llvm/lib/Target/Sparc/SparcCallingConv.td
@@ -21,3 +21,12 @@ def RetCC_Sparc32 : CallingConv<[
   CCIfType<[f32], CCAssignToReg<[F0]>>,
   CCIfType<[f64], CCAssignToReg<[D0]>>
 ]>;
+
+// 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]>>,
+  
+  // Alternatively, they are assigned to the stack in 4-byte aligned units.
+  CCAssignToStack<4, 4>
+]>;