AMDGPU: Start defining a calling convention

Partially implement callee-side for arguments and return values.
byval doesn't work properly, and most likely sret or other on-stack
return values most as well.

llvm-svn: 303308

1 files changed, 1 insertions, 16 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp b/llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp
index fe7283ccf7d..9fb7f5f8892 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp
@@ -12,21 +12,6 @@
 
 using namespace llvm;
 
-static bool isEntryFunctionCC(CallingConv::ID CC) {
-  switch (CC) {
-  case CallingConv::AMDGPU_KERNEL:
-  case CallingConv::SPIR_KERNEL:
-  case CallingConv::AMDGPU_VS:
-  case CallingConv::AMDGPU_HS:
-  case CallingConv::AMDGPU_GS:
-  case CallingConv::AMDGPU_PS:
-  case CallingConv::AMDGPU_CS:
-    return true;
-  default:
-    return false;
-  }
-}
-
 AMDGPUMachineFunction::AMDGPUMachineFunction(const MachineFunction &MF) :
   MachineFunctionInfo(),
   LocalMemoryObjects(),
@@ -34,7 +19,7 @@ AMDGPUMachineFunction::AMDGPUMachineFunction(const MachineFunction &MF) :
   MaxKernArgAlign(0),
   LDSSize(0),
   ABIArgOffset(0),
-  IsEntryFunction(isEntryFunctionCC(MF.getFunction()->getCallingConv())),
+  IsEntryFunction(AMDGPU::isEntryFunctionCC(MF.getFunction()->getCallingConv())),
   NoSignedZerosFPMath(MF.getTarget().Options.NoSignedZerosFPMath) {
   // FIXME: Should initialize KernArgSize based on ExplicitKernelArgOffset,
   // except reserved size is not correctly aligned.