[NVPTX] Remove i8 register class. PTX support for i8 (.b8, .u8, .s8) …

…is rather poor and we're better off just ignoring it and letting LLVM expand all i8 ops out to i16.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185174 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/IR/IntrinsicsNVVM.td

@@ -861,8 +861,6 @@ def int_nvvm_ptr_gen_to_param: Intrinsic<[llvm_anyptr_ty],
 
 // Move intrinsics, used in nvvm internally
 
-def int_nvvm_move_i8 : Intrinsic<[llvm_i8_ty], [llvm_i8_ty], [IntrNoMem],
-  "llvm.nvvm.move.i8">;
 def int_nvvm_move_i16 : Intrinsic<[llvm_i16_ty], [llvm_i16_ty], [IntrNoMem],
   "llvm.nvvm.move.i16">;
 def int_nvvm_move_i32 : Intrinsic<[llvm_i32_ty], [llvm_i32_ty], [IntrNoMem],

lib/Target/NVPTX/NVPTXAsmPrinter.cpp

@@ -2016,7 +2016,6 @@ bool NVPTXAsmPrinter::ignoreLoc(const MachineInstr &MI) {
   case NVPTX::CallArgI32:
   case NVPTX::CallArgI32imm:
   case NVPTX::CallArgI64:
-  case NVPTX::CallArgI8:
   case NVPTX::CallArgParam:
   case NVPTX::CallVoidInst:
   case NVPTX::CallVoidInstReg:
@@ -2050,7 +2049,6 @@ bool NVPTXAsmPrinter::ignoreLoc(const MachineInstr &MI) {
   case NVPTX::LastCallArgI32:
   case NVPTX::LastCallArgI32imm:
   case NVPTX::LastCallArgI64:
-  case NVPTX::LastCallArgI8:
   case NVPTX::LastCallArgParam:
   case NVPTX::LoadParamMemF32:
   case NVPTX::LoadParamMemF64:
@@ -2063,7 +2061,6 @@ bool NVPTXAsmPrinter::ignoreLoc(const MachineInstr &MI) {
   case NVPTX::LoadParamRegI16:
   case NVPTX::LoadParamRegI32:
   case NVPTX::LoadParamRegI64:
-  case NVPTX::LoadParamRegI8:
   case NVPTX::PrototypeInst:
   case NVPTX::DBG_VALUE:
     return true;