[PowerPC] Rip out remaining copysignl infra

Author: workingjubilee

llvm/include/llvm/IR/RuntimeLibcalls.def

@@ -289,7 +289,6 @@ HANDLE_LIBCALL(FLOOR_F64, "floor")
 HANDLE_LIBCALL(FLOOR_F80, "floorl")
 HANDLE_LIBCALL(FLOOR_F128, "floorl")
 HANDLE_LIBCALL(FLOOR_PPCF128, "floorl")
-HANDLE_LIBCALL(COPYSIGN_PPCF128, "copysignl")
 HANDLE_LIBCALL(FMIN_F32, "fminf")
 HANDLE_LIBCALL(FMIN_F64, "fmin")
 HANDLE_LIBCALL(FMIN_F80, "fminl")

llvm/lib/CodeGen/IntrinsicLowering.cpp

@@ -437,18 +437,6 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
     ReplaceFPIntrinsicWithCall(CI, "roundevenf", "roundeven", "roundevenl");
     break;
   }
-  case Intrinsic::copysign: {
-    switch (CI->getArgOperand(0)->getType()->getTypeID()) {
-    default:
-      report_fatal_error("copysign intrinsic without arch-specific floats "
-                         "reached intrinsic-to-libcall lowering");
-      break;
-    case Type::PPC_FP128TyID:
-      ReplaceCallWith("copysignl", CI, CI->arg_begin(), CI->arg_end(),
-                      Type::getFloatTy(CI->getContext()));
-    }
-    break;
-  }
   case Intrinsic::get_rounding:
      // Lower to "round to the nearest"
      if (!CI->getType()->isVoidTy())