[clang] [llvm] [NVPTX] Revamp NVVMIntrRange pass (PR #94422)

[Alex MacLean via cfe-commits]

================
@@ -1,50 +1,51 @@
-//===- NVVMIntrRange.cpp - Set !range metadata for NVVM intrinsics --------===//
+//===- NVVMIntrRange.cpp - Set range attributes for NVVM intrinsics -------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
-// This pass adds appropriate !range metadata for calls to NVVM
+// This pass adds appropriate range attributes for calls to NVVM
 // intrinsics that return a limited range of values.
 //
 //===----------------------------------------------------------------------===//
 
 #include "NVPTX.h"
-#include "llvm/IR/Constants.h"
+#include "NVPTXUtilities.h"
 #include "llvm/IR/InstIterator.h"
 #include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/IntrinsicsNVPTX.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Support/CommandLine.h"
+#include <cstdint>
 
 using namespace llvm;
 
 #define DEBUG_TYPE "nvvm-intr-range"
 
 namespace llvm { void initializeNVVMIntrRangePass(PassRegistry &); }
 
-// Add !range metadata based on limits of given SM variant.
+// Add range attributes based on limits of given SM variant.
 static cl::opt<unsigned> NVVMIntrRangeSM("nvvm-intr-range-sm", cl::init(20),
----------------
AlexMaclean wrote:

I just went ahead and removed the SM logic from this pass altogether, all it is doing is reducing a single range for `sm_20`. I think it is fine to give up some small chance of improving perf on this architecture. 

https://github.com/llvm/llvm-project/pull/94422