[llvm] [InstrProf] Change step from 64-bit to pointer-sized int (PR #83239)

[Jovan Dmitrović via llvm-commits]

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@@ -288,7 +288,8 @@ Value *InstrProfIncrementInst::getStep() const {
   }
   const Module *M = getModule();
   LLVMContext &Context = M->getContext();
-  return ConstantInt::get(Type::getInt64Ty(Context), 1);
+  const auto &DL = M->getDataLayout();
+  return ConstantInt::get(DL.getIntPtrType(Context), 1);
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jdmitrovic-syrmia wrote:

I see. I pushed some changes, creating additional `getStep` function for atomics. This way, we can use a larger type.

Also, I've taken the liberty of changing the existing code to use the largest legal int available instead of the 64-bit int. 

https://github.com/llvm/llvm-project/pull/83239