arsenm added inline comments.

================
Comment at: llvm/lib/Transforms/Utils/AMDGPUEmitPrintf.cpp:386-387
+    } else {
+      auto IntTy = dyn_cast<IntegerType>(Args[i]->getType());
+      if (IntTy && IntTy->getBitWidth() == 32)
+        WhatToStore.push_back(
----------------
vikramRH wrote:
> arsenm wrote:
> > isIntegerTy(32).
> > 
> > I also do not understand why only 32-bit integers would be promoted to 
> > 64-bit (or why this would be zext). This doesn't match varargs ABI 
> > handling, where everything smaller would be promoted to i32.
> Right, But default promotions would have happened already, this additional 
> promotion is due to runtime processing requirement
Is this documented somewhere? If it's promote everything to i64, I'd prefer to 
handle all types rather than special casing 32


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150427/new/

https://reviews.llvm.org/D150427

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