[llvm] [DAGCombiner] Fold setcc of trunc, generalizing some NVPTX isel logic (PR #150270)

[Alex MacLean via llvm-commits]

================
@@ -17,6 +17,7 @@
 #include "llvm/CodeGen/Analysis.h"
 #include "llvm/CodeGen/CallingConvLower.h"
 #include "llvm/CodeGen/CodeGenCommonISel.h"
+#include "llvm/CodeGen/ISDOpcodes.h"
----------------
AlexMaclean wrote:

My IDE automatically added this. You're correct we're getting this transitively through other headers but I'd lean towards including it here explicitly as well so if those headers ever change we're not broken here. I don't have strong feelings about this though so if you think it should be removed I'm happy to do so. 

https://github.com/llvm/llvm-project/pull/150270