[MLIR] Replace LLVM_Type in bar.warp.sync and cp.async ops with I32 (llvm#167826)

This patch replaces generic `LLVM_Type` with specific `I32` type in NVVM
operations.

`NVVM_SyncWarpOp`: Change mask parameter from `LLVM_Type` to `I32`.
`NVVM_CpAsyncOp`: Change cpSize parameter from `Optional<LLVM_Type>` to
`Optional<I32>`.

Signed-off-by: Dharuni R Acharya <[email protected]>

Author: DharuniRAcharya

mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td

@@ -1387,7 +1387,7 @@ def NVVM_VoteSyncOp
 
 def NVVM_SyncWarpOp :
   NVVM_Op<"bar.warp.sync">,
-  Arguments<(ins LLVM_Type:$mask)> {
+  Arguments<(ins I32:$mask)> {
   let summary = "Warp Barrier Synchronization Op";
   let description = [{
     The `nvvm.bar.warp.sync` operation performs barrier synchronization for threads 
@@ -1473,7 +1473,7 @@ def NVVM_CpAsyncOp : NVVM_Op<"cp.async.shared.global">,
                  LLVM_PointerGlobal:$src,
                  I32Attr:$size,
                  LoadCacheModifierAttr:$modifier,
-                 Optional<LLVM_Type>:$cpSize)> {
+                 Optional<I32>:$cpSize)> {
   let assemblyFormat = "$dst `,` $src `,` $size `,` `cache` `=` $modifier (`,` $cpSize^)? attr-dict `:` type(operands)";
   let hasVerifier = 1;
   let extraClassDeclaration = [{