[Mlir-commits] [mlir] [MLIR][Affine]Fixed crash with invalid cachesize (Issue #64979) (PR #114722)

[Longsheng Mou]

================
@@ -173,6 +173,12 @@ void LoopTiling::getTileSizes(ArrayRef<AffineForOp> band,
 }
 
 void LoopTiling::runOnOperation() {
+  if (cacheSizeInKiB <= 0) {
+    getOperation().emitError(
----------------
CoTinker wrote:

I think use `mlir::emitError` is better, and `cacheSizeInKiB` is uint64_t, it's not less than zero. Maybe you can change it to:
```
if (cacheSizeInKiB == 0) {
  mlir::emitError(mlir::UnknownLoc::get(&Pass::getContext()),
                  "cache size cannot be 0");
}
```
And please add a test. You can refer to #68762.

https://github.com/llvm/llvm-project/pull/114722