[Mlir-commits] [mlir] [MLIR] fix invalid `scf.index_switch` lowering to `cf.switch` when case values are large (PR #111590)

[Matthias Springer]

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@@ -691,11 +691,14 @@ IndexSwitchLowering::matchAndRewrite(IndexSwitchOp op,
 
   // Cast switch index to integer case value.
   Value caseValue = rewriter.create<arith::IndexCastOp>(
-      op.getLoc(), rewriter.getI32Type(), op.getArg());
+      op.getLoc(), rewriter.getI64Type(), op.getArg());
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matthias-springer wrote:

Why do we have to convert `index` values at all? Can we defer this to the point where we lower to LLVM?


https://github.com/llvm/llvm-project/pull/111590