[llvm] [Matrix] Use data layout index type for lowering matrix intrinsics (PR #162646)

[Florian Hahn via llvm-commits]

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@@ -633,18 +644,16 @@ class LowerMatrixIntrinsics {
       if (Found != Inst2ColumnMatrix.end()) {
         // FIXME: re: "at least": SplitVecs.size() doesn't count the shuffles
         // that embedInVector created.
-        LLVM_DEBUG(dbgs() << "matrix reshape from " << Found->second.shape()
-                          << " to " << SI << " using at least "
-                          << SplitVecs.size() << " shuffles on behalf of:\n"
-                          << *Inst << '\n');
+        LDBG() << "matrix reshape from " << Found->second.shape() << " to "
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fhahn wrote:

`LLVM_DEBUG` is used almost everywhere in `llvm/` (expect in single file). Better to keep consistent with the existing practice.

https://github.com/llvm/llvm-project/pull/162646