[clang] [mlir][sparse] Print new syntax (PR #68130)

[Aart Bik via cfe-commits]

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@@ -472,8 +472,11 @@ class SparseInsertGenerator
     llvm::raw_svector_ostream nameOstream(nameBuffer);
     nameOstream << kInsertFuncNamePrefix;
     const Level lvlRank = stt.getLvlRank();
-    for (Level l = 0; l < lvlRank; l++)
-      nameOstream << toMLIRString(stt.getLvlType(l)) << "_";
+    for (Level l = 0; l < lvlRank; l++) {
+      std::string lvlType = toMLIRString(stt.getLvlType(l));
+      replaceWithUnderscore(lvlType);
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aartbik wrote:

std::string::replace ?

https://github.com/llvm/llvm-project/pull/68130