[Mlir-commits] [mlir] [mlir][gpu] Fix crash in transform.gpu.map_nested_forall_to_threads with zero iterations (PR #170282)

[Fabian Mora]

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@@ -141,12 +141,14 @@ std::optional<int64_t> getConstantIntValue(OpFoldResult ofr) {
 std::optional<SmallVector<int64_t>>
 getConstantIntValues(ArrayRef<OpFoldResult> ofrs) {
   bool failed = false;
-  SmallVector<int64_t> res = llvm::map_to_vector(ofrs, [&](OpFoldResult ofr) {
+  SmallVector<int64_t> res;
+  res.reserve(ofrs.size());
+  for (OpFoldResult ofr : ofrs) {
     auto cv = getConstantIntValue(ofr);
     if (!cv.has_value())
       failed = true;
-    return cv.value_or(0);
-  });
+    res.push_back(cv.value_or(0));
+  }
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fabianmcg wrote:

Why this was changed?

https://github.com/llvm/llvm-project/pull/170282