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[mlir] Fix possible null dereference during error logging in EmitC #157456

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Merged
merged 3 commits into from
Sep 15, 2025
Merged

[mlir] Fix possible null dereference during error logging in EmitC #157456

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5b13110
[mlir] Fix possible null dereference during error logging in Dialect/…
apach301 Sep 8, 2025
2cea9f4
Improve error message
apach301 Sep 9, 2025
1734346
[mlir][emitc] Add a test for invalid lvalue for get_global_op
apach301 Sep 15, 2025
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6 changes: 5 additions & 1 deletion mlir/lib/Dialect/EmitC/IR/EmitC.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1320,7 +1320,11 @@ GetGlobalOp::verifySymbolUses(SymbolTableCollection &symbolTable) {

// global has non-array type
auto lvalueType = dyn_cast<LValueType>(resultType);
if (!lvalueType || lvalueType.getValueType() != globalType)
if (!lvalueType)
return emitOpError("on non-array type result type is not defined "
"for the global @")
<< getName();
if (lvalueType.getValueType() != globalType)
return emitOpError("on non-array type expects result inner type ")
<< lvalueType.getValueType() << " to match type " << globalType
<< " of the global @" << getName();
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