Silence a warning on gcc 13 #108
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GCC 13 produced a warning that:
.../llvm-dialects/lib/TableGen/Evaluator.cpp:653:31: warning: possibly dangling reference to a temporary [-Wdangling-reference]
653 | const ConstraintSystem &childSystem = logicOr->branches()[i];
| ^~~~~~~~~~~
.../llvm-dialects/lib/TableGen/Evaluator.cpp:653:66: note: the temporary was destroyed at the end of the full expression ‘logicOr->llvm_dialects::LogicOr::branches().llvm::ArrayRef<llvm_dialects::ConstraintSystem>::operator[](((size_t)i))’
653 | const ConstraintSystem &childSystem = logicOr->branches()[i];
| ^
This warning seems wrong. The temporary ArrayRef returned by LogicOr::branches()
is destroyed, yes, but the reference returned by operator[] isn't a
reference into the ArrayRef itself, so it shouldn't matter.
Oh well. Using a for-each loop is nicer anyway.
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GCC 13 produced a warning that:
.../llvm-dialects/lib/TableGen/Evaluator.cpp:653:31: warning: possibly dangling reference to a temporary [-Wdangling-reference]
653 | const ConstraintSystem &childSystem = logicOr->branches()[i];
| ^~~~~~~~~~~
.../llvm-dialects/lib/TableGen/Evaluator.cpp:653:66: note: the temporary was destroyed at the end of the full expression ‘logicOr->llvm_dialects::LogicOr::branches().llvm::ArrayRef<llvm_dialects::ConstraintSystem>::operator’
653 | const ConstraintSystem &childSystem = logicOr->branches()[i];
| ^
This warning seems wrong. The temporary ArrayRef returned by LogicOr::branches() is destroyed, yes, but the reference returned by operator[] isn't a reference into the ArrayRef itself, so it shouldn't matter.
Oh well. Using a for-each loop is nicer anyway.