https://bugs.llvm.org/show_bug.cgi?id=47073
Bug ID: 47073
Summary: In the for-range statement, erase() should not be used
to remove the elements which the loop iterates
over.(Potential
defects)（llvm-project/llvm/utils/TableGen/CodeGenDAGPa
tterns.cpp:line 59 and line 771）
Product: libraries
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Object
Assignee: unassignedb...@nondot.org
Reporter: i...@ustchcs.com
CC: llvm-bugs@lists.llvm.org
In the for-range statement, erase() should not be used to remove the elements
which the loop iterates over.(Potential defects)
commit e3546c78cabfbf670391a57766872f0a8e28a423
llvm-project/llvm/utils/TableGen/CodeGenDAGPatterns.cpp:line 59
55 for (MVT T : S) {
56 if (!P(T))
57 continue;
58 Erased = true;
59 S.erase(T);
60 }
61 return Erased;
62 }
llvm-project/llvm/utils/TableGen/CodeGenDAGPatterns.cpp:line 771
764 std::set<MVT> Ovs;
765 for (MVT T : Out) {
766 if (!T.isOverloaded())
767 continue;
768
769 Ovs.insert(T);
770 // MachineValueTypeSet allows iteration and erasing.
771 Out.erase(T);
772 }
Reported by: Ustchcs Toolsets Bugfinder
(bugfinder-13.15: In the for-range statement, erase() should not be used to
remove the elements which the loop iterates over.)
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