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Implement a correct copy constructor for Record. Now that we're using the ID number as a key in maps (for determinism), it is imperative that ID numbers be globally unique, even when we copy construct a Record.

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This fixes some obscure failure cases involving registers defined inside multiclasses or foreach constructs that would not receive a unique ID, and would end up being omitted from the AsmMatcher tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164251 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2012-09-19 21:34:18 +00:00
parent d40d4c34f7
commit cdac1be34a
1 changed files with 8 additions and 0 deletions
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8
include/llvm/TableGen/Record.h
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@ -1328,6 +1328,14 @@ public:
TrackedRecords(records), TheInit(0) {
init();
}
// When copy-constructing a Record, we must still guarantee a globally unique
// ID number. All other fields can be copied normally.
Record(const Record &O) :
ID(LastID++), Name(O.Name), Locs(O.Locs), TemplateArgs(O.TemplateArgs),
Values(O.Values), SuperClasses(O.SuperClasses),
TrackedRecords(O.TrackedRecords), TheInit(O.TheInit) { }
~Record() {}