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| author | Nicolai Haehnle <nhaehnle@gmail.com> | 2018-03-09 12:24:30 +0000 |
|---|---|---|
| committer | Nicolai Haehnle <nhaehnle@gmail.com> | 2018-03-09 12:24:30 +0000 |
| commit | 8aa9d5839dbb4d457616a935eb2167ceb0087dfa (patch) | |
| tree | e5febda9150690cc52ae82ecb324b0447fb0c781 /llvm/docs/TableGen/LangRef.rst | |
| parent | 2435855abe6ccb1cd874f0e5e699815a2697b73d (diff) | |
| download | bcm5719-llvm-8aa9d5839dbb4d457616a935eb2167ceb0087dfa.tar.gz bcm5719-llvm-8aa9d5839dbb4d457616a935eb2167ceb0087dfa.zip | |
TableGen: Allow arbitrary list values as ranges of foreach
The changes to FieldInit are required to make field references (Def.field)
work inside a ForeachDeclaration: previously, Def.field wasn't resolved
immediately when Def was already a fully resolved DefInit.
Change-Id: I9875baec2fc5aac8c2b249e45b9cf18c65ae699b
llvm-svn: 327120
Diffstat (limited to 'llvm/docs/TableGen/LangRef.rst')
| -rw-r--r-- | llvm/docs/TableGen/LangRef.rst | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/docs/TableGen/LangRef.rst b/llvm/docs/TableGen/LangRef.rst index 89996f35822..702b40c9011 100644 --- a/llvm/docs/TableGen/LangRef.rst +++ b/llvm/docs/TableGen/LangRef.rst @@ -360,13 +360,17 @@ precede any ``class``'s that appear. ----------- .. productionlist:: - Foreach: "foreach" `Declaration` "in" "{" `Object`* "}" - :| "foreach" `Declaration` "in" `Object` + Foreach: "foreach" `ForeachDeclaration` "in" "{" `Object`* "}" + :| "foreach" `ForeachDeclaration` "in" `Object` + ForeachDeclaration: ID "=" ( "{" `RangeList` "}" | `RangePiece` | `Value` ) The value assigned to the variable in the declaration is iterated over and the object or object list is reevaluated with the variable set at each iterated value. +Note that the productions involving RangeList and RangePiece have precedence +over the more generic value parsing based on the first token. + Top-Level ``let`` ----------------- |
