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Add range for-loop iterator adapter for cases in SwitchInst.

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Patch by Marcello Maggioni, reviewed by Reid Kleckner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212163 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2014-07-02 05:32:13 +00:00
parent 8f9108459e
commit 90fdedc064
1 changed files with 14 additions and 0 deletions
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14
include/llvm/IR/Instructions.h
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@ -2661,6 +2661,9 @@ public:
assert(RHS.SI == SI && "Incompatible operators."); assert(RHS.SI == SI && "Incompatible operators.");
return RHS.Index != Index; return RHS.Index != Index;
} }
Self &operator*() {
return *this;
}
}; };
typedef CaseIteratorT<const SwitchInst, const ConstantInt, const BasicBlock> typedef CaseIteratorT<const SwitchInst, const ConstantInt, const BasicBlock>
@ -2741,6 +2744,17 @@ public:
ConstCaseIt case_end() const { ConstCaseIt case_end() const {
return ConstCaseIt(this, getNumCases()); return ConstCaseIt(this, getNumCases());
} }
/// cases - iteration adapter for range-for loops.
iterator_range<CaseIt> cases() {
return iterator_range<CaseIt>(case_begin(), case_end());
}
/// cases - iteration adapter for range-for loops.
iterator_range<ConstCaseIt> cases() const {
return iterator_range<ConstCaseIt>(case_begin(), case_end());
}
/// Returns an iterator that points to the default case. /// Returns an iterator that points to the default case.
/// Note: this iterator allows to resolve successor only. Attempt /// Note: this iterator allows to resolve successor only. Attempt
/// to resolve case value causes an assertion. /// to resolve case value causes an assertion.