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Override use_back in instruction/basicblock to provide more type information.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30678 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2006-09-30 22:20:34 +00:00
parent adc95467e4
commit cb4f10b4d5
2 changed files with 10 additions and 1 deletions
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5
include/llvm/BasicBlock.h
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@@ -85,6 +85,11 @@ public:
BasicBlock *getPrev() { return Prev; }
const BasicBlock *getPrev() const { return Prev; }
/// use_back - Specialize the methods defined in Value, as we know that an
/// BasicBlock can only be used by Instructions (specifically PHI and terms).
Instruction *use_back() { return cast<Instruction>(*use_begin());}
const Instruction *use_back() const { return cast<Instruction>(*use_begin());}
/// getTerminator() - If this is a well formed basic block, then this returns
/// a pointer to the terminator instruction. If it is not, then you get a
/// null pointer back.