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move isOnlyReachableByFallthrough out of MachineBasicBlock into AsmPrinter,

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and add a sparc implementation that knows about delay slots.  Patch by
Nathan Keynes!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96492 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-02-17 18:52:56 +00:00
parent 7180f10fc7
commit 0a3f39985b
6 changed files with 75 additions and 37 deletions
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5
include/llvm/CodeGen/MachineBasicBlock.h
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@ -285,11 +285,6 @@ public:
/// it returns end()
iterator getFirstTerminator();
/// isOnlyReachableViaFallthough - Return true if this basic block has
/// exactly one predecessor and the control transfer mechanism between
/// the predecessor and this block is a fall-through.
bool isOnlyReachableByFallthrough() const;
void pop_front() { Insts.pop_front(); }
void pop_back() { Insts.pop_back(); }
void push_back(MachineInstr *MI) { Insts.push_back(MI); }