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Resubmit an earlier patch of mine:
reduce the size of relevant "ghostly" sentinels by a pointer. This attempt now makes the compactification dependent on the configure variable LLVM_COMPACT_SENTINELS and should not cause any bootstrap failures for llvm-gcc any more. Please note that this is not yet the final version, and (as settled with Chris) I shall take out the autofoo/cmake portions in the next days. This will also lose the assertability on sentinel dereferencing and operator++, but that seems an acceptable price to pay for the simplified build logic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79938 91177308-0d34-0410-b5e6-96231b3b80d8
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@@ -47,7 +47,7 @@ template<> struct ilist_traits<Instruction>
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Instruction *ensureHead(Instruction*) const { return createSentinel(); }
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static void noteHead(Instruction*, Instruction*) {}
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private:
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mutable ilist_node<Instruction> Sentinel;
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mutable ILIST_NODE<Instruction> Sentinel;
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};
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/// This represents a single basic block in LLVM. A basic block is simply a
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