GISelWorkList.h: Fix -fmodules build in rL318210.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318275 91177308-0d34-0410-b5e6-96231b3b80d8
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NAKAMURA Takumi 2017-11-15 07:34:35 +00:00
parent 45ed11f7a6
commit adf7d53473

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@ -16,6 +16,8 @@
namespace llvm {
class MachineInstr;
// Worklist which mostly works similar to InstCombineWorkList, but on MachineInstrs.
// The main difference with something like a SetVector is that erasing an element doesn't
// move all elements over one place - instead just nulls out the element of the vector.