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Chris Lattner
a3ac88d8ab
When emitting implicit use/def lists, only emit each unique list once. Though
LLVM is able to merge identical static const globals, GCC isn't, and this caused some bloat in the generated data. This has a marginal effect on PPC, shrinking the implicit sets from 10->4, but shrinks X86 from 179 to 23, a much bigger reduction. This should speed up the register allocator as well by reducing the dcache footprint for this static data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22879 91177308-0d34-0410-b5e6-96231b3b80d8
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