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add note about possible GEP improvement with fields of size 0.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62925 91177308-0d34-0410-b5e6-96231b3b80d8
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Torok Edwin 2009-01-24 19:30:25 +00:00
parent 54e853a779
commit e46a686dc2
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6
lib/Target/README.txt
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@ -1683,3 +1683,9 @@ Always foldable for odd constants, what is the rule for even?
//===---------------------------------------------------------------------===//
PR 3381: GEP to field of size 0 inside a struct could be turned into GEP
for next field in struct (which is at same address).
For example: store of float into { {{}}, float } could be turned into a store to
the float directly.