[llvm-commits] [llvm] r52223 - in /llvm/trunk: lib/Transforms/Scalar/TailDuplication.cpp test/Transforms/TailDup/2008-06-11-AvoidDupLoopHeader.ll
clattner at apple.com
Wed Jun 11 23:18:11 PDT 2008
On Jun 11, 2008, at 12:07 PM, Evan Cheng wrote:
> URL: http://llvm.org/viewvc/llvm-project?rev=52223&view=rev
> Avoid duplicating loop header which leads to unnatural loops (and
> just seem like general badness to me, likely to cause code explosion).
> Patch by Florian Brandner.
What is the compile time impact of this? How about identifying loop
headers with a simple DFS walk?
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