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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27076 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2006-03-24 19:59:17 +00:00
parent 43fbbc36dc
commit e6cd96d467
1 changed files with 12 additions and 0 deletions
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lib/Target/README.txt
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@ -138,3 +138,15 @@ And teach the dag combiner enough to simplify the code expanded before
legalize. It seems plausible that this knowledge would let it simplify other
stuff too.
//===---------------------------------------------------------------------===//
The loop unroller should be enhanced to be able to unroll loops that aren't
single basic blocks. It should be able to handle stuff like this:
for (i = 0; i < c1; ++i)
if (c2 & (1 << i))
foo
where c1/c2 are constants.