Duncan Sands 6f1d799415 Eliminate switch cases that can never match, for example removes all ...

negative switch cases if the branch condition is known to be positive.
Inspired by a recent improvement to GCC's VRP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152405 91177308-0d34-0410-b5e6-96231b3b80d8

2012-03-09 13:45:18 +00:00

..

2010-09-02-Trunc.ll

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2010-09-26-MergeConstantRange.ll

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basic.ll

Eliminate switch cases that can never match, for example removes all

2012-03-09 13:45:18 +00:00

crash.ll

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lit.local.cfg

Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.

2012-02-16 06:28:33 +00:00

non-null.ll

Test for lazy value info's ability to prove the absense of NULLs in pointers.

2011-01-16 21:57:20 +00:00

range.ll

LVI: Recognize the form instcombine canonicalizes range checks into when forming constant ranges.

2012-03-02 15:34:43 +00:00