llvm/test/Transforms/IndVarSimplify, branch release_31

Convert -indvars tests that rely on SCEV expansion to -loop-reduce tests.

2012-03-22T17:10:07Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153259 91177308-0d34-0410-b5e6-96231b3b80d8

Remove tests: indvars trivially preserves GEPs now.

2012-03-22T17:09:46Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153258 91177308-0d34-0410-b5e6-96231b3b80d8

Remove test: trivial canonical IV test which is covered by other SCEV tests.

2012-03-22T17:09:34Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153257 91177308-0d34-0410-b5e6-96231b3b80d8

Remove redundant -enable-iv-rewrite=false flags from test cases.

2012-03-22T17:09:04Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153255 91177308-0d34-0410-b5e6-96231b3b80d8

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.

2012-02-16T06:28:33Z

Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8

Extended replaceCongruentPhis to handle mixed phi types.

2012-01-07T01:12:09Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147707 91177308-0d34-0410-b5e6-96231b3b80d8

Reenable this IndVars unit test.

2011-11-29T00:52:04Z

SCEV can't optimize undef in all cases, which is a separate issue from this test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145343 91177308-0d34-0410-b5e6-96231b3b80d8

Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.

2011-11-27T06:54:59Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145171 91177308-0d34-0410-b5e6-96231b3b80d8

XFAIL this test until I figure out what indvars is doing here (or find someone who does)

2011-11-20T11:10:03Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145008 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an overly general check in SimplifyIndvar to handle useless phi cycles.

2011-11-17T23:36:35Z

The right way to check for a binary operation is cast. The original check: cast && numOperands() == 2 would match phi "instructions", leading to an infinite loop in extreme corner case: a useless phi with operands [self, constant] that prior optimization passes failed to remove, being used in the loop by another useless phi, in turn being used by an lshr or udiv. Fixes PR11350: runaway iteration assertion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144935 91177308-0d34-0410-b5e6-96231b3b80d8