llvm/test/Transforms/LoopStrengthReduce, branch release_32http://llvm.orghttps://git.amat.us/llvm/atom/test/Transforms/LoopStrengthReduce?h=release_322012-09-18T17:51:33ZLSR critical edge splitting fix for PR13756.2012-09-18T17:51:33ZAndrew Trickatrick@apple.com2012-09-18T17:51:33Zurn:sha1:f08c115e6c4b24b975ce376574f7daf6d5a92462
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164147 91177308-0d34-0410-b5e6-96231b3b80d8
During the CodeGenPrepare we often lower intrinsics (such as objsize)2012-08-14T05:19:07ZNadav Rotemnrotem@apple.com2012-08-14T05:19:07Zurn:sha1:3e883734fab4da8413f16957dd116d4ffd9d3223
and allow some optimizations to turn conditional branches into unconditional.
This commit adds a simple control-flow optimization which merges two consecutive
basic blocks which are connected by a single edge. This allows the codegen to
operate on larger basic blocks.
rdar://11973998
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161852 91177308-0d34-0410-b5e6-96231b3b80d8
Add a much more conservative strategy for aligning branch targets.2012-08-07T09:45:24ZChandler Carruthchandlerc@gmail.com2012-08-07T09:45:24Zurn:sha1:e6450dc2afc18531bf9b70180a9f67376d9f00c7
Previously, MBP essentially aligned every branch target it could. This
bloats code quite a bit, especially non-looping code which has no real
reason to prefer aligned branch targets so heavily.
As Andy said in review, it's still a bit odd to do this without a real
cost model, but this at least has much more plausible heuristics.
Fixes PR13265.
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Added unit test for PR13361: LSR + SCEV "hangs" on reasonably sized test.2012-07-18T18:07:52ZAndrew Trickatrick@apple.com2012-07-18T18:07:52Zurn:sha1:2f3c326786152dbcdc0f3d295a85c3ec448c7438
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160439 91177308-0d34-0410-b5e6-96231b3b80d8
LSR Fix: check SCEV expression safety before expansion.2012-07-13T23:33:10ZAndrew Trickatrick@apple.com2012-07-13T23:33:10Zurn:sha1:e08c32249fca32cd7b122024a4ca252fcb235694
All SCEV expressions used by LSR formulae must be safe to
expand. i.e. they may not contain UDiv unless we can prove nonzero
denominator.
Fixes PR11356: LSR hoists UDiv.
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Fix the remaining TCL-style quotes found in the testsuite. This is2012-07-02T19:09:46ZChandler Carruthchandlerc@gmail.com2012-07-02T19:09:46Zurn:sha1:1de43ede8904e08de37f601c9bab0b70f71156e1
another mechanical change accomplished though the power of terrible Perl
scripts.
I have manually switched some "s to 's to make escaping simpler.
While I started this to fix tests that aren't run in all configurations,
the massive number of tests is due to a really frustrating fragility of
our testing infrastructure: things like 'grep -v', 'not grep', and
'expected failures' can mask broken tests all too easily.
Essentially, I'm deeply disturbed that I can change the testsuite so
radically without causing any change in results for most platforms. =/
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Convert all tests using TCL-style quoting to use shell-style quoting.2012-07-02T12:47:22ZChandler Carruthchandlerc@gmail.com2012-07-02T12:47:22Zurn:sha1:4177e6fff50552908bab510f1e896fa974a6f155
This was done through the aid of a terrible Perl creation. I will not
paste any of the horrors here. Suffice to say, it require multiple
staged rounds of replacements, state carried between, and a few
nested-construct-parsing hacks that I'm not proud of. It happens, by
luck, to be able to deal with all the TCL-quoting patterns in evidence
in the LLVM test suite.
If anyone is maintaining large out-of-tree test trees, feel free to poke
me and I'll send you the steps I used to convert things, as well as
answer any painful questions etc. IRC works best for this type of thing
I find.
Once converted, switch the LLVM lit config to use ShTests the same as
Clang. In addition to being able to delete large amounts of Python code
from 'lit', this will also simplify the entire test suite and some of
lit's architecture.
Finally, the test suite runs 33% faster on Linux now. ;]
For my 16-hardware-thread (2x 4-core xeon e5520): 36s -> 24s
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Unit test for LSR kind=Special fix: r158536.2012-06-15T22:46:31ZAndrew Trickatrick@apple.com2012-06-15T22:46:31Zurn:sha1:23994693b359add9629a06784488869409a4bed9
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LSR fix: add a missing phi check during IV hoisting.2012-05-22T17:39:59ZAndrew Trickatrick@apple.com2012-05-22T17:39:59Zurn:sha1:3de8ad8bf9081fcb7ec0600fd2a8d1ce809f556d
Fixes PR12898: SCEVExpander crash.
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Make sure HoistInsertPosition finds a position that is dominated by all2012-04-30T03:53:06ZRafael Espindolarafael.espindola@gmail.com2012-04-30T03:53:06Zurn:sha1:9719cf329bc398191c65cd1c8cb1161d11c5e947
inputs.
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