llvm/test/Transforms/LoopRotate, branch stablehttp://llvm.orghttps://git.amat.us/llvm/atom/test/Transforms/LoopRotate?h=stable2012-12-30T02:33:22ZTests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID2012-12-30T02:33:22ZDmitri Gribenkogribozavr@gmail.com2012-12-30T02:33:22Zurn:sha1:a6542923b8ad94d791a12d3d5ae3e62a611f0383
This is done to avoid odd test failures, like the one fixed in r171243.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171250 91177308-0d34-0410-b5e6-96231b3b80d8
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID2012-12-30T01:28:40ZDmitri Gribenkogribozavr@gmail.com2012-12-30T01:28:40Zurn:sha1:b4912b9dccd7250c372a40ba0734171c6b0f5e9b
This is done to avoid odd test failures, like the one fixed in r171243.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171246 91177308-0d34-0410-b5e6-96231b3b80d8
Add a new attribute, 'noduplicate'. If a function contains a noduplicate call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call.2012-12-20T16:04:27ZJames Molloyjames.molloy@arm.com2012-12-20T16:04:27Zurn:sha1:67ae13575900e8efd056672987249fd0adbf5e73
Similarly inlining of the function is inhibited, if that would duplicate the call (in particular inlining is still allowed when there is only one callsite and the function has internal linkage).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170704 91177308-0d34-0410-b5e6-96231b3b80d8
LoopRotation: Make the brute force DomTree update more brute force.2012-09-02T11:57:22ZBenjamin Kramerbenny.kra@googlemail.com2012-09-02T11:57:22Zurn:sha1:7de7078933292b0487f1f39f539bece922e3dde5
We update until we hit a fixpoint. This is probably slow but also
slightly simplifies the code. It should also fix the occasional
invalid domtrees observed when building with expensive checking.
I couldn't find a case where this had a measurable slowdown, but
if someone finds a pathological case where it does we may have
to find a cleverer way of updating dominators here.
Thanks to Duncan for the test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163091 91177308-0d34-0410-b5e6-96231b3b80d8
Fix test case.2012-08-30T15:42:45ZBenjamin Kramerbenny.kra@googlemail.com2012-08-30T15:42:45Zurn:sha1:86c0d8c92fd36f60fa12cc5a729a42ed403b277d
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162913 91177308-0d34-0410-b5e6-96231b3b80d8
LoopRotate: Also rotate loops with multiple exits.2012-08-30T15:39:42ZBenjamin Kramerbenny.kra@googlemail.com2012-08-30T15:39:42Zurn:sha1:d70846ec1b79162d519620ddf07bcb7a64b65eb5
The old PHI updating code in loop-rotate was replaced with SSAUpdater a while
ago, it has no problems with comples PHIs. What had to be fixed is detecting
whether a loop was already rotated and updating dominators when multiple exits
were present.
This change increases overall code size a bit, mostly due to additional loop
unrolling opportunities. Passes test-suite and selfhost with -verify-dom-info.
Fixes PR7447.
Thanks to Andy for the input on the domtree updating code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162912 91177308-0d34-0410-b5e6-96231b3b80d8
llvm/test/Transforms/LoopRotate/PhiRename-1.ll: FileCheck-ize. It fixes PR13301.2012-07-17T15:43:17ZNAKAMURA Takumigeek4civic@gmail.com2012-07-17T15:43:17Zurn:sha1:f30135c519a983513b1a9cb4c96409cda4c5b39e
It began choking since Chandler's r159547, possibly due to improper expression on grep from TclParser to ShParser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160367 91177308-0d34-0410-b5e6-96231b3b80d8
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. =/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159547 91177308-0d34-0410-b5e6-96231b3b80d8
Fix ValueTracking to conclude that debug intrinsics are safe to2012-04-07T19:22:18ZChandler Carruthchandlerc@gmail.com2012-04-07T19:22:18Zurn:sha1:c0d18b669674d3b173e6a3eca6ada98871bb808f
speculate. Without this, loop rotate (among many other places) would
suddenly stop working in the presence of debug info. I found this
looking at loop rotate, and have augmented its tests with a reduction
out of a very hot loop in yacr2 where failing to do this rotation costs
sometimes more than 10% in runtime performance, perturbing numerous
downstream optimizations.
This should have no impact on performance without debug info, but the
change in performance when debug info is enabled can be extreme. As
a consequence (and this how I got to this yak) any profiling of
performance problems should be treated with deep suspicion -- they may
have been wildly innacurate of debug info was enabled for profiling. =/
Just a heads up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154263 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.2012-02-16T06:28:33ZEli Benderskyeli.bendersky@intel.com2012-02-16T06:28:33Zurn:sha1:0f0c411079cd21bb3a81a1b70bf8c67539a16c22
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