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* Reapply the new LoopStrengthReduction code, with compile time andDan Gohman2010-02-121-2/+2
| | | | | | | | | | | bug fixes, and with improved heuristics for analyzing foreign-loop addrecs. This change also flattens IVUsers, eliminating the stride-oriented groupings, which makes it easier to work with. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95975 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert LoopStrengthReduce.cpp to pre-r94061 for now.Dan Gohman2010-01-221-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94123 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-implement the main strength-reduction portion of LoopStrengthReduction.Dan Gohman2010-01-211-2/+2
| | | | | | | | | | | | | | | This new version is much more aggressive about doing "full" reduction in cases where it reduces register pressure, and also more aggressive about rewriting induction variables to count down (or up) to zero when doing so reduces register pressure. It currently uses fairly simplistic algorithms for finding reuse opportunities, but it introduces a new framework allows it to combine multiple strategies at once to form hybrid solutions, instead of doing all full-reduction or all base+index. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94061 91177308-0d34-0410-b5e6-96231b3b80d8
* Make several tests less fragile.Dan Gohman2010-01-121-8/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93230 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate more uses of llvm-as and llvm-dis.Dan Gohman2009-09-081-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
* Change these tests to use regular loads instead of llvm.x86.sse2.loadu.dq.Dan Gohman2009-02-161-6/+4
| | | | | | | | | Enhance instcombine to use the preferred field of GetOrEnforceKnownAlignment in more cases, so that regular IR operations are optimized in the same way that the intrinsics currently are. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64623 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enable machine sinking pass now that the coalescer bugs and the ↵Evan Cheng2009-02-091-1/+1
| | | | | | AnalyzeBrnach bug are fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64126 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r63999. It was breaking self-hosting builds.Bill Wendling2009-02-081-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64062 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable machine sinking pass in non-fast mode.Evan Cheng2009-02-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63999 91177308-0d34-0410-b5e6-96231b3b80d8
* Undo spill weight tweak. Need to investigate the performance regressions.Evan Cheng2008-06-211-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52572 91177308-0d34-0410-b5e6-96231b3b80d8
* This got better.Evan Cheng2008-06-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52481 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix test, instruction count is valid only if stack is not realignedAnton Korobeynikov2008-04-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50170 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove -unwind-tables-optional everywhere, sinceDale Johannesen2008-04-141-1/+1
| | | | | | | | this is now the default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49667 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename -disable-required-unwind-tables to -unwind-tables-optional.Dale Johannesen2008-04-081-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49391 91177308-0d34-0410-b5e6-96231b3b80d8
* Add -disable-required-unwind-tables to testsDale Johannesen2008-04-081-1/+1
| | | | | | | | | that need it (usually, grepping for some string found in unwind info) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49364 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark functions in some tests as 'nounwind'. GeneratingDale Johannesen2008-03-311-1/+1
| | | | | | | | | | EH info for these functions causes the tests to fail for random reasons (e.g. looking for 'or' or counting lines with asm-printer; labels count as lines.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49003 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable convertToThreeAddress for X86 by default.Evan Cheng2007-10-051-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42655 91177308-0d34-0410-b5e6-96231b3b80d8
* Use push / pop for prologues and epilogues.Evan Cheng2007-07-171-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39967 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR1319: Upgrade to new test harness.Reid Spencer2007-04-151-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36091 91177308-0d34-0410-b5e6-96231b3b80d8
* These got better.Evan Cheng2007-04-041-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35661 91177308-0d34-0410-b5e6-96231b3b80d8
* This got better.Evan Cheng2007-03-131-43/+44
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35090 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR761:Reid Spencer2007-01-261-1/+3
| | | | | | | | | | | | | | | Remove "target endian/pointersize" or add "target datalayout" to make the test parse properly or set the datalayout because defaults changes. For PR645: Make global names use the @ prefix. For llvm-upgrade changes: Fix test cases or completely remove use of llvm-upgrade for test cases that cannot survive the new renaming or upgrade capabilities. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33533 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the llvm-upgrade program to upgrade llvm assembly.Reid Spencer2006-12-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use bitcast yet!Reid Spencer2006-11-261-11/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31930 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this test case easier to read. No functional changes.Reid Spencer2006-11-261-27/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31929 91177308-0d34-0410-b5e6-96231b3b80d8
* -sched-commute-nodes is now on by default.Evan Cheng2006-05-251-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28467 91177308-0d34-0410-b5e6-96231b3b80d8
* New scheduling test case.Evan Cheng2006-05-121-0/+53
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28232 91177308-0d34-0410-b5e6-96231b3b80d8