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* Fix some broken links, from Matthieu MonrocqDouglas Gregor2011-04-151-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129609 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix lines that exceed 80 columns. There is no change in functionality.Akira Hatanaka2011-04-152-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129608 91177308-0d34-0410-b5e6-96231b3b80d8
* Add this test back for Darwin.Rafael Espindola2011-04-151-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129607 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix lines that have incorrect indentation or exceed 80 columns. There is no ↵Akira Hatanaka2011-04-1532-270/+299
| | | | | | change in functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129606 91177308-0d34-0410-b5e6-96231b3b80d8
* The AND instruction leaves the V flag unmodified, so it falls victim to the sameCameron Zwarich2011-04-152-7/+28
| | | | | | problem as all of the other instructions we fold with CMPs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129602 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix cmake build.Rafael Espindola2011-04-151-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129601 91177308-0d34-0410-b5e6-96231b3b80d8
* Some refactoring suggested by Anton Korobeynikov.Rafael Espindola2011-04-153-41/+30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129600 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing register forms of instructions to the ARM CMP-folding code. ThisCameron Zwarich2011-04-152-0/+34
| | | | | | fixes <rdar://problem/9287901>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129599 91177308-0d34-0410-b5e6-96231b3b80d8
* Add pass that expands pseudo instructions into target instructions after ↵Akira Hatanaka2011-04-159-9/+196
| | | | | | register allocation. Define pseudos that get expanded into mtc1 or mfc1 instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129594 91177308-0d34-0410-b5e6-96231b3b80d8
* Increase SubtargetFeatureKV Value and Implies fields to 64 bits since some ↵Evan Cheng2011-04-153-13/+19
| | | | | | targets are getting very close to 32 subtarget features. Also teach tablegen to error when there are more than 64 features to guard against undefined behavior. rdar://9282332 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129590 91177308-0d34-0410-b5e6-96231b3b80d8
* Add encoding tests for flds/fildsJoerg Sonnenberger2011-04-152-0/+24
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* Implements StringRef::compare with bounds. It is behaves similarly to ↵Lenny Maiorani2011-04-153-0/+40
| | | | | | strncmp(). Unit tests also included. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129582 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach the SplitKit blitter to handle multiply defined values as well.Jakob Stoklund Olesen2011-04-152-96/+223
| | | | | | | | | | | | | | The transferValues() function can now handle both singly and multiply defined values, as long as the resulting live range is known. Only rematerialized values have their live range recomputed by extendRange(). The updateSSA() function can now insert PHI values in bulk across multiple values in multiple target registers in one pass. The list of blocks received from transferValues() is in layout order which seems to work well for the iterative algorithm. Blocks from extendRange() are still in reverse BFS order, but this function is used so rarely now that it doesn't matter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129580 91177308-0d34-0410-b5e6-96231b3b80d8
* Remember to set flag.Jakob Stoklund Olesen2011-04-151-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129579 91177308-0d34-0410-b5e6-96231b3b80d8
* Add 129518 back with a fix for when we are producing eh just because of ↵Rafael Espindola2011-04-159-34/+92
| | | | | | | | | debug info. Change ELF systems to use CFI for producing the EH tables. This reduces the size of the clang binary in Debug builds from 690MB to 679MB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129571 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a ton of comment typos found by codespell. Patch byChris Lattner2011-04-15193-267/+266
| | | | | | | | Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r129518, "Change ELF systems to use CFI for producing the EH tables. ↵NAKAMURA Takumi2011-04-159-91/+33
| | | | | | | | This reduces the" It broke several builds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129557 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix another fcopysign lowering bug. If src is f64 and destination is f32, don'tEvan Cheng2011-04-152-5/+25
| | | | | | | forget to right shift the source by 32 first. rdar://9287902 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129556 91177308-0d34-0410-b5e6-96231b3b80d8
* For t2BFI, both Inst{26} and Inst{5} "should" be 0.Johnny Chen2011-04-151-0/+4
| | | | | | | Ref: I.1 Instruction encoding diagrams and pseudocode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129552 91177308-0d34-0410-b5e6-96231b3b80d8
* Add 3DNow! intrinsics.Michael J. Spencer2011-04-154-49/+449
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129551 91177308-0d34-0410-b5e6-96231b3b80d8
* The ARM disassembler did not handle the alignment correctly for VLD*DUP* ↵Johnny Chen2011-04-153-0/+43
| | | | | | | | | instructions (single element or n-element structure to all lanes). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129550 91177308-0d34-0410-b5e6-96231b3b80d8
* Follow up on r127913. Fix Thumb revsh isel. rdar://9286766Evan Cheng2011-04-142-1/+65
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129548 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an instcombine for constructs like a | -(b != c); a select is moreEli Friedman2011-04-142-1/+27
| | | | | | | | | canonical, and generally leads to better code. Found while looking at an article about saturating arithmetic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129545 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an infinite alternation in JumpThreading where two transforms would ↵Owen Anderson2011-04-142-3/+46
| | | | | | | | | | | repeatedly undo each other. The solution is to perform more aggressive constant folding to make one of the edges just folded away rather than trying to thread it. Fixes <rdar://problem/9284786>. Discovered with CSmith. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129538 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup r129509 based on comments by ChrisMon P Wang2011-04-141-7/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129532 91177308-0d34-0410-b5e6-96231b3b80d8
* Add sanity checkings for Thumb2 Load/Store Register Exclusive family of ↵Johnny Chen2011-04-145-4/+74
| | | | | | operations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129531 91177308-0d34-0410-b5e6-96231b3b80d8
* move PR9661 out to here.Chris Lattner2011-04-141-0/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129527 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix another instance of the DAG combiner not using the correct type for the ↵Owen Anderson2011-04-141-3/+5
| | | | | | RHS of a shift. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129522 91177308-0d34-0410-b5e6-96231b3b80d8
* tests: Remove a FrontendC test which is no longer valid.Daniel Dunbar2011-04-141-11/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129519 91177308-0d34-0410-b5e6-96231b3b80d8
* Change ELF systems to use CFI for producing the EH tables. This reduces theRafael Espindola2011-04-149-33/+91
| | | | | | size of the clang binary in Debug builds from 690MB to 679MB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129518 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix whitespace and tabs.Michael J. Spencer2011-04-142-55/+55
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129517 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup r129472 by using a utility routine as suggested by Eli.Mon P Wang2011-04-141-51/+43
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129509 91177308-0d34-0410-b5e6-96231b3b80d8
* In the pre-RA scheduler, maintain cmp+br proximity.Andrew Trick2011-04-148-25/+139
| | | | | | | | | | | | | | | | | | | | | | | | | This is done by pushing physical register definitions close to their use, which happens to handle flag definitions if they're not glued to the branch. This seems to be generally a good thing though, so I didn't need to add a target hook yet. The primary motivation is to generate code closer to what people expect and rule out missed opportunity from enabling macro-op fusion. As a side benefit, we get several 2-5% gains on x86 benchmarks. There is one regression: SingleSource/Benchmarks/Shootout/lists slows down be -10%. But this is an independent scheduler bug that will be tracked separately. See rdar://problem/9283108. Incidentally, pre-RA scheduling is only half the solution. Fixing the later passes is tracked by: <rdar://problem/8932804> [pre-RA-sched] on x86, attempt to schedule CMP/TEST adjacent with condition jump Fixes: <rdar://problem/9262453> Scheduler unnecessary break of cmp/jump fusion git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129508 91177308-0d34-0410-b5e6-96231b3b80d8
* Documented bugpoint --compile-custom --compile-command.Andrew Trick2011-04-141-2/+16
| | | | | | | I've used it a few times to reduce unit tests and gotten one request for information on it. It's not easy to use correctly because bugpoint doesn't tell you when you're doing it wrong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129507 91177308-0d34-0410-b5e6-96231b3b80d8
* add a minor missed dag combine that is blocking mid-level optimizationChris Lattner2011-04-141-0/+76
| | | | | | | | improvements, that will lead to fixing PR6627. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129504 91177308-0d34-0410-b5e6-96231b3b80d8
* sink a call into its only use.Chris Lattner2011-04-141-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129503 91177308-0d34-0410-b5e6-96231b3b80d8
* rework FoldBranchToCommonDest to exit earlier when there is a bonusChris Lattner2011-04-141-39/+30
| | | | | | | | | | | | | | instruction around, reducing work. Greatly simplify handling of debug instructions. There is no need to build up a vector of them and then move them into the one predecessor if we're processing a block. Instead just rescan the block and *copy* them into the pred. If a block gets merged into multiple preds, this will retain more debug info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129502 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a couple -Wsign-compare warnings.Chris Lattner2011-04-141-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129501 91177308-0d34-0410-b5e6-96231b3b80d8
* As Dan pointed out, movzbl, movsbl, and friends are nicer than their aliasBill Wendling2011-04-1429-121/+112
| | | | | | | (movzx/movsx) because they give more information. Revert that part of the patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129498 91177308-0d34-0410-b5e6-96231b3b80d8
* Have the X86 back-end emit the alias instead of what's being aliased. In mostBill Wendling2011-04-1433-163/+175
| | | | | | | cases, it's much nicer and more informative reading the alias. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129497 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an option to not print the alias of an instruction. It defaults to "printBill Wendling2011-04-133-3/+8
| | | | | | | the alias". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129485 91177308-0d34-0410-b5e6-96231b3b80d8
* During post-legalization DAG combining, be careful to only create shifts ↵Owen Anderson2011-04-131-1/+8
| | | | | | where the RHS is of the legal type for the new operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129484 91177308-0d34-0410-b5e6-96231b3b80d8
* Thumb disassembler did not handle tBRIND (indirect branch) properly.Johnny Chen2011-04-132-6/+13
| | | | | | | rdar://problem/9280370 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129480 91177308-0d34-0410-b5e6-96231b3b80d8
* Vectors with different number of elements of the same element type can haveMon P Wang2011-04-132-6/+110
| | | | | | | | | the same allocation size but different primitive sizes(e.g., <3xi32> and <4xi32>). When ScalarRepl promotes them, it can't use a bit cast but should use a shuffle vector instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129472 91177308-0d34-0410-b5e6-96231b3b80d8
* Check for unallocated instruction encodings when disassembling Thumb Branch ↵Johnny Chen2011-04-133-7/+24
| | | | | | | | | instructions (tBcc and t2Bcc). rdar://problem/9280470 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129471 91177308-0d34-0410-b5e6-96231b3b80d8
* The LDR*T/STR*T (unpriviledged load/store) operations don't take SP or PC as Rt.Johnny Chen2011-04-133-8/+26
| | | | | | | rdar://problem/9279440 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129469 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo in an ARM-specific DAG combine. This fixes <rdar://problem/9278274>.Cameron Zwarich2011-04-132-1/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129468 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix format string warning.Benjamin Kramer2011-04-131-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129467 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a regression caused by r102515 where explicit alignment on globals isCameron Zwarich2011-04-133-6/+6
| | | | | | | ignored. There was a test to catch this, but it was just blindly updated in a large change. This fixes another part of <rdar://problem/9275290>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129466 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix debug message.Devang Patel2011-04-131-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129463 91177308-0d34-0410-b5e6-96231b3b80d8
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