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* document some invariants.Chris Lattner2009-07-252-4/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77084 91177308-0d34-0410-b5e6-96231b3b80d8
* add the most expedient hack to fix PR4619, along with a testcase.Chris Lattner2009-07-252-0/+13
| | | | | | | Thanks to Rafael for the great example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77083 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a few comments to say "backedge-taken count" instead ofDan Gohman2009-07-251-2/+3
| | | | | | | "trip count". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77081 91177308-0d34-0410-b5e6-96231b3b80d8
* SCEV objects are no longer reference-counted.Dan Gohman2009-07-251-3/+2
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* Update comments to new-style syntax.Dan Gohman2009-07-251-1/+1
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* When attempting to sign-extend an addrec by interpretingDan Gohman2009-07-252-2/+76
| | | | | | | | the step value as unsigned, the start value and the addrec itself still need to be treated as signed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77078 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove spurious semicolons.Dan Gohman2009-07-251-2/+2
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* Convert DOUT to DEBUG.Andreas Bolka2009-07-251-5/+5
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* Simplify JIT target selection.Daniel Dunbar2009-07-2517-156/+58
| | | | | | | | | | | - Instead of requiring targets to define a JIT quality match function, we just have them specify if they support a JIT. - Target selection for the JIT just gets the host triple and looks for the best target which matches the triple and has a JIT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77060 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark attributes of return insn correctly. It was being assumed safe to ↵Sanjiv Gupta2009-07-251-0/+1
| | | | | | delete in isSafeToDelete (a thing checked-in 76281). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77056 91177308-0d34-0410-b5e6-96231b3b80d8
* remove this test. It is currently failing because we now emit the stringChris Lattner2009-07-251-11/+0
| | | | | | | | | on darwin with ".cstring" instead of ".section __TEXT,__cstring". They are the same and the former is better. Remove this because this is no longer magic pixie dust in the frontend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77055 91177308-0d34-0410-b5e6-96231b3b80d8
* eventually we should describe string options in the data structures sectionChris Lattner2009-07-251-0/+22
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* minor tweaks.Chris Lattner2009-07-251-8/+9
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* Add new helpers for registering targets.Daniel Dunbar2009-07-2540-344/+188
| | | | | | | - Less boilerplate == good. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77052 91177308-0d34-0410-b5e6-96231b3b80d8
* Finish migrating VMCore to StringRef/Twine based APIs.Daniel Dunbar2009-07-2517-141/+126
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* Ok, "most clients should be unaffected" was a lie. Add notes on upgrading.Daniel Dunbar2009-07-251-1/+24
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* Initial update to VMCore to use Twines for string arguments.Daniel Dunbar2009-07-2519-276/+392
| | | | | | | | - The only meat here is in Value.{h,cpp} the rest is essential 'const std::string &' -> 'const Twine &'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77048 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix 80-col violations.Eric Christopher2009-07-251-5/+8
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* Move ExtractElementInst to ::Create instead of new. Update all uses.Eric Christopher2009-07-257-18/+28
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* Update to new syntax.Dan Gohman2009-07-251-2/+2
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* Rewrite examples to use DEBUG instead of DOUT.Daniel Dunbar2009-07-251-5/+5
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* 80 col violation.Evan Cheng2009-07-251-1/+2
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* Convert a few more things to use raw_ostream.Dan Gohman2009-07-256-44/+42
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* Get rid of a couple of unnecessary getOpcode calls.Evan Cheng2009-07-252-2/+2
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* Teach ScalarEvolution to make use of no-overflow flags whenDan Gohman2009-07-252-2/+77
| | | | | | | analyzing add recurrences. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77034 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert a few more uses of llvm/Support/Streams.h to raw_ostream.Dan Gohman2009-07-254-27/+21
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* Instead of eagerly creating new SCEVs to replace all SCEVs that areDan Gohman2009-07-253-178/+84
| | | | | | | | | | | | | affected after a PHI node has been analyzed, just remove affected SCEVs from the Scalars map, so that they'll be (lazily) recreated as needed. This avoids creating SCEV objects that aren't actually needed. Also, rewrite the associated def-use walking code to be non-recursive and to continue traversing past Instructions that don't have an entry in the Scalars map. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77032 91177308-0d34-0410-b5e6-96231b3b80d8
* I've lost my mind. PR4572 has not been fixed.Evan Cheng2009-07-251-29/+0
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* Make AliasAnalysis and related classes useDan Gohman2009-07-258-47/+54
| | | | | | | getAnalysisIfAvailable<TargetData>(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77028 91177308-0d34-0410-b5e6-96231b3b80d8
* One more getName -> getNameStrDaniel Dunbar2009-07-251-3/+3
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* Another TODO.Evan Cheng2009-07-251-0/+6
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* Add a missing ilist_node.h #include to SparseBitVector, and add a very shortJeffrey Yasskin2009-07-252-0/+37
| | | | | | | | test for it. The test is by no means complete, but it tests the problem I was fixing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77025 91177308-0d34-0410-b5e6-96231b3b80d8
* Change Thumb2 jumptable codegen to one that uses two level jumps:Evan Cheng2009-07-2513-72/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before: adr r12, #LJTI3_0_0 ldr pc, [r12, +r0, lsl #2] LJTI3_0_0: .long LBB3_24 .long LBB3_30 .long LBB3_31 .long LBB3_32 After: adr r12, #LJTI3_0_0 add pc, r12, +r0, lsl #2 LJTI3_0_0: b.w LBB3_24 b.w LBB3_30 b.w LBB3_31 b.w LBB3_32 This has several advantages. 1. This will make it easier to optimize this to a TBB / TBH instruction + (smaller) table. 2. This eliminate the need for ugly asm printer hack to force the address into thumb addresses (bit 0 is one). 3. Same codegen for pic and non-pic. 4. This eliminate the need to align the table so constantpool island pass won't have to over-estimate the size. Based on my calculation, the later is probably slightly faster as well since ldr pc with shifter address is very slow. That is, it should be a win as long as the HW implementation can do a reasonable job of branch predict the second branch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77024 91177308-0d34-0410-b5e6-96231b3b80d8
* MemoryObject - Abstract base class for contiguous addressable memory.Sean Callanan2009-07-251-0/+81
| | | | | | | | | | | Necessary for cases in which the memory is in another process, in a file, or on a remote machine. The primary use for this is the llvm-mc disassemblers, so that they can be targeted at arbitrary objects, not just in-process memory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77023 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove a duplicated test.Evan Cheng2009-07-251-26/+0
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* More migration to raw_ostream, the water has dried up around the iostream hole.Daniel Dunbar2009-07-2545-256/+302
| | | | | | | | | | | - Some clients which used DOUT have moved to DEBUG. We are deprecating the "magic" DOUT behavior which avoided calling printing functions when the statement was disabled. In addition to being unnecessary magic, it had the downside of leaving code in -Asserts builds, and of hiding potentially unnecessary computations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77019 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM code emitter can't handle Thumb2 instructions yet. So don't even try.Evan Cheng2009-07-251-4/+3
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* Tweak, raw_ostream is a ostream, not iostream replacementDaniel Dunbar2009-07-241-3/+3
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* Fix build for GCC 4.0?Daniel Dunbar2009-07-241-0/+1
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* Fix compile with 4.4 (I hope?); PR4617.Daniel Dunbar2009-07-241-1/+1
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* Forward-declare raw_ostream.Andreas Bolka2009-07-242-1/+3
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* Revert the ConstantInt constructors back to their 2.5 forms where possible, ↵Owen Anderson2009-07-2467-1254/+960
| | | | | | thanks to contexts-on-types. More to come. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77011 91177308-0d34-0410-b5e6-96231b3b80d8
* CodingStandards: Emphasize use of raw_ostream more.Daniel Dunbar2009-07-241-3/+24
| | | | | | | - Chris, please approve. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77010 91177308-0d34-0410-b5e6-96231b3b80d8
* AliasAnalysis wants sizes in address-units, not bits.Dan Gohman2009-07-241-1/+1
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* Forgot this test earlier.Evan Cheng2009-07-241-0/+29
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* Fix these tests.Evan Cheng2009-07-242-2/+2
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* Fix assert assembling zero-argument constant GEP.Eli Friedman2009-07-242-2/+8
| | | | | | | | | There's still a strict-aliasing violation here, but I don't feel like dealing with that right now... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77005 91177308-0d34-0410-b5e6-96231b3b80d8
* Uh. It would be useful to actually print the operand.Evan Cheng2009-07-241-1/+1
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* fix some predicatesChris Lattner2009-07-242-6/+5
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* change SectionKindForGlobal from being a public (andChris Lattner2009-07-242-23/+9
| | | | | | | | previously virtual) function to being a static function in the .cpp file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76997 91177308-0d34-0410-b5e6-96231b3b80d8
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