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* Fix a bug in the over-index constant folding. When over-indexing anDan Gohman2009-08-191-8/+24
| | | | | | | | | array member of a struct, it's possible to land in an arbitrary position inside that struct, such that attempting to find further getelementptr indices will fail. In such cases, folding cannot be done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79485 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle 'a' modifier in X86 asms. PR 4742.Dale Johannesen2009-08-191-0/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79484 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed error in CPPBackend from a contextification API change.Reid Kleckner2009-08-191-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79483 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing forward declaration.David Greene2009-08-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79481 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing includes.David Greene2009-08-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79480 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing includes.David Greene2009-08-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79479 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing includes.David Greene2009-08-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79478 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing includes.David Greene2009-08-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79476 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing includes.David Greene2009-08-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79475 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing includes.David Greene2009-08-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79474 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing includes.David Greene2009-08-191-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79473 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of a helgrind warning. If this is _actually_ a performance problem,Owen Anderson2009-08-191-3/+3
| | | | | | | we can find a way to cache the answer that isn't racy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79472 91177308-0d34-0410-b5e6-96231b3b80d8
* Add triple parsing support for TCE.Eli Friedman2009-08-191-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79461 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch to SmallString::str from SmallString::c_str, and removeDaniel Dunbar2009-08-194-8/+9
| | | | | | | SmallString::c_str. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79456 91177308-0d34-0410-b5e6-96231b3b80d8
* Change ValueSymbolTable to use raw_svector_ostream for string concatenation.Daniel Dunbar2009-08-191-5/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79449 91177308-0d34-0410-b5e6-96231b3b80d8
* Change raw_svector_ostream to reserve the input buffer if necessary, Ted wasDaniel Dunbar2009-08-191-3/+7
| | | | | | | | | | | | | | right. - This class turns out to be much more convenient to use if we do this; clients can make sure the buffer is always big enough if they care (since our current idiom tends to be to use a SmallString<256> for the input to this we should generally be avoiding an unnecessary malloc). Also, add a convenience raw_svector_ostream::str method which flushes the buffer and returns a StringRef for the vector contents. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79446 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove temporary testing code.Dan Gohman2009-08-191-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79443 91177308-0d34-0410-b5e6-96231b3b80d8
* Make SROA and PredicateSimplifier cope if TargetData is notDan Gohman2009-08-192-6/+16
| | | | | | | available. This is very conservative for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79442 91177308-0d34-0410-b5e6-96231b3b80d8
* Use hasDefinitiveInitializer() instead of testing the same thingDan Gohman2009-08-196-9/+8
| | | | | | | | by hand, and fix a few places that were using hasInitializer() that appear to depend on the initializer value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79441 91177308-0d34-0410-b5e6-96231b3b80d8
* Canonicalize indices in a constantexpr GEP. If Indices exceed theDan Gohman2009-08-191-4/+48
| | | | | | | | | static extents of the static array type, it causes GlobalOpt and other passes to be more conservative. This canonicalization also allows the constant folder to add "inbounds" to GEPs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79440 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an x86 peep that narrows TEST instructions to forms that useDan Gohman2009-08-192-6/+114
| | | | | | | | a smaller encoding. These kinds of patterns are very frequent in sqlite3, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79439 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch Twine::str() to use toVector(), which is now efficient.Daniel Dunbar2009-08-191-14/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79437 91177308-0d34-0410-b5e6-96231b3b80d8
* Update Cortex-A8 instruction itineraries for integer instructions.David Goodwin2009-08-196-365/+650
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79436 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch raw_svector_ostream to use the vector as the ostream buffer.Daniel Dunbar2009-08-191-1/+29
| | | | | | | | - This avoids unnecessary malloc/free overhead in the common case, and unnecessary copying from the ostream buffer into the output vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79434 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply my less-lock-contention-in-leak-detector patch, now with new filesOwen Anderson2009-08-193-90/+119
| | | | | | | actually added. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79429 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for Neon VEXT (vector extract) shuffles.Bob Wilson2009-08-193-1/+69
| | | | | | | | | This is derived from a patch by Anton Korzh. I modified it to recognize the VEXT shuffles during legalization and lower them to a target-specific DAG node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79428 91177308-0d34-0410-b5e6-96231b3b80d8
* Speculatively revert r79375, which may be breaking bootstrap, although in aDaniel Dunbar2009-08-191-15/+10
| | | | | | | rather obscure way (the other candidate is r79377). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79426 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the schedule itinerary operand use/def cycle information to adjust ↵David Goodwin2009-08-193-7/+75
| | | | | | dependence edge latency for post-RA scheduling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79425 91177308-0d34-0410-b5e6-96231b3b80d8
* PR4737: Fix a nasty bug in load narrowing with non-power-of-two types.Eli Friedman2009-08-191-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79415 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix up PHI nodes correctly in the presence of unreachable BBs, part two. AlsoNick Lewycky2009-08-191-7/+30
| | | | | | | delete a newed pointer, and improve readability a little bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79411 91177308-0d34-0410-b5e6-96231b3b80d8
* fix asmstreaming of 2/4 byte elements with pow-2 alignments.Chris Lattner2009-08-191-1/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79408 91177308-0d34-0410-b5e6-96231b3b80d8
* Be more careful when modifying PHI nodes. Patch by Andre Tavares.Nick Lewycky2009-08-191-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79407 91177308-0d34-0410-b5e6-96231b3b80d8
* switch asmprinter to emit alignments through OutStreamer.Chris Lattner2009-08-192-22/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79406 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate AsmPrinter::SwitchToSection and just have clientsChris Lattner2009-08-1918-134/+167
| | | | | | | talk to the MCStreamer directly instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79405 91177308-0d34-0410-b5e6-96231b3b80d8
* Broke line before break.Andreas Neustifter2009-08-191-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79404 91177308-0d34-0410-b5e6-96231b3b80d8
* Make a SmallVector size more reasonable.Daniel Dunbar2009-08-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79403 91177308-0d34-0410-b5e6-96231b3b80d8
* Added an option to have the PBQP allocator attempt coalescing during allocation.Lang Hames2009-08-191-1/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79397 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert my last patch temporarily.Owen Anderson2009-08-192-29/+90
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79388 91177308-0d34-0410-b5e6-96231b3b80d8
* Privatize part of the leak detector mechanism, which turned out to be ↵Owen Anderson2009-08-192-90/+29
| | | | | | | | | | heavily contended when trying to run opt in parallel. This lets parallel opt crunch 403.gcc in about a third of the time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79387 91177308-0d34-0410-b5e6-96231b3b80d8
* raw_ostream: Simplify write(unsigned char) to match write(const char*, ↵Daniel Dunbar2009-08-191-18/+8
| | | | | | unsigned). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79386 91177308-0d34-0410-b5e6-96231b3b80d8
* raw_ostream: Remove pointless redefinitions of tell().Daniel Dunbar2009-08-191-8/+0
| | | | | | | - The base class implementation is correct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79385 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix SimplifyLibcalls and ValueTracking to check mayBeOverriddenDan Gohman2009-08-192-2/+4
| | | | | | | before performing optimizations based on constant string values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79384 91177308-0d34-0410-b5e6-96231b3b80d8
* Be tidy and use a break to exit from a switch block rather thanDan Gohman2009-08-181-0/+1
| | | | | | | just falling through the end. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79383 91177308-0d34-0410-b5e6-96231b3b80d8
* raw_ostream: Add the capability for subclasses to manually install an externalDaniel Dunbar2009-08-181-21/+23
| | | | | | | buffer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79382 91177308-0d34-0410-b5e6-96231b3b80d8
* Legalize the shift amount operand of SRL_PARTS, SHL_PARTS, andDan Gohman2009-08-181-0/+7
| | | | | | | SRA_PARTS, as is done for SRL, SHL, and SRA. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79380 91177308-0d34-0410-b5e6-96231b3b80d8
* raw_ostream: Reduce FormattedStream's reliance on raw_ostream's implementation.Daniel Dunbar2009-08-181-21/+18
| | | | | | | | | | | | | | | - Kill off begin(), end(), and iterator. It isn't clear what these mean. Instead provide getBufferStart(), which can be used with GetNumBytesInBuffer to the same effect. - Update ComputeColumn to take arguments for the buffer to scan, this simplifies the implementation of write_impl substantially. - This should also fix possible problems with the scanning pointer pointing outside of the current raw_ostream buffer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79379 91177308-0d34-0410-b5e6-96231b3b80d8
* Changes DOUT references in the PBQP allocator to use DEBUG(errs() ...)Lang Hames2009-08-181-11/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79378 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement sse4.2 string/text processing instructions:Eric Christopher2009-08-184-1/+178
| | | | | | | | | Add patterns and instruction encoding information. Add custom lowering to deal with hardwired return register of uncertain type (xmm0). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79377 91177308-0d34-0410-b5e6-96231b3b80d8
* Speed up raw_ostream::<<(unsigned long long) for 32-bit systems by doing mostDaniel Dunbar2009-08-181-10/+15
| | | | | | | div/mods in 32-bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79375 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify RegScavenger::FindUnusedReg.Jakob Stoklund Olesen2009-08-185-43/+11
| | | | | | | | | - Drop the Candidates argument and fix all callers. Now that RegScavenger tracks available registers accurately, there is no need to restict the search. - Make sure that no aliases of the found register are in use. This was a potential bug. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79369 91177308-0d34-0410-b5e6-96231b3b80d8
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