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* Add support for the 's' operation to llvm-ar.Rafael Espindola2013-07-29
| | | | | | | | | | | | If no other operation is specified, 's' becomes an operation instead of an modifier. The s operation just creates a symbol table. It is the same as running ranlib. We assume the archive was created by a sane ar (like llvm-ar or gnu ar) and if the symbol table is present, then it is current. We use that to optimize the most common case: a broken build system that thinks it has to run ranlib. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187353 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Support larger COFF string tablesNico Rieck2013-07-29
| | | | | | | Single-slash encoded entries do not require a terminating null. This bumps the maximum table size from ~1MB to ~9.5MB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187352 91177308-0d34-0410-b5e6-96231b3b80d8
* ExceptionDemo.cpp: Tweak a @param. [-Wdocumentation]NAKAMURA Takumi2013-07-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187351 91177308-0d34-0410-b5e6-96231b3b80d8
* Some Intel Penryn CPUs come with SSE4 disabled. Detect them as core 2.Benjamin Kramer2013-07-29
| | | | | | PR16721. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187350 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow generation of vmla.f32 instructions when targeting Cortex-A15. The ↵Silviu Baranga2013-07-29
| | | | | | patch also adds the VFP4 feature to Cortex-A15 and fixes the DontUseFusedMAC predicate so that we can still generate vmla.f32 instructions on non-darwin targets with VFP4. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187349 91177308-0d34-0410-b5e6-96231b3b80d8
* test commitRobert Lytton2013-07-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187348 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach the AllocaPromoter which is wrapped around the SSAUpdaterChandler Carruth2013-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | infrastructure to do promotion without a domtree the same smarts about looking through GEPs, bitcasts, etc., that I just taught mem2reg about. This way, if SROA chooses to promote an alloca which still has some noisy instructions this code can cope with them. I've not used as principled of an approach here for two reasons: 1) This code doesn't really need it as we were already set up to zip through the instructions used by the alloca. 2) I view the code here as more of a hack, and hopefully a temporary one. The SSAUpdater path in SROA is a real sore point for me. It doesn't make a lot of architectural sense for many reasons: - We're likely to end up needing the domtree anyways in a subsequent pass, so why not compute it earlier and use it. - In the future we'll likely end up needing the domtree for parts of the inliner itself. - If we need to we could teach the inliner to preserve the domtree. Part of the re-work of the pass manager will allow this to be very powerful even in large SCCs with many functions. - Ultimately, computing a domtree has gotten significantly faster since the original SSAUpdater-using code went into ScalarRepl. We no longer use domfrontiers, and much of domtree is lazily done based on queries rather than eagerly. - At this point keeping the SSAUpdater-based promotion saves a total of 0.7% on a build of the 'opt' tool for me. That's not a lot of performance given the complexity! So I'm leaving this a bit ugly in the hope that eventually we just remove all of this nonsense. I can't even readily test this because this code isn't reachable except through SROA. When I re-instate the patch that fast-tracks allocas already suitable for promotion, I'll add a testcase there that failed before this change. Before that, SROA will fix any test case I give it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187347 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't vectorize when the attribute NoImplicitFloat is used.Nadav Rotem2013-07-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187340 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix -Wdocumentation warnings.Rafael Espindola2013-07-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187336 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comments for SSAUpdater to use the modern doxygen commentChandler Carruth2013-07-28
| | | | | | | | | | | | standards for LLVM. Remove duplicated comments on the interface from the implementation file (implementation comments are left there of course). Also clean up, re-word, and fix a few typos and errors in the commenst spotted along the way. This is in preparation for changes to these files and to keep the uninteresting tidying in a separate commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187335 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove use of sprintf added to X86 disassembler tablegen code. Send message ↵Craig Topper2013-07-28
| | | | | | with instruction name to errs() instead and use a generic message for the llvm_unreachable. Consistent with other places in this file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187333 91177308-0d34-0410-b5e6-96231b3b80d8
* Partial revert of 187310; it seems MSVC 10 still spits out this warning, but ↵Aaron Ballman2013-07-28
| | | | | | MSVC 11 does not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187331 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert r187323 until I update SSAUpdater to match mem2reg.Chandler Carruth2013-07-28
| | | | | | I forgot that we had two totally independent things here. :: sigh :: git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187327 91177308-0d34-0410-b5e6-96231b3b80d8
* fixed compilation issueElena Demikhovsky2013-07-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187325 91177308-0d34-0410-b5e6-96231b3b80d8
* Added encoding prefixes for KNL instructions (EVEX).Elena Demikhovsky2013-07-28
| | | | | | | Added 512-bit operands printing. Added instruction formats for KNL instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187324 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that mem2reg understands how to cope with a slightly wider set ofChandler Carruth2013-07-28
| | | | | | | | | | | | uses of an alloca, we can pre-compute promotability while analyzing an alloca for splitting in SROA. That lets us short-circuit the common case of a bunch of trivially promotable allocas. This cuts 20% to 30% off the run time of SROA for typical frontend-generated IR sequneces I'm seeing. It gets the new SROA to within 20% of ScalarRepl for such code. My current benchmark for these numbers is PR15412, but it fits the general pattern of IR emitted by Clang so it should be widely applicable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187323 91177308-0d34-0410-b5e6-96231b3b80d8
* Thread DataLayout through the callers and into mem2reg. This will beChandler Carruth2013-07-28
| | | | | | | useful in a subsequent patch, but causes an unfortunate amount of noise, so I pulled it out into a separate patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187322 91177308-0d34-0410-b5e6-96231b3b80d8
* [PowerPC] Add comment explaining preprocessor directive.Bill Schmidt2013-07-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187320 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 187318Bill Schmidt2013-07-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187319 91177308-0d34-0410-b5e6-96231b3b80d8
* [PowerPC] Remove unnecessary preprocessor checking.Bill Schmidt2013-07-28
| | | | | | | | | | The tests !defined(__ppc__) && !defined(__powerpc__) are not needed or helpful when verifying that code is being compiled for a 64-bit target. The simpler test provided by this revision is sufficient to tell if the target is 64-bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187318 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the commentNadav Rotem2013-07-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187316 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Make all arithmetic operations with NaN produce positive NaNs.Michael Gottesman2013-07-27
| | | | | | | | | | | | | IEEE-754R 1.4 Exclusions states that IEEE-754R does not specify the interpretation of the sign of NaNs. In order to remove an irrelevant variable that most floating point implementations do not use, standardize add, sub, mul, div, mod so that operating anything with NaN always yields a positive NaN. In a later commit I am going to update the APIs for creating NaNs so that one can not even create a negative NaN. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187314 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Move setting fcNormal in zeroSignificand() to calling code.Michael Gottesman2013-07-27
| | | | | | | | Zeroing the significand of a floating point number does not necessarily cause a floating point number to become finite non zero. For instance, if one has a NaN, zeroing the significand will cause it to become +/- infinity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187313 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Removed nextafter from missing operations since it is implemented ↵Michael Gottesman2013-07-27
| | | | | | in APFloat::next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187312 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enabling some more MSVC warnings; all of these compile cleanly with no ↵Aaron Ballman2013-07-27
| | | | | | further changes required. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187310 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor code simplification suggested by DuncanMatt Arsenault2013-07-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187309 91177308-0d34-0410-b5e6-96231b3b80d8
* DwarfDebug: MD5 is always little endian, bswap on big endian platforms.Benjamin Kramer2013-07-27
| | | | | | This makes LLVM emit the same signature regardless of host and target endianess. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187304 91177308-0d34-0410-b5e6-96231b3b80d8
* Create a constant pool symbol for the GOT in the ARMCGBR the same way weChandler Carruth2013-07-27
| | | | | | | | | | | | | | do in the SDag when lowering references to the GOT: use ARMConstantPoolSymbol rather than creating a dummy global variable. The computation of the alignment still feels weird (it uses IR types and datalayout) but it preserves the exact previous behavior. This change fixes the memory leak of the global variable detected on the valgrind leak checking bot. Thanks to Benjamin Kramer for pointing me at ARMConstantPoolSymbol to handle this use case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187303 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix yet another memory leak found by the vg-leak bot. Folks (includingChandler Carruth2013-07-27
| | | | | | | | | | | | | | | | me) should start watching this bot more as its catching lots of bugs. The fix here is to not construct the global if we aren't going to need it. That's cheaper anyways, and globals have highly predictable types in practice. I've added an assert to catch skew between our manual testing of the type and the actual type just for paranoia's sake. Note that this pattern is actually fine in most globals because when you build a global with a module it automatically is moved to be owned by that module. But here, we're in isel and don't really want to do that. The solution of not creating a global is simpler anyways. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187302 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a memory leak in the debug emission by simply not allocating memory.Chandler Carruth2013-07-27
| | | | | | | | There doesn't appear to be any reason to put this variable on the heap. I'm suspicious of the LexicalScope above that we stuff in a map and then delete afterward, but I'm just trying to get the valgrind bot clean. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187301 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a memory leak in the hexagon scheduler. We call initialize here moreChandler Carruth2013-07-27
| | | | | | | | | | | | | than once, and the second time through we leaked memory. Found thanks to the vg-leak bot, but I can't locally reproduce it with valgrind. The debugger confirms that it is in fact leaking here. This whole code is totally gross. Why is initialize being called on each runOnFunction??? Why aren't these OwningPtr<>s, and why aren't their lifetimes better defined? Anyways, this is just a surgical change to help out the leak checking bots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187299 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use all the #ifdefs to hide the stats counters and instead rely onChandler Carruth2013-07-27
| | | | | | | | | their being optimized out in debug mode. Realistically, this just isn't going to be the slow part anyways. This also fixes unused variable warnings that are breaking LLD build bots. =/ I didn't see these at first, and kept losing track of the fact that they were broken. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187297 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge the removal of dead instructions and lifetime markers with theChandler Carruth2013-07-27
| | | | | | | | | | | analysis of the alloca. We don't need to visit all the users twice for this. We build up a kill list during the analysis and then just process it afterward. This recovers the tiny bit of performance lost by moving to the visitor based analysis system as it removes one entire use-list walk from mem2reg. In some cases, this is now faster than mem2reg was previously. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187296 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enabling a warning in MSVC mode now that r187292 fixed the only instance ↵Aaron Ballman2013-07-27
| | | | | | of the warning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187293 91177308-0d34-0410-b5e6-96231b3b80d8
* SimplifyCFG: Add missing tests from r187278Tom Stellard2013-07-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187291 91177308-0d34-0410-b5e6-96231b3b80d8
* Update this CMakeLists.txt for r187283 too.Nick Lewycky2013-07-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187286 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info Verifier: verify SPs in llvm.dbg.sp.Manman Ren2013-07-27
| | | | | | | | | Also always add DIType, DISubprogram and DIGlobalVariable to the list in DebugInfoFinder without checking them, so we can verify them later on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187285 91177308-0d34-0410-b5e6-96231b3b80d8
* Also update CMakeLists.txt for r187283.Nick Lewycky2013-07-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187284 91177308-0d34-0410-b5e6-96231b3b80d8
* Reimplement isPotentiallyReachable to make nocapture deduction much stronger.Nick Lewycky2013-07-27
| | | | | | | | | | | Adds unit tests for it too. Split BasicBlockUtils into an analysis-half and a transforms-half, and put the analysis bits into a new Analysis/CFG.{h,cpp}. Promote isPotentiallyReachable into llvm::isPotentiallyReachable and move it into Analysis/CFG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187283 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enabling some more MSVC warnings; all of these compile cleanly with no ↵Aaron Ballman2013-07-27
| | | | | | further changes required. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187279 91177308-0d34-0410-b5e6-96231b3b80d8
* SimplifyCFG: Use parallel-and and parallel-or mode to consolidate branch ↵Tom Stellard2013-07-27
| | | | | | | | | | | | | | conditions Merge consecutive if-regions if they contain identical statements. Both transformations reduce number of branches. The transformation is guarded by a target-hook, and is currently enabled only for +R600, but the correctness has been tested on X86 target using a variety of CPU benchmarks. Patch by: Mei Ye git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187278 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the default back to pipefail. I accidentally reverted it before.Rafael Espindola2013-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187271 91177308-0d34-0410-b5e6-96231b3b80d8
* Propagate pipefail when cloning.Rafael Espindola2013-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187268 91177308-0d34-0410-b5e6-96231b3b80d8
* SLP Vectorier: Don't vectorize really short chains because they are already ↵Nadav Rotem2013-07-26
| | | | | | handled by the SelectionDAG store-vectorizer, which does a better job in deciding when to vectorize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187267 91177308-0d34-0410-b5e6-96231b3b80d8
* SLP Vectorizer: Disable the vectorization of non power of two chains, such ↵Nadav Rotem2013-07-26
| | | | | | as <3 x float>, because we dont have a good cost model for these types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187265 91177308-0d34-0410-b5e6-96231b3b80d8
* Use pipefail when available.Rafael Espindola2013-07-26
| | | | | | | | | | | | | | This change makes test with RUN lines like RUN: opt ... | FileCheck fail if opt fails, even if it prints what FileCheck wants. Enabling this found some interesting cases of broken tests that were not being noticed because opt (or some other tool) was crashing late. Pipefail is used when the shell supports it or when using the internal python based tester. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187261 91177308-0d34-0410-b5e6-96231b3b80d8
* next batch of -disable-debug-info-verifierRafael Espindola2013-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187260 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[PowerPC] Improve consistency in use of __ppc__, __powerpc__, etc."Rafael Espindola2013-07-26
| | | | | | This reverts commit r187248. It broke many bots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187254 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix variable name.Owen Anderson2013-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187253 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enabling the C4065 warning for MSVC builds as it no longer fires due to ↵Aaron Ballman2013-07-26
| | | | | | tablegen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187252 91177308-0d34-0410-b5e6-96231b3b80d8
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