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* fixed more typosSanjay Patel2014-05-301-2/+2
| | | | llvm-svn: 209921
* Roll DbgVariable::setMInsn into the constructor. No functional changes.Adrian Prantl2014-05-302-8/+15
| | | | llvm-svn: 209920
* added link to CMake pageSanjay Patel2014-05-301-3/+4
| | | | llvm-svn: 209918
* fixed typoSanjay Patel2014-05-301-1/+1
| | | | llvm-svn: 209916
* Make bitcast, extractelement, and insertelement considered cheap for ↵Matt Arsenault2014-05-302-0/+63
| | | | | | | | | | speculation. This helps more branches into selects. On R600, vectors are cheap and anything that helps remove branches is very good. llvm-svn: 209914
* Fix MIPS exception personality encoding.Logan Chien2014-05-304-9/+46
| | | | | | | | | For MIPS, we have to encode the personality routine with an indirect pointer to absptr; otherwise, some link warning warning will be raised, and the program might crash in some early MIPS Android device. llvm-svn: 209907
* MachO: move test to ARM directory.Tim Northover2014-05-301-0/+0
| | | | | | | This test specifies an ARM triple, so it needs ARM as a registered target. llvm-svn: 209905
* PR19753: Optimize comparisons with "ashr exact" of a constanst.Rafael Espindola2014-05-302-0/+25
| | | | | | Patch by suyog sarda. llvm-svn: 209903
* [pr19636] Fix known bit computation in urem instruction with power of two.Rafael Espindola2014-05-302-2/+19
| | | | | | Patch by Andrey Kuharev. llvm-svn: 209902
* SelectionDAG: skip barriers for unordered atomic operationsTim Northover2014-05-302-14/+27
| | | | | | | | | Unordered is strictly weaker than monotonic, so if the latter doesn't have any barriers then the former certainly shouldn't. rdar://problem/16548260 llvm-svn: 209901
* ARM: use AAPCS-style prologues for embedded MachO.Tim Northover2014-05-305-28/+29
| | | | | | | | | | | | | | | Darwin prologues save their GPRs in two stages: a narrow push of r0-r7 & lr, followed by a wide push of the remaining registers if there are any. AAPCS uses a single push.w instruction. It turns out that, on average, enough registers get pushed that code is smaller in the AAPCS prologue, which is a nice property for M-class programmers. They also have other options available for back-traces, so can hopefully deal with the fact that FP & LR aren't adjacent in memory. rdar://problem/15909583 llvm-svn: 209895
* MachO: support N_INDR aliases in assembly files.Tim Northover2014-05-307-13/+168
| | | | | | | | | This makes LLVM create N_INDR aliases (to be resolved by the linker) when appropriate. rdar://problem/15125513 llvm-svn: 209894
* AArch64 & ARM: disable generic test that relies on no CFG changes.Tim Northover2014-05-301-0/+3
| | | | llvm-svn: 209885
* ARM & AArch64: make use of common cmpxchg idioms after expansionTim Northover2014-05-3059-87/+347
| | | | | | | | | | | | | | | | | | | | | | | | The C and C++ semantics for compare_exchange require it to return a bool indicating success. This gets mapped to LLVM IR which follows each cmpxchg with an icmp of the value loaded against the desired value. When lowered to ldxr/stxr loops, this extra comparison is redundant: its results are implicit in the control-flow of the function. This commit makes two changes: it replaces that icmp with appropriate PHI nodes, and then makes sure earlyCSE is called after expansion to actually make use of the opportunities revealed. I've also added -{arm,aarch64}-enable-atomic-tidy options, so that existing fragile tests aren't perturbed too much by the change. Many of them either rely on undef/unreachable too pervasively to be restored to something well-defined (particularly while making sure they test the same obscure assert from many years ago), or depend on a particular CFG shape, which is disrupted by SimplifyCFG. rdar://problem/16227836 llvm-svn: 209883
* AArch64 & ARM: remove undefined behaviour from some tests.Tim Northover2014-05-3013-62/+66
| | | | llvm-svn: 209880
* Test cases named with dates is a legacy rule not used now. Rename several ↵Hao Liu2014-05-304-0/+0
| | | | | | test cases. llvm-svn: 209877
* Allow vectorization of intrinsics such as powi,cttz and ctlz in Loop and SLP ↵Karthik Bhat2014-05-305-2/+426
| | | | | | | | | | Vectorizer. This patch adds support to vectorize intrinsics such as powi, cttz and ctlz in Vectorizer. These intrinsics are different from other intrinsics as second argument to these function must be same in order to vectorize them and it should be represented as a scalar. Review: http://reviews.llvm.org/D3851#inline-32769 and http://reviews.llvm.org/D3937#inline-32857 llvm-svn: 209873
* Add a trivial ArrayRef helper overload to the SelectionDAG interface.Chandler Carruth2014-05-301-0/+6
| | | | | | | I'm using this pretty frequently in a patch I'm working on and it seems generally useful. llvm-svn: 209872
* Remove use of comma operator.Richard Trieu2014-05-301-2/+5
| | | | llvm-svn: 209871
* When analyzing params/args for readnone/readonly, don't forget to consider ↵Nick Lewycky2014-05-303-2/+33
| | | | | | that a pointer argument may be passed through a callsite to the return, and that we may need to analyze it. Fixes a bug reported on llvm-dev: http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-May/073098.html llvm-svn: 209870
* [X86] Move test from r209863 to CodeGen/X86Adam Nemet2014-05-291-0/+0
| | | | | | We should only run this if X86 is in the targets. llvm-svn: 209866
* [X86] Remove AVX1 vbroadcast intrinsicsAdam Nemet2014-05-293-48/+17
| | | | | | | | | | | | | | | | | | | | | The corresponding CFE patch replaces these intrinsics with vector initializers in avxintrin.h. This patch removes the LLVM intrinsics from the backend. We now stop lowering at X86ISD::VBROADCAST custom node rather than lowering that further to the intrinsics. The patch only changes VBROADCASTS* and leaves VBROADCAST[FI]128 to continue to use intrinsics. As explained in the CFE patch, the reason is that we currently don't generate as good code for them without the intrinsics. CodeGen/X86/avx-vbroadcast.ll already provides coverage for this change. It checks that for a series of insertelements we generate the appropriate vbroadcast instruction. Also verified that there was no assembly change in the test-suite before and after this patch. llvm-svn: 209864
* [X86] Auto-upgrade AVX1 vbroadcast intrinsicsAdam Nemet2014-05-292-0/+57
| | | | | | | | | | | | | They are replaced with the same IR that is generated for the vector-initializers in avxintrin.h. The test verifies that we get back the original instruction. I haven't seen this approach to be used in other auto-upgrade tests (i.e. llc + FileCheck) but I think it's the most direct way to test this case. I believe this should work because llc upgrades calls during parsing. (Other tests mostly check that assembling and disassembling yields the upgraded IR.) llvm-svn: 209863
* And fix my fix to sink down through the type at the right time. MyChandler Carruth2014-05-291-8/+9
| | | | | | | | | original fix would actually trigger the *exact* same crasher as the original bug for a different reason. Awesomesauce. Working on test cases now, but wanted to get bots healthier. llvm-svn: 209860
* Fix one bug in the latest incarnation of r209843 -- combining GEPsChandler Carruth2014-05-291-8/+13
| | | | | | | | | | across PHI nodes. The code was computing the Idxs from the 'GEP' variable's indices when what it wanted was Op1's indices. This caused an ASan heap-overflow for me that pin pointed the issue when Op1 had more indices than GEP did. =] I'll let Louis add a specific test case for this if he wants. llvm-svn: 209857
* Sync list of targets with configure's realityJeroen Ketema2014-05-291-8/+6
| | | | llvm-svn: 209855
* LoopVectorizer: Add a check that the backedge taken count + 1 does not overflowArnold Schwaighofer2014-05-293-34/+123
| | | | | | | | | | | The loop vectorizer instantiates be-taken-count + 1 as the loop iteration count. If this expression overflows the generated code was invalid. In case of overflow the code now jumps to the scalar loop. Fixes PR17288. llvm-svn: 209854
* Added tests for shufflevector lowering to blend instrs.Filipe Cabecinhas2014-05-293-0/+69
| | | | | | | | | | | | | | | | | | | | These tests ensure that a change I will propose in clang works as expected. Summary: Added tests for the generation of blend+immediate instructions from a shufflevector. These tests were proposed along with a patch that was dropped. I'm committing the tests anyway to protect against possible regressions in codegen. Reviewers: nadav, bkramer Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D3600 llvm-svn: 209853
* Add support for combining GEPs across PHI nodesLouis Gerbarg2014-05-292-0/+135
| | | | | | | | | | | | | | | | | | | | | | | | Currently LLVM will generally merge GEPs. This allows backends to use more complex addressing modes. In some cases this is not happening because there is PHI inbetween the two GEPs: GEP1--\ |-->PHI1-->GEP3 GEP2--/ This patch checks to see if GEP1 and GEP2 are similiar enough that they can be cloned (GEP12) in GEP3's BB, allowing GEP->GEP merging (GEP123): GEP1--\ --\ --\ |-->PHI1-->GEP3 ==> |-->PHI2->GEP12->GEP3 == > |-->PHI2->GEP123 GEP2--/ --/ --/ This also breaks certain use chains that are preventing GEP->GEP merges that the the existing instcombine would merge otherwise. Tests included. llvm-svn: 209843
* Update Credits.Chad Rosier2014-05-291-2/+12
| | | | llvm-svn: 209840
* implement missing SCEVDivision caseSebastian Pop2014-05-291-0/+9
| | | | | | | | without this case we would end on an infinite recursion: the remainder is zero, so Numerator - Remainder is equal to Numerator and so we would recursively ask for the division of Numerator by Denominator. llvm-svn: 209838
* fail to find dimensions when ElementSize is nullptrSebastian Pop2014-05-291-1/+1
| | | | | | | | when ScalarEvolution::getElementSize returns nullptr it is safe to early return in ScalarEvolution::findArrayDimensions such that we avoid later problems when we try to divide the terms by ElementSize. llvm-svn: 209837
* Use range-based for loops in ASan, TSan and MSanAlexey Samsonov2014-05-293-97/+81
| | | | llvm-svn: 209834
* [ADT] Delete the Twine assignment operatorReid Kleckner2014-05-291-0/+4
| | | | | | | | | This makes it slightly harder to misuse Twines. It is still possible to refer to destroyed temporaries with the regular constructors, though. Patch by Marco Alesiani! llvm-svn: 209832
* Debug Info: Remove unused code. The MInsn of an _abstract_ variable isAdrian Prantl2014-05-291-2/+0
| | | | | | | never used again and updating the abstract variable for each inlined instance of it was questionable in the first place. llvm-svn: 209829
* Rename alias variables to make it easier to add new tests to the file.Rafael Espindola2014-05-291-10/+10
| | | | llvm-svn: 209822
* [PPC] Use alias symbols in address computation.Rafael Espindola2014-05-293-34/+48
| | | | | | | | | | | This seems to match what gcc does for ppc and what every other llvm backend does. This is a fixed version of r209638. The difference is to avoid any change in behavior for functions. The logic for using constant pools for function addresseses is spread over a few places and we have to keep them in sync. llvm-svn: 209821
* Add a test showing the ppc code sequence for getting a function pointer.Rafael Espindola2014-05-291-0/+21
| | | | | | This would have found the miscompile in r209638. llvm-svn: 209820
* Revert "Revert "Revert "InstCombine: Improvement to check if signed addition ↵Rafael Espindola2014-05-292-100/+6
| | | | | | | | | | overflows.""" This reverts commit r209776. It was miscompiling llvm::SelectionDAGISel::MorphNode. llvm-svn: 209817
* Restore getInvertedCondCode() from the phased-out backend, fixing ↵Artyom Skrobov2014-05-292-19/+7
| | | | | | disassembly for NV llvm-svn: 209803
* Add missing check when MatchInstructionImpl() reports failureArtyom Skrobov2014-05-292-0/+6
| | | | llvm-svn: 209802
* [elf2yaml][ELF] Move Info field to the RelocationSection structure. ThisSimon Atanasyan2014-05-294-14/+27
| | | | | | | field represents ELF section header sh_info field and does not have any sense for regular sections. Its interpretation depends on section type. llvm-svn: 209801
* Rename a test case to contain correct date info.Hao Liu2014-05-291-0/+0
| | | | llvm-svn: 209799
* Fix an assertion failure caused by v1i64 in DAGCombiner Shrink.Hao Liu2014-05-293-16/+27
| | | | llvm-svn: 209798
* LCSSA should be performed on the outermost affected loop while unrolling loop.Dinesh Dwivedi2014-05-292-0/+52
| | | | | | | | | | During loop-unroll, loop exits from the current loop may end up in in different outer loop. This requires to re-form LCSSA recursively for one level down from the outer most loop where loop exits are landed during unroll. This fixes PR18861. Differential Revision: http://reviews.llvm.org/D2976 llvm-svn: 209796
* [LoadCombine] Missed a file.Michael J. Spencer2014-05-291-0/+1
| | | | llvm-svn: 209792
* Add LoadCombine pass.Michael J. Spencer2014-05-298-0/+503
| | | | | | | | This pass is disabled by default. Use -combine-loads to enable in -O[1-3] Differential revision: http://reviews.llvm.org/D3580 llvm-svn: 209791
* [ASan] Hoist blacklisting globals from init-order checking to Clang.Alexey Samsonov2014-05-291-2/+0
| | | | | | | | | Clang knows about the sanitizer blacklist and it makes no sense to add global to the list of llvm.asan.dynamically_initialized_globals if it will be blacklisted in the instrumentation pass anyway. Instead, we should do as much blacklisting as possible (if not all) in the frontend. llvm-svn: 209790
* [x86] Fold extract_vector_elt of a load into the Load's address computation.Michael J. Spencer2014-05-292-91/+143
| | | | | | | | An address only use of an extract element of a load can be simplified to a load. Without this the result of the extract element is spilled to the stack so that an address is available. llvm-svn: 209788
* R600/SI: Fix pattern variable names.Matt Arsenault2014-05-291-2/+2
| | | | | | | These are confusing enough since the order swaps, so give them more useful names. llvm-svn: 209787
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