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* MIR Serialization: Serialize physical register machine operands.Alex Lorenz2015-06-234-4/+213
| | | | | | | | | | | This commit introduces functionality that's used to serialize machine operands. Only the physical register operands are serialized by this commit. Reviewers: Duncan P. N. Exon Smith Differential Revision: http://reviews.llvm.org/D10525 llvm-svn: 240425
* [ARM] ARMLoadStoreOpt::UpdateBaseRegUses should stop on defJohn Brawn2015-06-231-1/+1
| | | | | | | | | | | | When UpdateBaseRegUses sees an instruction that defines the base register it must stop, as the base register value it is updating is no longer live. Ideally we would already have seen the register be killed (which is already checked for), but the kill flags may be inaccurate and we have to account for this. Differential Revision: http://reviews.llvm.org/D10566 llvm-svn: 240424
* SystemZ: Avoid left shifting negative values (it's UB)Justin Bogner2015-06-231-4/+4
| | | | | | Found by ubsan. llvm-svn: 240420
* [Option] Plug a leak when move-assigning an InputArgList.Benjamin Kramer2015-06-231-6/+6
| | | | | | | | The class has a non-trivial dtor so we have to clean up before we move in new members. Remove misleading comment as a default move assignment operator will never be synthesized for this class. llvm-svn: 240417
* Make helper functions static. NFC.Benjamin Kramer2015-06-232-4/+5
| | | | llvm-svn: 240416
* [BranchFolding] Document why replacing HashMachineInstr with hash_code ↵Benjamin Kramer2015-06-231-1/+3
| | | | | | doesn't work llvm-svn: 240415
* [MachineBasicBlock] Add getFirstNonDebugInstr to complement getLastNonDebugInstrBenjamin Kramer2015-06-234-70/+30
| | | | | | Use it in CodeGen where applicable. No functionality change intended. llvm-svn: 240414
* [MachineBasicBlock] Use the const_cast(this) trick to reduce duplicationBenjamin Kramer2015-06-231-25/+0
| | | | | | NFC. llvm-svn: 240413
* Be sure to set the DataLayout before checking the cache.Rafael Espindola2015-06-231-2/+2
| | | | | | | | This makes sure the same mangling is used. Should fix the OS X bots. llvm-svn: 240411
* [mips] [IAS] Add partial support for the ULHU pseudo-instruction.Toma Tabacu2015-06-232-0/+114
| | | | | | | | | | | | | | | | Summary: This only adds support for ULHU of an immediate address with/without a source register. It does not include support for ULHU of the address of a symbol. Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D9671 llvm-svn: 240410
* Remove unused arguments and move ManglerPrefixTy to the implementation.Rafael Espindola2015-06-231-13/+25
| | | | llvm-svn: 240408
* [mips] [IAS] Add support for generating DADDu to createAddu(). NFC.Toma Tabacu2015-06-231-7/+7
| | | | | | | | | | | | | | Summary: This isn't used right now, but it will be in some upcoming changes. Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10568 llvm-svn: 240407
* Simplify the Mangler interface now that DataLayout is mandatory.Rafael Espindola2015-06-2311-37/+28
| | | | | | | We only need to pass in a DataLayout when mangling a raw string, not when constructing the mangler. llvm-svn: 240405
* [mips64] Emit correct addend for some PC-relative relocationsPetar Jovanovic2015-06-233-13/+10
| | | | | | | | | | | So far, LLVM has not emitted correct addend for N64 and N32 ABI. This patch fixes that. It also removes fixup from MCJIT for R_MIPS_PC16 relocation. Patch by Vladimir Radosavljevic. Differential Revision: http://reviews.llvm.org/D10565 llvm-svn: 240404
* [Hexagon] Use MF reference from parent class in HexagonPacketizerListKrzysztof Parzyszek2015-06-231-10/+7
| | | | llvm-svn: 240403
* [mips] [IAS] Move some function definitions to MipsTargetStreamer.cpp. NFC.Toma Tabacu2015-06-232-8/+13
| | | | | | | | | | | | | | Summary: For the sake of consistency and to make some upcoming changes a little less noisy. Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10639 llvm-svn: 240398
* Use MCSymbols for FastISel.Rafael Espindola2015-06-238-31/+72
| | | | | | | | | | | The summary is that it moves the mangling earlier and replaces a few calls to .addExternalSymbol with addSym. I originally wanted to replace all the uses of addExternalSymbol with addSym, but noticed it was a lot of work and doesn't need to be done all at once. llvm-svn: 240395
* Revert r240302 ("Bring r240130 back.").Daniel Jasper2015-06-233-25/+19
| | | | | | | | | | | | | This causes errors like: ld: error: blah.o: requires dynamic R_X86_64_PC32 reloc against '' which may overflow at runtime; recompile with -fPIC blah.cc:function f(): error: undefined reference to '' blah.o:g(): error: undefined reference to '' I have not yet come up with an appropriate reproduction. llvm-svn: 240394
* Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)Alexander Kornienko2015-06-23547-713/+713
| | | | | | Apparently, the style needs to be agreed upon first. llvm-svn: 240390
* AVX-512: Added all forms of VPABS instructionElena Demikhovsky2015-06-235-71/+105
| | | | | | Added all intrinsics, tests for encoding, tests for intrinsics. llvm-svn: 240386
* MCExpr: Avoid UB by evaluating this shift as unsignedJustin Bogner2015-06-231-1/+1
| | | | | | | | We hit undefined behaviour in some MCExpr tests when the LHS of a left shift is -1. Twos-complement semantics are completely reasonable here, so we should just do the shift in unsigned. llvm-svn: 240385
* [mips] Fix some UB by shifting before sign-extendingJustin Bogner2015-06-231-1/+1
| | | | | | | | Avoid shifting a negative value by sign-extending after the shift. Fixes a couple of tests that were failing under ubsan. llvm-svn: 240381
* Fix PR13851: Preserve metadata for the unswitched branchWeiming Zhao2015-06-231-20/+67
| | | | | | | This patch copies the metadata of the unswitched branch to the newly crreated branch in loop unswitch pass. llvm-svn: 240378
* Handle multiple symbols having the same address.Rafael Espindola2015-06-231-1/+9
| | | | | | I will add an explicit test in a second, but this fixes the bots. llvm-svn: 240372
* [InstCombine] Optimize subtract of selects into a select of a subDavid Majnemer2015-06-231-0/+26
| | | | | | | This came up when examining some code generated by clang's IRGen for certain member pointers. llvm-svn: 240369
* Extract an utility for computing symbol sizes on MachO and COFF.Rafael Espindola2015-06-232-0/+89
| | | | | | I will add a second user in the next commit. llvm-svn: 240366
* AMDGPU: Use getAsInteger instead of atoiMatt Arsenault2015-06-231-3/+5
| | | | llvm-svn: 240365
* [FaultMaps] Move FaultMapParser to Object/Sanjoy Das2015-06-233-36/+62
| | | | | | | | | | | | | | | | | | Summary: That way llvm-objdump can rely on it without adding an extra dependency on CodeGen. This change duplicates the FaultKind enum and the code that serializes it to a string. I could not figure out a way to get around this without adding a new dependency to Object Reviewers: rafael, ab Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10619 llvm-svn: 240364
* [x86] generalize reassociation optimization in machine combiner to 2 ↵Sanjay Patel2015-06-232-95/+118
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | instructions Currently ( D10321, http://reviews.llvm.org/rL239486 ), we can use the machine combiner pass to reassociate the following sequence to reduce the critical path: A = ? op ? B = A op X C = B op Y --> A = ? op ? B = X op Y C = A op B 'op' is currently limited to x86 AVX scalar FP adds (with fast-math on), but in theory, it could be any associative math/logic op (see TODO in code comment). This patch generalizes the pattern match to ignore the instruction that defines 'A'. So instead of a sequence of 3 adds, we now only need to find 2 dependent adds and decide if it's worth reassociating them. This generalization has a compile-time cost because we can now match more instruction sequences and we rely more heavily on the machine combiner to discard sequences where reassociation doesn't improve the critical path. For example, in the new test case: A = M div N B = A add X C = B add Y We'll match 2 reassociation patterns, but this transform doesn't reduce the critical path: A = M div N B = A add Y C = B add X We need the combiner to reject that pattern but select this: A = M div N B = X add Y C = B add A Differential Revision: http://reviews.llvm.org/D10460 llvm-svn: 240361
* Re-apply "InstrProf: When reading, copy the data instead of taking a ↵Justin Bogner2015-06-221-47/+65
| | | | | | | | | | | | | | reference. NFC" This version fixes a missing include that MSVC noticed and clarifies the ownership of the counter buffer that's passed to InstrProfRecord. This restores r240206, which was reverted in r240208. Patch by Betul Buyukkurt. llvm-svn: 240360
* Fix PR23914.Evgeniy Stepanov2015-06-221-1/+1
| | | | | | | r226830 moved the declaration of Buf to a nested scope, resulting in a dangling reference (in StringRef Name), and a use-after-free. llvm-svn: 240357
* Code cleanup: Remove std::move() around xvalue (NFC)Logan Chien2015-06-221-1/+1
| | | | | | | | | | | Remove std::move() around xvalue so that copy elision is eligible. In case that copy elision is not appliable, the c++ standard also guarantees the move semantics on xvalue. Thus, it is not necessary to wrap Args with std::move. This also silence a warning since r240345. llvm-svn: 240355
* [LoopDist] Improve variable names and comments in LoopVersioning class, NFCAdam Nemet2015-06-221-25/+29
| | | | | | | | As with the previous patch, the goal is to turn the class into a general loop-versioning class. This patch removes any references to loop distribution. llvm-svn: 240352
* Modify ParseArgs to return the InputArgList by value - there's no need for ↵David Blaikie2015-06-222-21/+21
| | | | | | | | | | | | dynamic allocation/ownership here The one caller that does anything other than keep this variable on the stack is the single use of DerivedArgList in Clang, which is a bit more interesting but can probably be cleaned up/simplified a bit further (have DerivedArgList take ownership of the InputArgList rather than needing to reference its Args indirectly) which I'll try to after this. llvm-svn: 240345
* Revert r240291: causes problems in self-hosted builds.Pawel Bylica2015-06-221-1/+1
| | | | llvm-svn: 240343
* [X86][FMA4] FMA4 ops can perform unaligned folded loads.Simon Pilgrim2015-06-221-64/+64
| | | | llvm-svn: 240342
* Linker: Do not expect comdat to exist in source module.Peter Collingbourne2015-06-221-2/+2
| | | | llvm-svn: 240341
* Fix line endings (NFC)Joseph Tremoulet2015-06-222-40/+40
| | | | | | | I inadvertently checked these in with Windows-style line endings in r240288. llvm-svn: 240340
* [Object] Search for architecures by name in ↵Frederic Riss2015-06-223-20/+8
| | | | | | | | | | | | | | | | | | | | | | | | MachOUniversalBinary::getObjectForArch() The reason we need to search by name rather than by Triple::ArchType is to handle subarchitecture correclty. There is no different ArchType for the x86_64h architecture (it identifies itself as x86_64), or for the various ARM subarches. The only way to get to the subarch slice in an universal binary is to search by name. This issue led to hard to debug and transient symbolication failures in Asan tests (it mostly works, because the files are very similar). This also affects the Profiling infrastucture as it is the other user of that API. Reviewers: samsonov, bogner Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10604 llvm-svn: 240339
* R600/SI: Use ELF64 format instead of ELF32Tom Stellard2015-06-223-9/+16
| | | | | | | | | | Reviewers: arsenm, rafael Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10392 llvm-svn: 240331
* R600: Use EM_AMDGPU for the ELF Machine typeTom Stellard2015-06-221-1/+1
| | | | | | | | | | Reviewers: arsenm, rafael Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10390 llvm-svn: 240330
* [X86] Teach load folding to accept scalar _Int users of MOVSS/MOVSD.Ahmed Bougacha2015-06-221-10/+46
| | | | | | | | | | | | | | | | | | | The _Int instructions are special, in that they operate on the full VR128 instead of FR32. The load folding then looks at MOVSS, at the user, and bails out when it sees a size mismatch. What we really know is that the rm_Int instructions don't load the higher lanes, so folding is fine. This happens for the straightforward intrinsic code, e.g.: _mm_add_ss(a, _mm_load_ss(p)); Fixes PR23349. Differential Revision: http://reviews.llvm.org/D10554 llvm-svn: 240326
* MIR Serialization: Introduce a lexer for machine instructions.Alex Lorenz2015-06-224-11/+193
| | | | | | | | | | | | This commit adds a function that tokenizes the string containing the machine instruction. This commit also adds a struct called 'MIToken' which is used to represent the lexer's tokens. Reviewers: Sean Silva Differential Revision: http://reviews.llvm.org/D10521 llvm-svn: 240323
* SafeStack: Create the unsafe stack pointer on demand.Peter Collingbourne2015-06-221-3/+4
| | | | | | | This avoids creating an unnecessary undefined reference on targets such as NVPTX that require such references to be declared in asm output. llvm-svn: 240321
* Move MCSymbol Value in to the union of Offset and CommonSize.Pete Cooper2015-06-221-0/+4
| | | | | | | | | | | | | | | | This is a reapplication of r239440 which was reverted in r239441. There are no changes to this patch from then, but this had instead exposed a bug in .thumb_set which was fixed in r240318. Having fixed that bug, it is now safe to re-apply this code. Original commit message below: It wasn't possible to have a variable Symbol with offset or 'isCommon' so this just enables better packing of the MCSymbol class. Reviewed by Rafael Espindola. llvm-svn: 240320
* Change .thumb_set to have the same error checks as .set.Pete Cooper2015-06-222-84/+112
| | | | | | | | | | | | | | According to the documentation, .thumb_set is 'the equivalent of a .set directive'. We didn't have equivalent behaviour in terms of all the errors we could throw, for example, when a symbol is redefined. This change refactors parseAssignment so that it can be used by .set and .thumb_set and implements tests for .thumb_set for all the errors thrown by that method. Reviewed by Rafael Espíndola. llvm-svn: 240318
* [x86] set default reciprocal (division and square root) codegen to match GCCSanjay Patel2015-06-221-6/+9
| | | | | | | | | | | | | | | | D8982 ( checked in at http://reviews.llvm.org/rL239001 ) added command-line options to allow reciprocal estimate instructions to be used in place of divisions and square roots. This patch changes the default settings for x86 targets to allow that recip codegen (except for scalar division because that breaks too much code) when using -ffast-math or its equivalent. This matches GCC behavior for this kind of codegen. Differential Revision: http://reviews.llvm.org/D10396 llvm-svn: 240310
* Fix MSVC build.Sanjoy Das2015-06-221-4/+3
| | | | | | | | I had some unnecessary `typename`s left in after addressing review. This compiled successfully with clang++ but MSVC reported an error. Fix the build error by removing the redundant `typename`s. llvm-svn: 240307
* Remove the IsStreamed member variable.Rafael Espindola2015-06-221-15/+9
| | | | | | | | | | | | | | | | | | Having different code paths for streamed and regular bitcode reading was a source of bugs in the past and this defines them away. It has a small but noticeable impact on performance. I timed running "opt -disable-output -disable-verify" on a ltoed clang. It goes from 14.752845231 seconds time elapsed ( +- 0.16% ) to 15.012463721 seconds time elapsed ( +- 0.11% ) Extracted from a patch by Karl Schimpf. llvm-svn: 240305
* [FaultMaps] Add a parser for the __llvm__faultmaps section.Sanjoy Das2015-06-221-0/+37
| | | | | | | | | | | | | | | Summary: The parser is exercised by llvm-objdump using -print-fault-maps. As is probably obvious, the code itself was "heavily inspired" by http://reviews.llvm.org/D10434. Reviewers: reames, atrick, JosephTremoulet Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10491 llvm-svn: 240304
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