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* Switch to LLVM support function abs64 to keep VS2008 happy.Tim Northover2013-03-271-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178141 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow the register scavenger to spill multiple registersHal Finkel2013-03-221-1/+1
| | | | | | | | | | | | | | | | | | This patch lets the register scavenger make use of multiple spill slots in order to guarantee that it will be able to provide multiple registers simultaneously. To support this, the RS's API has changed slightly: setScavengingFrameIndex / getScavengingFrameIndex have been replaced by addScavengingFrameIndex / isScavengingFrameIndex / getScavengingFrameIndices. In forthcoming commits, the PowerPC backend will use this capability in order to implement the spilling of condition registers, and some special-purpose registers, without relying on r0 being reserved. In some cases, spilling these registers requires two GPRs: one for addressing and one to hold the value being transferred. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177774 91177308-0d34-0410-b5e6-96231b3b80d8
* Silence anonymous type in anonymous union warnings.Eric Christopher2013-03-151-37/+46
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177135 91177308-0d34-0410-b5e6-96231b3b80d8
* Move estimateStackSize from ARM into MachineFrameInfoHal Finkel2013-03-141-54/+1
| | | | | | | | | | This is a generic function (derived from PEI); moving it into MachineFrameInfo eliminates a current redundancy between the ARM and AArch64 backends, and will allow it to be used by the PowerPC target code. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177111 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: expand sincos operations, we don't support them.Tim Northover2013-03-081-0/+3
| | | | | | Patch based on Mans Rullgard's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176688 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: remove post-encoder method from FCMP (immediate) instructions.Tim Northover2013-02-283-27/+30
| | | | | | | | The work done by the post-encoder (setting architecturally unused bits to 0 as required) can be done by the existing operand that covers the "#0.0". This removes at least one use of the discouraged PostEncoderMethod uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176261 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: be more careful resorting to inefficient addressing for weak vars.Tim Northover2013-02-281-5/+4
| | | | | | | | If an otherwise weak var is actually defined in this unit, it can't be undefined at runtime so we can use normal global variable sequences (ADRP/ADD) to access it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176259 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: don't drop GlobalAddress offset when handling extern_weak decls.Tim Northover2013-02-281-4/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176258 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: Use cbnz instead of cmp/b.ne pair for atomic operations.Tim Northover2013-02-282-23/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176253 91177308-0d34-0410-b5e6-96231b3b80d8
* TypoFrancois Pichet2013-02-241-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175991 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the eliminateCallFramePseudoInstr method from TargetRegisterInfoEli Bendersky2013-02-214-42/+44
| | | | | | | | | | | | | | | | | to TargetFrameLowering, where it belongs. Incidentally, this allows us to delete some duplicated (and slightly different!) code in TRI. There are potentially other layering problems that can be cleaned up as a result, or in a similar manner. The refactoring was OK'd by Anton Korobeynikov on llvmdev. Note: this touches the target interfaces, so out-of-tree targets may be affected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175788 91177308-0d34-0410-b5e6-96231b3b80d8
* MCParser: Update method names per coding guidelines.Jim Grosbach2013-02-201-8/+8
| | | | | | | | | | | | | | | | | | | s/AddDirectiveHandler/addDirectiveHandler/ s/ParseMSInlineAsm/parseMSInlineAsm/ s/ParseIdentifier/parseIdentifier/ s/ParseStringToEndOfStatement/parseStringToEndOfStatement/ s/ParseEscapedString/parseEscapedString/ s/EatToEndOfStatement/eatToEndOfStatement/ s/ParseExpression/parseExpression/ s/ParseParenExpression/parseParenExpression/ s/ParseAbsoluteExpression/parseAbsoluteExpression/ s/CheckForValidSection/checkForValidSection/ http://llvm.org/docs/CodingStandards.html#name-types-functions-variables-and-enumerators-properly No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175675 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some unused private fields from the AArch64MCCodeEmitter. TheseChandler Carruth2013-02-191-7/+2
| | | | | | | | | | fields were only ever set in the constructor. The create method retains its consistent interface so that these bits can be re-threaded through the emitter if they're ever needed. This was found by the -Wunused-private-field Clang warning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175482 91177308-0d34-0410-b5e6-96231b3b80d8
* Use LLVM_DELETED_FUNCTION rather than '// do not implement' comments.David Blaikie2013-02-181-2/+2
| | | | | | | Also removes some redundant DNI comments on function declarations already using the macro. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175466 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: Avoid shifts by 64, that's undefined behavior.Benjamin Kramer2013-02-171-3/+3
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175400 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: add branch fixup pass.Tim Northover2013-02-156-0/+652
| | | | | | | | | | | | | This is essentially a stripped-down version of the ConstandIslands pass (which always had these two functions), providing just the features necessary for correctness. In particular there needs to be a way to resolve the situation where a conditional branch's destination block ends up out of range. This issue crops up when self-hosting for AArch64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175269 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: remove ConstantIsland pass & put literals in separate section.Tim Northover2013-02-1512-1610/+83
| | | | | | | | This implements the review suggestion to simplify the AArch64 backend. If we later discover that we *really* need the extra complexity of the ConstantIslands pass for performance reasons it can be resurrected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175258 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: refactor frame handling to use movz/movk for overlarge offsets.Tim Northover2013-02-151-12/+29
| | | | | | | | In the near future litpools will be in a different section, which means that any access to them is at least two instructions. This makes the case for a movz/movk pair (if total offset <= 32-bits) even more compelling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175257 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: switch from neverHasSideEffects to hasSideEffects.Tim Northover2013-02-141-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175176 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: stop claiming that NEON registers are usable for now.Tim Northover2013-02-141-11/+0
| | | | | | | | | | If vector types have legal register classes, then LLVM bypasses LegalizeTypes on them, which causes faults currently since the code to handle them isn't in place. This fixes test failures when AArch64 is the default target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175172 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: add block comments where missingTim Northover2013-02-1419-11/+86
| | | | | | Only comments affected. No code change at all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175169 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: fix build on some MSVC versionsTim Northover2013-02-111-3/+3
| | | | | | | | | | | | | | | This does two things: It removes a call to abs() which may have "long long" parameter on Windows, which is not necessarily available in C++03. It also corrects the signedness of Amount, which was relying on implementation-defined conversions previously. Code was already tested (albeit in an implemnetation defined way) so no extra tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174885 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: Simplify logic in deciding whether bfi is validTim Northover2013-02-111-6/+1
| | | | | | | | Previous code had a confusing comment which was mostly an implementation detail. This condition corresponds to "lsb up to register width" and "width not ridiculous". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174877 91177308-0d34-0410-b5e6-96231b3b80d8
* Make use of DiagnosticType to provide better AArch64 diagnostics.Tim Northover2013-02-112-18/+218
| | | | | | | | | This gives a DiagnosticType to all AsmOperands in sight. This replaces all "invalid operand" diagnostics with something more specific. The messages given should still be sufficiently vague that they're not usually actively misleading when LLVM guesses your instruction incorrectly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174871 91177308-0d34-0410-b5e6-96231b3b80d8
* Spelling correctionJoel Jones2013-02-101-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174852 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement external weak (ELF) symbols on AArch64Tim Northover2013-02-062-4/+17
| | | | | | | | | Weakly defined symbols should evaluate to 0 if they're undefined at link-time. This is impossible to do with the usual address generation patterns, so we should use a literal pool entry to materlialise the address. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174518 91177308-0d34-0410-b5e6-96231b3b80d8
* Add AArch64 CRC32 instructionsTim Northover2013-02-061-1/+19
| | | | | | | | These instructions are a late addition to the architecture, and may yet end up behind an optional attribute, but for now they're available at all times. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174496 91177308-0d34-0410-b5e6-96231b3b80d8
* Add icache prefetch operations to AArch64Tim Northover2013-02-062-0/+12
| | | | | | | This adds hints to the various "prfm" instructions so that they can affect the instruction cache as well as the data cache. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174495 91177308-0d34-0410-b5e6-96231b3b80d8
* Move MRI liveouts to AArch64 return instructions.Jakob Stoklund Olesen2013-02-052-14/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174415 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix signed-unsigned comparison warning.Tim Northover2013-02-051-8/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174387 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix remaining StringRef abuse.Tim Northover2013-02-051-2/+2
| | | | | | This should fix the valgrind buildbot failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174375 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix formatting in AArch64 backend.Tim Northover2013-02-0524-841/+577
| | | | | | | | | | | This should fix three purely whitespace issues: + 80 column violations. + Tab characters. + TableGen brace placement. No functional changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174370 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove cyclic dependency in AArch64 librariesTim Northover2013-02-0523-814/+874
| | | | | | | | This moves the bit twiddling and string fiddling functions required by other parts of the backend into a separate library. Previously they resided in AArch64Desc, which created a circular dependency between various components. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174369 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some abuses of StringRefTim Northover2013-02-041-3/+4
| | | | | | We were taking a StringRef to a temporary result, which can go horribly wrong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174328 91177308-0d34-0410-b5e6-96231b3b80d8
* Give explicit suffix to integer constant over 32-bits.Tim Northover2013-02-041-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174324 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove currently unused register decoder from AArch64.Tim Northover2013-02-011-14/+0
| | | | | | This should fix a warning when building this backend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174177 91177308-0d34-0410-b5e6-96231b3b80d8
* Update AArch64 backend to changed eliminateFrameIndex interface.Tim Northover2013-01-312-13/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174086 91177308-0d34-0410-b5e6-96231b3b80d8
* Add AArch64 as an experimental target.Tim Northover2013-01-3167-0/+22606
This patch adds support for AArch64 (ARM's 64-bit architecture) to LLVM in the "experimental" category. Currently, it won't be built unless requested explicitly. This initial commit should have support for: + Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions (except the late addition CRC instructions). + CodeGen features required for C++03 and C99. + Compilation for the "small" memory model: code+static data < 4GB. + Absolute and position-independent code. + GNU-style (i.e. "__thread") TLS. + Debugging information. The principal omission, currently, is performance tuning. This patch excludes the NEON support also reviewed due to an outbreak of batshit insanity in our legal department. That will be committed soon bringing the changes to precisely what has been approved. Further reviews would be gratefully received. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
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