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* Tidy up. s/Low Level Virtual Machine/LLVM/.Jim Grosbach2012-01-254-8/+7
| | | | | | LLVM isn't an acronym anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148985 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix broken link.Nick Lewycky2012-01-231-1/+1
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* Extend Attributes to 64 bitsKostya Serebryany2012-01-201-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | Problem: LLVM needs more function attributes than currently available (32 bits). One such proposed attribute is "address_safety", which shows that a function is being checked for address safety (by AddressSanitizer, SAFECode, etc). Solution: - extend the Attributes from 32 bits to 64-bits - wrap the object into a class so that unsigned is never erroneously used instead - change "unsigned" to "Attributes" throughout the code, including one place in clang. - the class has no "operator uint64 ()", but it has "uint64_t Raw() " to support packing/unpacking. - the class has "safe operator bool()" to support the common idiom: if (Attributes attr = getAttrs()) useAttrs(attr); - The CTOR from uint64_t is marked explicit, so I had to add a few explicit CTOR calls - Add the new attribute "address_safety". Doing it in the same commit to check that attributes beyond first 32 bits actually work. - Some of the functions from the Attribute namespace are worth moving inside the class, but I'd prefer to have it as a separate commit. Tested: "make check" on Linux (32-bit and 64-bit) and Mac (10.6) built/run spec CPU 2006 on Linux with clang -O2. This change will break clang build in lib/CodeGen/CGCall.cpp. The following patch will fix it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148553 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo.Chad Rosier2012-01-191-1/+1
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* Add a new kind of MachineOperand: MO_RegisterMask.Jakob Stoklund Olesen2012-01-162-0/+19
| | | | | | | | | | | | | | | | | | | | | Register masks will be used as a compact representation of large clobber lists. Currently, an x86 call instruction has some 40 operands representing call-clobbered registers. That's more than 1kB of useless operands per call site. A register mask operand references a bit mask of call-preserved registers, everything else is clobbered. The bit mask will typically come from TargetRegisterInfo::getCallPreservedMask(). By abandoning ImplicitDefs for call-clobbered registers, it also becomes possible to share call instruction descriptions between calling conventions, and we can get rid of the WINCALL* instructions. This patch introduces the new operand kind. Future patches will add RegMask support to target-independent passes before finally the fixed clobber lists can be removed from call instruction descriptions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148250 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding a Hexagon cell for segmented stacks, as they have been implemented ↵Joe Abbey2012-01-161-0/+1
| | | | | | | | | for X86 and not Sparc... Committed as obvious git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148237 91177308-0d34-0410-b5e6-96231b3b80d8
* Try to clarify a little how exception handling works.Duncan Sands2012-01-131-4/+8
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* Revert accidental commit.Bill Wendling2012-01-121-137/+0
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* Fix the code that was WRONG.Bill Wendling2012-01-121-0/+137
| | | | | | | | The registers are placed into the saved registers list in the reverse order, which is why the original loop was written to loop backwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148064 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix dead linkEli Bendersky2012-01-071-1/+1
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* test commit (verifyiing commit access)Eli Bendersky2012-01-051-1/+1
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* Freeze reserved registers before starting register allocation.Jakob Stoklund Olesen2012-01-051-0/+4
| | | | | | | | | | | The register allocators don't currently support adding reserved registers while they are running. Extend the MRI API to keep track of the set of reserved registers when register allocation started. Target hooks like hasFP() and needsStackRealignment() can look at this set to avoid reserving more registers during register allocation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147577 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo.Eric Christopher2012-01-031-1/+1
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* Correct spelling.Duncan Sands2012-01-021-1/+1
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* Happy new year 2012!NAKAMURA Takumi2012-01-011-1/+1
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* Update the LangRef documentation: the codegen does support this instruction.Nadav Rotem2011-12-251-3/+0
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* Add a few lines to the release notes:Nadav Rotem2011-12-201-0/+11
| | | | | | | | | 1. pointer-vector 2. type legalizer changes and vector-select 3. X86 ISA changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146964 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a line to ReleaseNotes for half float.Dan Gohman2011-12-201-0/+1
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* Remove a register class that can just as well be synthesized.Jakob Stoklund Olesen2011-12-191-1/+4
| | | | | | | Add the new TableGen register class synthesizer feature to the release notes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146875 91177308-0d34-0410-b5e6-96231b3b80d8
* The powers that be have decided that LLVM IR should now support 16-bitDan Gohman2011-12-171-4/+6
| | | | | | | | | "half precision" floating-point with a first-class type. This patch adds basic IR support (but not codegen support). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146786 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix spacing.Eric Christopher2011-12-161-3/+3
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* Update documentation.Eric Christopher2011-12-161-0/+1
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* Clarify and fix subprogram description.Devang Patel2011-12-161-1/+1
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* Note ARM constant island alignment in the release notes.Jakob Stoklund Olesen2011-12-161-2/+2
| | | | | | | | The command line option should be removed, but not until the feature has gotten a lot of testing. The ARMConstantIslandPass tends to have subtle bugs that only show up after a while. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146739 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a blurb about MachineInstr bundling support.Evan Cheng2011-12-141-1/+4
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* Add high level description of MachineInstr bundles.Evan Cheng2011-12-141-0/+83
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* Vectors are not aggregate types (see isAggregateType).Duncan Sands2011-12-141-3/+3
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* mention AddressSanitizer in 3.1 release notesKostya Serebryany2011-12-131-0/+1
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* Rip llvm 3.0 out of the release notes, making room for LLVM 3.1Chris Lattner2011-12-131-983/+39
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* Use the example from clang, not the GCC frontend, which doesn't exist anymore.Bill Wendling2011-12-131-24/+25
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* llvm-build: Switch to using the common subdirectory list instead ofDaniel Dunbar2011-12-121-4/+12
| | | | | | autodiscovery. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146437 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-build: Add sketchy support for preserving comments when usingDaniel Dunbar2011-12-121-1/+4
| | | | | | --write-llvmbuild. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146434 91177308-0d34-0410-b5e6-96231b3b80d8
* Hexagon backend supportTony Linthicum2011-12-121-0/+8
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* LLVMBuild: Remove trailing newline, which irked me.Daniel Dunbar2011-12-121-1/+0
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* Update the LangRef documentation for llvm.ctlz and llvm.cttz to specifyChandler Carruth2011-12-121-23/+37
| | | | | | | | | the behavior with the newly added flag for undefined results on a zero input. I'm terrible at documentation, so comments and suggestions welcome here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146361 91177308-0d34-0410-b5e6-96231b3b80d8
* Random cleanups. No description changes.Bill Wendling2011-12-091-14/+14
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* Revert r146041 et al. The FunctionPass doesn't take an address but the ID.Bill Wendling2011-12-091-2/+2
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* Typo.Chad Rosier2011-12-091-1/+1
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* Also pass in correct initializer here.Bill Wendling2011-12-071-1/+1
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* Correct initializer in example.Bill Wendling2011-12-071-1/+1
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* Make Release Notes HTML 4.01 Strict.Jakub Staszak2011-12-061-6/+6
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* Add documentation for machine-independent DFA packetizerAnshuman Dasgupta2011-12-061-0/+75
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* Add link to builtin_expect in Release Notes.Jakub Staszak2011-12-061-2/+3
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* Add link to llvm.expect in Release Notes.Jakub Staszak2011-12-061-2/+3
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* Fix a subtle semantic issue with poison values that came up inDan Gohman2011-12-061-14/+12
| | | | | | | | | | | recent discussions. Poison can't make every value that depends on it act in maximally undefined ways, because the optimizer may still hoist code following the usual rules for undef. Make Poison invoke its full undefined behavior only when it reaches an instruction with externally visible side effects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145913 91177308-0d34-0410-b5e6-96231b3b80d8
* Line up the comments in a code example.Dan Gohman2011-12-061-19/+19
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* Rename "Trap Values" to "Poison Values", to better reflect theirDan Gohman2011-12-061-29/+29
| | | | | | | | purpose, and to avoid ambiguity with other uses of the word "trap" in LangRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145907 91177308-0d34-0410-b5e6-96231b3b80d8
* Move 'returns_twice' definition into alphabetical place.Bill Wendling2011-12-051-6/+6
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* Add support for vectors of pointers.Nadav Rotem2011-12-051-15/+37
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* Fix table of contents.Jakub Staszak2011-12-041-4/+4
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