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* Change the `linker_private_weak_def_auto' linkage to `linkonce_odr_auto_hide' toBill Wendling2012-08-171-10/+9
| | | | | | | | | | | | | | | | | | | | | make it more consistent with its intended semantics. The `linker_private_weak_def_auto' linkage type was meant to automatically hide globals which never had their addresses taken. It has nothing to do with the `linker_private' linkage type, which outputs the symbols with a `l' (ell) prefix among other things. The intended semantic is more like the `linkonce_odr' linkage type. Change the name of the linkage type to `linkonce_odr_auto_hide'. And therefore changing the semantics so that it produces the correct output for the linker. Note: The old linkage name `linker_private_weak_def_auto' will still parse but is not a synonym for `linkonce_odr_auto_hide'. This should be removed in 4.0. <rdar://problem/11754934> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162114 91177308-0d34-0410-b5e6-96231b3b80d8
* [ms-inline asm] Add a new Inline Asm Non-Standard Dialect attribute.Chad Rosier2012-08-101-0/+7
| | | | | | | | | | | | | | This new attribute is intended to be used by the backend to determine how the inline asm string should be parsed/printed. This patch adds the ia_nsdialect attribute and also adds a test case to ensure the IR is correctly parsed, but there is no functional change at this time. The standard dialect is assumed to be AT&T. Therefore, this attribute should only be added to MS-style inline assembly statements, which use the Intel dialect. If we ever support more dialects we'll need to add additional state to the attribute. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161641 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a floor intrinsic.Dan Gohman2012-07-261-0/+35
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160791 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix two typos in the docSylvestre Ledru2012-07-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160762 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo (the the => the)Sylvestre Ledru2012-07-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160621 91177308-0d34-0410-b5e6-96231b3b80d8
* Apparently it's possible to do an 'invoke asm'.Nuno Lopes2012-07-171-2/+3
| | | | | | Update the language reference to reflect that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160408 91177308-0d34-0410-b5e6-96231b3b80d8
* add @llvm.donothingNuno Lopes2012-07-051-2/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159758 91177308-0d34-0410-b5e6-96231b3b80d8
* Document the llvm.fabs intrinsic.Peter Collingbourne2012-07-031-0/+35
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159657 91177308-0d34-0410-b5e6-96231b3b80d8
* Extend the IL for selecting TLS models (PR9788)Hans Wennborg2012-06-231-2/+32
| | | | | | | | | | | | | | | This allows the user/front-end to specify a model that is better than what LLVM would choose by default. For example, a variable might be declared as @x = thread_local(initialexec) global i32 42 if it will not be used in a shared library that is dlopen'ed. If the specified model isn't supported by the target, or if LLVM can make a better choice, a different model may be used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159077 91177308-0d34-0410-b5e6-96231b3b80d8
* revert r158660, since Chris has some issues with this patch (namely using ↵Nuno Lopes2012-06-181-44/+0
| | | | | | | | | | | code to reprent information only used by the compiler) Original commit msg: add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers. This metadata can be attached to any instruction returning a pointer git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158688 91177308-0d34-0410-b5e6-96231b3b80d8
* add the 'alloc' metadata node to represent the size of offset of buffers ↵Nuno Lopes2012-06-181-0/+44
| | | | | | | | | pointed to by pointers. This metadata can be attached to any instruction returning a pointer git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158660 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify a bit that the types have to be the same. Came up on IRC.Duncan Sands2012-06-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158453 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new intrinsic: llvm.fmuladd. This intrinsic represents a multiply-addLang Hames2012-06-051-0/+51
| | | | | | | | | | | | | | expression (a * b + c) that can be implemented as a fused multiply-add (fma) if the target determines that this will be more efficient. This intrinsic will be used to implement FP_CONTRACT support and an aggressive FMA formation mode. If your target has a fast FMA instruction you should override the isFMAFasterThanMulAndAdd method in TargetLowering to return true. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158014 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typos noticed by Benjamin Kramer.Rafael Espindola2012-05-311-2/+2
| | | | | | | Also make the checks stronger and test that we reject ranges that overlap a previous wrapped range. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157749 91177308-0d34-0410-b5e6-96231b3b80d8
* Require intervals in the range metadata to be in a canonical form: They mustRafael Espindola2012-05-311-0/+4
| | | | | | | | | | | be non contiguous, non overlapping and sorted by the lower end. While this is technically a backward incompatibility, every frontent currently produces range metadata with a single interval and we don't have any pass that merges intervals yet, so no existing bitcode files should be rejected by this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157741 91177308-0d34-0410-b5e6-96231b3b80d8
* typo fixChris Lattner2012-05-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157661 91177308-0d34-0410-b5e6-96231b3b80d8
* rdar://11542750 - llvm.trap should be marked no return.Chris Lattner2012-05-271-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157551 91177308-0d34-0410-b5e6-96231b3b80d8
* Add half support to LLVM (for OpenCL)Tobias Grosser2012-05-241-3/+5
| | | | | | | | | | Submitted by: Anton Lokhmotov <Anton.Lokhmotov@arm.com> Approved by: o Anton Korobeynikov o Micah Villmow o David Neto git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157393 91177308-0d34-0410-b5e6-96231b3b80d8
* revert my previous patches that introduced an additional parameter to the ↵Nuno Lopes2012-05-221-12/+8
| | | | | | | | objectsize intrinsic. After a lot of discussion, we realized it's not the best option for run-time bounds checking git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157255 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed grammar for the llvm.trap intrinsic description.John Criswell2012-05-161-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156881 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename @llvm.debugger to @llvm.debugtrap.Dan Gohman2012-05-141-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156774 91177308-0d34-0410-b5e6-96231b3b80d8
* Define a new intrinsic, @llvm.debugger. It will be similar to __builtin_trap(),Dan Gohman2012-05-111-0/+26
| | | | | | | but it generates int3 on x86 instead of ud2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156593 91177308-0d34-0410-b5e6-96231b3b80d8
* change the objectsize intrinsic signature: add a 3rd parameter to denote the ↵Nuno Lopes2012-05-091-10/+14
| | | | | | | | maximum runtime performance penalty that the user is willing to accept. This commit only adds the parameter. Code taking advantage of it will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156473 91177308-0d34-0410-b5e6-96231b3b80d8
* [docs] Update HTML pages to refer to CSS in a way that works locally and ↵Daniel Dunbar2012-04-191-1/+1
| | | | | | with Sphinx. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155153 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove support for the special 'fast' value for fpmath accuracy for the moment.Duncan Sands2012-04-161-7/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154850 91177308-0d34-0410-b5e6-96231b3b80d8
* Make it possible to indicate relaxed floating point requirements at the IR levelDuncan Sands2012-04-161-8/+11
| | | | | | | | | | through the use of 'fpmath' metadata. Currently this only provides a 'fpaccuracy' value, which may be a number in ULPs or the keyword 'fast', however the intent is that this will be extended with additional information about NaN's, infinities etc later. No optimizations have been hooked up to this so far. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154822 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename "fpaccuracy" metadata to the more generic "fpmath". That's because I'mDuncan Sands2012-04-141-6/+6
| | | | | | | | | | thinking of generalizing it to be able to specify other freedoms beyond accuracy (such as that NaN's don't have to be respected). I'd like the 3.1 release (the first one with this metadata) to have the more generic name already rather than having to auto-upgrade it in 3.2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154744 91177308-0d34-0410-b5e6-96231b3b80d8
* Express the number of ULPs in fpaccuracy metadata as a real rather than aDuncan Sands2012-04-101-4/+4
| | | | | | | rational number, eg as 2.5 rather than 5, 2. OK'd by Peter Collingbourne. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154387 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify that fpaccuracy metadata is giving the compiler permission to use aDuncan Sands2012-04-091-2/+4
| | | | | | | less accurate method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154319 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/docs/*.html: Fix markups.NAKAMURA Takumi2012-03-271-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153508 91177308-0d34-0410-b5e6-96231b3b80d8
* First part of PR12251. Add documentation and verifier support for the rangeRafael Espindola2012-03-241-0/+34
| | | | | | metadata. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153359 91177308-0d34-0410-b5e6-96231b3b80d8
* This clause (although matching parts of the implementation) can't be correct.Nick Lewycky2012-03-181-2/+1
| | | | | | | Thanks to Eli for noticing the discrepancy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153011 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the "hello world" example to resemble what we currently output.Bill Wendling2012-03-141-15/+15
| | | | | | | Also do some minor reformatting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152707 91177308-0d34-0410-b5e6-96231b3b80d8
* Add column width.Bill Wendling2012-03-061-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152115 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix validation errors.Bill Wendling2012-03-061-16/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152111 91177308-0d34-0410-b5e6-96231b3b80d8
* Where the alloca'd space actually lives in ram is undefined, and attempting toNick Lewycky2012-02-291-1/+6
| | | | | | | pin it down is undefined behaviour. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151710 91177308-0d34-0410-b5e6-96231b3b80d8
* Give a description of the Objective-C garbage collection module flags.Bill Wendling2012-02-161-0/+73
| | | | | | | | | | | | | | The rule governing the flags is this: no-gc + no-gc = no-gc no-gc + gc = no-gc no-gc + gc-only = error gc + gc = gc gc + gc-only = gc-only gc-only + gc-only = gc-only git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150646 91177308-0d34-0410-b5e6-96231b3b80d8
* Document the new module flags.Bill Wendling2012-02-111-0/+126
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150301 91177308-0d34-0410-b5e6-96231b3b80d8
* Added description of invariant.load metadata to LangRef. It was added to ↵Pete Cooper2012-02-101-1/+9
| | | | | | the compiler in r144100 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150257 91177308-0d34-0410-b5e6-96231b3b80d8
* [unwind removal] Remove any mention of the 'unwind' instruction. What was thatBill Wendling2012-02-061-51/+10
| | | | | | | instruction anyway?! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149913 91177308-0d34-0410-b5e6-96231b3b80d8
* Mention that the 'unwind' instruction is now deprecated.Bill Wendling2012-02-061-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149876 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix broken link.Nick Lewycky2012-01-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148692 91177308-0d34-0410-b5e6-96231b3b80d8
* 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
* Try to clarify a little how exception handling works.Duncan Sands2012-01-131-4/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148136 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert accidental commit.Bill Wendling2012-01-121-137/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148065 91177308-0d34-0410-b5e6-96231b3b80d8
* 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
* Update the LangRef documentation: the codegen does support this instruction.Nadav Rotem2011-12-251-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147274 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
* Vectors are not aggregate types (see isAggregateType).Duncan Sands2011-12-141-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146561 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the example from clang, not the GCC frontend, which doesn't exist anymore.Bill Wendling2011-12-131-24/+25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146461 91177308-0d34-0410-b5e6-96231b3b80d8
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