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* Add a new function attribute 'cold' to functions.Diego Novillo2013-05-24
| | | | | | | | | | | Other than recognizing the attribute, the patch does little else. It changes the branch probability analyzer so that edges into blocks postdominated by a cold function are given low weight. Added analysis and code generation tests. Added documentation for the new attribute. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182638 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ArrayRef constructor from None, and do the cleanups that this ↵Dmitri Gribenko2013-05-05
| | | | | | | | | constructor enables Patch by Robert Wilhelm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for PR 14965: Better error message for GEP with partially defined contentsEli Bendersky2013-04-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180030 91177308-0d34-0410-b5e6-96231b3b80d8
* Move 'kw_align' case to proper section, reorganize function attribute ↵Stephen Lin2013-04-20
| | | | | | keyword case statements to be consistent with r179119 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179948 91177308-0d34-0410-b5e6-96231b3b80d8
* Add CodeGen support for functions that always return arguments via a new ↵Stephen Lin2013-04-20
| | | | | | parameter attribute 'returned', which is taken advantage of in target-independent tail call opportunity detection and in ARM call lowering (when placed on an integral first parameter). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179925 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix comment. Patch by Stephen Lin.Bill Wendling2013-04-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179780 91177308-0d34-0410-b5e6-96231b3b80d8
* Rationalize the formatting of these case labels. Having two sortedChandler Carruth2013-04-09
| | | | | | columns is essentially impossible to edit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179119 91177308-0d34-0410-b5e6-96231b3b80d8
* Unify clang/llvm attributes for asan/tsan/msan (LLVM part)Kostya Serebryany2013-02-26
| | | | | | | | | | | | | | | | | | | | These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement the NoBuiltin attribute.Bill Wendling2013-02-22
| | | | | | | | | The 'nobuiltin' attribute is applied to call sites to indicate that LLVM should not treat the callee function as a built-in function. I.e., it shouldn't try to replace that function with different code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175835 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comment.Chad Rosier2013-02-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175209 91177308-0d34-0410-b5e6-96231b3b80d8
* Add static cast to unsigned char whenever a character classification ↵Guy Benyei2013-02-12
| | | | | | function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175006 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge the collected attributes into the call instruction's attributes.Bill Wendling2013-02-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174955 91177308-0d34-0410-b5e6-96231b3b80d8
* [tsan/msan] adding thread_safety and uninitialized_checks attributesKostya Serebryany2013-02-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174864 91177308-0d34-0410-b5e6-96231b3b80d8
* Eat the alignment keyword if we're in an attribute group.Bill Wendling2013-02-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174846 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a 'continue' here to stop from double lexing.Bill Wendling2013-02-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174833 91177308-0d34-0410-b5e6-96231b3b80d8
* TEMPORARY SYNTAX CHANGE!Bill Wendling2013-02-09
| | | | | | | | | | | | | | | | | | | The original syntax for the attribute groups was ambiguous. For example: declare void @foo() #1 #0 = attributes { noinline } The '#0' would be parsed as an attribute reference for '@foo' and not as a top-level entity. In order to continue forward while waiting for a decision on what the correct syntax is, I'm changing it to this instead: declare void @foo() #1 attributes #0 = { noinline } Repeat: This is TEMPORARY until we decide what the correct syntax should be. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174813 91177308-0d34-0410-b5e6-96231b3b80d8
* Parse the attribute group reference on a function.Bill Wendling2013-02-08
| | | | | | | | | | | | Attribute references are of this form: define void @foo() #0 #1 #2 { ... } Parse them for function attributes. If there's more than one reference, then they are merged together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174697 91177308-0d34-0410-b5e6-96231b3b80d8
* Use ParseFnAttributeValuePairs instead of ParseOptionalFuncAttrs Bill Wendling2013-02-08
| | | | | | | | The functionality of ParseOptionalFuncAttrs was there in ParseFnAttributeValuePairs. So just use that instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174686 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial submission for the attribute group feature.Bill Wendling2013-02-06
| | | | | | | | | | | | | | | | | | Attribute groups are of the form: #0 = attributes { noinline "no-sse" "cpu"="cortex-a8" alignstack=4 } Target-dependent attributes are represented as strings. Attributes can have optional values associated with them. E.g., the "cpu" attribute has the value "cortex-a8". Target-independent attributes are listed as enums inside the attribute classes. Multiple attribute groups can be referenced by the same object. In that case, the attributes are merged together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174493 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the do-while(0) thing for this #define.Bill Wendling2013-02-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174347 91177308-0d34-0410-b5e6-96231b3b80d8
* Added LLVM Asm/Bitcode Reader/Writer support for new IR keyword ↵Michael Gottesman2013-02-05
| | | | | | externally_initialized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174340 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure that the Attribute object represents one attribute only.Bill Wendling2013-01-31
| | | | | | | | Several places were still treating the Attribute object as respresenting multiple attributes. Those places now use the AttributeSet to represent multiple attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174003 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the AttributeSet instead of AttributeWithIndex.Bill Wendling2013-01-27
| | | | | | | | In the future, AttributeWithIndex won't be used anymore. Besides, it exposes the internals of the AttributeSet to outside users, which isn't goodness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173603 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the IR attribute 'sspstrong'.Bill Wendling2013-01-23
| | | | | | | | | | | | | | | | | | | | | | SSPStrong applies a heuristic to insert stack protectors in these situations: * A Protector is required for functions which contain an array, regardless of type or length. * A Protector is required for functions which contain a structure/union which contains an array, regardless of type or length. Note, there is no limit to the depth of nesting. * A protector is required when the address of a local variable (i.e., stack based variable) is exposed. (E.g., such as through a local whose address is taken as part of the RHS of an assignment or a local whose address is taken as part of a function argument.) This patch implements the SSPString attribute to be equivalent to SSPRequired. This will change in a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173230 91177308-0d34-0410-b5e6-96231b3b80d8
* Make APFloat constructor require explicit semantics.Tim Northover2013-01-22
| | | | | | | | | Previously we tried to infer it from the bit width size, with an added IsIEEE argument for the PPC/IEEE 128-bit case, which had a default value. This default value allowed bugs to creep in, where it was inappropriate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173138 91177308-0d34-0410-b5e6-96231b3b80d8
* Use hexDigitValue in LLLexer.Jordan Rose2013-01-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172866 91177308-0d34-0410-b5e6-96231b3b80d8
* There was a switch fall-through in the parser for textual LLVM that causedDavid Tweed2013-01-07
| | | | | | | | | bogus comparison operands to default to eq/oeq. Fix that, fix a couple of tests that accidentally passed and test for bogus comparison opeartors explicitly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171733 91177308-0d34-0410-b5e6-96231b3b80d8
* Move all of the header files which are involved in modelling the LLVM IRChandler Carruth2013-01-02
| | | | | | | | | | | | | | | | | | | | | into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the predicate methods off of AttributeSet instead of Attribute.Bill Wendling2012-12-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171257 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new attribute, 'noduplicate'. If a function contains a noduplicate ↵James Molloy2012-12-20
| | | | | | | | | | call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call. Similarly inlining of the function is inhibited, if that would duplicate the call (in particular inlining is still allowed when there is only one callsite and the function has internal linkage). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170704 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename the 'Attributes' class to 'Attribute'. It's going to represent a ↵Bill Wendling2012-12-19
| | | | | | single attribute in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170502 91177308-0d34-0410-b5e6-96231b3b80d8
* Reorganize FastMathFlags to be a wrapper around unsigned, and streamline ↵Michael Ilseman2012-12-09
| | | | | | some interfaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169712 91177308-0d34-0410-b5e6-96231b3b80d8
* s/AttrListPtr/AttributeSet/g to better label what this class is going to be ↵Bill Wendling2012-12-07
| | | | | | in the near future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169651 91177308-0d34-0410-b5e6-96231b3b80d8
* Split up the ParseOptionalAttrs method into three different methods for eachBill Wendling2012-12-04
| | | | | | | | class of attributes. This makes it much easier to check for errors and to reuse the code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169336 91177308-0d34-0410-b5e6-96231b3b80d8
* Sort includes for all of the .h files under the 'lib' tree. These wereChandler Carruth2012-12-04
| | | | | | | | | | missed in the first pass because the script didn't yet handle include guards. Note that the script is now able to handle all of these headers without manual edits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169224 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-03
| | | | | | | | | | | | | | | | | Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
* Add back support for reading and parsing 'deplibs'.Bill Wendling2012-11-28
| | | | | | | | This is for backwards compatibility for pre-3.x bc files. The code reads the code, but does nothing with it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168779 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the dependent libraries feature.Bill Wendling2012-11-27
| | | | | | | The dependent libraries feature was never used and has bit-rotted. Remove it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168694 91177308-0d34-0410-b5e6-96231b3b80d8
* Fast-math flags for LLVM IR parsing and printingMichael Ilseman2012-11-27
| | | | | | | | Added in the ability to read LLVM IR text that contains fast-math flags as a sequence of capital letters separated by spaces in any order. Added in the printing of the fast-math flags in a canonical order, and don't print the other flags when 'fast' is specified, as 'fast' implies all the others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168645 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the AttrListPtr object a part of the LLVMContext.Bill Wendling2012-11-20
| | | | | | | | | | When code deletes the context, the AttributeImpls that the AttrListPtr points to are now invalid. Therefore, instead of keeping a separate managed static for the AttrListPtrs that's reference counted, move it into the LLVMContext and delete it when deleting the AttributeImpls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168354 91177308-0d34-0410-b5e6-96231b3b80d8
* Preserve address space of forward-referenced global variables in the LL parserJustin Holewinski2012-11-16
| | | | | | | | | | | | Before, the parser would assert on the following code: @a2 = global i8 addrspace(1)* @a @a = addrspace(1) global i8 0 because the type of @a was "i8*" instead of "i8 addrspace(1)*" when parsing the initializer for @a2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168197 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in a comment.Craig Topper2012-11-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168138 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing whitespaceMichael Ilseman2012-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168103 91177308-0d34-0410-b5e6-96231b3b80d8
* Relax the restrictions on vector of pointer types, and vector getelementptr.Duncan Sands2012-11-13
| | | | | | | | | | | | | | | | Previously in a vector of pointers, the pointer couldn't be any pointer type, it had to be a pointer to an integer or floating point type. This is a hassle for dragonegg because the GCC vectorizer happily produces vectors of pointers where the pointer is a pointer to a struct or whatever. Vector getelementptr was restricted to just one index, but now that vectors of pointers can have any pointer type it is more natural to allow arbitrary vector getelementptrs. There is however the issue of struct GEPs, where if each lane chose different struct fields then from that point on each lane will be working down into unrelated types. This seems like too much pain for too little gain, so when you have a vector struct index all the elements are required to be the same. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167828 91177308-0d34-0410-b5e6-96231b3b80d8
* Change ForceSizeOpt attribute into MinSize attributeQuentin Colombet2012-10-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167020 91177308-0d34-0410-b5e6-96231b3b80d8
* Special calling conventions for Intel OpenCL built-in library.Elena Demikhovsky2012-10-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166566 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the "ForceSizeOpt" attribute.Nadav Rotem2012-10-22
| | | | | | | | | | | | | | Patch by Quentin Colombet <qcolombet@apple.com> Original description: """ The attached patch is the first step to have a better control on Oz related optimizations. The Oz optimization level focuses on code size, thus I propose to add an attribute called ForceSizeOpt. """ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166422 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the Attributes::Builder outside of the Attributes class and into its ↵Bill Wendling2012-10-15
| | | | | | own class named AttrBuilder. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165960 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an enum for the return and function indexes into the AttrListPtr object. ↵Bill Wendling2012-10-15
| | | | | | This gets rid of some magic numbers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165924 91177308-0d34-0410-b5e6-96231b3b80d8
* Attributes RewriteBill Wendling2012-10-15
| | | | | | | | | | | Convert the internal representation of the Attributes class into a pointer to an opaque object that's uniqued by and stored in the LLVMContext object. The Attributes class then becomes a thin wrapper around this opaque object. Eventually, the internal representation will be expanded to include attributes that represent code generation options, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165917 91177308-0d34-0410-b5e6-96231b3b80d8