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2012-03-18This clause (although matching parts of the implementation) can't be correct.Nick Lewycky
Thanks to Eli for noticing the discrepancy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153011 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-14Update the "hello world" example to resemble what we currently output.Bill Wendling
Also do some minor reformatting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152707 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Add column width.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152115 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Fix validation errors.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152111 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29Where the alloca'd space actually lives in ram is undefined, and attempting toNick Lewycky
pin it down is undefined behaviour. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151710 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Give a description of the Objective-C garbage collection module flags.Bill Wendling
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
2012-02-11Document the new module flags.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150301 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-10Added description of invariant.load metadata to LangRef. It was added to ↵Pete Cooper
the compiler in r144100 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150257 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06[unwind removal] Remove any mention of the 'unwind' instruction. What was thatBill Wendling
instruction anyway?! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149913 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Mention that the 'unwind' instruction is now deprecated.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149876 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-23Fix broken link.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148692 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20Extend Attributes to 64 bitsKostya Serebryany
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
2012-01-13Try to clarify a little how exception handling works.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Revert accidental commit.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148065 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Fix the code that was WRONG.Bill Wendling
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
2011-12-25Update the LangRef documentation: the codegen does support this instruction.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147274 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-17The powers that be have decided that LLVM IR should now support 16-bitDan Gohman
"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
2011-12-14Vectors are not aggregate types (see isAggregateType).Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146561 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-13Use the example from clang, not the GCC frontend, which doesn't exist anymore.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146461 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-12Update the LangRef documentation for llvm.ctlz and llvm.cttz to specifyChandler Carruth
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
2011-12-09Random cleanups. No description changes.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146288 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Typo.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146234 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Fix a subtle semantic issue with poison values that came up inDan Gohman
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
2011-12-06Line up the comments in a code example.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145908 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Rename "Trap Values" to "Poison Values", to better reflect theirDan Gohman
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
2011-12-05Move 'returns_twice' definition into alphabetical place.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05Add support for vectors of pointers.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145801 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-04Fix table of contents.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-04Add 'llvm.expect' intrinsic description.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145792 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30More cleanups. No content change.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145522 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30Minor cleanup. No content change.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-27remove asmparsing and documentation support for "volatile load", which was ↵Chris Lattner
only produced by LLVM 2.9 and earlier. LLVM 3.0 and later prefers "load volatile". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145172 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-09Reformat the quote and tag the math stuff with <tt> tags.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144204 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-08Cleanup the formatting.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144053 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-04Fix some misplaced punctuation.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31docs/*.html: Fix markups.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143349 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31Close <div> that was indenting the rest of the page.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143328 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Add a pinned metadata name for fpaccuracy, and document itPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Document tbaa metadata in LangRef (documentation largely based onPeter Collingbourne
comments at top of TypeBasedAliasAnalysis.cpp). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143134 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Remove dead atomic intrinsics from LangRef.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142994 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-13Fixed typo.Lang Hames
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141906 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11target data is a contract with the code generator, not the "processor"Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141734 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11improve some of the documentation around target data layout strings.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141733 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Fixed docs to reflect the proper default value and behaviour of the natural ↵Lang Hames
stack alignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141687 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Use the proper name for "externally visible" linkage -- 'external'. This is theBill Wendling
keyword in LLVM for externally visible linkage. PR10636 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141649 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-10Add a natural stack alignment field to TargetData, and prevent InstCombine fromLang Hames
promoting allocas to preferred alignments that exceed the natural alignment. This avoids some potentially expensive dynamic stack realignments. The natural stack alignment is set in target data strings via the "S<size>" option. Size is in bits and must be a multiple of 8. The natural stack alignment defaults to "unspecified" (represented by a zero value), and the "unspecified" value does not prevent any alignment promotions. Target maintainers that care about avoiding promotions should explicitly add the "S<size>" option to their target data strings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141599 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04Remove last references to hotpatch.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141057 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03Add the returns_twice attribute to LLVM.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141001 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Split the init.trampoline intrinsic, which currently combines GCC'sDuncan Sands
init.trampoline and adjust.trampoline intrinsics, into two intrinsics like in GCC. While having one combined intrinsic is tempting, it is not natural because typically the trampoline initialization needs to be done in one function, and the result of adjust trampoline is needed in a different (nested) function. To get around this llvm-gcc hacks the nested function lowering code to insert an additional parent variable holding the adjust.trampoline result that can be accessed from the child function. Dragonegg doesn't have the luxury of tweaking GCC code, so it stored the result of adjust.trampoline in the memory GCC set aside for the trampoline itself (this is always available in the child function), and set up some new memory (using an alloca) to hold the trampoline. Unfortunately this breaks Go which allocates trampoline memory on the heap and wants to use it even after the parent has exited (!). Rather than doing even more hacks to get Go working, it seemed best to just use two intrinsics like in GCC. Patch mostly by Sanjoy Das. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139140 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24Some minor updates to atomic acquire/release docs in LangRef.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138472 91177308-0d34-0410-b5e6-96231b3b80d8
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