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* Split the init.trampoline intrinsic, which currently combines GCC'sDuncan Sands2011-09-06
| | | | | | | | | | | | | | | | | | | | | 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
* Some minor updates to atomic acquire/release docs in LangRef.Eli Friedman2011-08-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138472 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an example in the documentation.Rafael Espindola2011-08-23
| | | | | | Patch by Sanjoy Das! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138346 91177308-0d34-0410-b5e6-96231b3b80d8
* Some minor wording updates and cross-linking for atomic docs. Explicitly ↵Eli Friedman2011-08-22
| | | | | | note that we don't try to portably define what volatile in LLVM IR means. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138274 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed some punctuation. Sentences can be combined with semi-colons but notJohn Criswell2011-08-19
| | | | | | | commas. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138043 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the getelementptr description so it is extremely clear that array ↵Eli Friedman2011-08-12
| | | | | | indices passed to getelementptr are signed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137538 91177308-0d34-0410-b5e6-96231b3b80d8
* Move "atomic" and "volatile" designations on instructions after the opcodeEli Friedman2011-08-12
| | | | | | | | | | | | of the instruction. Note that this change affects the existing non-atomic load and store instructions; the parser now accepts both forms, and the change is noted in the release notes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137527 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial commit of the 'landingpad' instruction.Bill Wendling2011-08-12
| | | | | | | | | | | | | This implements the 'landingpad' instruction. It's used to indicate that a basic block is a landing pad. There are several restrictions on its use (see LangRef.html for more detail). These restrictions allow the exception handling code to gather the information it needs in a much more sane way. This patch has the definition, implementation, C interface, parsing, and bitcode support in it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137501 91177308-0d34-0410-b5e6-96231b3b80d8
* fix one reference that slipped through, thanks EliChris Lattner2011-08-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137488 91177308-0d34-0410-b5e6-96231b3b80d8
* add new accessors to reflect new terminology in struct types.Chris Lattner2011-08-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137468 91177308-0d34-0410-b5e6-96231b3b80d8
* docs: Update HTML markup(s).NAKAMURA Takumi2011-08-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137433 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix minor typo.Eli Friedman2011-08-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137177 91177308-0d34-0410-b5e6-96231b3b80d8
* Representation of 'atomic load' and 'atomic store' in IR.Eli Friedman2011-08-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137170 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up the grammar for the landingpad instruction.Bill Wendling2011-08-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137042 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo found by John.Bill Wendling2011-08-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137040 91177308-0d34-0410-b5e6-96231b3b80d8
* Go back to the old definition. It's not clear that a 'resume' can be ↵Bill Wendling2011-08-03
| | | | | | 'outlined' from the function with the landing pad for all platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136799 91177308-0d34-0410-b5e6-96231b3b80d8
* Explain how clauses are applied.Bill Wendling2011-08-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136790 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the documentation for the 'landingpad' instruction. Improve the 'invoke'Bill Wendling2011-08-02
| | | | | | | instruction's documentation to reference the landingpad and resume instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136729 91177308-0d34-0410-b5e6-96231b3b80d8
* no need to count the terminators.Chris Lattner2011-08-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136718 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor wording tweak for memory model.Eli Friedman2011-08-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136668 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some validation errors.Bill Wendling2011-07-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136591 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some validation errors.Bill Wendling2011-07-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136590 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the 'resume' instruction for the new EH rewrite.Bill Wendling2011-07-31
| | | | | | | | | | This adds the 'resume' instruction class, IR parsing, and bitcode reading and writing. The 'resume' instruction resumes propagation of an existing (in-flight) exception whose unwinding was interrupted with a 'landingpad' instruction (to be added later). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136589 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,Bill Wendling2011-07-30
| | | | | | | | | r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444, r136445, r136446, r136253 pending review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136556 91177308-0d34-0410-b5e6-96231b3b80d8
* LangRef and basic memory-representation/reading/writing for 'cmpxchg' andEli Friedman2011-07-28
| | | | | | | | | | | | | | | | | | | | | | | 'atomicrmw' instructions, which allow representing all the current atomic rmw intrinsics. The allowed operands for these instructions are heavily restricted at the moment; we can probably loosen it a bit, but supporting general first-class types (where it makes sense) might get a bit complicated, given how SelectionDAG works. As an initial cut, these operations do not support specifying an alignment, but it would be possible to add if we think it's useful. Specifying an alignment lower than the natural alignment would be essentially impossible to support on anything other than x86, but specifying a greater alignment would be possible. I can't think of any useful optimizations which would use that information, but maybe someone else has ideas. Optimizer/codegen support coming soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136404 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge the contents from exception-handling-rewrite to the mainline.Bill Wendling2011-07-27
| | | | | | | This adds the new instructions 'landingpad' and 'resume'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136253 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo.Bill Wendling2011-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136133 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up the HTML here a bit.Bill Wendling2011-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136074 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial implementation of 'fence' instruction, the new C++0x-style ↵Eli Friedman2011-07-25
| | | | | | | | | | replacement for llvm.memory.barrier. This is just a LangRef entry and reading/writing/memory representation; optimizer+codegen support coming soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136009 91177308-0d34-0410-b5e6-96231b3b80d8
* Add uwtable to the langref.Rafael Espindola2011-07-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135913 91177308-0d34-0410-b5e6-96231b3b80d8
* clarify that opaque is actually a struct type, PR10430Chris Lattner2011-07-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135861 91177308-0d34-0410-b5e6-96231b3b80d8
* Some LangRef tweaks, per Dan's comments.Eli Friedman2011-07-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135744 91177308-0d34-0410-b5e6-96231b3b80d8
* Commit LangRef changes for LLVM concurrency model. Start of supporting ↵Eli Friedman2011-07-20
| | | | | | C++0x memory model and atomics. See thread on llvmdev titled "Reviving the new LLVM concurrency model". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135624 91177308-0d34-0410-b5e6-96231b3b80d8
* Land the long talked about "type system rewrite" patch. ThisChris Lattner2011-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | patch brings numerous advantages to LLVM. One way to look at it is through diffstat: 109 files changed, 3005 insertions(+), 5906 deletions(-) Removing almost 3K lines of code is a good thing. Other advantages include: 1. Value::getType() is a simple load that can be CSE'd, not a mutating union-find operation. 2. Types a uniqued and never move once created, defining away PATypeHolder. 3. Structs can be "named" now, and their name is part of the identity that uniques them. This means that the compiler doesn't merge them structurally which makes the IR much less confusing. 4. Now that there is no way to get a cycle in a type graph without a named struct type, "upreferences" go away. 5. Type refinement is completely gone, which should make LTO much MUCH faster in some common cases with C++ code. 6. Types are now generally immutable, so we can use "Type *" instead "const Type *" everywhere. Downsides of this patch are that it removes some functions from the C API, so people using those will have to upgrade to (not yet added) new API. "LLVM 3.0" is the right time to do this. There are still some cleanups pending after this, this patch is large enough as-is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134829 91177308-0d34-0410-b5e6-96231b3b80d8
* Use add instead of accumulate.Cameron Zwarich2011-07-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134752 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an intrinsic and codegen support for fused multiply-accumulate. The intentCameron Zwarich2011-07-08
| | | | | | is to use this for architectures that have a native FMA instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134742 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize @llvm.ctlz, @llvm.cttz, and @llvm.ctpop to work on vectors of ↵Owen Anderson2011-07-01
| | | | | | integers, and fix the one optimization pass that I'm aware of that needs updating for this. At least one current target, ARM NEON, can implement these operations on vectors directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134265 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing operand. rdar://9694169Evan Cheng2011-06-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134078 91177308-0d34-0410-b5e6-96231b3b80d8
* Document nonlazybind.Dan Gohman2011-06-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133160 91177308-0d34-0410-b5e6-96231b3b80d8
* Add one more argument to the prefetch intrinsic to indicate whether it's a dataBruno Cardoso Lopes2011-06-14
| | | | | | | or instruction cache access. Update the targets to match it and also teach autoupgrade. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132976 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix copy+pastos.Dan Gohman2011-05-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132168 91177308-0d34-0410-b5e6-96231b3b80d8
* Document llvm.exp and llvm.pow. Dan Gohman2011-05-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131921 91177308-0d34-0410-b5e6-96231b3b80d8
* insertvalue takes a variable number of arguments, document this, fixing PR9935.Chris Lattner2011-05-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131850 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix errors in this llvm ir example.Nick Lewycky2011-05-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131416 91177308-0d34-0410-b5e6-96231b3b80d8
* docs: Introduce cascading style <div> and <p> continued on <h[2-5]>.NAKAMURA Takumi2011-04-23
| | | | | | | | | | | | | | | | | | <h2>Section Example</h2> <div> <!-- h2+div is applied --> <p>Section preamble.</p> <h3>Subsection Example</h3> <p> <!-- h3+p is applied --> Subsection body </p> <!-- End of section body --> </div> FIXME: Care H5 better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130040 91177308-0d34-0410-b5e6-96231b3b80d8
* docs: Use <Hn> as Heading elements instead of <DIV class="doc_foo">.NAKAMURA Takumi2011-04-18
| | | | | | | | | H1 ... doc_title H2 ... doc_section H3 ... doc_subsection H4 ... doc_subsubsection git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129736 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a ton of comment typos found by codespell. Patch byChris Lattner2011-04-15
| | | | | | | | Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a hole in the definition of "dependence" used by trap values. TrapDan Gohman2011-04-12
| | | | | | | | values are also transmitted through branches which cause side effects to be skipped altogether. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129404 91177308-0d34-0410-b5e6-96231b3b80d8
* docs: Canonicalize URLs.NAKAMURA Takumi2011-04-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129181 91177308-0d34-0410-b5e6-96231b3b80d8
* Pick better examples. "fpext float 3.1415 to double" won't parse because 3.1415Nick Lewycky2011-03-31
| | | | | | | | isn't an exact float. Also "fpext float 1.0 to float" is invalid IR because it's not performing an extension. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128647 91177308-0d34-0410-b5e6-96231b3b80d8
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