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* Remove incorrect passage.Bill Wendling2011-09-27
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* Remove some not-really-correct wording.Bill Wendling2011-09-27
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* Fix grammar.Bill Wendling2011-09-26
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* Remove dead table entry.Bill Wendling2011-09-26
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* Some minor (and more involved) cleanups. No real context changes.Bill Wendling2011-09-26
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* Remove some missed references to dead intrinsics.Bill Wendling2011-09-20
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* Update the EH doc to reflect the new EH model.Bill Wendling2011-09-20
| | | | | | | | | This basically involved removing references to llvm.eh.exception, llvm.eh.selector, and llvm.eh.resume and replacing them with references to the landingpad and resume instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140128 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement and document the llvm.eh.resume intrinsic, which isJohn McCall2011-05-28
| | | | | | | | | | | | | | | | | | | transformed by the inliner into a branch to the enclosing landing pad (when inlined through an invoke). If not so optimized, it is lowered DWARF EH preparation into a call to _Unwind_Resume (or _Unwind_SjLj_Resume as appropriate). Its chief advantage is that it takes both the exception value and the selector value as arguments, meaning that there is zero effort in recovering these; however, the frontend is required to pass these down, which is not actually particularly difficult. Also document the behavior of landing pads a bit better, and make it clearer that it's okay that personality functions don't always land at landing pads. This is just a fact of life. Don't write optimizations that rely on pushing things over an unwind edge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132253 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
* docs: Canonicalize URLs.NAKAMURA Takumi2011-04-09
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* Fix the prototype for the llvm.eh.selector intrinsic.Bill Wendling2010-12-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121425 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a pre-dispatch SjLj EH hook on the unwind edge for targets to do anyJim Grosbach2010-10-19
| | | | | | | setup they require. Use this for ARM/Darwin to rematerialize the base pointer from the frame pointer when required. rdar://8564268 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116879 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix whitespace to be more consistent with AsmPrinter's style.Dan Gohman2010-05-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104962 91177308-0d34-0410-b5e6-96231b3b80d8
* Add entry for llvm.eh.sjlj.longjmp. PR4999.Jim Grosbach2010-05-26
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* Revert r103213. It broke several sections of live website.mike-m2010-05-07
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* Overhauled llvm/clang docs builds. Closes PR6613.mike-m2010-05-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NOTE: 2nd part changeset for cfe trunk to follow. *** PRE-PATCH ISSUES ADDRESSED - clang api docs fail build from objdir - clang/llvm api docs collide in install PREFIX/ - clang/llvm main docs collide in install - clang/llvm main docs have full of hard coded destination assumptions and make use of absolute root in static html files; namely CommandGuide tools hard codes a website destination for cross references and some html cross references assume website root paths *** IMPROVEMENTS - bumped Doxygen from 1.4.x -> 1.6.3 - splits llvm/clang docs into 'main' and 'api' (doxygen) build trees - provide consistent, reliable doc builds for both main+api docs - support buid vs. install vs. website intentions - support objdir builds - document targets with 'make help' - correct clean and uninstall operations - use recursive dir delete only where absolutely necessary - added call function fn.RMRF which safeguards against botched 'rm -rf'; if any target (or any variable is evaluated) which attempts to remove any dirs which match a hard-coded 'safelist', a verbose error will be printed and make will error-stop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103213 91177308-0d34-0410-b5e6-96231b3b80d8
* Update of 94055 to track the IR level call site information via an intrinsic.Jim Grosbach2010-01-28
| | | | | | | | | This allows code gen and the exception table writer to cooperate to make sure landing pads are associated with the correct invoke locations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94726 91177308-0d34-0410-b5e6-96231b3b80d8
* I don't see any point in having both eh.selector.i32 and eh.selector.i64,Duncan Sands2009-10-14
| | | | | | | | | | | | | | so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector. Likewise for eh.typeid.for. This aligns us with gcc, which always uses a 32 bit value for the selector on all platforms. My understanding is that the register allocator used to assert if the selector intrinsic size didn't match the pointer size, and this was the reason for introducing the two variants. However my testing shows that this is no longer the case (I fixed some bugs in selector lowering yesterday, and some more today in the fastisel path; these might have caused the original problems). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84106 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix validation errors.Bill Wendling2009-09-10
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* Fix validation errors.Bill Wendling2009-09-10
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* Correct __cxa_end_catch documentation to reflect that it doesn't take any ↵Eric Christopher2009-09-09
| | | | | | arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81307 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic information about SJLJ EHJim Grosbach2009-08-22
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* Remove a bit more cruft from the sjlj moving to a backend pass.Jim Grosbach2009-08-17
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* Fix validation errors.Bill Wendling2009-08-15
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* Fix validation errors.Bill Wendling2009-08-15
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* Reformatting and some cleanup.Bill Wendling2009-08-15
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* SjLj based exception handling unwinding support. This patch is nasty, brutishJim Grosbach2009-08-11
| | | | | | | | | | | | | | and short. Well, it's kinda short. Definitely nasty and brutish. The front-end generates the register/unregister calls into the SjLj runtime, call-site indices and landing pad dispatch. The back end fills in the LSDA with the call-site information provided by the front end. Catch blocks are not yet implemented. Built on Darwin and verified no llvm-core "make check" regressions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
* Documentation: fix HTML validation errors.Benjamin Kramer2009-08-05
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* clean up line-wrappingJim Grosbach2009-05-14
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* Update the names of the exception handling sjlj instrinsics toJim Grosbach2009-05-14
| | | | | | | | | | | llvm.eh.sjlj.* for better clarity as to their purpose and scope. Add a description of llvm.eh.sjlj.setjmp to ExceptionHandling.html. (llvm.eh.sjlj.longjmp documentation coming when that implementation is added). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71758 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify a bit. Based on feedback by Talin.Duncan Sands2008-12-29
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* Global replace of yellow W3C "valid HTML/CSS" icons with blue ones.Misha Brukman2008-12-11
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* Validation fixesBill Wendling2007-09-22
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* Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is ↵Anton Korobeynikov2007-09-07
| | | | | | | | | needed, because they just "mark" register liveins and we let frontend solve type issue, not lowering code :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41763 91177308-0d34-0410-b5e6-96231b3b80d8
* There is an impedance matching problem between LLVM andDuncan Sands2007-08-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gcc exception handling: if an exception unwinds through an invoke, then execution must branch to the invoke's unwind target. We previously tried to enforce this by appending a cleanup action to every selector, however this does not always work correctly due to an optimization in the C++ unwinding runtime: if only cleanups would be run while unwinding an exception, then the program just terminates without actually executing the cleanups, as invoke semantics would require. I was hoping this wouldn't be a problem, but in fact it turns out to be the cause of all the remaining failures in the LLVM testsuite (these also fail with -enable-correct-eh-support, so turning on -enable-eh didn't make things worse!). Instead we need to append a full-blown catch-all to the end of each selector. The correct way of doing this depends on the personality function, i.e. it is language dependent, so can only be done by gcc. Thus this patch which generalizes the eh.selector intrinsic so that it can handle all possible kinds of action table entries (before it didn't accomodate cleanups): now 0 indicates a cleanup, and filters have to be specified using the number of type infos plus one rather than the number of type infos. Related gcc patches will cause Ada to pass a cleanup (0) to force the selector to always fire, while C++ will use a C++ catch-all (null). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41484 91177308-0d34-0410-b5e6-96231b3b80d8
* Extend eh.selector to support both catches and filters.Duncan Sands2007-07-04
| | | | | | | Drop the eh.filter intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37875 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typos.Duncan Sands2007-04-16
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* Correct typo.Duncan Sands2007-04-14
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* Various hopefully correct easy fixes.Duncan Sands2007-03-30
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* First draft of exception handling doc.Jim Laskey2007-03-14
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35100 91177308-0d34-0410-b5e6-96231b3b80d8
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