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* Revert r103213. It broke several sections of live website.mike-m2010-05-07
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* Disable man->postscript and man->pdf doc generation unless explicitlymike-m2010-05-07
| | | | | | | | configured via --enable-doxygen. It seems some systems have broken pdfroff so automatic use of it is not safe. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103217 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup unneeded dirs after docs overhaul.mike-m2010-05-06
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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
* Fix some ..'sChris Lattner2010-05-05
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* one more thing.Chris Lattner2010-05-04
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* update instructions for llvm-gcc4, the brave new world! PR7037Chris Lattner2010-05-04
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* Update one more 2.7 to 2.8.Dan Gohman2010-05-03
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* Minimally update ReleaseNotes.html for 2.8 development; uncomment andDan Gohman2010-05-03
| | | | | | | | | | | update the big red warning at the top. Most of the old content remains and awaits revision. Clear out the API changes section, and start it up again with a mention of the add->fadd transition. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102977 91177308-0d34-0410-b5e6-96231b3b80d8
* Update this comment to note its relationship with the "happens-before"Dan Gohman2010-05-03
| | | | | | | concept in the proposed memory model changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102911 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete this comment. The behavior of struct loads and stores withDan Gohman2010-05-03
| | | | | | | | respect to padding bytes isn't something that the dependence text needs to spell out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102910 91177308-0d34-0410-b5e6-96231b3b80d8
* Describe invoke instruction dependencies. Generalize the text forDan Gohman2010-05-03
| | | | | | | | terminator instructions so that it applies to all terminators with multiple successors, including invoke. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102909 91177308-0d34-0410-b5e6-96231b3b80d8
* Say "operations" instead of "instructions", as nsw can be applied toDan Gohman2010-05-03
| | | | | | | constant expressions as well as instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102908 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the -enable-sjlj-eh option, which doesn't do anything.Duncan Sands2010-05-02
| | | | | | | | Remove the -enable-eh option which is only used by the JIT, and replace it with -jit-enable-eh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102865 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed @ctor / @dtor the wrong way around in last commit. David Chisnall2010-04-30
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* Added a brief explanation of @llvm.global_{c,d}tors.David Chisnall2010-04-30
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* Rewrite the section on trap values to contain a generic descriptionDan Gohman2010-04-28
| | | | | | | | | | | of dependence and define trap values in terms of dependence, instead of trying to cover the concept with a flurry of ad-hoc rules. The dependence model isn't complete yet, but it's already much more rigorous than the description it replaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102479 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix spelling errors.Dan Gohman2010-04-28
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* further clarify alignment of globals, fix instcombineChris Lattner2010-04-28
| | | | | | | | to not increase the alignment of globals with an assigned alignment and section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102476 91177308-0d34-0410-b5e6-96231b3b80d8
* improve the global variable alignment description.Chris Lattner2010-04-28
| | | | | | | | it is not generally valid for targets to overalign them when an alignment is specified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102474 91177308-0d34-0410-b5e6-96231b3b80d8
* fix wordoChris Lattner2010-04-27
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* remove some comments.Chris Lattner2010-04-27
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* Integrate Jeffery Yasskin's suggestions with respect toDan Gohman2010-04-26
| | | | | | | | | | traps flowing through memory references, add some text to better cover phi nodes and externally-visible side effects, add an example of instructions being control-dependent on a trap value, and reword some of the existing trap rules. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102399 91177308-0d34-0410-b5e6-96231b3b80d8
* Consolidate the description of volatile operations, now that some of theJeffrey Yasskin2010-04-26
| | | | | | | | intrinsics have volatile semantics in addition to the load and store instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102384 91177308-0d34-0410-b5e6-96231b3b80d8
* Branching or switching on trap transfers imminent undefined behaviorDan Gohman2010-04-26
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* add some typewriter tagsGabor Greif2010-04-26
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* Fix HTML errors that Jeffery Yasskin noticed.Dan Gohman2010-04-26
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* wrap some long lines.Chris Lattner2010-04-26
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* add GHC, thanks to David TereiChris Lattner2010-04-26
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* another typo pointed out by sajdGabor Greif2010-04-25
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* fix two typos pointed out by sajdGabor Greif2010-04-25
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* Added bullet about GNUstep Objective-C ABI support to the Clang section of ↵David Chisnall2010-04-25
| | | | | | the release notes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102309 91177308-0d34-0410-b5e6-96231b3b80d8
* PHI nodes also do not necessarily return trap with a trap operand.Dan Gohman2010-04-24
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* Fix typo.Nick Lewycky2010-04-24
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* Switch getelementptr inbounds and sdiv exact from undef to trap.Dan Gohman2010-04-23
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* Add an initial description of a new concept: trap values, and changeDan Gohman2010-04-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the definition of the nsw and nuw flags to make use of it. nsw was introduced to help optimizers answer yes to the following: // Can we change i from i32 to i64 to eliminate the cast inside the loop? for (int i = 0; i < n; ++i) A[i] *= 0.1; // Can we assume that this loop will eventually terminate? for (int i = 0; i <= n; ++i) A[i] *= 0.1; In its current form, it isn't truly sufficient for either. In the first case, if the increment overflows, it'll still have some valid i32 value; sign-extending it will produce a value which is 33 homogeneous sign bits trailed by 31 independent undef bits. If i is promoted to i64, it won't have those same values when it reaches that point. (The compiler could recover here by reasoning about how i is used by the load, but that's a lot more complicated and isn't always possible.) In the second case, there is no value for i which will be greater than n, so having the increment return undef on overflow doesn't help. Trap values are a formalization of some existing concepts that we have about LLVM IR, and give the optimizers a better basis for answering yes to both questions above. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102140 91177308-0d34-0410-b5e6-96231b3b80d8
* add macruby backChris Lattner2010-04-22
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* Add a blurb about the new LSR.Dan Gohman2010-04-22
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* The -condprop pass has been deleted.Nick Lewycky2010-04-22
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* The post-RA scheduler is currently off by default on x86.Dan Gohman2010-04-22
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* Add some verbiage about Clang to the 2.7 release notesDouglas Gregor2010-04-22
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* Add mention of ARM atomic builtin supportJim Grosbach2010-04-22
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* Update ARM frame index scavenging descriptionJim Grosbach2010-04-22
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* remove dupeChris Lattner2010-04-22
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* reword my incoherent babble into something that makes senseChris Lattner2010-04-22
| | | | | | | from Wesley Peck! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102096 91177308-0d34-0410-b5e6-96231b3b80d8
* two more projects.Chris Lattner2010-04-22
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* add some notes from Matthieu Moy!Chris Lattner2010-04-22
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* improve tblgen doc, pointed out by Zhongxing.Chris Lattner2010-04-22
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* Fixing a typo in the "Clang project" section of the release notes.Wesley Peck2010-04-22
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* Small fix to the "Other Improvements and New Features" section of the ↵Wesley Peck2010-04-22
| | | | | | release notes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102063 91177308-0d34-0410-b5e6-96231b3b80d8
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