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* a byval argument without an align can have an arbitrary alignmentChris Lattner2010-11-201-6/+10
| | | | | | | requirement on the input pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119914 91177308-0d34-0410-b5e6-96231b3b80d8
* With the newly simplified SourceMgr interfaces and the generalizedChris Lattner2010-11-171-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SrcMgrDiagHandler, we can improve clang diagnostics for inline asm: instead of reporting them on a source line of the original line, we can report it on the correct line wherever the string literal came from. For something like this: void foo() { asm("push %rax\n" ".code32\n"); } we used to get this: (note that the line in t.c isn't helpful) t.c:4:7: error: warning: ignoring directive for now asm("push %rax\n" ^ <inline asm>:2:1: note: instantiated into assembly here .code32 ^ now we get: t.c:5:8: error: warning: ignoring directive for now ".code32\n" ^ <inline asm>:2:1: note: instantiated into assembly here .code32 ^ Note that we're pointing to line 5 properly now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119488 91177308-0d34-0410-b5e6-96231b3b80d8
* Random cleanups and format changes.Bill Wendling2010-10-271-68/+69
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117428 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the description of the hotpatch attribute even more generic. Spotted byCharles Davis2010-10-251-4/+5
| | | | | | | Michael Spencer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117286 91177308-0d34-0410-b5e6-96231b3b80d8
* Make hotpatch attribute description a little less Wintel-specific.Charles Davis2010-10-251-3/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117267 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new 'hotpatch' attribute. This attribute will insert a two-byte no-opCharles Davis2010-10-251-0/+5
| | | | | | | | instruction at the beginning of each function that has the attribute, allowing the function to be easily hooked and/or patched. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117264 91177308-0d34-0410-b5e6-96231b3b80d8
* clarify that zero sized vectors are illegal, PR8340Chris Lattner2010-10-101-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116167 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix pasto.Dale Johannesen2010-10-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115261 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some doc for the x86mmx type.Dale Johannesen2010-10-011-0/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115255 91177308-0d34-0410-b5e6-96231b3b80d8
* remove unions from LLVM IR. They are severely buggy and notChris Lattner2010-08-281-67/+7
| | | | | | | being actively maintained, improved, or extended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112356 91177308-0d34-0410-b5e6-96231b3b80d8
* Create the new linker type "linker_private_weak_def_auto".Bill Wendling2010-08-201-0/+10
| | | | | | | | | | | | | It's similar to "linker_private_weak", but it's known that the address of the object is not taken. For instance, functions that had an inline definition, but the compiler decided not to inline it. Note, unlike linker_private and linker_private_weak, linker_private_weak_def_auto may have only default visibility. The symbols are removed by the linker from the final linked image (executable or dynamic library). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111684 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a broken linkChris Lattner2010-08-171-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111326 91177308-0d34-0410-b5e6-96231b3b80d8
* add some &nbsp;'s to a pre to avoid newlines being eaten Chris Lattner2010-08-171-10/+11
| | | | | | | | and the formatting being thrown off. I admit to not knowing what is going on here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111249 91177308-0d34-0410-b5e6-96231b3b80d8
* Grammar cop pullover: Corrected and improved some grammar in the description ofJohn Criswell2010-07-301-6/+6
| | | | | | | | the llvm.memset() intrinsic family. No content changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109863 91177308-0d34-0410-b5e6-96231b3b80d8
* Disallow null as a named metadata operand.Dan Gohman2010-07-211-3/+5
| | | | | | | | | | | | Make MDNode::destroy private. Fix the one thing that used MDNode::destroy, outside of MDNode itself. One should never delete or destroy an MDNode explicitly. MDNodes implicitly go away when there are no references to them (implementation details aside). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109028 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the Named Metadata example to make it clear which specificDan Gohman2010-07-131-0/+2
| | | | | | | construct is the named metadata. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108263 91177308-0d34-0410-b5e6-96231b3b80d8
* HTML cleanup and validation.Benjamin Kramer2010-07-131-111/+39
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108239 91177308-0d34-0410-b5e6-96231b3b80d8
* When doing sext/zext of constants, the target type must be strictlyDuncan Sands2010-07-131-4/+2
| | | | | | | wider than the source type. Correct LangRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108238 91177308-0d34-0410-b5e6-96231b3b80d8
* sdiv overflow is outright undefined behavior, with or without theDan Gohman2010-07-111-1/+1
| | | | | | | 'exact' keyword. Thanks to nlewycky for pointing this out! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108064 91177308-0d34-0410-b5e6-96231b3b80d8
* Closing tags start with slashes.John McCall2010-07-061-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107699 91177308-0d34-0410-b5e6-96231b3b80d8
* minor typoChris Lattner2010-07-061-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107696 91177308-0d34-0410-b5e6-96231b3b80d8
* Alphabetize the list of function parameters.Nick Lewycky2010-07-061-15/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107680 91177308-0d34-0410-b5e6-96231b3b80d8
* Note the relationship between C99 restrict and LLVM noalias, andDan Gohman2010-07-061-2/+11
| | | | | | | clarify a few other things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107659 91177308-0d34-0410-b5e6-96231b3b80d8
* Describe which dependencies are relevant to noalias, and document howDan Gohman2010-07-021-1/+6
| | | | | | | AliasAnalyses have the choice to respect noalias. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107544 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some html anchors, to allow attributes to be linked to directly.Dan Gohman2010-07-021-5/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107538 91177308-0d34-0410-b5e6-96231b3b80d8
* Reword the definition of the noalias attribute. The intention is forDan Gohman2010-07-021-20/+31
| | | | | | | | | | | | | | | | | the noalias argument on function attributes be usable to model the C99 restrict keyword on arguments, and to allow AliasAnalysis to consider a noalias-attributed argument to be an "identified object". To support this, refactor a new "based on" concept out of the current pointer aliasing "associated" concept. This "based on" concept is very similar to (though it is not identical with) the "based on" concept in C99. Also, reword the definition of NoAlias to more closely describe the concept that the optimizer uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107495 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement the "linker_private_weak" linkage type. This will be used forBill Wendling2010-07-011-14/+19
| | | | | | | | | | | | | | | | | | | | | | | | Objective-C metadata types which should be marked as "weak", but which the linker will remove upon final linkage. However, this linkage isn't specific to Objective-C. For example, the "objc_msgSend_fixup_alloc" symbol is defined like this: .globl l_objc_msgSend_fixup_alloc .weak_definition l_objc_msgSend_fixup_alloc .section __DATA, __objc_msgrefs, coalesced .align 3 l_objc_msgSend_fixup_alloc: .quad _objc_msgSend_fixup .quad L_OBJC_METH_VAR_NAME_1 This is different from the "linker_private" linkage type, because it can't have the metadata defined with ".weak_definition". Currently only supported on Darwin platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107433 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r107205 and r107207.Bill Wendling2010-06-291-22/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve explanation.Bill Wendling2010-06-291-2/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107207 91177308-0d34-0410-b5e6-96231b3b80d8
* Introducing the "linker_weak" linkage type. This will be used for Objective-CBill Wendling2010-06-291-13/+18
| | | | | | | | | | | | | | | | | | | | metadata types which should be marked as "weak", but which the linker will remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is defined like this: .globl l_objc_msgSend_fixup_alloc .weak_definition l_objc_msgSend_fixup_alloc .section __DATA, __objc_msgrefs, coalesced .align 3 l_objc_msgSend_fixup_alloc: .quad _objc_msgSend_fixup .quad L_OBJC_METH_VAR_NAME_1 This is different from the "linker_private" linkage type, because it can't have the metadata defined with ".weak_definition". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor clarification.Dan Gohman2010-06-171-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106234 91177308-0d34-0410-b5e6-96231b3b80d8
* Document aggregate operation constant expressions.Nick Lewycky2010-05-291-0/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105098 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix Data Layout description of floating point.Dale Johannesen2010-05-281-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104993 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix more whitespace to be consistent with AsmPrinter.Dan Gohman2010-05-281-14/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104963 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix whitespace to be more consistent with AsmPrinter's style.Dan Gohman2010-05-281-102/+102
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104962 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate the restriction that the array size in an alloca must be i32.Dan Gohman2010-05-281-1/+1
| | | | | | | This will help reduce the amount of casting required on 64-bit targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104911 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a missing quote.Dan Gohman2010-05-261-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104750 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r103213. It broke several sections of live website.mike-m2010-05-071-0/+7780
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103219 91177308-0d34-0410-b5e6-96231b3b80d8
* Overhauled llvm/clang docs builds. Closes PR6613.mike-m2010-05-061-7780/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Lattner2010-05-051-9/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103134 91177308-0d34-0410-b5e6-96231b3b80d8
* Update this comment to note its relationship with the "happens-before"Dan Gohman2010-05-031-3/+2
| | | | | | | 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 Gohman2010-05-031-2/+0
| | | | | | | | 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 Gohman2010-05-031-9/+10
| | | | | | | | 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 Gohman2010-05-031-1/+1
| | | | | | | constant expressions as well as instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102908 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed @ctor / @dtor the wrong way around in last commit. David Chisnall2010-04-301-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102741 91177308-0d34-0410-b5e6-96231b3b80d8
* Added a brief explanation of @llvm.global_{c,d}tors.David Chisnall2010-04-301-3/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102740 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite the section on trap values to contain a generic descriptionDan Gohman2010-04-281-47/+71
| | | | | | | | | | | 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 Gohman2010-04-281-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102478 91177308-0d34-0410-b5e6-96231b3b80d8
* further clarify alignment of globals, fix instcombineChris Lattner2010-04-281-4/+5
| | | | | | | | 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 Lattner2010-04-281-5/+8
| | | | | | | | 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
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