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2013-03-07Promote atomic type sizes up to a power of two, capped byJohn McCall
MaxAtomicPromoteWidth. Fix a ton of terrible bugs with _Atomic types and (non-intrinsic-mediated) loads and stores thereto. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176658 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Move the atomics code into its own file.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176657 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Change hasAggregateLLVMType, which conflates complex andJohn McCall
aggregate types in a profoundly wrong way that has to be worked around in every call site, to getEvaluationKind, which classifies and distinguishes between all of these cases. Also, normalize the API for loading and storing complexes. I'm working on a larger patch and wanted to pull these changes out, but it would have be annoying to detangle them from each other. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176656 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Evaluate compound literals directly into the result aggregateJohn McCall
when that aggregate isn't potentially aliased. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176654 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Remove temporary std::vectors that ca be replaced with ArrayRef's magic.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176653 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Remove unncessary whitespace when triggered on empty line.Daniel Jasper
With the cursor located at "I", clang-format would not do anything to: int a; I int b; With this patch, it reduces the number of empty lines as necessary, and removes unnecessary whitespace. It does not change/reformat "int a;" or "int b;". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176650 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Add 'e' to the SPIR data layout - SPIR is little endian for now.Guy Benyei
Add 32/64 bit specific target defines for SPIR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176629 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Minor refactor of how we get compilation phases.Matthew Curtis
There is now a single function to get the list of phases for a given output Type. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176628 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Fix build with clang, this was supposed to be part of r176617.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176619 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Add flags for additional control over coverage generation. Pick the versionNick Lewycky
string to be emitted, and two properties about the files themselves. Use $PWD to absolut-ify the path to the coverage file. Yes, this is what GCC does. Reverts my own r175706. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176617 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07[analyzer] Warn on passing a reference to null pointer as an argument in a callAnna Zaks
Warn about null pointer dereference earlier when a reference to a null pointer is passed in a call. The idea is that even though the standard might allow this, reporting the issue earlier is better for diagnostics (the error is reported closer to the place where the pointer was set to NULL). This also simplifies analyzer’s diagnostic logic, which has to track “where the null came from”. As a consequence, some of our null pointer warning suppression mechanisms started triggering more often. TODO: Change the name of the file and class to reflect the new check. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176612 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Add a hasExternalLinkage helper. No functionality change.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176607 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Add a hasExternalStorageAsWritten helper. No functionality change.Rafael Espindola
It is possible that some of the current uses of "getStorageClassAsWritten() == SC_Extern" should use this but I don't know enough about SC_PrivateExtern to change and test them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176606 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07[analyzer] Check for returning null references in ReturnUndefChecker.Jordan Rose
Officially in the C++ standard, a null reference cannot exist. However, it's still very easy to create one: int &getNullRef() { int *p = 0; return *p; } We already check that binds to reference regions don't create null references. This patch checks that we don't create null references by returning, either. <rdar://problem/13364378> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176601 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07[analyzer] Clean up a few doc comments for ProgramState and CallEvent.Jordan Rose
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176600 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06Ensure that DIType is regenerated after we visit an implementationAdrian Prantl
that adds ivars to an interface. Fixes rdar://13175234 This is an update to r176116 that performs a smart caching of interfaces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176584 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06[analyzer] Pass the correct Expr to the bug reporter visitors when dealing ↵Anna Zaks
with CompoundLiteralExpr This allows us to trigger the IDC visitor in the added test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176577 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06[analyzer] IDC: Add config option; perform the idc check on first “null ↵Anna Zaks
node” rather than last “non-null”. The second modification does not lead to any visible result, but, theoretically, is what we should have been looking at to begin with since we are checking if the node was assumed to be null in an inlined function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176576 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06[PCH] When pre-validating the headers from the PCH, only validate non-system ↵Argyrios Kyrtzidis
headers. Stat'ing all the headers from the PCH to make sure they are up-to-date takes significant time. In a particular source file (whose PCH file included Cocoa.h) from total -fsyntax-only time 12% was just stat calls. Change pre-validation to only check non-system headers. There are some notable disadvantages: -If a system header, that is not include-guarded, changes after the PCH was created, we will not find it in the header info table and we will #import it, effectively #importing it twice, thus we will emit some error due to a multiple definition and after that the "header was modified" error will likely be emitted, for example something like: NSDictionary.h:12:1: error: duplicate interface definition for class 'NSDictionary' @interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSSecureCoding, NSFastEnumeration> ^ NSDictionary.h:12:12: note: previous definition is here @interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSSecureCoding, NSFastEnumeration> ^ fatal error: file 'NSDictionary.h' has been modified since the precompiled header was built Though we get the "header was modified" error, this is a bit confusing. -Theoretically it is possible that such a system header will cause no errors but it will just cause an unfortunate semantic change, though I find this rather unlikely. The advantages: -Reduces compilation time when using a huge PCH like the Cocoa ones -System headers change very infrequent and when they do, users/build systems should be able to know that re-building from scratch is needed. Addresses rdar://13056262 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176567 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06[PCH] For HeaderFileInfoTrait, hash the key using size & time of the file.Argyrios Kyrtzidis
Previously the hash would be the filename portion of the path, which could be different for a filename with different case or a symbolic link with a different name completely. This did not actually create any issue so far because by validating all headers in the PCH we created uniqued FileEntries based on inodes, so an #include of a symbolic link (refering to a file from the PCH) would end up with a FileEntry with filename same as the one recorded in the PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176566 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06[PCH] We don't need to instantiate HeaderFileInfoTrait in ASTReader more ↵Argyrios Kyrtzidis
than once. We can just re-use the one from HeaderFileInfoLookupTable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176565 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06[PCH] Remove a couple of fields from ↵Argyrios Kyrtzidis
serialization::reader::HeaderFileInfoTrait that are not used for anything. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176564 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06say objective-C in the warning and streamlineFariborz Jahanian
several diagnostics into one. // rdar://13094352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176560 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06Driver: add support for new style multiarch in Ubuntu 13.04Dmitri Gribenko
Patch by Sanne Wouda. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176557 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06[Sanitize] Don't emit function attribute sanitize_address/thread/memory if ↵Alexey Samsonov
the function is blacklisted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176550 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06revert r176531 due to clan-native-arm failsWeiming Zhao
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176544 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06PR15390: If a function returns a pointer to a function, that function typeRichard Smith
can't have default arguments even though it's a parameter-declaration-clause in a function declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176542 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06After issuing a diagnostic for undefining or redefining a builtin macro,Richard Smith
continue parsing the directive rather than silently discarding it. Allowing undef or redef of __TIME__ and __DATE__ is important to folks who want stable, reproducible builds. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176540 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06objective-C: don't crash after diagnosingFariborz Jahanian
using object subscripting without declaring objectForKeyedSubscript: // rdar://13333205 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176539 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Remove unused static variable.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176535 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Preprocessor: don't keep comments under -traditional-cpp.Jordan Rose
This patch is designed for minimal intrusion into normal preprocessing and compilation; under -E -traditional-cpp, the lexer will still generate tok::comment nodes since it is preserving all whitespace, but the output printer will then throw it away. <rdar://problem/13338680> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176534 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05PR 11326: Lack diagnosic message when ABI conflicts on ARMWeiming Zhao
When both Triple and -mabi are used, it may result into conflicting ABI value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176531 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05fix a missing check in my last patch.Fariborz Jahanian
// rdar://13094352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176529 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Preprocessor: don't consider // to be a line comment in -E -std=c89 mode.Jordan Rose
It's beneficial when compiling to treat // as the start of a line comment even in -std=c89 mode, since it's not valid C code (with a few rare exceptions) and is usually intended as such. We emit a pedantic warning and then continue on as if line comments were enabled. This has been our behavior for quite some time. However, people use the preprocessor for things besides C source files. In today's prompting example, the input contains (unquoted) URLs, which contain // but should still be preserved. This change instructs the lexer to treat // as a plain token if Clang is in C90 mode and generating preprocessed output rather than actually compiling. <rdar://problem/13338743> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176526 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05doc. parsing. Improve on diagnostics on my last patch.Fariborz Jahanian
// rdar://13094352. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176525 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Use ASTContext::getDeclAlign(<Field Decl>) to get the alignment of the firstLang Hames
field to be memcpy'd, rather instead of ASTContext::getTypeAlign(<Field Type>). For packed structs the alignment of a field may be less than the alignment of the field's type. <rdar://problem/13338585> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176512 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05[libclang] When logging a CXTranslationUnit that came from an AST file, ↵Argyrios Kyrtzidis
print out the filename. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176511 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Fix this checkin.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176510 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05doc parsing. Add @method and @callback forFariborz Jahanian
checkings and few other refactoring/cleanup. // rdar://13094352. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176509 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Mips specific inline assembler constraint 'R'Jack Carter
'R' An address that can be sued in a non-macro load or store. Including missing positive test case and fixed typo for r176453. Thanks to Richard Smith for catching this! Jack git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176506 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Don't emit calls to virtual [[noreturn]] functions as noreturn; overrides of aRichard Smith
[[noreturn]] function are not required to also be [[noreturn]]. We still emit calls to virtual __attribute__((noreturn)) functions as noreturn; unlike GCC, we do require overriders to also be noreturn for that attribute. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176476 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Add quotation marks to template names in diagnostics.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176474 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Silence a number of static analyzer warnings with assertions and such.Jordan Rose
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176469 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05doc parsing. We want to issue a strong warning whenFariborz Jahanian
an @function comment is not followed by a function decl. // rdar://13094352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176468 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-04[analyzer] Don't let cf_audited_transfer override CFRetain semantics.Jordan Rose
We weren't treating a cf_audited_transfer CFRetain as returning +1 because its name doesn't contain "Create" or "Copy". Oops! Fortunately, the standard definitions of these functions are not marked audited. <rdar://problem/13339601> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176463 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-04Comment parsing: refactor handling of command markers in ASTDmitri Gribenko
* Use the term 'command marker', because the semantics of 'backslash' and 'at' commands are the same. (Talking about 'at commands' makes them look like a special entity.) * Sink the flag down into bitfields, reducing the size of AST nodes. * Change the flag into an enum for clarity. Boolean function parameters are not very clear. * Add unittests for new tok::at_command tokens. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176461 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-04Add ARM v6m, v7m, and v7em architectures for Cortex-M series processors.Bob Wilson
<rdar://problem/11314476> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176458 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-04Tidy up lists of Cortex-A series processors, adding entries for A7.Bob Wilson
Also fix a missing entry for cortex-r5 in one copy of getLLVMArchSuffixForARM. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176457 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-04Fix confused use of llvm::StringSwitch for armv7r architecture.Bob Wilson
svn 170909 added support for cortex-r5 but in this case it was done incorrectly. The last argument to StringSwitch.Cases() is the replacement value, so by adding "cortex-r5" it changed the default cpu for armv7r to cortex-r5 instead of cortex-r4. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176456 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-04Mips specific inline assembler constraint 'R'Jack Carter
'R' An address that can be sued in a non-macro load or store. This patch includes a positive test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176453 91177308-0d34-0410-b5e6-96231b3b80d8
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