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2012-08-29Keep history of macro definitions and #undefsAlexander Kornienko
Summary: Summary: Keep history of macro definitions and #undefs with corresponding source locations, so that we can later find out all macros active in a specified source location. We don't save the history in PCH (no need currently). Memory overhead is about sizeof(void*)*3*<number of macro definitions and #undefs>+<in-memory size of all #undef'd macros> I've run a test on a file composed of 109 .h files from boost 1.49 on x86-64 linux. Stats before this patch: *** Preprocessor Stats: 73222 directives found: 19171 #define. 4345 #undef. #include/#include_next/#import: 5233 source files entered. 27 max include stack depth 19210 #if/#ifndef/#ifdef. 2384 #else/#elif. 6891 #endif. 408 #pragma. 14466 #if/#ifndef#ifdef regions skipped 80023/451669/1270 obj/fn/builtin macros expanded, 85724 on the fast path. 127145 token paste (##) operations performed, 11008 on the fast path. Preprocessor Memory: 5874615B total BumpPtr: 4399104 Macro Expanded Tokens: 417768 Predefines Buffer: 8135 Macros: 1048576 #pragma push_macro Info: 0 Poison Reasons: 1024 Comment Handlers: 8 Stats with this patch: ... Preprocessor Memory: 7541687B total BumpPtr: 6066176 Macro Expanded Tokens: 417768 Predefines Buffer: 8135 Macros: 1048576 #pragma push_macro Info: 0 Poison Reasons: 1024 Comment Handlers: 8 In my test increase in memory usage is about 1.7Mb, which is ~28% of initial preprocessor's memory usage and about 0.8% of clang's total VMM allocation. As for CPU overhead, it should only be noticeable when iterating over all macros, and should mostly consist of couple extra dereferences and one comparison per macro + skipping of #undef'd macros. It's less trivial to measure, though, as the preprocessor consumes a very small fraction of compilation time. Reviewers: doug.gregor, klimek, rsmith, djasper Reviewed By: doug.gregor CC: cfe-commits, chandlerc Differential Revision: http://llvm-reviews.chandlerc.com/D28 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162810 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28Modifes BoundNodes to store void* and allow casting themManuel Klimek
into the correct types when pulling them out in the result callback in a type safe way. This is also the base change for multiple things that will allow handling things more generally and thus supporting more of the AST, especially handling Type nodes. Patch contributed by Michael Diamond. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162804 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28Splitting the duplicated decl spec extension warning into two: one is an ↵Aaron Ballman
ExtWarn and the other a vanilla warning. This addresses PR13705, where const char const * wouldn't warn unless -pedantic was specified under the right conditions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28[ms-inline asm] Add constraints to MSAsmStmt. We don't currently computeChad Rosier
the constraints, so in the interim we speculatively assume a 'r' constraint. This is expected to work for most cases on x86. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162784 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28[ms-inline asm] Make the AsmStmt class non-virtual.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162768 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28Warn about suspicious implicit conversions from floating point to boolHans Wennborg
This warns in two specific situations: 1) For potentially swapped function arguments, e.g. void foo(bool, float); foo(1.7, false); 2) Misplaced brackets around function call arguments, e.g. bool InRange = fabs(a - b < delta); Where the last argument in a function call is implicitly converted from bool to float, and the function returns a float which gets implicitly converted to bool. Patch by Andreas Eckleder! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162763 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28Fix a -Wdocumentation warning.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162721 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28[analyzer] Rename addTrackNullOrUndefValueVisitor to trackNullOrUndefValue.Jordan Rose
This helper function (in the clang::ento::bugreporter namespace) may add more than one visitor, but conceptually it's tracking a single use of a null or undefined value and should do so as best it can. Also, the BugReport parameter has been made a reference to underscore that it is non-optional. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162720 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28[analyzer] Refactor FindLastStoreBRVisitor to not find the store ahead of time.Jordan Rose
As Anna pointed out to me offline, it's a little silly to walk backwards through the graph to find the store site when BugReporter will do the exact same walk as part of path diagnostic generation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162719 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28[analyzer] Rename CallEvent::mayBeInlined to CallEvent::isCallStmt.Jordan Rose
The two callers are using this in order to be conservative, so let's just clarify the information that's actually being provided here. This is not related to inlining decisions in any way. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162717 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28[ms-inline asm] Hoist more common code into the AsmStmt base class. Add stubsChad Rosier
with FIXMEs for unimplemented features. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162716 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Add virtual function, getClobber, that returns a StringRef.Chad Rosier
More work towards unifying asm stmt codegen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162712 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Hoist getNumClobbers into base class.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162711 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Rename getClobber to getClobberStringLiteral. No functionalChad Rosier
change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162710 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27Appease -Wnon-virtual-dtorMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162700 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Add a few comments.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162699 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Hoist common Expr handling logic into AsmStmt.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162698 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Rename GenerateAsmString to generateAsmString to conform withChad Rosier
coding standards. Also, add stub for MSAsmStmt class as part of unifying codegen logic for AsmStmts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162696 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Base class AsmStmt implements these.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162693 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Hoist common logic into the AsmStmt base class.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162692 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[ms-inline asm] Add a new base class, AsmStmt, for the GCCAsmStmt and MSAsmStmtChad Rosier
classes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162691 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27Update comment, per Jordan's suggestion.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27Update comment.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162682 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27Support MIPS DSP Rev2 intrinsics.Simon Atanasyan
The patch reviewed by Akira Hatanaka. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162669 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27Tweak the ARC-requires-10.6 diagnostic according to Jordan's review.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162651 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25[analyzer] Use the common evalBind infrastructure for initializers.Jordan Rose
This allows checkers (like the MallocChecker) to process the effects of the bind. Previously, using a memory-allocating function (like strdup()) in an initializer would result in a leak warning. This does bend the expectations of checkBind a bit; since there is no assignment expression, the statement being used is the initializer value. In most cases this shouldn't matter because we'll use a PostInitializer program point (rather than PostStmt) for any checker-generated nodes, though we /will/ generate a PostStore node referencing the internal statement. (In theory this could have funny effects if someone actually does an assignment within an initializer; in practice, that seems like it would be very rare.) <rdar://problem/12171711> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162637 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25[ms-inline asm] As part of a larger refactoring, rename AsmStmt to GCCAsmStmt.Chad Rosier
No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162632 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[ms-inline asm] Update the AST Reader/Writer for MS-style inline asms.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162629 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Fix integer unsigned behavior in clang due to signed left shift overflow.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162626 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24New matcher for MaterializeTemporaryExprSam Panzer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162609 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[ms-inline asm] Change the -fenable-experimental-ms-inline-asm option from a Chad Rosier
CodeGen option to a LangOpt option. In turn, hoist the guard into the parser so that we avoid the new (and fairly unstable) Sema/AST/CodeGen logic. This should restore the behavior of clang to that prior to r158325. <rdar://problem/12163681> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162602 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[analyzer] More fixups/rewording based on Jordan's feedback.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162597 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Instantiate class template specializations during ADL.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162586 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Rework how PathDiagnosticConsumers pass knowledge of what files theyTed Kremenek
generated for a given diagnostic to another. Because PathDiagnostics are specific to a give PathDiagnosticConsumer, store in a FoldingSet a unique hash for a PathDiagnostic (that will be the same for the same bug for different PathDiagnosticConsumers) that stores a list of files generated. This can then be read by the other PathDiagnosticConsumers. This fixes breakage in the PLIST-HTML output. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162580 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[analyzer] Address Jordan's review comments.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162579 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Comment diagnostics: for unresolved parameters, do not suggest parameter fixitDmitri Gribenko
with parameter that is documented. Fixes PR13670, <rdar://problem/12155840>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162570 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[ms-inline asm] Refactor code. No functional change intended.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162568 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Push ArrayRef through the Expr hierarchy.Benjamin Kramer
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162552 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Allow RecursiveASTVisitor to visit CXXCtorInitializer objects for whichJames Dennett
isWritten() returns false, if shouldVisitImplicitCode() returns true. Previously those CXXCtorInitializers were always skipped. In order to make this change easier to test, this patch also extends the test class template ExpectedLocationVisitor to support arbitrary numbers of expected matches and disallowed matches. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162544 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Use LLVM's plugin registry to enable registering new compilationDaniel Jasper
databases. Move JSONCompilationDatabase.h to its own files and register it as plugin. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162541 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Rename the ASTMatchers to better match AST nodes. Now, allDaniel Jasper
ASTMatchers have the same name as the corresponding AST nodes but are lower case. The only exceptions are the "CXX" prefixes which are not copied over to the matcher names as the goal is to actually remove these prefixes from the AST node names. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[analyzer] Move DynamicTypeInfo out of the ProgramState.hAnna Zaks
(I am not sure if we should move the setters and getters as well and make them into static methods..) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162528 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Updated LibTooling.html, minor improvements in CommonOptionsParserAlexander Kornienko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162521 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[ms-inline asm] Add the basic APIs for Exprs to the MSAsmStmt AST. Next we needChad Rosier
generate the Input/Output expressions using Sema::ActOnIdExpression(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162509 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24[analyzer] Make analyzer less aggressive when dealing with [self init].Anna Zaks
With inlining, retain count checker starts tracking 'self' through the init methods. The analyser results were too noisy if the developer did not follow 'self = [super init]' pattern (which is common especially in older code bases) - we reported self init anti-pattern AND possible use-after-free. This patch teaches the retain count checker to assume that [super init] does not fail when it's not consumed by another expression. This silences the retain count warning that warns about possibility of use-after-free when init fails, while preserving all the other checking on 'self'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162508 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Comment semantic analysis: treat function typedefs as functions so that one canDmitri Gribenko
use \param and \returns in documentation. Fixes PR13533. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162507 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Now that ASTMultiPtr is nothing more than a array reference, make it a ↵Benjamin Kramer
MutableArrayRef. This required changing all get() calls to data() and using the simpler constructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162501 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Remove ASTOwningVector, it doesn't own anything and provides no value over ↵Benjamin Kramer
SmallVector. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162492 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23[ms-inline asm] Add a few helper function to the MSAsmStmt class that are neededChad Rosier
by CodeGen. In the long-term, much of the codegen logic will be shared between the GNU-style and MS-style inline assembly, but for now I'm replicating this logic to avoid regressions with the GNU-style. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162478 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23Rip out remnants of move semantic emulation and smart pointers in Sema.Benjamin Kramer
These were nops for quite a while and only lead to confusion. ASTMultiPtr now behaves like a proper dumb array reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162475 91177308-0d34-0410-b5e6-96231b3b80d8
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