[analyzer] Inline constructors for any object with a trivial destructor.

This allows us to better reason about status objects, like Clang's own
llvm::Optional (when its contents are trivially destru

[analyzer] Inline constructors for any object with a trivial destructor.

This allows us to better reason about status objects, like Clang's own
llvm::Optional (when its contents are trivially destructible), which are
often intended to be passed around by value.

We still don't inline constructors for temporaries in the general case.

<rdar://problem/11986434>

llvm-svn: 162681

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Unify naming of LangOptions variable/get function across the Clang stack (Lex to AST).

The member variable is always "LangOpts" and the member function is always "getLangOpts".

Reviewed by Chris La

Unify naming of LangOptions variable/get function across the Clang stack (Lex to AST).

The member variable is always "LangOpts" and the member function is always "getLangOpts".

Reviewed by Chris Lattner

llvm-svn: 152536

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[analyzer] do not warn about returning stack-allocated memory when it comes from an ancestor stack frame.

llvm-svn: 151964

Basic: import SmallString<> into clang namespace

(I was going to fix the TODO about DenseMap too, but
that would break self-host right now. See PR11922.)

llvm-svn: 149799

Basic: import OwningPtr<> into clang namespace

llvm-svn: 149798

Change references to 'const ProgramState *' to typedef 'ProgramStateRef'.

At this point this is largely cosmetic, but it opens the door to replace
ProgramStateRef with a smart pointer that more eage

Change references to 'const ProgramState *' to typedef 'ProgramStateRef'.

At this point this is largely cosmetic, but it opens the door to replace
ProgramStateRef with a smart pointer that more eagerly acts in the role
of reclaiming unused ProgramState objects.

llvm-svn: 149081

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[analyzer] Make the entries in 'Environment' context-sensitive by making entries map from
(Stmt*,LocationContext*) pairs to SVals instead of Stmt* to SVals.

This is needed to support basic IPA via i

[analyzer] Make the entries in 'Environment' context-sensitive by making entries map from
(Stmt*,LocationContext*) pairs to SVals instead of Stmt* to SVals.

This is needed to support basic IPA via inlining. Without this, we cannot tell
if a Stmt* binding is part of the current analysis scope (StackFrameContext) or
part of a parent context.

This change introduces an uglification of the use of getSVal(), and thus takes
two steps forward and one step back. There are also potential performance implications
of enlarging the Environment. Both can be addressed going forward by refactoring the
APIs and optimizing the internal representation of Environment. This patch
mainly introduces the functionality upon when we want to build upon (and clean up).

llvm-svn: 147688

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[analyzer] Add getLocationContext to CheckerContext

CheckerContext::getPredecessor is only used to get to the LocationContext
half of the times.

llvm-svn: 143061

[analyzer] Rename generateNode -> addTransition in CheckerContext

Also document addTransition methods.

llvm-svn: 143059

[analyze] Convert EndOfPath callback to use CheckerContext

Get rid of the EndOfPathBuilder completely.
Use the generic NodeBuilder to generate nodes.
Enqueue the end of path frontier explicitly.

ll

[analyze] Convert EndOfPath callback to use CheckerContext

Get rid of the EndOfPathBuilder completely.
Use the generic NodeBuilder to generate nodes.
Enqueue the end of path frontier explicitly.

llvm-svn: 142943

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Change operator<< for raw_ostream and NamedDecl to take a reference instead of a pointer.

Passing a pointer was a bad idea as it collides with the overload for void*.

llvm-svn: 141971

Switch assert(0/false) llvm_unreachable.

llvm-svn: 140367

Handle CXXTempObjectRegion in StackAddrEscapeChecker.

Also convert stack-addr-ps.cpp to use the analyzer instead of just Sema, now
that it doesn't crash, and extract the stack-block test into anothe

Handle CXXTempObjectRegion in StackAddrEscapeChecker.

Also convert stack-addr-ps.cpp to use the analyzer instead of just Sema, now
that it doesn't crash, and extract the stack-block test into another file since
it errors, and that prevents the analyzer from running.

llvm-svn: 138613

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[analyzer] Replace calls to getNameAsString() with StringRef equivalents.

llvm-svn: 138215

Remove EnhancedBugReport and RangedBugReport - pull all the extra functionality they provided into their parent BugReport. The only functional changes are: made getRanges() non const - it adds defaul

Remove EnhancedBugReport and RangedBugReport - pull all the extra functionality they provided into their parent BugReport. The only functional changes are: made getRanges() non const - it adds default range to Ranges if none are supplied, made getStmt() private, which was another FIXME.

llvm-svn: 137894

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Rename GRState to ProgramState, and cleanup some code formatting along the way.

llvm-svn: 137665

Cleanup various declarations of 'Stmt*' to be 'Stmt *', etc. in libAnalyzer and libStaticAnalyzer[*]. It was highly inconsistent, and very ugly to look at.

llvm-svn: 137537

Rename getInstantiationLineNumber to getExpansionLineNumber in both
SourceManager and FullSourceLoc.

llvm-svn: 135969

remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports
them into the clang namespace.

llvm-svn: 135852

Automatic Reference Counting.

Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation c

Automatic Reference Counting.

Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103

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[analyzer] Rename CheckerV2 -> Checker.

llvm-svn: 126726

Tidy up help text in Checkers.td, and rename StackAddrLeakChecker to StackAddrEscapeChecker.

llvm-svn: 126522