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2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07In ARC, reclaim all return values of retainable type, not just thoseJohn McCall
where we have an immediate need of a retained value. As an exception, don't do this when the call is made as the immediate operand of a __bridge retain. This is more in the way of a workaround than an actual guarantee, so it's acceptable to be brittle here. rdar://problem/9504800 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-05Don't overread the buffer when an %x escape in inline asm ends prematurely.Benjamin Kramer
Tested by valgrind & Sema/asm.c. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-04Switch the Decl and Stmt stats printing to use llvm::errs() instead ofChandler Carruth
fprintf, and to be more consistent in formatting with the other stats printing routines. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134374 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28Parsing/AST support for Structured Exception HandlingJohn Wiegley
Patch authored by Sohail Somani. Provide parsing and AST support for Windows structured exception handling. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-14Add support for C++0x's range-based for loops, as specified by the C++11 ↵Richard Smith
draft standard (N3291). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129541 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28tidy upChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126595 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21add one more case of mismatched input/output constraints. Chris Lattner
When the mismatch is due to a larger input operand that is a constant, truncate it down to the size of the output. This allows us to accept some cases in the linux kernel and elsewhere. Pedantically speaking, we generate different code than GCC, though I can't imagine how it would matter: Clang: movb $-1, %al frob %al GCC: movl $255, %eax frob %al git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Step #1/N of implementing support for __label__: split labels intoChris Lattner
LabelDecl and LabelStmt. There is a 1-1 correspondence between the two, but this simplifies a bunch of code by itself. This is because labels are the only place where we previously had references to random other statements, causing grief for AST serialization and other stuff. This does cause one regression (attr(unused) doesn't silence unused label warnings) which I'll address next. This does fix some minor bugs: 1. "The only valid attribute " diagnostic was capitalized. 2. Various diagnostics printed as ''labelname'' instead of 'labelname' 3. This reduces duplication of label checking between functions and blocks. Review appreciated, particularly for the cindex and template bits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125733 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Non-void functions need to return some value.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125185 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Give these little helper functions definitions so that newer gccs stopJohn McCall
complaining. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125184 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Remove vtables from the Stmt hierarchy; this was pretty easy asJohn McCall
there were only three virtual methods of any significance. The primary way to grab child iterators now is with Stmt::child_range children(); Stmt::const_child_range children() const; where a child_range is just a std::pair of iterators suitable for being llvm::tie'd to some locals. I've left the old child_begin() and child_end() accessors in place, but it's probably a substantial penalty to grab the iterators individually now, since the switch-based dispatch is kindof inherently slower than vtable dispatch. Grabbing them together is probably a slight win over the status quo, although of course we could've achieved that with vtables, too. I also reclassified SwitchCase (correctly) as an abstract Stmt class, which (as the first such class that wasn't an Expr subclass) required some fiddling in a few places. There are somewhat gross metaprogramming hooks in place to ensure that new statements/expressions continue to implement getSourceRange() and children(). I had to work around a recent clang bug; dgregor actually fixed it already, but I didn't want to introduce a selfhosting dependency on ToT. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125183 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20Revert r119838 "Don't warn for empty 'if' body if there is a macro that ↵Argyrios Kyrtzidis
expands to nothing" and use a better and more general approach, where NullStmt has a flag to indicate whether it was preceded by an empty macro. Thanks to Abramo Bagnara for the hint! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119887 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-19Don't warn for empty 'if' body if there is a macro that expands to nothing, e.g:Argyrios Kyrtzidis
if (condition) CALL(0); // empty macro but don't warn for empty body. Fixes rdar://8436021. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119838 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-30Rename alignof -> alignOf to avoid irritating C++'0x compilers,Chris Lattner
PR8423 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117775 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Implement an indirect-goto optimization for goto *&&lbl and respect thisJohn McCall
in the scope checker. With that done, turn an indirect goto into a protected scope into a hard error; otherwise IR generation has to start worrying about declarations not dominating their scopes, as exemplified in PR8473. If this really affects anyone, I can probably adjust this to only hard-error on possible indirect gotos into VLA scopes rather than arbitrary scopes. But we'll see how people cope with the aggressive change on the marginal feature. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Optimize field space usage in CompoundStmt, LabelStmt, Expr, and CastExpr.John McCall
There's probably still significant padding waste on x86-64 UNIXen, but the difference in 32-bit compiles should be significant. There are a lot of Expr nodes left that could lose a word this way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117359 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09Initialize 'AllEnumCasesCovered' in SwitchStmt's constructor.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113448 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25GCC didn't care for my attempt at API compatibility, so brute-force everythingJohn McCall
to the new constants. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17Convert all uses of StringLiteral::getStrData() to StringLiteral::getString()Benjamin Kramer
and remove getStrData(). Patch by Peter Davies (with some tweaks). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-25Remove the vast majority of the Destroy methods from the AST library,Douglas Gregor
since we aren't going to be calling them ever. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Support C++ try/catch statements for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109112 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06Added a path-sensitive idempotent operation checker ↵Tom Care
(-analyzer-idempotent-operation). Finds idempotent and/or tautological operations in a path sensitive context, flagging operations that have no effect or a predictable effect. Example: { int a = 1; int b = 5; int c = b / a; // a is 1 on all paths } - New IdempotentOperationChecker class - Moved recursive Stmt functions in r107675 to IdempotentOperationChecker - Minor refactoring of SVal to allow checking for any integer - Added command line option for check - Added basic test cases git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107706 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06Added several helper functions to Stmt to recursively check for different ↵Tom Care
elements (macros, enum constants, etc). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107675 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-21Alter the internal representation of the condition variable inDouglas Gregor
if/while/switch/for statements to ensure that walking the children of these statements actually works. Previously, we stored the condition variable as a VarDecl. However, StmtIterator isn't able to walk from a VarDecl to a set of statements, and would (in some circumstances) walk beyond the end of the list of statements, cause Bad Behavior. In this change, we've gone back to representing the condition variables as DeclStmts. While not as memory-efficient as VarDecls, it greatly simplifies iteration over the children. Fixes the remainder of <rdar://problem/8104754>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106504 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-18Switch over the tablegen to use much prettier range technologySean Hunt
Also rename ABSTRACT to ABSTRACT_STMT, in keeping with the other .def files git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104017 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05Reapplying patch to change StmtNodes.def to StmtNodes.td, this timeSean Hunt
with no whitespace. This will allow statements to be referred to in attribute TableGen files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103087 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05Revert r103072; I accidentally ended up deleting a bunch of trailingSean Hunt
whitespace which makes this patch unreadable. Will recommit without the whitespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05Change StmtNodes.def to StmtNodes.td in anticipation of a rewrite of attributesSean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103072 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23Improve the AST representation of Objective-C @try/@catch/@finallyDouglas Gregor
statements. Instead of the @try having a single @catch, where all of the @catch's were chained (using an O(n^2) algorithm nonetheless), @try just holds an array of its @catch blocks. The resulting AST is slightly more compact (not important) and better represents the actual language semantics (good). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102221 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23david conrad points out that {|} in inline assembly on arm are not asmChris Lattner
variants. This fixes neon inline asm which my patch for PR6780 broke. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102181 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05fix PR6780, properly handling the IR {|} escapes in inline asm strings.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100449 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-31Remove the AST statistics tracking I added yesterday; it didn't pan out.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100027 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Introduce new AST statistics that keep track of the number of isa (orDouglas Gregor
dyn_cast) invocations for C++ and Objective-C types, declarations, expressions, and statements. The statistics will be printed when -print-stats is provided to Clang -cc1, with results such as: 277073 clang - Number of checks for C++ declaration nodes 13311 clang - Number of checks for C++ expression nodes 18 clang - Number of checks for C++ statement nodes 174182 clang - Number of checks for C++ type nodes 92300 clang - Number of checks for Objective-C declaration nodes 9800 clang - Number of checks for Objective-C expression nodes 7 clang - Number of checks for Objective-C statement nodes 65733 clang - Number of checks for Objective-C type nodes The statistics are only gathered when NDEBUG is not defined, since they introduce potentially-expensive operations into very low-level routines (isa). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Implement Doug's suggestion. Eliminate the Stmts pointer from CXXTryStmt and ↵Sam Weinig
instead allocate the statements after the object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Remove the SmallVector from CXXTryStmt.Sam Weinig
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95190 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Remove abstract expression kinds from the StmtClass enum. Update a few usersJohn McCall
appropriately. Call out a few missing cases in the expression mangler. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95176 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-31Try to unbreak MSVC build.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94951 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30Remove the SmallVectors from AsmStmt. Fixes PR6105.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94926 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30Use IdentifierInfo * instead of std::string for the AsmStmt names.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94925 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30Fix thinko.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94922 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30Even more AsmStmt cleanup.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94921 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30Combine AsmStmt::setOutputsAndInputs and AsmStmt::setClobbers.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94918 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-24Implement instantiation of AsmStmts (Crazy, I know)Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94361 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-04Remember if the AsmStmt came from Microsoft-style inline assembly code.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92526 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Fix bug I just introduced in ForStmt::child_end() where we could iterate off ↵Ted Kremenek
into garbage values. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92115 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Coelesce 'DoDestroy()' methods in Stmt.cpp, and modify the child_iterator ↵Ted Kremenek
returned by ForStmt to include the initializer of the condition variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92112 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Modify WhileStmt::child_begin()/child_end() to include the initializer for ↵Ted Kremenek
the condition variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92104 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Modify SwitchStmt::child_begin()/child_end() to include the initializer for ↵Ted Kremenek
the condition variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92100 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23Add StmtIterator support for iterating over both the conditionTed Kremenek
variable initializer and the other expressions in an IfStmt. This change required adding a 'DoDestroy()' method for IfStmt that did not include destroying the initializer (since that is owned by the VarDecl). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92089 91177308-0d34-0410-b5e6-96231b3b80d8
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