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2010-04-21Sink the _GNU_SOURCE definition down into the target configuration,Douglas Gregor
and only define it where we know we need it---Linux and Cygwin. Thanks to Chris for the prodding. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101989 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Overhaul the AST representation of Objective-C message sendDouglas Gregor
expressions, to improve source-location information, clarify the actual receiver of the message, and pave the way for proper C++ support. The ObjCMessageExpr node represents four different kinds of message sends in a single AST node: 1) Send to a object instance described by an expression (e.g., [x method:5]) 2) Send to a class described by the class name (e.g., [NSString method:5]) 3) Send to a superclass class (e.g, [super method:5] in class method) 4) Send to a superclass instance (e.g., [super method:5] in instance method) Previously these four cases where tangled together. Now, they have more distinct representations. Specific changes: 1) Unchanged; the object instance is represented by an Expr*. 2) Previously stored the ObjCInterfaceDecl* referring to the class receiving the message. Now stores a TypeSourceInfo* so that we know how the class was spelled. This both maintains typedef information and opens the door for more complicated C++ types (e.g., dependent types). There was an alternative, unused representation of these sends by naming the class via an IdentifierInfo *. In practice, we either had an ObjCInterfaceDecl *, from which we would get the IdentifierInfo *, or we fell into the case below... 3) Previously represented by a class message whose IdentifierInfo * referred to "super". Sema and CodeGen would use isStr("super") to determine if they had a send to super. Now represented as a "class super" send, where we have both the location of the "super" keyword and the ObjCInterfaceDecl* of the superclass we're targetting (statically). 4) Previously represented by an instance message whose receiver is a an ObjCSuperExpr, which Sema and CodeGen would check for via isa<ObjCSuperExpr>(). Now represented as an "instance super" send, where we have both the location of the "super" keyword and the ObjCInterfaceDecl* of the superclass we're targetting (statically). Note that ObjCSuperExpr only has one remaining use in the AST, which is for "super.prop" references. The new representation of ObjCMessageExpr is 2 pointers smaller than the old one, since it combines more storage. It also eliminates a leak when we loaded message-send expressions from a precompiled header. The representation also feels much cleaner to me; comments welcome! This patch attempts to maintain the same semantics we previously had with Objective-C message sends. In several places, there are massive changes that boil down to simply replacing a nested-if structure such as: if (message has a receiver expression) { // instance message if (isa<ObjCSuperExpr>(...)) { // send to super } else { // send to an object } } else { // class message if (name->isStr("super")) { // class send to super } else { // send to class } } with a switch switch (E->getReceiverKind()) { case ObjCMessageExpr::SuperInstance: ... case ObjCMessageExpr::Instance: ... case ObjCMessageExpr::SuperClass: ... case ObjCMessageExpr::Class:... } There are quite a few places (particularly in the checkers) where send-to-super is effectively ignored. I've placed FIXMEs in most of them, and attempted to address send-to-super in a reasonable way. This could use some review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101972 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20change FullSourceLoc to have a *const* SourceManager&, eliminatingChris Lattner
a const_cast. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101940 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20push some source location information down through the compiler,Chris Lattner
into ContentCache::getBuffer. This allows it to produce diagnostics on the broken #include line instead of without a location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Keep proper source location information for the type in an Objective-CDouglas Gregor
@encode expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101907 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Introduce a limit on the depth of the template instantiation backtraceDouglas Gregor
we will print with each error that occurs during template instantiation. When the backtrace is longer than that, we will print N/2 of the innermost backtrace entries and N/2 of the outermost backtrace entries, then skip the middle entries with a note such as: note: suppressed 2 template instantiation contexts; use -ftemplate-backtrace-limit=N to change the number of template instantiation entries shown This should eliminate some excessively long backtraces that aren't providing any value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101882 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19Keep track of the actual storage specifier written on a variable orDouglas Gregor
function declaration, since it may end up being changed (e.g., "extern" can become "static" if a prior declaration was static). Patch by Enea Zaffanella and Paolo Bolzoni. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101826 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19Fix -Wcast-qual warnings.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Add support for '-fgnu-keywords' and '-fasm' to Clang's driver. They are notChandler Carruth
implemented precisely the same as GCC, but the distinction GCC makes isn't useful to represent. This allows parsing code which uses GCC-specific keywords ('asm', etc.) without parsing in a fully GNU mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Vtable -> VTable renames across the board.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101666 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Add raw_ostream operators to NamedDecl for convenience. Switch over all ↵Benjamin Kramer
users of getNameAsString on a stream. The next step is to print the name directly into the stream, avoiding a temporary std::string copy. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101632 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Add a write(raw_ostream&) method to RewriteBuffer. This uses an inefficientNick Lewycky
implementation today but is the right place if we want to make it faster some day. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101521 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Remove this hard-coded buffer size. In some basic experiments preprocessingDan Gohman
large files, this doesn't seem significantly better than just letting raw_ostream pick a buffer size. This code predates raw-ostream's automatic buffer sizing; in fact, it was introduced as part of the code which would eventually become raw_ostream. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101473 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Only predefine the macro _GNU_SOURCE in C++ mode when we're on aDouglas Gregor
platform that typically uses glibc. Fixes a Boost.Thread compilation failure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101450 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Fix a bug in caret-line-pruning logic that only happens when we have aDouglas Gregor
source line wider than the terminal where the associated fix-it line is longer than the caret line. Previously, we would crash in this case, which was rather unfortunate. Fixes <rdar://problem/7856226>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101426 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15clang -cc1: Add a -fno-bitfield-type-align option, for my own testing purposes.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101370 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Teach -fixit to modify all of its inputs instead of just the main file, unlessNick Lewycky
-fixit-at specified a particular fixit to fix, or the -o flag was used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101359 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Driver/Frontend: Add support for -mllvm, which forwards options to the LLVM ↵Daniel Dunbar
option parser. - Note that this is a behavior change, previously -mllvm at the driver level forwarded to clang -cc1. The driver does a little magic to make sure that '-mllvm -disable-llvm-optzns' works correctly, but other users will need to be updated to use -Xclang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Once we've emitted a fatal diagnostic, keep counting errors but with aDouglas Gregor
separate count of "suppressed" errors. This way, semantic analysis bits that depend on the error count to determine whether problems occured (e.g., some template argument deduction failures, jump-scope checking) will not get confused. The actual problem here is that a missing #include (which is a fatal error) could cause the jump-scope checker to run on invalid code, which it is not prepared to do. Trivial fix for both <rdar://problem/7775941> and <rdar://problem/7775709>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Improve line marker directive locations, patch by Jordy RoseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14make the token paste avoidance logic turn "..." into ".. ." instead of ". . ."Chris Lattner
when avoiding paste. Patch by David Peixotto! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14implement altivec.h and a bunch of support code, patch by Anton Yartsev!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Use ASTVector instead of std::vector for the Exprs in InitListExpr. PerformanceTed Kremenek
measurements of '-fsyntax-only' on combine.c (403.gcc) shows no real performance change, but now the vector isn't leaked. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13make the rewriter add a #ifndef around the #define of __attribute__.Chris Lattner
Without it, there is no reason for a compiler that supports it to emit the dead static globals that the rewriter labels attribute(used). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101149 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Add a cc1 option to specify the max number of nodes the analyzer can explore.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101120 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13add frontend support for -fdata-sections and -ffunction-sections,Chris Lattner
patch by Sylvere Teissier! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13cache the PP's SourceManager.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101099 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13make the preprocessor listen to linemarker directives in -E mode,Chris Lattner
PR6101. This is based on a patch and testcase by Jordy Rose! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101097 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12fix PR6814 - Only print [-pedantic] on a diagnostic if -pedantic Chris Lattner
actually turned it on. If a diag is produced by a warning which is an extension but defaults to on, and has no warning group, don't print any option info. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101071 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11add haiku support, patch by Paul Davey!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100982 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10Rename -dump-record-layouts to -fdump-record-layouts now that the option ↵Anders Carlsson
behaves like aa flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100943 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Turn access control on by default in -cc1.John McCall
Remove -faccess-control from -cc1; add -fno-access-control. Make the driver pass -fno-access-control by default. Update a bunch of tests to be correct under access control. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09On Windows, disable the modification-time check for files used inDouglas Gregor
precompiled headers and/or when reading the contents of the file into memory. These checks seem to be causing spurious regression-test failures on Windows. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Fixes a regression caused by implementing cstyle methods Fariborz Jahanian
for objc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100865 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Implement method type encoding in the presenseFariborz Jahanian
of c-style arguments. Completes radar 7445205. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100813 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Make CXXScopeSpec invalid when incomplete, and propagate that into anyJeffrey Yasskin
Declarator that depends on it. This fixes several redundant errors and bad recoveries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100779 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Fronted: Kill overly specialized RecordLayoutDumper, just make ↵Daniel Dunbar
-dump-record-layouts a bit that Sema honors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100747 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08AST: Move C++ record layout dumping to ASTContext::DumpRecordLayout.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100746 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08refactor out a function.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100733 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07rename llvm::llvm_report_error -> llvm::report_fatal_errorChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07add clang -cc1 level support for "-ferror-limit 42"Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Instead of counting totally diagnostics, split the count into a countChris Lattner
of errors and warnings. This allows us to emit something like this: 2 warnings and 1 error generated. instead of: 3 diagnostics generated. This also stops counting 'notes' because they are just follow-on information about the previous diag, not a diagnostic in themselves. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100675 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-06teach clang to install the inline asm diagnostic handler,Chris Lattner
allowing backend errors to be mapped through clang's diagnostics subsystem, including the backend location info. We now get: $ clang asm.c -c -o t.o -integrated-as <inline asm>:1:2: error: unrecognized instruction abc incl %eax ^ 1 diagnostic generated. With colors, and correct "# diagnostics generated". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100543 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-06reduce indentation, tidy.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100537 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-06Make code-completion for Objective-C message sends to "id" work in theDouglas Gregor
presence of precompiled headers by forcibly loading all of the methods we know about from the PCH file before constructing our code-completion list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100535 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Make Diagnostic reference-counted, which is simpler than jugglingDouglas Gregor
maybe-ownership vs. ownership. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100498 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Match MemoryBuffer API changes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100484 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Clarify the ownership semantics of the Diagnostic object used byDouglas Gregor
ASTUnit. Previously, we would end up with use-after-free errors because the Diagnostic object would be creating in one place (say, CIndex) and its ownership would not be transferred into the ASTUnit. Fixes <rdar://problem/7818608>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100464 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Minor ASTUnit cleanups:Douglas Gregor
- Rename "Diagnostics" and related to "StoredDiagnostics", to better capture what we're actually storing. - Move SourceManager and FileManager to the heap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100441 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01Driver: Add support for a CLANGXX_IS_PRODUCTION build variable, which enableDaniel Dunbar
Clang++ support, even in "Production" mode (for testing purposes). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100119 91177308-0d34-0410-b5e6-96231b3b80d8
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