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path: root/lib/Sema/SemaDecl.cpp
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2009-04-19Add more thorough/correct checking for invalid __thread specifiers.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69542 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19add a new Sema::CurFunctionNeedsScopeChecking bool that is used to avoid Chris Lattner
calling into the jump checker when a function or method is known to contain no VLAs or @try blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19move jump scope checking and related code out into its own file, SemaDecl.cpp isChris Lattner
already too large. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69505 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19rewrite an O(N^2) algorithm to be O(n).Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19second half of indirect jump checking: make sure that any Chris Lattner
address taken labels are in function scope git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69499 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19First half of jump scope checking for indirect goto.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69498 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18reimplement DeclStmt handling so that we correctly handle intermixed Chris Lattner
VLA's and statement expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69491 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18the scope checker does work with objc methods, add testcase.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69487 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18I didn't understand how @catches were chained. Now that I get it, fixChris Lattner
the scope checker to not think @catches are nested in each other, eliminating some bogus notes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69486 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18forgot to commit this before.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18reject invalid jumps among pieces of @try blocks. This seems to workChris Lattner
reasonably well except for the problem that @catches are nested within each other in the AST, giving the ugly diagnostics in L8. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18unconditionally check for goto correctness. This is because switchChris Lattner
statements don't end up in the LabelMap so we don't have a quick way to filter them. We could add state to Sema (a "has vla" and "has jump" bit) to try to filter this out, but that would be sort of gross and I'm not convinced it is the best way. Thoughts welcome. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69476 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18fix two error paths out of ParseBlockLiteralExpression toChris Lattner
call ActOnBlockError so that CurBlock gets popped. This fixes a crash on test/block-syntax-error.c when this new assertion is enabled. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69464 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18refactor some code, adding a new getLabelMap() accessor methodChris Lattner
so that clients can't poke the function-local one when they really want the current block label. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69463 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18Improve switch diagnostic to emit the "jump" message on theChris Lattner
specific bad case instead of on the switch. Putting it on the switch means you don't know what case is the problem. For example: scope-check.c:54:3: error: illegal switch case into protected scope case 2: ^ scope-check.c:53:9: note: jump bypasses initialization of variable length array int a[x]; ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69462 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18first step to getting switches giving "jump into vla scope" errors.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69461 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18fix error recovery in the case of a jump to a label with no definitionChris Lattner
to create a well formed AST instead of a dangling pointer. This resolves several fixme's. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69459 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18rewrite the goto scope checking code to be more efficient, simpler,Chris Lattner
produce better diagnostics, and be more correct in ObjC cases (fixing rdar://6803963). An example is that we now diagnose: int test1(int x) { goto L; int a[x]; int b[x]; L: return sizeof a; } with: scope-check.c:15:3: error: illegal goto into protected scope goto L; ^ scope-check.c:17:7: note: scope created by variable length array int b[x]; ^ scope-check.c:16:7: note: scope created by variable length array int a[x]; ^ instead of just saying "invalid jump". An ObjC example is: void test1() { goto L; @try { L: ; } @finally { } } t.m:6:3: error: illegal goto into protected scope goto L; ^ t.m:7:3: note: scope created by @try block @try { ^ There are a whole ton of fixme's for stuff to do, but I believe that this is a monotonic improvement over what we had. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18don't evaluate ->child_end() every time through the loop, or *i frequently ↵Chris Lattner
within it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69431 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18split code out into a new CheckFunctionJumpScopes routine,Chris Lattner
add some comments, change type from void* -> Stmt*, use smallvector instead of vector. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69430 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18make scope checking be static functions instead of sema methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69429 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18FunctionDecl::getBody() is getting an ASTContext argument for use inDouglas Gregor
lazy PCH deserialization. Propagate that argument wherever it needs to be. No functionality change, except that I've tightened up a few PCH tests in preparation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17tweak redefinition of a typedef a bit to fix a couple of problems:Chris Lattner
1. We had logic in sema to decide whether or not to emit the error based on manually checking whether in a system header file. 2. we were allowing redefinitions of typedefs in class scope in C++ if in header file. 3. there was no way to force typedef redefinitions to be accepted by the C compiler, which annoys me when stripping linemarkers out of .i files. The fix is to split the C++ class typedef redefinition path from the C path, and change the C path to be a warning that normally maps to error. This causes it to properly be ignored in system headers, etc. and gives us a way to control it. Passing -Wtypedef-redefinition now turns the error into a warning. One behavior change is that we now diagnose cases where you redefine a typedef in your .c file that was defined in a header file. This seems like reasonable behavior, and the diagnostic now indicates that it can be controlled with -Wtypedef-redefinition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69391 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17fix a crash on invalid by making ActOnDeclarator create decl withChris Lattner
a dummy *function* type when it is recovering and knows it needs a function. rdar://6802350 - clang crash on invalid input git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69374 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17Add support for the __has_trivial_destructor type trait.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69345 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16If a class has a non-trivial constructor that doesn't take any arguments, we ↵Anders Carlsson
will now make an implicit CXXTemporaryObjectExpr. So struct S { S(); }; void f() { S s; } 's' here will implicitly be declared as. S s = S(); git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69326 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16use getDiagnosticLevel instead of getDiagnosticMapping, whichChris Lattner
is about to become private. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16Add support for the __has_trivial_constructor type trait.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69245 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15Fixup http://llvm.org/viewvc/llvm-project?rev=69165&view=rev (based on ↵Steve Naroff
feedback from Eli). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15Revert previous patch (will commit a fix soon).Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69178 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15Fix <rdar://problem/6789707> "warning: 'extern' variable has an initializer" ↵Steve Naroff
not correct for __private_extern__. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69167 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15Fix <rdar://problem/6791490> [clang10 regression] [sema] invalid illegal ↵Steve Naroff
jump diagnostic. caused by: <rdar://problem/6252084> [sema] jumps into Obj-C exception blocks should be disallowed. Sema::RecursiveCalcLabelScopes() and Sema::RecursiveCalcJumpScopes() need to pop the ScopeStack within the statement iteration loop (was outside the loop). Eli, please review (thanks). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69165 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14Fix <rdar://problem/6252084> [sema] jumps into Obj-C exception blocks should ↵Steve Naroff
be disallowed. This builds on Eli's work from http://llvm.org/viewvc/llvm-project?view=rev&revision=65678. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14Use hasAttr instead of getAttr for conditionals.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69021 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14Audit __private_extern__ handling.Daniel Dunbar
- Exposed quite a few Sema issues and a CodeGen crash. - See FIXMEs in test case, and in SemaDecl.cpp (PR3983). I'm skeptical that __private_extern__ should actually be a storage class value. I think that __private_extern__ basically amounts to extern A __attribute__((visibility("hidden"))) and would be better off handled (a) as that, or (b) with an extra bit in the VarDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69020 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14Fixup CodeGen for __weak __block variables. Radar 6756266Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69010 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13PR3461: reject initializer for incomplete type. Based on patch by TimEli Friedman
Northover. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13Make the selection of type declarations in Sema::getTypeNameDouglas Gregor
deterministic when faced with an ambiguity. This eliminates the annoying test/SemaCXX/using-directive.cpp failure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12fix another case that assumed that GetTypeForDeclarator would never return null.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68918 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12fix code that incorrectly assumed that GetTypeForDeclarator cannotChris Lattner
return null. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68916 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12Diagnose invalid uses of tagged types with a missing tag. For example, in:Chris Lattner
struct xyz { int y; }; enum abc { ZZZ }; static xyz b; abc c; we used to produce: t2.c:4:8: error: unknown type name 'xyz' static xyz b; ^ t2.c:5:1: error: unknown type name 'abc' abc c; ^ we now produce: t2.c:4:8: error: use of tagged type 'xyz' without 'struct' tag static xyz b; ^ struct t2.c:5:1: error: use of tagged type 'abc' without 'enum' tag abc c; ^ enum GCC produces the normal: t2.c:4: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘b’ t2.c:5: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘c’ rdar://6783347 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68914 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12fix a valgrind problem I noticed while developing another patch,Chris Lattner
if a decl is invalid, it isn't added to the Decls array, so we need to pass in Decls.size() to avoid reading uninit memory. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68913 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12a few cleanups to StatementCreatesScope: unnest the whole thing,Chris Lattner
exit at the first decl found that creates a scope, don't evaluate decl_end() every iteration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68908 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-11simplify code to use adjustParameterType, apply objc arg attributesChris Lattner
to their arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68876 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-11diagnose attempts to return objc interfaces by-value from C functions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68873 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-11Improve the 'cannot pass objc interface by value' diagnostic:Chris Lattner
1) improve localizability by not passing english strings in. 2) improve location for arguments. 3) print the objc type being passed. Before: method-bad-param.m:15:1: error: Objective-C type cannot be passed by value -(void) my_method:(foo) my_param ^ after: method-bad-param.m:15:25: error: Objective-C interface type 'foo' cannot be passed by value -(void) my_method:(foo) my_param ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68872 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10Compare the predefines buffer in the PCH file with the predefinesDouglas Gregor
buffer generated for the current translation unit. If they are different, complain and then ignore the PCH file. This effectively checks for all compilation options that somehow would affect preprocessor state (-D, -U, -include, the dreaded -imacros, etc.). When we do accept the PCH file, throw away the contents of the predefines buffer rather than parsing them, since all of the results of that parsing are already stored in the PCH file. This eliminates the ugliness with the redefinition of __builtin_va_list, among other things. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68838 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10Various minor fixes to PCH reading and writing, with generalDouglas Gregor
cleanup. Aside from a minor tweak to the PCH file format, no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68793 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Implementation of pre-compiled headers (PCH) based on lazyDouglas Gregor
de-serialization of abstract syntax trees. PCH support serializes the contents of the abstract syntax tree (AST) to a bitstream. When the PCH file is read, declarations are serialized as-needed. For example, a declaration of a variable "x" will be deserialized only when its VarDecl can be found by a client, e.g., based on name lookup for "x" or traversing the entire contents of the owner of "x". This commit provides the framework for serialization and (lazy) deserialization, along with support for variable and typedef declarations (along with several kinds of types). More declarations/types, along with important auxiliary structures (source manager, preprocessor, etc.), will follow. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68732 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Propagate the ASTContext to various AST traversal and lookup functions.Douglas Gregor
No functionality change (really). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68726 91177308-0d34-0410-b5e6-96231b3b80d8
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