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specifier is unsed in a declaration; as it may not make the symbol
local to linkage unit as intended. Suggest using "hidden" visibility
attribute instead. // rdar://7703982
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162138 91177308-0d34-0410-b5e6-96231b3b80d8
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as it does something unexpected (but gcc compatible).
Suggest use of __attribute__((visibility("hidden")))
on declaration instead. // rdar://7703982
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161972 91177308-0d34-0410-b5e6-96231b3b80d8
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- This is designed to make it obvious that %clang_cc1 is a "test variable"
which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
can be useful to redefine what gets run as 'clang -cc1' (for example, to set
a default target).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
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incomplete type (with a warning), from Enea Zaffanella!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76451 91177308-0d34-0410-b5e6-96231b3b80d8
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This gets rid of a bunch of random InvalidDecl bools in sema, changing
us to use the following approach:
1. When analyzing a declspec or declarator, if an error is found, we
set a bit in Declarator saying that it is invalid.
2. Once the Decl is created by sema, we immediately set the isInvalid
bit on it from what is in the declarator. From this point on, sema
consistently looks at and sets the bit on the decl.
This gives a very clear separation of concerns and simplifies a bunch
of code. In addition to this, this patch makes these changes:
1. it renames DeclSpec::getInvalidType() -> isInvalidType().
2. various "merge" functions no longer return bools: they just set the
invalid bit on the dest decl if invalid.
3. The ActOnTypedefDeclarator/ActOnFunctionDeclarator/ActOnVariableDeclarator
methods now set invalid on the decl returned instead of returning an
invalid bit byref.
4. In SemaType, refering to a typedef that was invalid now propagates the
bit into the resultant type. Stuff declared with the invalid typedef
will now be marked invalid.
5. Various methods like CheckVariableDeclaration now return void and set the
invalid bit on the decl they check.
There are a few minor changes to tests with this, but the only major bad
result is test/SemaCXX/constructor-recovery.cpp. I'll take a look at this
next.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70020 91177308-0d34-0410-b5e6-96231b3b80d8
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tentative definitions off to the ASTConsumer at the end of the
translation unit.
Eliminate CodeGen's internal tracking of tentative definitions, and
instead hook into ASTConsumer::CompleteTentativeDefinition. Also,
tweak the definition-deferal logic for C++, where there are no
tentative definitions.
Fixes <rdar://problem/6808352>, and will make it much easier for
precompiled headers to cope with tentative definitions in the future.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69681 91177308-0d34-0410-b5e6-96231b3b80d8
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Tests and drivers updated, still need to shuffle dirs.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67602 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67530 91177308-0d34-0410-b5e6-96231b3b80d8
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there is a previous declaration marked "static". This fixes PR3645.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67336 91177308-0d34-0410-b5e6-96231b3b80d8
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translation unit.
Thread the various declarations of variables via
VarDecl::getPreviousDeclaration.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66601 91177308-0d34-0410-b5e6-96231b3b80d8
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definitions. We were rejecting tentative definitions of incomplete
(which is bad), and now we don't.
This fix is partial because we don't do the end-of-translation-unit
initialization for tentative definitions that don't ever have any
initializers specified.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66584 91177308-0d34-0410-b5e6-96231b3b80d8
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- If a declaration is an invalid redeclaration of an existing name,
complain about the invalid redeclaration then avoid adding it to
the AST (we can still parse the definition or initializer, if any).
- If the declaration is invalid but there is no prior declaration
with that name, introduce the invalid declaration into the AST
(for later error recovery).
- If the declaration is an invalid redeclaration of a builtin that
starts with __builtin_, we produce an error and drop the
redeclaration. If it is an invalid redeclaration of a library
builtin (e.g., malloc, printf), warn (don't error!) and drop the
redeclaration.
If a user attempts to define a builtin, produce an error and (if it's
a library builtin like malloc) suggest -ffreestanding.
This addresses <rdar://problem/6097585> and PR2892. However, PR3588 is
still going to cause some problems when builtins are redeclared
without a prototype.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64639 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64081 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64080 91177308-0d34-0410-b5e6-96231b3b80d8
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"previously defined here" diagnostics all notes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59920 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56280 91177308-0d34-0410-b5e6-96231b3b80d8
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incomplete array types are completed (and diagnosed properly).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54612 91177308-0d34-0410-b5e6-96231b3b80d8
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code was trying to handle arrays specially (which didn't work for pointers to array). Removed local helper function areEquivalentArrayTypes(), replacing it's use with the more general ASTContext::typesAreCompatible() predicate.
Even though the test case this fixes is in "tentative-decls.c", this bug didn't have anything to do with our handling of tentative definitions (which is what I first expected). In any event, this is a tricky area of the spec.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54583 91177308-0d34-0410-b5e6-96231b3b80d8
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- Move checking from MergeVarDecl->FinializeDeclaratorGroup. Since MergeVarDecl is called before the initializer is attacted, it can't be done there (this removes a long standing FIXME).
- Add Sema::isTentativeDefinition() and Sema::CheckForFileScopedRedefinitions().
- Remove FIXME's and touch-up test case.
Still some more work to do (forthcoming)...
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54533 91177308-0d34-0410-b5e6-96231b3b80d8
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errors when parsing AppKit that gcc does not.
Teach Sema::MergeVarDecl() about __private_extern__.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51005 91177308-0d34-0410-b5e6-96231b3b80d8
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re-work to fully handle tentative decls.
This includes a fix to bz1908.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46540 91177308-0d34-0410-b5e6-96231b3b80d8
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