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* Revert "Update for llvm api change."Rafael Espindola2014-03-261-1/+1
| | | | | | This reverts commit r204783. llvm-svn: 204785
* Update for llvm api change.Rafael Espindola2014-03-261-1/+1
| | | | llvm-svn: 204783
* MS ABI: Eliminate Duplicate StringsDavid Majnemer2014-03-241-18/+60
| | | | | | | | | | | | | | | | | | | | | | | | COFF doesn't have mergeable sections so LLVM/clang's normal tactics for string deduplication will not have any effect. To remedy this we place each string inside it's own section and mark the section as IMAGE_COMDAT_SELECT_ANY. However, we can only do this if the string has an external name that we can generate from it's contents. To be compatible with MSVC, we must use their scheme. Otherwise identical strings in translation units from clang may not be deduplicated with translation units in MSVC. This fixes PR18248. N.B. We will not attempt to do anything with a string literal which is not of type 'char' or 'wchar_t' because their compiler does not support unicode string literals as of this date. Further, we avoid doing this if either -fwritable-strings or -fsanitize=address are present. This reverts commit r204596. llvm-svn: 204675
* Revert r204562,204566,204586,204587 as they broke ASan on WindowsTimur Iskhodzhanov2014-03-241-56/+18
| | | | llvm-svn: 204596
* MS ABI: Add tests, other cleanups for r204562David Majnemer2014-03-241-8/+4
| | | | | | | | | | | | | This commit cleans up a few accidents: - Do not rely on the order in which StringLiteral lays out bytes. - Use a more efficient mechanism for handling so-called "special-mappings" when mangling string literals. - There is no need to allocate a copy of the mangled name. - Add the test written for r204562. Thanks to Richard Smith for pointing these out! llvm-svn: 204586
* MS ABI: Eliminate Duplicate StringsDavid Majnemer2014-03-231-18/+60
| | | | | | | | | | | | | | | | | | | | | COFF doesn't have mergeable sections so LLVM/clang's normal tactics for string deduplication will not have any effect. To remedy this we place each string inside it's own section and mark the section as IMAGE_COMDAT_SELECT_ANY. However, we can only do this if the string has an external name that we can generate from it's contents. To be compatible with MSVC, we must use their scheme. Otherwise identical strings in translation units from clang may not be deduplicated with translation units in MSVC. This fixes PR18248. N.B. We will not attempt to do anything with a string literal which is not of type 'char' or 'wchar_t' because their compiler does not support unicode string literals as of this date. llvm-svn: 204562
* [C++11] Replacing ObjCCategoryDecl iterators propimpl_begin() and ↵Aaron Ballman2014-03-141-4/+1
| | | | | | propimpl_end() with iterator_range property_impls(). Updating all of the usages of the iterators with range-based for loops. llvm-svn: 203930
* [C++11] Replacing ObjCContainerDecl iterators meth_begin() and meth_end() ↵Aaron Ballman2014-03-131-4/+2
| | | | | | with iterator_range methods(). Updating all of the usages of the iterators with range-based for loops. llvm-svn: 203832
* Simplify code. No functionality change.Rafael Espindola2014-03-131-5/+5
| | | | llvm-svn: 203804
* Revert "CodeGen: Use a binary format for instrumentation based profiling"Justin Bogner2014-03-121-10/+3
| | | | | | | | | I've clearly done something wrong with how to get this to link correctly. Reverting for now. This reverts commit r203711. llvm-svn: 203712
* CodeGen: Use a binary format for instrumentation based profilingJustin Bogner2014-03-121-3/+10
| | | | | | | | This updates CodeGenPGO to use the ProfileDataReader introduced to llvm in r203703 and the new API for writing out the profile introduced to compiler-rt in r203710. llvm-svn: 203711
* [C++11] Replacing DeclBase iterators specific_attr_begin() and ↵Aaron Ballman2014-03-101-4/+2
| | | | | | specific_attr_end() with iterator_range specific_attrs(). Updating all of the usages of the iterators with range-based for loops. llvm-svn: 203474
* [C++11] Update Clang for the change to LLVM's Use-Def chain iterators inChandler Carruth2014-03-091-2/+2
| | | | | | | | | r203364: what was use_iterator is now user_iterator, and there is a use_iterator for directly iterating over the uses. This also switches to use the range-based APIs where appropriate. llvm-svn: 203365
* [C++11] Replacing DeclBase iterators decls_begin() and decls_end() with ↵Aaron Ballman2014-03-071-8/+6
| | | | | | iterator_range decls(). The same is true for the noload versions of these APIs. Updating all of the usages of the iterators with range-based for loops. llvm-svn: 203278
* Use llvm.compiler.used instead of llvm.used for objc symbols.Rafael Espindola2014-03-061-14/+26
| | | | | | | | | | | | | LLVM currently has a hack (shouldEmitUsedDirectiveFor) that causes it to not print no_dead_strip for symbols starting with 'l' or 'L'. These are exactly the ones that the clang's objc codegen is producing. The net result, is that it is equivalent to llvm.compiler.used. The need for putting the private symbol in llvm.compiler.used should be clear (the objc runtime uses them). The reason for also putting the weak symbols in it is for LTO: ld64 will not ask us to preserve the it. llvm-svn: 203172
* [Modules] Update to reflect the move of CallSite into the IR library inChandler Carruth2014-03-041-1/+1
| | | | | | LLVM r202816. llvm-svn: 202817
* DebugInfo: Emit only the declaration of a class template that has an ↵David Blaikie2014-03-031-1/+9
| | | | | | | | | | | | | | | | | | | | | | | explicit instantiation declaration (& always emit such a type when there's an explicit instantiation definition) We should only have this optimization fire when the explicit instantiation definition would cause at least one member function to be emitted, thus ensuring that even a compiler not performing this optimization would still emit the full type information elsewhere. But we should also pessimize output still by always emitting the definition when the explicit instantiation definition appears so that at some point in the future we can depend on that information even when no code had to be emitted in that TU. (this shouldn't happen very often, since people mostly use explicit spec decl/defs to reduce code size - but perhaps one day they could use it to explicitly reduce debug info size too) This was worth about 2% for Clang and LLVM - so not a huge win, but a win. It looks really great for simple STL programs (include <string> and just declare a string - 14k -> 1.4k of .dwo) llvm-svn: 202769
* Attr: Remove ForceInlineDavid Majnemer2014-02-251-4/+2
| | | | | | | | | | The __forceinline keyword's semantics are now recast as AlwaysInline and the kw___forceinline token has its language mode set for KEYMS. This preserves the semantics of the previous implementation but with less duplication of code. llvm-svn: 202131
* Exposing the noduplicate attribute within Clang, which marks functions so ↵Aaron Ballman2014-02-221-0/+2
| | | | | | | | that the optimizer does not duplicate code. Patch thanks to Marcello Maggioni! llvm-svn: 201941
* DebugInfo: imported_decl/using declarations at namespace scopeDavid Blaikie2014-02-151-1/+4
| | | | llvm-svn: 201470
* XCore target: add section information.Robert Lytton2014-02-111-0/+6
| | | | | | | | Xcore target ABI requires const data that is externally visible to be handled differently if it has C-language linkage rather than C++ language linkage. llvm-svn: 201142
* [stackprotector] Add command line option -fstack-protector-strongJosh Magee2014-02-111-0/+2
| | | | | | | | | | This option has the following effects: * It adds the sspstrong IR attribute to each function within the CU. * It defines the macro __SSP_STRONG__ with the value of 2. Differential Revision: http://llvm-reviews.chandlerc.com/D2717 llvm-svn: 201120
* Remove the -fhidden-weak-vtables -cc1 option. It was dead,John McCall2014-02-081-67/+0
| | | | | | gross, and increasingly replaced through other mechanisms. llvm-svn: 201011
* [ms-cxxabi] Fix cast when structor replacement is an aliasReid Kleckner2014-02-031-4/+8
| | | | llvm-svn: 200711
* Enforce safe usage of DiagnosticsEngine::getCustomDiagID()Alp Toker2014-01-261-3/+3
| | | | | | | | | | | | | | | | Replace the last incorrect uses and templatize the function to require a compile-time constant string preventing further misuse. The diagnostic formatter expects well-formed input and has undefined behaviour with arbitrary input or crafted user strings in source files. Accepting user input would also have caused unbounded generation of new diagnostic IDs which can be problematic in long-running sessions or language bindings. This completes the work to fix several incorrect callers that passed user input or raw messages to the diagnostics engine where a constant format string was expected. llvm-svn: 200132
* Use private linkage for utf-16 objc strings too.Rafael Espindola2014-01-211-9/+2
| | | | llvm-svn: 199709
* Now that r199688 avoids the real issue, use private linkage for objc strings.Rafael Espindola2014-01-211-5/+2
| | | | llvm-svn: 199705
* Give explicit sections for string constants used in NSStrings.Rafael Espindola2014-01-201-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Without them they can be merged with non unnamed_addr constants during LTO. The resulting constant is not unnamed_addr and goes in a different section, which causes ld64 to crash. A testcase that would crash before: * file1.mm: void g(id notification) { [notification valueForKey:@"name"]; } * file2.cpp: extern const char js_name_str[] = "name"; * file3.cpp extern bool JS_GetProperty(const char *name); extern const char js_name_str[]; bool js_ReportUncaughtException() { JS_GetProperty(js_name_str); } run clang file1.mm -o file1.o -c -w -emit-llvm clang file2.cpp -o file2.o -c -w -emit-llvm clang file3.cpp -o file3.o -c -w ld -dylib -o XUL file1.o file2.o file3.o -undefined dynamic_lookup. llvm-svn: 199688
* Simplify further.Rafael Espindola2014-01-201-7/+5
| | | | | | Thanks to David Blaikie for the push. llvm-svn: 199685
* Remove virtual methods that were added in 2009 and still had 1 implementation.Rafael Espindola2014-01-201-7/+9
| | | | llvm-svn: 199665
* Update CodeGen to use DLL storage class for dllimport/dllexportNico Rieck2014-01-141-9/+17
| | | | | | | With the old linkage types removed, set the linkage to external for both dllimport and dllexport to reflect what's currently supported. llvm-svn: 199220
* Remove unused include.Rafael Espindola2014-01-071-1/+0
| | | | llvm-svn: 198692
* Sort all the #include lines with LLVM's utils/sort_includes.py whichChandler Carruth2014-01-071-1/+1
| | | | | | | encodes the canonical rules for LLVM's style. I noticed this had drifted quite a bit when cleaning up LLVM, so wanted to clean up Clang as well. llvm-svn: 198686
* CodeGen: Initial instrumentation based PGO implementationJustin Bogner2014-01-061-1/+10
| | | | llvm-svn: 198640
* Tidy up CGCXXABI creationAlp Toker2013-12-281-5/+4
| | | | | | | | | | 'create' functions conventionally return a pointer, not a reference. Also use an OwningPtr to get replace the delete of a reference member. No functional change. llvm-svn: 198126
* Switched code from using hasAttr followed by getAttr to simply call getAttr ↵Aaron Ballman2013-12-191-2/+1
| | | | | | | | directly and check the resulting value. No functional changes intended. llvm-svn: 197652
* Replacing calls to getAttr with calls to hasAttr for clarity. No functional ↵Aaron Ballman2013-12-191-4/+4
| | | | | | change intended -- this only replaces Boolean uses of getAttr. llvm-svn: 197648
* ASTContext: Refactor implicit record creationAlp Toker2013-12-171-16/+2
| | | | | | | | Tidy up built-in record creation to reduce code duplication. Continuation of r197336. llvm-svn: 197452
* [ms-cxxabi] Fix linkage of dtor thunks for anonymous classesReid Kleckner2013-12-111-6/+8
| | | | | | | | | | We were mistakengly giving linkonce_odr linkage instead of internal linkage to the deleting and complete destructor thunks for classes in anonymous namespaces. Fixes PR17273. llvm-svn: 197060
* Save another call to GetAddrOfFunction.Rafael Espindola2013-12-091-6/+8
| | | | | | | Thread an optional GV down to EmitGlobalFunctionDefinition so that it can avoid the lookup when we already know the corresponding llvm global value. llvm-svn: 196789
* When we decide to output a deferred decl, remember the llvm GlobalValue.Rafael Espindola2013-12-091-23/+24
| | | | | | | | | We can reuse it to avoid a DenseMap+StringMap lookup to find if it was already emitted or not. This fixes a 2010 TODO. llvm-svn: 196785
* Avoid adding some decls to DeferredDeclsToEmit.Rafael Espindola2013-12-091-57/+66
| | | | | | | | Before this patch GetOrCreateLLVMFunction would add a decl to DeferredDeclsToEmit even when it was being called by the function trying to emit that decl. llvm-svn: 196753
* GlobalAlias::isDeclaration is always false. Remove dead code.Rafael Espindola2013-12-081-5/+0
| | | | llvm-svn: 196727
* Debug Info: Move the constant for Debug Info Version from Dwarf.h to Metadata.h.Manman Ren2013-12-021-1/+1
| | | | | | | Suggested by Eric. Paired commit with r196144. llvm-svn: 196145
* Expand comments for Debug Info Version.Manman Ren2013-12-021-1/+4
| | | | llvm-svn: 196143
* [CodeGen] If there is a function definition with duplicate mangled name, ↵Argyrios Kyrtzidis2013-11-231-0/+4
| | | | | | | | emit an error instead of asserting. rdar://15522601 & http://llvm.org/PR18031 llvm-svn: 195556
* Debug Info: add a "Debug Info Version" module flag to output the current debugManman Ren2013-11-221-0/+5
| | | | | | | | info version number. Will error out when modules have different version numbers. llvm-svn: 195495
* [-cxx-abi microsoft] Emit linkonce_odr definitions for declarations of ↵Hans Wennborg2013-11-211-0/+15
| | | | | | | | | | | | | | | static data members with inline initializers (PR17689) This makes Clang emit a linkonce_odr definition for 'val' in the code below, to be compatible with MSVC-compiled code: struct Foo { static const int val = 1; }; Differential Revision: http://llvm-reviews.chandlerc.com/D2233 llvm-svn: 195283
* Fix test failures after addrspacecast added.Matt Arsenault2013-11-151-4/+8
| | | | | | Bitcasts between address spaces are no longer allowed. llvm-svn: 194765
* [OpenCL] Make sure we put string literals in the constant address space.Joey Gouly2013-11-141-4/+9
| | | | llvm-svn: 194717
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