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path: root/lib/CodeGen/CGBlocks.cpp
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2012-05-04This patch adds a new Clang compiler flag "-gline-tables-only".Alexey Samsonov
It reduces the amount of emitted debug information: 1) DIEs in .debug_info have types DW_TAG_compile_unit, DW_TAG_subprogram, DW_TAG_inlined_subroutine (for opt builds) and DW_TAG_lexical_block only. 2) .debug_str contains only function names. 3) No debug data for types/namespaces/variables is emitted. 4) The data in .debug_line is enough to produce valid stack traces with function names and line numbers. Reviewed by Eric Christopher. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156160 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01During block layout, after padding up to the max field alignment,John McCall
the alignment might actually exceed the max field alignment; don't assert in this case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155937 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-26Fix a bug with block layout when the block contains somethingJohn McCall
more aligned than the block header but also contains something smaller than the block-header alignment but not exactly half the difference between the large alignment and the header alignment. Got that? I'm really not sure what I was thinking with the buggy computation here, but the fix is pretty obvious. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155662 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Don't enter cleanups for unreachable variables. It's impossible toJohn McCall
jump into these scopes, and the cleanup-entering code sometimes wants to do some operations first (e.g. a GEP), which can leave us with unparented IR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-12These functions too have no prototypes. Audited the rest of Sema forEric Christopher
FunctionDecl::Create calls as well. rdar://11079003 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-12The copy and destroy helper functions aren't prototyped, don't call themEric Christopher
so. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154569 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Don't crash (assert failure) when generating blocks for C++ types with a ↵David Chisnall
non-const copy constructor. This was caused by the code deciding the number of fields in the byref structure using a different test to the part of the code creating the GEPs into said structure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154013 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-29Revert r153613 as it's causing large compile-time regressions on the nightly ↵Chad Rosier
testers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153660 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28When we can't prove that the target of an aggregate copy isJohn McCall
a complete object, the memcpy needs to use the data size of the structure instead of its sizeof() value. Fixes PR12204. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153613 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-10Remove BlockDeclRefExpr and introduce a bit on DeclRefExpr toJohn McCall
track whether the referenced declaration comes from an enclosing local context. I'm amenable to suggestions about the exact meaning of this bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152491 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Implement "optimization" for lambda-to-block conversion which inlines the ↵Eli Friedman
generated block literal for lambdas which are immediately converted to block pointer type. This simplifies the AST, avoids an unnecessary copy of the lambda and makes it much easier to avoid copying the result onto the heap. Note that this transformation has a substantial semantic effect outside of ARC: it gives the converted lambda lifetime semantics similar to a block literal. With ARC, the effect is much less obvious because the lifetime of blocks is already managed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151797 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-25Work-in-progress for lambda conversion-to-block operator. Still need to ↵Eli Friedman
implement the retain+autorelease outside of ARC, and there's a bug that causes the generated code to crash in ARC (which I think is unrelated to my code, although I'm not completely sure). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151428 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17Whether an argument is required (in contrast with being anJohn McCall
optional argument passed through the variadic ellipsis) potentially affects how we need to lower it. Propagate this information down to the various getFunctionInfo(...) overloads on CodeGenTypes. Furthermore, rename those overloads to clarify their distinct purposes, and make sure we're calling the right one in the right place. This has a nice side-effect of making it easier to construct a function type, since the 'variadic' bit is no longer separable. This shouldn't really change anything for our existing platforms, with one minor exception --- we should now call variadic ObjC methods with the ... in the "right place" (see the test case), which I guess matters for anyone running GNUStep on MIPS. Mostly it's just a substantial clean-up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150788 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07simplify a bunch of code to use the well-known LLVM IR types computed by ↵Chris Lattner
CodeGenModule. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149943 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Basic: import OwningPtr<> into clang namespaceDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149798 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Use function pointers, rather than references, to pass DestroyersPeter Collingbourne
around, in the process cleaning up the various gcc/msvc compiler workarounds. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149036 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-14constexpr irgen: Add irgen support for APValue::Struct, APValue::Union,Richard Smith
APValue::Array and APValue::MemberPointer. All APValue values can now be emitted as constants. Add new CGCXXABI entry point for emitting an APValue MemberPointer. The other entrypoints dealing with constant member pointers are no longer necessary and will be removed in a later change. Switch codegen from using EvaluateAsRValue/EvaluateAsLValue to VarDecl::evaluateValue. This performs caching and deals with the nasty cases in C++11 where a non-const object's initializer can refer indirectly to previously-initialized fields within the same object. Building the intermediate APValue object incurs a measurable performance hit on pathological testcases with huge initializer lists, so we continue to build IR directly from the Expr nodes for array and record types outside of C++11. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148178 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03Switch LValue so that it exposes alignment in CharUnits. (No functional ↵Eli Friedman
change.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145753 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-10Whenever explicitly activating or deactivating a cleanup, weJohn McCall
need to provide a 'dominating IP' which is guaranteed to dominate the (de)activation point but which cannot be avoided along any execution path from the (de)activation point to the push-point of the cleanup. Using the entry block is bad mojo. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144276 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-10Enter the cleanups for a block outside the enclosingJohn McCall
full-expression. Naturally they're inactive before we enter the block literal expression. This restores the intended behavior that blocks belong to their enclosing scope. There's a useful -O0 / compile-time optimization that we're missing here with activating cleanups following straight-line code from their inactive beginnings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144268 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-09Emit the copy and dipose helpers for ARC __strongJohn McCall
block-typed __block variables using objc_retainBlock and objc_dispose. Previously we were using _Block_object_assign and _Block_object_destroy with BLOCK_BYREF_CALLER, which causes the runtime to completely ignore the retain and release. In most cases this doesn't cause catastrophe because the retain/release are balanced and because the block in the variable was copied upon assignment there. However, the stack copy of the variable will be released when it goes out of scope, which is a problem if that value was released due to an assignment to the heap copy. Similarly, a leak can occur if the variable is assigned after the copy to the heap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144162 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-02back out changes in r143399 and r143475.Fariborz Jahanian
rvale-references are captured by reference in blocks. // rdar://9971124. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143583 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31Adds IRGen support for captured rvalue references in blocks.Fariborz Jahanian
In this case, temporary value is copied into block descriptor as their own copy to work on. // rdar://9971124 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-13Recommit:Eric Christopher
Start handling debug line and scope information better: Migrate most of the location setting within the larger API in CGDebugInfo and update a lot of callers. Remove the existing file/scope change machinery in UpdateLineDirectiveRegion and replace it with DILexicalBlockFile usage. Finishes off the rest of rdar://10246360 after fixing a few bugs that were exposed in gdb testsuite testing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141893 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-12Revert file/scope handling patches. gdb testing revealed a couple of bugs.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141796 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Start handling debug line and scope information better:Eric Christopher
Migrate most of the location setting within the larger API in CGDebugInfo and update a lot of callers. Remove the existing file/scope change machinery in UpdateLineDirectiveRegion and replace it with DILexicalBlockFile usage. Finishes off the rest of rdar://10246360 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141732 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-30Minor cleanup.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140866 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27de-tmpify clang.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Switch LangOptions over to a .def file that describes header of theDouglas Gregor
language options. Use that .def file to declare the LangOptions class and initialize all of its members, eliminating a source of annoying initialization bugs. AST serialization changes are next up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09Treat the weak export of block runtime symbols as a deployment-targetJohn McCall
feature akin to the ARC runtime checks. Removes a terrible hack where IR gen needed to find the declarations of those symbols in the translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12switch clang to use the new-new way of creating llvm::StructType's.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137472 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09Cleanup; no functionality change.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137126 91177308-0d34-0410-b5e6-96231b3b80d8
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
2011-07-18de-constify llvm::Type, patch by David Blaikie!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135370 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Generalize Cleanup::Emit's "isForEH" parameter into a setJohn McCall
of flags. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134997 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Ugh, use this compiler workaround again.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134989 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Switch field destruction over to use the new destroyer-based APIJohn McCall
and kill a lot of redundant code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11De-constify Types in StructType::get() and TargetData::getIntPtrType().Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134893 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-09clang side to match the LLVM IR type system rewrite patch.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06revert patch for // rdar://9227352Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29Use existing -fcatch-undefined-behavior option,Fariborz Jahanian
replacing -freset-local-blocks. // rdar://9227352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134082 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Under a compiler flag, -freset-local-blocks,Fariborz Jahanian
wipe out stack blocks when they go out of scope. // rdar://9227352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134045 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Update to match mainline ConstantStruct::get API change. Also, use Chris Lattner
ConvertType on InitListExprs as they are being converted. This is needed for a forthcoming patch, and improves the IR generated anyway (see additional type names in testcases). This patch also converts a bunch of std::vector's in CGObjCMac to use C arrays. There are a ton more that should be converted as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-18update for api change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133365 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Restore correct use of GC barriers.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133144 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Automatic Reference Counting.John McCall
Language-design credit goes to a lot of people, but I particularly want to single out Blaine Garst and Patrick Beard for their contributions. Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself, in no particular order. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Implement support for C++11 in-class initialization of non-static data members.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132878 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Use arrays and SmallVectors instead of std::vectors when building functionJohn McCall
types. Also, cache a translation of 'void' in CGM and provide a ptrdiff_t alias. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131373 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13When determining whether we can make a declaration into a globalDouglas Gregor
constant, also consider whether it's a class type that has any mutable fields. If so, it can't be a global constant. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131276 91177308-0d34-0410-b5e6-96231b3b80d8
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