aboutsummaryrefslogtreecommitdiff
path: root/lib/CodeGen/CGObjCRuntime.cpp
AgeCommit message (Collapse)Author
2013-04-16Standardize accesses to the TargetInfo in IR-gen.John McCall
Patch by Stephen Lin! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179638 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-28Use the actual ABI-determined C calling convention for runtimeJohn McCall
calls and declarations. LLVM has a default CC determined by the target triple. This is not always the actual default CC for the ABI we've been asked to target, and so we sometimes find ourselves annotating all user functions with an explicit calling convention. Since these calling conventions usually agree for the simple set of argument types passed to most runtime functions, using the LLVM-default CC in principle has no effect. However, the LLVM optimizer goes into histrionics if it sees this kind of formal CC mismatch, since it has no concept of CC compatibility. Therefore, if this module happens to define the "runtime" function, or got LTO'ed with such a definition, we can miscompile; so it's quite important to get this right. Defining runtime functions locally is quite common in embedded applications. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176286 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06Rework the bitfield access IR generation to address PR13619 andChandler Carruth
generally support the C++11 memory model requirements for bitfield accesses by relying more heavily on LLVM's memory model. The primary change this introduces is to move from a manually aligned and strided access pattern across the bits of the bitfield to a much simpler lump access of all bits in the bitfield followed by math to extract the bits relevant for the particular field. This simplifies the code significantly, but relies on LLVM to intelligently lowering these integers. I have tested LLVM's lowering both synthetically and in benchmarks. The lowering appears to be functional, and there are no really significant performance regressions. Different code patterns accessing bitfields will vary in how this impacts them. The only real regressions I'm seeing are a few patterns where the LLVM code generation for loads that feed directly into a mask operation don't take advantage of the x86 ability to do a smaller load and a cheap zero-extension. This doesn't regress any benchmark in the nightly test suite on my box past the noise threshold, but my box is quite noisy. I'll be watching the LNT numbers, and will look into further improvements to the LLVM lowering as needed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169489 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort all of Clang's files under 'lib', and fix up the broken headersChandler Carruth
uncovered. This required manually correcting all of the incorrect main-module headers I could find, and running the new llvm/utils/sort_includes.py script over the files. I also manually added quite a few missing headers that were uncovered by shuffling the order or moving headers up to be main-module-headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Put something sane in the DWARF offset field for bitfield ObjC ivars.Eli Friedman
This is useful because unnamed bitfields can have effects on the offsets which are not otherwise reflected in the DWARF information. <rdar://problem/12629719> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167503 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Back out 167431+167437+167487; I didn't realize how incomplete our testEli Friedman
coverage of this code is. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167495 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Propagate CharUnits into ObjC CodeGen. No intended functional change.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167431 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-07Distinguish more carefully between free functions and C++ instance methodsJohn McCall
in the ABI arrangement, and leave a hook behind so that we can easily tweak CCs on platforms that use different CCs by default for C++ instance methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159894 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27Propagate lvalue alignment into bitfields. Per report on cfe-dev.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159295 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Documentation fix: made the name given to \param match the code.James Dennett
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158511 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
2012-02-17Whether 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
2012-01-17When initializing a catch variable in ARC, be sure to emit retainsJohn McCall
or whatever else is required for the initialization instead of assuming it can be done with a simple store. Fixes PR11732. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148325 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-19Switch a few callers of MakeAddrLValue places over to ↵Eli Friedman
MakeNaturalAlignAddrLValue. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146920 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15Replace all comparisons between ObjCInterfaceDecl pointers with callsDouglas Gregor
to declaresSameEntity(), as a baby step toward tracking forward declarations of Objective-C classes precisely. Part of <rdar://problem/10583531>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146618 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-19Add block information for ObjC @catch blocks.Eric Christopher
Fixes rdar://10282889 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142467 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-10Constant expression evaluation refactoring:Richard Smith
- Remodel Expr::EvaluateAsInt to behave like the other EvaluateAs* functions, and add Expr::EvaluateKnownConstInt to capture the current fold-or-assert behaviour. - Factor out evaluation of bitfield bit widths. - Fix a few places which would evaluate an expression twice: once to determine whether it is a constant expression, then again to get the value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141561 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Refactor the load of the exception pointer and the exception selector from theirBill Wendling
storage slot into helper functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139826 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Extend the ASTContext constructor to delay the initialization ofDouglas Gregor
builtin types (When requested). This is another step toward making ASTUnit build the ASTContext as needed when loading an AST file, rather than doing so after the fact. No actual functionality change (yet). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11Simplify EH control flow by observing that EH scopes form a simpleJohn McCall
hierarchy of delegation, and that EH selector values are meaningful function-wide (good thing, too, or inlining wouldn't work). 2,3d 1a hierarchy of delegation and that EH selector values have the same meaning everywhere in the function instead of being meaningful only in the context of a specific selector. This removes the need for routing edges through EH cleanups, since a cleanup simply always branches to its enclosing scope. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137293 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27The lock operand to an @synchronized statement is also John McCall
supposed to be a full-expression; make it so. In ARC, make sure we retain the lock for the entire protected block. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136271 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
2011-07-22Add a const overload for ObjCInterfaceDecl::all_declared_ivar_begin.Jordy Rose
This was previously not-const only because it has to lazily construct a chain of ivars the first time it is called (and after the chain is invalidated). In practice, all the clients were just const_casting their const Decls; all those now-unnecessary const_casts have been removed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135741 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
2011-07-15Convert CallInst and InvokeInst APIs to use ArrayRef.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135265 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
2011-06-28Eliminate most uses of ShallowCollectObjCIvars which requiresFariborz Jahanian
a vector for collection. Use iterators where needed instead. // rdar://6817577 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134015 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Emit @finally blocks completely lazily instead of forcing theirJohn McCall
existence by always threading an edge from the catchall. Not doing this was previously causing a crash in the very extreme case where neither the normal cleanup nor the EH catchall was actually reachable: we would delete the catchall entry block, which would cause us to delete the entry block of the finally cleanup as well because the cleanup logic would merge the blocks, which in turn triggered an assert because later blocks in the finally would still be using values from the entry. Laziness turns out to be the most elegant solution to the problem. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133601 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
2011-05-23Fix some problems where functions must be bitcast but we're expecting a ↵David Chisnall
llvm::Function of the right type. PR9994. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131930 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Make this code more resilient against catch variables which need cleanups.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131215 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22Replace some literal 8s with char width and char align. No change inKen Dyck
functionality intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129996 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-14Replace a couple of divide-by-8s with divide-by-charwidths. No change inKen Dyck
functionality intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129496 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25Continuing work on ObjC tidyup:David Chisnall
- Moved the CGObjCRuntime functions out of CGObjCMac.cpp into CGObjCRuntime.cpp - Added generic functions in CGObjCRuntime for emitting @try and @synchronize blocks, usable by any runtime that uses DWARF exceptions. - Made the GNU runtimes use these functions. It should now be possible to replace the equivalent functions in CGObjCNonFragileABIMac with simple calls to these two functions, providing the runtime functions as arguments. I'll post a diff to the list for review before making any changes to the Mac runtime stuff. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128274 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-08-05 04:29:44 +0000