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2011-02-28Use single code path to handle c++ structs and classes while generating ↵Devang Patel
debug info. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126691 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Revert r126678.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126685 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28objc IRGen for Next runtime message API.Fariborz Jahanian
The prototype for objc_msgSend() is technically variadic - `id objc_msgSend(id, SEL, ...)`. But all method calls should use a prototype that matches the method, not the prototype for objc_msgSend itself(). // rdar://9048030 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126678 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Make skipping of vardecls more precise: it's ok to skip a decl if the entireChris Lattner
compound stmt containing the decl is skipped. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126639 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28make switch constant folding a bit stronger, handling a missed case.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126638 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Add a -fcxx-exceptions flag to the frontend, which can be used to enableAnders Carlsson
C++ exceptions, even when exceptions have been turned off using -fno-exceptions. Make the -fobjc-exceptions flag do the same thing, but for Objective-C exceptions. C++ and Objective-C exceptions can also be disabled using -fno-cxx-excptions and -fno-objc-exceptions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126630 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28remove a bogus assertion, add a comment.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126603 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28make switch condition constant folding much more aggressive, handling Chris Lattner
compound statements and break statements. This implements enough to handle PR9322 and rdar://6970405. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126602 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28fix my containsBreak predicate.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126600 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Get rid of the areExceptionsEnabled() getter from LangOptions.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126598 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28First tiny step to implementing PR9322: build infrastructure for only ↵Chris Lattner
emitting the live case of a switch statement when switching on a constant. This is terribly limited, but enough to handle the trivial example included. Before we would emit: define void @test1(i32 %i) nounwind { entry: %i.addr = alloca i32, align 4 store i32 %i, i32* %i.addr, align 4 switch i32 1, label %sw.epilog [ i32 1, label %sw.bb ] sw.bb: ; preds = %entry %tmp = load i32* %i.addr, align 4 %inc = add nsw i32 %tmp, 1 store i32 %inc, i32* %i.addr, align 4 br label %sw.epilog sw.epilog: ; preds = %sw.bb, %entry switch i32 0, label %sw.epilog3 [ i32 1, label %sw.bb1 ] sw.bb1: ; preds = %sw.epilog %tmp2 = load i32* %i.addr, align 4 %add = add nsw i32 %tmp2, 2 store i32 %add, i32* %i.addr, align 4 br label %sw.epilog3 sw.epilog3: ; preds = %sw.bb1, %sw.epilog ret void } now we emit: define void @test1(i32 %i) nounwind { entry: %i.addr = alloca i32, align 4 store i32 %i, i32* %i.addr, align 4 %tmp = load i32* %i.addr, align 4 %inc = add nsw i32 %tmp, 1 store i32 %inc, i32* %i.addr, align 4 ret void } This improves -O0 compile time (less IR to generate and shove through the code generator) and the clever linux kernel people found a way to fail to build if we don't do this optimization. This step isn't enough to handle the kernel case though. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126597 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Add some helper methods that will be used in my next patch.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126596 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27Change the interface to ConstantFoldsToSimpleInteger to not encode Chris Lattner
a bool + success into one tri-state integer, simplifying things. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126592 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-26Don't assume that whoever is asking for a message send is goingJohn McCall
to give us a non-null return slot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126544 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-26Zero-initialize the struct-return slot of an Objective-C messageJohn McCall
send before making the call. Fixes rdar://problem/7854674 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126543 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-26A much-delayed response to Ken Dyck's review: make this somewhat moreJohn McCall
char-width agnostic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126542 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-26Pretty up the emission of field l-values and use volatile and TBAA whenJohn McCall
loading references as part of that. Use 'char' TBAA when accessing (immediate!) fields of a may_alias struct; fixes PR9307. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126540 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25Tame an assert; the scope depth of a jump destination does notJohn McCall
necessarily enclose the innermost normal cleanup depth, because the top of the jump scope stack might be an EH cleanup or EH scope. Fixes PR9303. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126472 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24Use private linkage to avoid symbol conflicts in corner cases like the oneRafael Espindola
in PR9301. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126422 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23Fix type mismatch between property function that CGObjCGNU was returning and ↵David Chisnall
the one CGObjC was calling. Fixes bug r9294. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126312 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Emit the structure layout of the block literal parameter to a blockJohn McCall
invocation function into the debug info. Rather than faking up a class, which is tricky because of the custom layout we do, we just emit a struct directly from the layout information we've already got. Also, don't emit an unnecessarily parameter alloca for this "variable". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126255 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22A constructor call should force class's debug info even if ↵Devang Patel
-flimit-debug-info is enabled. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126246 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Use LLVM coding standard.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126232 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Establish the iteration variable of an ObjC for-in loop beforeJohn McCall
emitting the collection expression. Fixes some really, really broken code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126193 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Reorganize the emission of local variables.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126189 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22lib/CodeGen/TargetInfo.cpp: On Win64, arg i128 should be emitted as INDIRECT.NAKAMURA Takumi
mingw-w64's i128 tweak should be done with x86_64-mingw32. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126186 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21The instance size of a metaclass should be the size of a class. This is ↵David Chisnall
not, in fact, 0, even for very small classes. (GNU runtime) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126161 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21Bind references to opaque r-values correctly. Add a few test casesJohn McCall
for ?: on record types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126113 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20Implement the C++0x deduced 'auto' feature.Richard Smith
This fixes PR 8738, 9060 and 9132. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126069 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20Add a LangOptions::areExceptionsEnabled and start using it.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126062 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19Re-instate r125819 and r125820 with no functionality changePeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126060 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19In addition to in-class member functions marked with the "used"Douglas Gregor
attribute, we also care about those with the "constructor" attribute. Fixes PR6521. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126055 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19Revert 125820 and 125819 to fix PR9266.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126050 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19Warn about code that uses variables and functions with internal linkageJohn McCall
without defining them. This should be an error, but I'm paranoid about "uses" that end up not actually requiring a definition. I'll revisit later. Also, teach IR generation to not set internal linkage on variable declarations, just for safety's sake. Doing so produces an invalid module if the variable is not ultimately defined. Also, fix several places in the test suite where we were using internal functions without definitions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126016 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Start using enums from DIBuilder.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125990 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18If -fno-builtin is passed, tell TargetLibraryInfo toChris Lattner
turn off all builtin optimizations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125979 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18install a TargetLibraryInfo configured with the appropriate Chris Lattner
target triple. This would be a decent place to add -fno-builtin info for example. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125971 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Objective-c armv7 API for atomic properties of Fariborz Jahanian
scalar types. // rdar://7761305 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125946 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18The flags we're supposed to write into a byref struct are *not* theJohn McCall
_Block_object_* flags; it's just BLOCK_HAS_COPY_DISPOSE or not. Also, we don't need to chase forwarding pointers prior to calling _Block_object_dispose; _Block_object_dispose in fact already does this. rdar://problem/9006315 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125823 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Move CompilerInstance::LLVMContext and LLVMContext ownership to CodeGenActionPeter Collingbourne
This removes the final dependency edge from any lib outside of CodeGen to core. As a result we can, and do, trim the dependency on core from libclang, PrintFunctionNames, the unit tests and c-index-test. While at it, review and trim other unneeded dependencies. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125820 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Move TargetInfo::adjustInlineAsmType to TargetCodeGenInfoPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18implement basic support for __label__. I wouldn't be shocked if there areChris Lattner
bugs from other clients that don't expect to see a LabelDecl in a DeclStmt, but if so they should be easy to fix. This implements most of PR3429 and rdar://8287027 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125817 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17improve support for big endian targets, fixing PR8171, patchChris Lattner
by Heikki Kultala! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125784 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Remove the "conditional save" hashtables from IR generation.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125761 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Change the representation of GNU ?: expressions to use a different expressionJohn McCall
class and to bind the shared value using OpaqueValueExpr. This fixes an unnoticed problem with deserialization of these expressions where the deserialized form would lose the vital pointer-equality trait; or rather, it fixes it because this patch also does the right thing for deserializing OVEs. Change OVEs to not be a "temporary object" in the sense that copy elision is permitted. This new representation is not totally unawkward to work with, but I think that's really part and parcel with the semantics we're modelling here. In particular, it's much easier to fix things like the copy elision bug and to make the CFG look right. I've tried to update the analyzer to deal with this in at least some obvious cases, and I think we get a much better CFG out, but the printing of OpaqueValueExprs probably needs some work. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125744 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Triple::MinGW64 is deprecated and removed. We can use Triple::MinGW32 instead.NAKAMURA Takumi
No one uses *-mingw64. mingw-w64 is represented as {i686|x86_64}-w64-mingw32. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125742 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Fix whitespace.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125741 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Step #1/N of implementing support for __label__: split labels intoChris Lattner
LabelDecl and LabelStmt. There is a 1-1 correspondence between the two, but this simplifies a bunch of code by itself. This is because labels are the only place where we previously had references to random other statements, causing grief for AST serialization and other stuff. This does cause one regression (attr(unused) doesn't silence unused label warnings) which I'll address next. This does fix some minor bugs: 1. "The only valid attribute " diagnostic was capitalized. 2. Various diagnostics printed as ''labelname'' instead of 'labelname' 3. This reduces duplication of label checking between functions and blocks. Review appreciated, particularly for the cindex and template bits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125733 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Ensure that the NRVO flag has some block to insert into. Fixes PR9178!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125694 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16If preprocessed token introduced empty filename then use main translation ↵Devang Patel
unit's filename for debug info entries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125672 91177308-0d34-0410-b5e6-96231b3b80d8
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