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2010-12-06Rename CXXExprWithTemporaries -> ExprWithCleanups; there's no theoreticalJohn McCall
reason this is limited to C++, and it's certainly not limited to temporaries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120996 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Fix a bug in the emission of __real/__imag l-values on scalar operands.John McCall
Fix a bug in the emission of complex compound assignment l-values. Introduce a method to emit an expression whose value isn't relevant. Make that method evaluate its operand as an l-value if it is one. Fixes our volatile compliance in C++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120931 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04More anonymous struct/union redesign. This one deals with anonymous field ↵Francois Pichet
used in a constructor initializer list: struct X { X() : au_i1(123) {} union { int au_i1; float au_f1; }; }; clang will now deal with au_i1 explicitly as an IndirectFieldDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Test case for the l-value base only being evaluated once.John McCall
Also, move the l-value emission code into CGObjC.cpp and teach it, for completeness, to store away self for a super send. Also, inline the super cases for property gets and sets and make them use the correct result type for implicit getter/setter calls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120887 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Kill the KVC l-value kind and calculate the base expression when emittingJohn McCall
the l-value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120884 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02IR Gen. part of API support for __block cxxFariborz Jahanian
objects imported into blocks. //rdar://8594790. Will have a test case coming (as well as one sent to llvm test suite). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120713 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Improve codegen for initializer lists to use memset more aggressivelyChris Lattner
when an initializer is variable (I handled the constant case in a previous patch). This has three pieces: 1. Enhance AggValueSlot to have a 'isZeroed' bit to tell CGExprAgg that the memory being stored into has previously been memset to zero. 2. Teach CGExprAgg to not emit stores of zero to isZeroed memory. 3. Teach CodeGenFunction::EmitAggExpr to scan initializers to determine whether they are profitable to emit a memset + inividual stores vs stores for everything. The heuristic used is that a global has to be more than 16 bytes and has to be 3/4 zero to be candidate for this xform. The two testcases are illustrative of the scenarios this catches. We now codegen test9 into: call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 400, i32 4, i1 false) %.array = getelementptr inbounds [100 x i32]* %Arr, i32 0, i32 0 %tmp = load i32* %X.addr, align 4 store i32 %tmp, i32* %.array and test10 into: call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 392, i32 8, i1 false) %tmp = getelementptr inbounds %struct.b* %S, i32 0, i32 0 %tmp1 = getelementptr inbounds %struct.a* %tmp, i32 0, i32 0 %tmp2 = load i32* %X.addr, align 4 store i32 %tmp2, i32* %tmp1, align 4 %tmp5 = getelementptr inbounds %struct.b* %S, i32 0, i32 3 %tmp10 = getelementptr inbounds %struct.a* %tmp5, i32 0, i32 4 %tmp11 = load i32* %X.addr, align 4 store i32 %tmp11, i32* %tmp10, align 4 Previously we produced 99 stores of zero for test9 and also tons for test10. This xforms should substantially speed up -O0 builds when it kicks in as well as reducing code size and optimizer heartburn on insane cases. This resolves PR279. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120692 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Simplify the ASTs by consolidating ObjCImplicitGetterSetterExpr and ↵John McCall
ObjCPropertyRefExpr into the latter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120643 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28BuildVirtualCall doesn't need to take a reference to a pointer.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120252 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Support compound complex operations as l-values in C++. Add a testJohn McCall
case based on CodeGen/volatile-1.c which tests the current C++ semantics, and note the many, many places we fall short of them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119402 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Implements __block API for c++ objects. There is stillFariborz Jahanian
issue with runtime which I am discussing it with Blaine. This is wip (so no test yet). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119368 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Simplify some complex emission and implement correct semantics forJohn McCall
assignment to volatiles in C. This in effect reverts some of mjs's work in and around r72572. Basically, the C++ standard is quite clear, except that it lies about volatile behavior approximating C's, whereas the C standard is almost actively misleading. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119344 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13Block API patch to do copy ctor of copied-in cxx objects inFariborz Jahanian
copy helper function and dtor of copied cxx objects in dispose helper functions. __block variables TBD next. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119011 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06Simplify the logic for emitting guard variables for template staticJohn McCall
data members by delaying the emission of the initializer until after linkage and visibility have been set on the global. Also, don't emit a guard unless the variable actually ends up with vague linkage, and don't use thread-safe statics in any case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118336 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-27Restore r117403 (fixing IR gen for bool atomics), this time being less John McCall
aggressive about the form we expect bools to be in. I don't really have time to fix all the sources right now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-27Revert r117403 as it caused PR8480.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117456 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Extract procedures to do scalar-to-memory and memory-to-scalar conversionsJohn McCall
in IR gen, and use those to fix a correctness issue with bool atomic intrinsics. rdar://problem/8461234 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117403 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Factor out the code for emitting code to load vtable pointer membersDan Gohman
so that it's done in one place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117386 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Fix Whitespace.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116798 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15Death to blocks, or at least the word "block" in one particular obnoxiouslyJohn McCall
ambiguous context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116567 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Experimental TBAA support.Dan Gohman
This enables metadata generation by default, however the TBAA pass in the optimizer is still disabled for now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Eliminate usage of ObjCSuperExpr used forFariborz Jahanian
'super' as receiver of property or a setter/getter methods. //rdar: //8525788 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-09Add target implementations for the X86 builtins:Bill Wendling
__builtin_ia32_vec_init_v8qi __builtin_ia32_vec_init_v4hi __builtin_ia32_vec_init_v2si They are lowered to bitcasts. (These are all ready tested by the gcc testsuite.) <rdar://problem/8529957> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-09Permit constant evaluation of const floating-point variables withJohn McCall
constant initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116138 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-28Accidentally committed some temporary changes on my branch when reverting ↵Bill Wendling
patches. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114936 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-28Temporarily revert 114929 114925 114924 114921. It looked like they (or at leastBill Wendling
one of them) was causing a series of failures: http://google1.osuosl.org:8011/builders/clang-x86_64-darwin10-selfhost/builds/4518 svn merge -c -114929 https://llvm.org/svn/llvm-project/cfe/trunk --- Reverse-merging r114929 into '.': U include/clang/Sema/Sema.h U include/clang/AST/DeclCXX.h U lib/Sema/SemaDeclCXX.cpp U lib/Sema/SemaTemplateInstantiateDecl.cpp U lib/Sema/SemaDecl.cpp U lib/Sema/SemaTemplateInstantiate.cpp U lib/AST/DeclCXX.cpp svn merge -c -114925 https://llvm.org/svn/llvm-project/cfe/trunk --- Reverse-merging r114925 into '.': G include/clang/AST/DeclCXX.h G lib/Sema/SemaDeclCXX.cpp G lib/AST/DeclCXX.cpp svn merge -c -114924 https://llvm.org/svn/llvm-project/cfe/trunk --- Reverse-merging r114924 into '.': G include/clang/AST/DeclCXX.h G lib/Sema/SemaDeclCXX.cpp G lib/Sema/SemaDecl.cpp G lib/AST/DeclCXX.cpp U lib/AST/ASTContext.cpp svn merge -c -114921 https://llvm.org/svn/llvm-project/cfe/trunk --- Reverse-merging r114921 into '.': G include/clang/AST/DeclCXX.h G lib/Sema/SemaDeclCXX.cpp G lib/Sema/SemaDecl.cpp G lib/AST/DeclCXX.cpp git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114933 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-24Patch implements passing arrays to functions expectingFariborz Jahanian
vla. Implements pr7827. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21IRgen for gnu extension's conditional lvalue expressionFariborz Jahanian
with missing LHS. radar 8453812. Executable test is checked into llvm test suite. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114457 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-20Implements in IRgen gnu extensions missing LHS forFariborz Jahanian
complex conditionals. Radar 8453812. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-18Adjust a fixup's starting branch if it's being resolved becauseJohn McCall
it reached the outermost scope and it hasn't yet been forwarded to a cleanup. Fixed PR8175. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114259 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-17Patch to add IRgen support for Gnu's conditional operatorFariborz Jahanian
extension when missing LHS. This patch covers scalar conditionals only. Others are wip. (pr7726, radar 8353567). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114182 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-17When emitting a new-expression inside a conditional expression,John McCall
the cleanup might not be dominated by the allocation code. In this case, we have to store aside all the delete arguments in case we need them later. There's room for optimization here in cases where we end up not actually needing the cleanup in different branches (or being able to pop it after the initialization code). Also make sure we only call this operator delete along the path where we actually allocated something. Fixes rdar://problem/8439196. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16Patch to move RequiresGCollection bit toFariborz Jahanian
AggValueSlot slot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15one piece of code is responsible for the lifetime of every aggregateJohn McCall
slot. The easiest way to do that was to bundle up the information we care about for aggregate slots into a new structure which demands that its creators at least consider the question. I could probably be convinced that the ObjC 'needs GC' bit should be rolled into this structure. Implement generalized copy elision. The main obstacle here is that IR-generation must be much more careful about making sure that exactly git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14Implement the EH cleanup to call 'operator delete' if a new-expression throwsJohn McCall
(but not if destructors associated with the full-expression throw). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113836 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14Fix VLA miscompilation.Argyrios Kyrtzidis
llvm.stacksave/llvm.stackrestore wasn't emitted for VLAs in inner scopes. Fixes r8403108. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113822 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-08Implement ARM static local initialization guards, which are more compact thanJohn McCall
Itanium guards and use a slightly different compiled-in API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113330 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02Abstract IR generation of array cookies into the C++ ABI class andJohn McCall
implement ARM array cookies. Also fix a few unfortunate bugs: - throwing dtors in deletes prevented the allocation from being deleted - adding the cookie to the new[] size was not being considered for overflow (and, more seriously, was screwing up the earlier checks) - deleting an array via a pointer to array of class type was not causing any destructors to be run and was passing the unadjusted pointer to the deallocator - lots of address-space problems, in case anyone wants to support free store in a variant address space :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112814 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Teach IR generation to return 'this' from constructors and destructorsJohn McCall
under the ARM ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112588 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Set the alignment correctly when creating LValue for a decls.Daniel Dunbar
- Fixes PR5598. - Review appreciated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21CodeGenFunction: Eliminate unused MakeQualifiers() function.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111725 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen/CGValue: Give MakeAddrLValue() an alignment argument, and eliminate ↵Daniel Dunbar
old form of MakeAddr(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111723 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Eliminate EmitPredefinedFunctionName(), it doesn't need to be ↵Daniel Dunbar
factored out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111715 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Add an LValue::MakeAddr variant which takes a type and uses that to buildDaniel Dunbar
the qualifiers. Also, add CodeGenFunction::MakeAddrLValue() helper function which passes in the ASTContext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111714 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Change Emit{Load,Store}OfScalar to take a required Alignment argument andDaniel Dunbar
update callers as best I can. - This is a work in progress, our alignment handling is very horrible / sketchy -- I am just aiming for monotonic improvement. - Serious review appreciated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111707 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14More cleanup enabling.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111070 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Sketch out a framework for delaying the activation of a cleanup.John McCall
Not yet complete or used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111044 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10Simplify code and add comments, in code that generate debug info for ↵Devang Patel
constant integer globals, based on Chris's feedback. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110694 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10Even if a constant's evaluated value is used, emit debug info for the ↵Devang Patel
constant variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110660 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Store inheritance paths after CastExprs instead of inside them.John McCall
This takes some trickery since CastExpr has subclasses (and indeed, is abstract). Also, smoosh the CastKind into the bitfield from Expr. Drops two words of storage from Expr in the common case of expressions which don't need inheritance paths. Avoids a separate allocation and another word of overhead in cases needing inheritance paths. Also has the advantage of not leaking memory, since destructors for AST nodes are never run. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110507 91177308-0d34-0410-b5e6-96231b3b80d8
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