Anders Carlsson
e36a6b3e44
Correctly pass VTT parameters to constructors and destructors. The VTTs aren't yet used in the ctors/dtors, but that will follow.
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llvm-svn: 92409
2010-01-02 01:01:18 +00:00
Anders Carlsson
bfb3671b25
Pass the return value slot to all call exprs.
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llvm-svn: 92145
2009-12-24 21:13:40 +00:00
Anders Carlsson
1749083e2e
Fill in the return value slot in CGExprAgg::VisitCallExpr. This takes us halfway towards fixing PR5824.
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llvm-svn: 92142
2009-12-24 20:40:36 +00:00
Anders Carlsson
61a401caec
Pass ReturnValueSlot to EmitCall. No functionality change yet.
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llvm-svn: 92138
2009-12-24 19:25:24 +00:00
Anders Carlsson
0435ed5875
Add a ReturnValueSlot class. Change the argument order in EmitCall to match the other overload better.
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llvm-svn: 92136
2009-12-24 19:08:58 +00:00
Eli Friedman
70724ad2ff
Work in progress for setting the vtable pointers for all bases correctly in
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the constructor. This doesn't handle cases requiring the VTT at the moment,
and generates unnecessary stores, but I think it's essentially correct.
llvm-svn: 91731
2009-12-18 23:47:41 +00:00
Mike Stump
3f6f9febad
Implement additional undefined checks for additional loads and stores. WIP.
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llvm-svn: 91498
2009-12-16 02:57:00 +00:00
Mike Stump
e8c3b3eca4
Switch codegen for -fcatch-undefined-bahavior over to __builtin_trap
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instead of abort to improve codesize and codegen.
llvm-svn: 91374
2009-12-15 00:35:12 +00:00
Mike Stump
ba6a0c40c4
Add support for detecting undefined shift behavior. WIP.
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llvm-svn: 91341
2009-12-14 21:58:14 +00:00
Mike Stump
d954638f02
Implement runtime checks for undefined behavior. WIP.
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This implements a new flag -fcatch-undefined-behavior. The flag turns
on additional runtime checks for:
T a[I];
a[i] abort when i < 0 or i >= I.
Future stuff includes shifts by >= bitwidth amounts.
llvm-svn: 91198
2009-12-12 01:27:46 +00:00
Eli Friedman
d5bc94e2eb
Get rid of static variable.
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llvm-svn: 91041
2009-12-10 02:21:21 +00:00
Mike Stump
f5cbb08c4b
Ensure we only generate one terminate handler.
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llvm-svn: 90998
2009-12-10 00:02:42 +00:00
Mike Stump
102530719f
Add terminate handler to cleanups on exceptional edges.
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llvm-svn: 90996
2009-12-09 23:49:53 +00:00
Fariborz Jahanian
531c16f9fb
Code gen for ObjCIsaExpr AST used as lvalue.
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(fixes radar 7457534).
llvm-svn: 90995
2009-12-09 23:35:29 +00:00
Mike Stump
2b488873bf
Break out code for reuse. WIP.
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llvm-svn: 90991
2009-12-09 22:59:31 +00:00
Mike Stump
aff69af918
Add cleanups for exceptional edges. WIP.
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llvm-svn: 90940
2009-12-09 03:35:49 +00:00
Eli Friedman
bb5008a32a
Fix for PR5707: make sure implicit copy constructors initialize the vtable
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pointer.
llvm-svn: 90840
2009-12-08 06:46:18 +00:00
Mike Stump
1d849219a5
Add codegen support for exception specifications. WIP.
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llvm-svn: 90817
2009-12-07 23:38:24 +00:00
Chris Lattner
e99c110d06
implement rdar://7346691 by codegen'ing struct/array initializers
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to a memset or a memcpy from a global when possible.
llvm-svn: 90658
2009-12-05 08:22:11 +00:00
Mike Stump
bee78dd31b
Add support for function try blocks.
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llvm-svn: 90622
2009-12-04 23:26:17 +00:00
Eli Friedman
4b1942cb8b
Make functions returning a struct indirectly evaluate the returned struct
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directly into the sret pointer. This is an optimization in C, but is required
for correctness in C++ for classes with a non-trivial copy constructor.
llvm-svn: 90526
2009-12-04 02:43:40 +00:00
Eli Friedman
551fe84d0e
Minor cleanup.
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llvm-svn: 90411
2009-12-03 04:27:05 +00:00
Mike Stump
e2d4a2c3a8
Add support for thunking dtors. Oh why does this make my head hurt?
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llvm-svn: 90409
2009-12-03 03:47:56 +00:00
Mike Stump
33270211a0
More exception handling improvements... WIP.
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Highlights include:
Add a helper to generate __cxa_free_exception and _ZSt9terminatev.
Add a region to handle EH object deallocation for ctor failures for throw.
Add a terminate handler for __cxa_end_catch.
A framework for adding cleanup actions for the exceptional edges only.
llvm-svn: 90305
2009-12-02 07:41:41 +00:00
Mike Stump
e5311b0d79
Reflow comments and fix 80-col violation.
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llvm-svn: 90152
2009-11-30 20:08:49 +00:00
Anders Carlsson
2f87c4f1a5
Add a CovariantThunkAdjustment struct that represents the adjustments needed for a covariant thunk.
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llvm-svn: 89933
2009-11-26 03:09:37 +00:00
Anders Carlsson
c778540f9a
Add a ThunkAdjustment struct which holds a non-virtual and a virtual adjustment offset. Start using it. General cleanup in Mangle.cpp.
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llvm-svn: 89925
2009-11-26 02:32:05 +00:00
Anders Carlsson
82ba57c8f0
Add VTT parameter to base ctors/dtors with virtual bases. (They aren't used yet).
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llvm-svn: 89835
2009-11-25 03:15:49 +00:00
Douglas Gregor
7bab5ff8e7
Eliminate CXXConditionDeclExpr with extreme prejudice.
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All statements that involve conditions can now hold on to a separate
condition declaration (a VarDecl), and will use a DeclRefExpr
referring to that VarDecl for the condition expression. ForStmts now
have such a VarDecl (I'd missed those in previous commits).
Also, since this change reworks the Action interface for
if/while/switch/for, use FullExprArg for the full expressions in those
expressions, to ensure that we're emitting
Note that we are (still) not generating the right cleanups for
condition variables in for statements. That will be a follow-on
commit.
llvm-svn: 89817
2009-11-25 00:27:52 +00:00
Douglas Gregor
680f861d74
Clean up the AST for while loops and fix several problems with
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cleanups for while loops:
1) Make sure that we destroy the condition variable of a while statement each time through the loop for, e.g.,
while (shared_ptr<WorkInt> p = getWorkItem()) {
// ...
}
2) Make sure that we always enter a new cleanup scope for the body of the while loop, even when there is no compound expression, e.g.,
while (blah)
RAIIObject raii(blah+1);
llvm-svn: 89800
2009-11-24 21:15:44 +00:00
Anders Carlsson
3a202f601e
Handle cases where we're constructing an array of objects and the constructor has default arguments.
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llvm-svn: 89783
2009-11-24 18:43:52 +00:00
Douglas Gregor
965f450d42
Introduce cleanup scopes for "if" statements in two places:
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- Outside the "if", to ensure that we destroy the condition variable
at the end of the "if" statement rather than at the end of the
block containing the "if" statement.
- Inside the "then" and "else" branches, so that we emit then- or
else-local cleanups at the end of the corresponding block when the
block is not a compound statement.
To make adding these new cleanup scopes easier (and since
switch/do/while will all need the same treatment), added the
CleanupScope RAII object to introduce a new cleanup scope and make
sure it gets cleaned up.
llvm-svn: 89773
2009-11-24 16:43:22 +00:00
Douglas Gregor
48a409eb39
Rename CleanupScope -> DelayedCleanupBlock. No functionality change.
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llvm-svn: 89769
2009-11-24 16:21:10 +00:00
Anders Carlsson
8c793172c2
Handle base-to-derived casts. Will land test case shortly.
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llvm-svn: 89678
2009-11-23 17:57:54 +00:00
Anders Carlsson
0a66c26191
Fix lifetime of conditional temporaries. Patch by Victor Zverovich!
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llvm-svn: 89467
2009-11-20 17:27:56 +00:00
Eli Friedman
794290ca29
Add an assertion to catch bad calls to EmitCallArgs.
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llvm-svn: 89190
2009-11-18 03:42:04 +00:00
Eli Friedman
24f55430c8
Missing piece of r89173.
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llvm-svn: 89174
2009-11-18 00:57:03 +00:00
Anders Carlsson
cfd3012756
More const is always good.
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llvm-svn: 89033
2009-11-17 03:57:07 +00:00
Mike Stump
65511704f7
Implement most of dynamic_cast. WIP.
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llvm-svn: 88901
2009-11-16 06:50:58 +00:00
Mike Stump
c9b231c8d1
Implement typeid for class types.
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llvm-svn: 88843
2009-11-15 08:09:41 +00:00
Fariborz Jahanian
6814eaa2cc
Code gen for arrady delete operator. Fixes pr5472.
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llvm-svn: 88680
2009-11-13 19:27:47 +00:00
Daniel Dunbar
1b4441915a
Wherein the TargetInfo argument to Preprocessor is made 'const' and propogated.
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llvm-svn: 87087
2009-11-13 05:51:54 +00:00
Anders Carlsson
e828c36933
Add a special BuildVirtualCall that's going to be used for building calls to destructors. This is needed because when compiling:
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struct A {
virtual ~A();
};
void f(A* a) {
delete a;
}
A's deleting destructor should be called.
llvm-svn: 87083
2009-11-13 04:45:41 +00:00
Fariborz Jahanian
1254a0978c
This patch implements Code gen. for destruction of
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global array of objects.
llvm-svn: 86701
2009-11-10 19:24:06 +00:00
Mike Stump
d846d0825b
Add vtable caching to prevent multiple vtables for the same class from
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being generated.
Add the most derived vtable pointer to the VTT.
llvm-svn: 86671
2009-11-10 07:44:33 +00:00
Mike Stump
9f23a149cb
Be sure to clear out VCall when we clear out VCalls.
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Start implementing VTTs. WIP.
llvm-svn: 86650
2009-11-10 02:30:51 +00:00
Anders Carlsson
509850ebec
Change EmitPointerToDataMemberLValue to take a FieldDecl. No intended functionality change.
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llvm-svn: 86407
2009-11-07 22:00:15 +00:00
Chris Lattner
4f24225e8e
indirectbr seems to work! Rip out the old code.
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llvm-svn: 86256
2009-11-06 17:38:18 +00:00
Fariborz Jahanian
09cc10f9f8
This patch extends CleanupScope to support destruction
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of array objects on block exit. Patch is by Anders Calrsson.
llvm-svn: 86032
2009-11-04 17:57:40 +00:00
Mike Stump
53f9ded62b
Refine volatile handling, specifically, we must have the canonical
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type to look at the volatile specifier. I found these all from just
hand auditing the code.
llvm-svn: 85967
2009-11-03 23:25:48 +00:00