77 Commits

Author SHA1 Message Date
Anders Carlsson
66c384ac2e More cleanup stack work, PopCleanupBlock now returns a struct with the switch block and end block.
llvm-svn: 64072
2009-02-08 07:46:24 +00:00
Anders Carlsson
ae91d9b140 Split some functions up
llvm-svn: 64069
2009-02-08 03:55:35 +00:00
Anders Carlsson
a586ad7f85 CleanupScope needs to push the cleanup block in its destructor
llvm-svn: 64068
2009-02-08 03:22:36 +00:00
Anders Carlsson
3c21dd5a80 Implement support for branch fixups.
llvm-svn: 64064
2009-02-08 01:23:05 +00:00
Anders Carlsson
7d70fd27a4 More cleanup stack work.
llvm-svn: 64059
2009-02-08 00:50:42 +00:00
Anders Carlsson
fbfb5e6530 When emitting blocks, keep track of which cleanup scope they have. Minor fixes and cleanup.
llvm-svn: 64053
2009-02-08 00:16:35 +00:00
Anders Carlsson
be0f76a712 Add support for emitting cleanup blocks. Make EmitCompoundStatement emit cleanup blocks if necessary
llvm-svn: 64051
2009-02-07 23:50:39 +00:00
Anders Carlsson
15cb75a20c Add plumbing for the cleanup stack.
llvm-svn: 64043
2009-02-07 22:53:43 +00:00
Mike Stump
1d91dd98ad Fixup goto codegen in and around VLAs.
llvm-svn: 64014
2009-02-07 12:52:26 +00:00
Anders Carlsson
31f8649f83 Follow Eli's advice and store the VLA size with the native size_t type. Fixes PR3491.
llvm-svn: 63879
2009-02-05 19:43:10 +00:00
Daniel Dunbar
ee3da87ce7 Add CodeGenFunction::ConvertTypeForMem forwarding function.
llvm-svn: 63678
2009-02-03 23:03:55 +00:00
Daniel Dunbar
bf8c24ad89 Thread CGFunctionInfo construction through CodeGenTypes.
- Inefficient & leaks memory currently, will be cleaned up subsequently.

llvm-svn: 63567
2009-02-02 23:23:47 +00:00
Daniel Dunbar
d931a87f90 More ABI API cleanup.
- Lift CGFunctionInfo creation above ReturnTypeUsesSret and
   EmitFunction{Epi,Pro}log.

llvm-svn: 63553
2009-02-02 22:03:45 +00:00
Daniel Dunbar
fd346a3644 Pull EmitReturnBlock out of FinishFunction and catch unified return
case correctly.

llvm-svn: 63068
2009-01-26 23:27:52 +00:00
Daniel Dunbar
336dbba387 Skip emission of final return block if possible (e.g., functions with
a unified return).

llvm-svn: 63038
2009-01-26 21:25:20 +00:00
Eli Friedman
ddea0ade30 Slight cleanup, and fix for va_arg on architectures where va_list is a
struct.

llvm-svn: 62585
2009-01-20 17:46:04 +00:00
Daniel Dunbar
9b21e63251 Block pointer types are not aggregate types.
llvm-svn: 61973
2009-01-09 02:44:18 +00:00
Anders Carlsson
5d985f5f16 Handle typedefs to VLAs (Emit the size expr when we encounter the typedef
llvm-svn: 61290
2008-12-20 21:51:53 +00:00
Anders Carlsson
c20879a6e4 Make sure to generate code for arguments that have a variably modified type.
llvm-svn: 61288
2008-12-20 21:28:43 +00:00
Anders Carlsson
8a01b79274 Change EmitVLASize to take a QualType that must be a variably modified type.
Emit the size even if the declared type is a variably modified type. This lets us handle

void f(int n) {
  int (*a)[n];
  
  printf("size: %d\n", sizeof(*a));
}

llvm-svn: 61285
2008-12-20 20:46:34 +00:00
Anders Carlsson
e388a5bf44 Split up emitting of VLA sizes and getting the size of a VLA.
llvm-svn: 61284
2008-12-20 20:27:15 +00:00
Anders Carlsson
ccbe9200f9 Add map of VLA types and their sizes
llvm-svn: 60939
2008-12-12 07:19:02 +00:00
Anders Carlsson
8628645e94 Change more code over to using the new Expr::Evaluate
llvm-svn: 60324
2008-12-01 02:46:24 +00:00
Chris Lattner
86d7d91366 Rename NamedDecl::getIdentifierName() to ::getNameAsCString() and make it
assert if the name is not an identifier.  Update callers to do the right
thing and avoid this method in unsafe cases.  This also fixes an objc
warning that was missing a space, and migrates a couple more to taking
IdentifierInfo and QualTypes instead of std::strings.

llvm-svn: 59936
2008-11-24 03:54:41 +00:00
Anders Carlsson
4046e65b27 An expression is not foldable if it can't be fully evaluated. Fixes PR3060
llvm-svn: 59887
2008-11-22 22:32:07 +00:00
Douglas Gregor
77324f3854 Introduction the DeclarationName class, as a single, general method of
representing the names of declarations in the C family of
languages. DeclarationName is used in NamedDecl to store the name of
the declaration (naturally), and ObjCMethodDecl is now a NamedDecl.

llvm-svn: 59441
2008-11-17 14:58:09 +00:00
Chris Lattner
67d7b9204c rename Expr::tryEvaluate to Expr::Evaluate.
llvm-svn: 59426
2008-11-16 21:24:15 +00:00
Daniel Dunbar
a612e79be4 Normalize many BasicBlock names.
- Use dotted notation for blocks related to a particular statement
   type.
 - Use .end for landing pads.

No functionality change in NDEBUG mode. :)

llvm-svn: 59210
2008-11-13 01:38:36 +00:00
Daniel Dunbar
f32443cdcd Quick fix for crash in IRgen when we can tryEvaluate a condition to
something that is not an int.

 - Ignore these cases for now, added FIXME that we should also boolize
   them.

llvm-svn: 59184
2008-11-12 22:37:10 +00:00
Daniel Dunbar
bf3c22e51d Handle ?: in EmitBranchOnBoolExpr.
llvm-svn: 59129
2008-11-12 10:30:32 +00:00
Chris Lattner
d95377341b Handle Unary ! in EmitBranchOnBoolExpr, so that we can efficiently
codegen stuff like "if (!(X && Y))"

llvm-svn: 59115
2008-11-12 08:13:36 +00:00
Chris Lattner
cd439299b0 Move EmitBranchOnBoolExpr and ConstantFoldsToSimpleInteger to
CodeGenFunction.cpp.  Change VisitConditionalOperator to use
constant fold instead of codegen'ing a constant conditional.

Change ForStmt to use EmitBranchOnBoolExpr, this shrinks
expr.c very slightly to 40239 lines.

llvm-svn: 59113
2008-11-12 08:04:58 +00:00
Daniel Dunbar
5c7e3935f1 Rework IRgen invariant w.r.t. current insert point.
- EmitStmt is no longer required to finish with a current insertion
   point defined (i.e. it does not need to make dummy
   blocks). Instead, it can clear the insertion point in the builder
   which indicates that the current insertion point is unreachable.
 - CodeGenFunction provides HaveInsertPoint and EnsureInsertPoint
   which respectively test if there is an insert point and ensure an
   insertion point exists (by making a dummy block).
 - Clearly mark functions in CodeGenFunction which can be called with
   no insertion point defined. Currently this is a limited set, and
   EmitStmt simply EnsureInsertPoint()s before emitting subsequent IR.

Remove EmitDummyBlock, which is no longer needed. Clients who haven't
already cleared the insertion point (typically via EmitBranch) can do
so by hand.

Remove isDummyBlock, which has effectively been renamed to
HaveInsertPoint.

The main thrust of this change is that we no longer have create dummy
blocks just to destroy them a short time later in EmitBlock in the
common case that there is no unreachable code following something like
a goto. 

Additionally, this means that we are not using the hokey condition in
isDummyBlock that a block without a name is a dummy block. Guess how
well that works when we never emit block names!

llvm-svn: 59089
2008-11-11 23:11:34 +00:00
Daniel Dunbar
fab3f936dd Emit debug region end in unified return block.
llvm-svn: 59081
2008-11-11 20:59:54 +00:00
Chris Lattner
5b1964b5f9 short circuit && and || when possible. This substantially reduces
the size of the -O0 output on some cases.  For example, on expr.c from
176.gcc, it shrinks the .ll file from 43164 to 42835 lines, and removed
references to two external symbols.

llvm-svn: 59034
2008-11-11 07:41:27 +00:00
Daniel Dunbar
05e629aec6 Remove CodeGenFunction::StartBlock.
- Was confusing and only used in one small part of the code.

llvm-svn: 59020
2008-11-11 04:12:31 +00:00
Daniel Dunbar
75283ff38a Centralize basic block creation in CodeGenFunction::createBasicBlock.
- No functionality change.

llvm-svn: 59017
2008-11-11 02:29:29 +00:00
Anders Carlsson
13abd7e98b Implement lowering of va_arg in clang directly. (This is 32-bit X86 only for now).
llvm-svn: 58681
2008-11-04 05:30:00 +00:00
Daniel Dunbar
5b06d9f202 Don't run the verifier as part of IRgen, this is now down (per module)
in the driver (this means we no longer run the verifier per function, however).

llvm-svn: 58307
2008-10-28 00:36:04 +00:00
Daniel Dunbar
354d278518 Debug info bug fix, function start wasn't getting generated correctly
for Obj-C methods.

llvm-svn: 57769
2008-10-18 18:22:23 +00:00
Daniel Dunbar
b9fd902fdc Change CGDebugInfo::setLocation to just ignore invalid locations. This
simplifies clients.

Also, add assert that RegionStack is empty when the CGDebugInfo is
destroyed.

llvm-svn: 57684
2008-10-17 16:15:48 +00:00
Daniel Dunbar
274ff37583 Simplify code to emit the unified return block and move it to the end
of the function.

llvm-svn: 56752
2008-09-27 07:15:59 +00:00
Daniel Dunbar
d9d1f5f522 Print current function on verification failures.
llvm-svn: 56291
2008-09-17 21:13:22 +00:00
Anders Carlsson
9396a89899 Make sure to store the exception in the catch parameter.
llvm-svn: 56102
2008-09-11 09:15:33 +00:00
Daniel Dunbar
613855c8af Move ABI specific code for functions / calls to CGCall.cpp:
- Factor out EmitFunction{Pro,Epi}log

llvm-svn: 56031
2008-09-09 23:27:19 +00:00
Daniel Dunbar
bc915f4025 Factor CodeGenFunction::StartFunction out of GenerateCode and
StartObjCMethod.

llvm-svn: 56030
2008-09-09 23:14:03 +00:00
Daniel Dunbar
54bb1933b1 Use a unified return block.
- For the time being this means our emitted code is somewhat worse,
   especially for aggregates. This will be fixed.

llvm-svn: 56013
2008-09-09 21:00:17 +00:00
Daniel Dunbar
f2cf6d16e6 Avoid superfluous errors regarding variable-length arrays (casts).
llvm-svn: 55759
2008-09-04 03:43:08 +00:00
Anders Carlsson
2e744e8aa6 Stub out CodeGenFunction::EmitObjCForCollectionStmt.
Add CodeGenFunction::EmitMemSetToZero and make AggExprEmitter::EmitAggregateClear use it.

llvm-svn: 55573
2008-08-30 19:51:14 +00:00
Daniel Dunbar
89654eef3a Objective-C @synthesize support.
- Only supports simple assignment and atomic semantics are ignored.
 - Not quite usable yet because the methods do not actually get added
   to the class metadata.
 - Added ObjCPropertyDecl::getSetterKind (one of Assign, Copy, Retain).
 - Rearrange CodeGenFunction so synthesis can reuse function prolog /
   epilog code.

llvm-svn: 55365
2008-08-26 08:29:31 +00:00