Commit Graph

167 Commits

Author SHA1 Message Date
Mike Stump 10bd7e1c5b __builtin_object_size refinements. When we run out of object, be sure
to clamp at 0 bytes left.  WIP.

llvm-svn: 85157
2009-10-26 21:38:39 +00:00
Mike Stump 99f11f769e Be sure to zero-extend. And refactor.
llvm-svn: 85140
2009-10-26 18:57:47 +00:00
Mike Stump 722cedfb0d __builtin_object_size refinements. WIP.
llvm-svn: 85136
2009-10-26 18:35:08 +00:00
Anders Carlsson de55f647ff Ignore No-op casts when evaluating lvalue expressions. Fixes PR5122.
llvm-svn: 83267
2009-10-03 16:30:22 +00:00
John McCall 8ccfcb51ee Refactor the representation of qualifiers to bring ExtQualType out of the
Type hierarchy.  Demote 'volatile' to extended-qualifier status.  Audit our
use of qualifiers and fix a few places that weren't dealing with qualifiers
quite right;  many more remain.

llvm-svn: 82705
2009-09-24 19:53:00 +00:00
Chris Lattner d545ad1301 implement support for __builtin_eh_return_data_regno on x86-32 and x86-64.
This implements PR5034 and rdar://6836445.

llvm-svn: 82614
2009-09-23 06:06:36 +00:00
John McCall 9dd450bb78 Change all the Type::getAsFoo() methods to specializations of Type::getAs().
Several of the existing methods were identical to their respective
specializations, and so have been removed entirely.  Several more 'leaf'
optimizations were introduced.

The getAsFoo() methods which imposed extra conditions, like
getAsObjCInterfacePointerType(), have been left in place.

llvm-svn: 82501
2009-09-21 23:43:11 +00:00
Anders Carlsson 04c3bf4fab Codegen support for nullptr from C++0x.
llvm-svn: 81835
2009-09-15 04:39:46 +00:00
Eli Friedman 7d45c4884a Add utility to evaluate lvalues which are an offset relative to a stack
location.  Patch by Enea Zaffanella.

llvm-svn: 81672
2009-09-13 10:17:44 +00:00
Mike Stump 11289f4280 Remove tabs, and whitespace cleanups.
llvm-svn: 81346
2009-09-09 15:08:12 +00:00
Eli Friedman 9ab0319b2b Get rid of mostly-unused, buggy method.
llvm-svn: 80432
2009-08-29 19:09:59 +00:00
Ted Kremenek c23c7e6a51 Change uses of:
Type::getAsReferenceType() -> Type::getAs<ReferenceType>()
  Type::getAsRecordType() -> Type::getAs<RecordType>()
  Type::getAsPointerType() -> Type::getAs<PointerType>()
  Type::getAsBlockPointerType() -> Type::getAs<BlockPointerType>()
  Type::getAsLValueReferenceType() -> Type::getAs<LValueReferenceType>()
  Type::getAsRValueReferenceType() -> Type::getAs<RValueReferenceType>()
  Type::getAsMemberPointerType() -> Type::getAs<MemberPointerType>()
  Type::getAsReferenceType() -> Type::getAs<ReferenceType>()
  Type::getAsTagType() -> Type::getAs<TagType>()
  
And remove Type::getAsReferenceType(), etc.

This change is similar to one I made a couple weeks ago, but that was partly
reverted pending some additional design discussion. With Doug's pending smart
pointer changes for Types, it seemed natural to take this approach.

llvm-svn: 77510
2009-07-29 21:53:49 +00:00
Douglas Gregor 79f83eda84 This patch fixes the implementations of the __has_trivial_destructor
and __has_trivial_constructor builtin pseudo-functions and
additionally implements __has_trivial_copy and __has_trivial_assign,
from John McCall!

llvm-svn: 76916
2009-07-23 23:49:00 +00:00
Anders Carlsson 15b73deeea Revert r75641.
llvm-svn: 76327
2009-07-18 19:43:29 +00:00
Ted Kremenek 8a286fbdb9 Per offline discussion with Steve Naroff, add back Type::getAsXXXType() methods
until Doug Gregor's Type smart pointer code lands (or more discussion occurs).
These methods just call the new Type::getAs<XXX> methods, so we still have
reduced implementation redundancy. Having explicit getAsXXXType() methods makes
it easier to set breakpoints in the debugger.

llvm-svn: 76193
2009-07-17 17:50:17 +00:00
Ted Kremenek b825c0ddc5 Replaced Type::getAsLValueReferenceType(), Type::getAsRValueReferenceType(), Type::getAsMemberPointerType(), Type::getAsTagType(), and Type::getAsRecordType() with their Type::getAs<XXX> equivalents.
llvm-svn: 76139
2009-07-17 01:20:38 +00:00
Ted Kremenek e3fb4b6524 Add member template 'Type::getAs<T>', which converts a Type* to a respective T*.
This method is intended to eventually replace the individual
Type::getAsXXXType<> methods.

The motivation behind this change is twofold:

1) Reduce redundant implementations of Type::getAsXXXType() methods. Most of
them are basically copy-and-paste.

2) By centralizing the implementation of the getAs<Type> logic we can more
smoothly move over to Doug Gregor's proposed canonical type smart pointer
scheme.

Along with this patch:

a) Removed 'Type::getAsPointerType()'; now clients use getAs<PointerType>.
b) Removed 'Type::getAsBlockPointerTypE()'; now clients use getAs<BlockPointerType>.

llvm-svn: 76098
2009-07-16 19:58:26 +00:00
Anders Carlsson 466fd0a16d Rename RecordLayout.h to ASTRecordLayout.h
llvm-svn: 75641
2009-07-14 17:29:11 +00:00
Steve Naroff 7cae42b07a This patch includes a conceptually simple, but very intrusive/pervasive change.
The idea is to segregate Objective-C "object" pointers from general C pointers (utilizing the recently added ObjCObjectPointerType). The fun starts in Sema::GetTypeForDeclarator(), where "SomeInterface *" is now represented by a single AST node (rather than a PointerType whose Pointee is an ObjCInterfaceType). Since a significant amount of code assumed ObjC object pointers where based on C pointers/structs, this patch is very tedious. It should also explain why it is hard to accomplish this in smaller, self-contained patches.

This patch does most of the "heavy lifting" related to moving from PointerType->ObjCObjectPointerType. It doesn't include all potential "cleanups". The good news is additional cleanups can be done later (some are noted in the code). This patch is so large that I didn't want to include any changes that are purely aesthetic.

By making the ObjC types truly built-in, they are much easier to work with (and require fewer "hacks"). For example, there is no need for ASTContext::isObjCIdStructType() or ASTContext::isObjCClassStructType()! We believe this change (and the follow-up cleanups) will pay dividends over time. 

Given the amount of code change, I do expect some fallout from this change (though it does pass all of the clang tests). If you notice any problems, please let us know asap! Thanks.

llvm-svn: 75314
2009-07-10 23:34:53 +00:00
Daniel Dunbar df4a58edd8 Fix thinko in r74506, test condition for floats was inverted.
- Refactored slightly to make control flow more obvious.

llvm-svn: 74637
2009-07-01 20:37:45 +00:00
Nate Begeman ef1a7fa89d Implement Eli's feedback for vecto constant expressions;
For ExtVectorType, initializer is splatted to all elements.
For VectorType, initializer is bitcast to vector type.

Verified that for VectorType, output is identical to gcc.

llvm-svn: 74600
2009-07-01 07:50:47 +00:00
Argyrios Kyrtzidis cfbfe78e9e De-ASTContext-ify DeclContext.
Remove ASTContext parameter from DeclContext's methods. This change cascaded down to other Decl's methods and changes to call sites started "escalating".
Timings using pre-tokenized "cocoa.h" showed only a ~1% increase in time run between and after this commit.

llvm-svn: 74506
2009-06-30 02:36:12 +00:00
Nate Begeman 2ffd384441 OpenCL 1.0 Support:
Add support for scalar to vector and partially initialized vector constant initializers. 

llvm-svn: 74299
2009-06-26 18:22:18 +00:00
Eli Friedman 334046a134 PR4351: Add constant evaluation for constructs like "foo == NULL", where
foo has a constant address.

llvm-svn: 73321
2009-06-14 02:17:33 +00:00
Chris Lattner 15ba94987a Sink the BuiltinInfo object from ASTContext into the
preprocessor and initialize it early in clang-cc.  This
ensures that __has_builtin works in all modes, not just
when ASTContext is around.

llvm-svn: 73319
2009-06-14 01:54:56 +00:00
Eli Friedman fa90b154ca Minor simplification.
llvm-svn: 72887
2009-06-04 20:23:20 +00:00
Eli Friedman 4a4fefcd29 PR4326: Handle constant evaluation for void* pointer subtraction
correctly.

llvm-svn: 72886
2009-06-04 20:04:03 +00:00
Eli Friedman f7f9f68722 Some small fixes for fields of reference type.
llvm-svn: 72636
2009-05-30 21:09:44 +00:00
Mike Stump b807c9c622 Cleqnup ideas from Chris, thanks.
llvm-svn: 72621
2009-05-30 14:43:18 +00:00
Mike Stump 2346cd2a10 Improve __builtin_nanf support; we now can deal with them as constants.
llvm-svn: 72607
2009-05-30 03:56:50 +00:00
Eli Friedman 751aa72b72 Fix up constant expression handling to deal with the address
of a reference correctly.

llvm-svn: 72463
2009-05-27 06:04:58 +00:00
Douglas Gregor 31cf12c0a6 When evaluating a VarDecl as a constant or determining whether it is
an integral constant expression, maintain a cache of the value and the
is-an-ICE flag within the VarDecl itself. This eliminates
exponential-time behavior of the Fibonacci template metaprogram.

llvm-svn: 72428
2009-05-26 18:54:04 +00:00
Sebastian Redl 576fd424df Implement C++0x nullptr.
llvm-svn: 71405
2009-05-10 18:38:11 +00:00
Daniel Dunbar bc5a7a8894 Remove an unneeded special case.
llvm-svn: 70689
2009-05-03 10:35:52 +00:00
Douglas Gregor ef462e6bb0 Properly compute the alignment of typedefs that make use of the
"aligned" attribute. Previously, we were skipping over these
attributes when we jumped directly to the canonical type. Now,
ASTContext::getTypeInfo walks through typedefs and other
"non-canonical" types manually, looking for "aligned" attributes on
typedefs.

As part of this change, I moved the GNU-specific logic (such as
determining the alignment of void or of a function pointer) out of the
expression evaluator and into ASTContext::getTypeInfo.

llvm-svn: 70497
2009-04-30 17:32:17 +00:00
Eli Friedman 8b171f6516 Minor simplification; also silences gcc warning.
llvm-svn: 70406
2009-04-29 20:29:43 +00:00
Eli Friedman a38da57cd6 PR4097: add logic to Evaluate to handle pointer equality comparisons.
llvm-svn: 70317
2009-04-28 19:17:36 +00:00
Eli Friedman d3a5a9d7fa Add handling for complex->int, int->complex float, and float->complex
int.  Note that constant int->complex float and float->complex int casts
were being miscompiled.

llvm-svn: 69821
2009-04-22 19:23:09 +00:00
Daniel Dunbar 93c1914de3 Use an ASTRecordLayout to compute the sizeof an interface, not
addRecordToClass.
 - Among other things, this fixes a crash when applying sizeof to an
   interface with synthesized ivars, although things still aren't
   "correct" here.

llvm-svn: 69675
2009-04-21 15:48:54 +00:00
Steve Naroff a0c32704e2 Fix <rdar://problem/6765383> clang-6: clang does not appear to support declaring a static Block 'const'.
llvm-svn: 69306
2009-04-16 19:02:57 +00:00
Anders Carlsson 43168129d0 Add Expr::EvaluateAsLValue which will (believe it or not) try to evaluate an Expr as an LValue.
llvm-svn: 68763
2009-04-10 04:54:13 +00:00
Douglas Gregor bcced4ec31 Propagate the ASTContext to various AST traversal and lookup functions.
No functionality change (really).

llvm-svn: 68726
2009-04-09 21:40:53 +00:00
Eli Friedman 29f80c343b Slight generalization for Evaluate with const variables.
llvm-svn: 68075
2009-03-30 23:39:01 +00:00
Eli Friedman 94c25c66b5 Fix PR3868 by making Evaluate handle cases like "(long)&a + 4".
llvm-svn: 67593
2009-03-24 01:14:50 +00:00
Eli Friedman 449fe54cff Minor Evaluate cleanup; add some boilerplate implementations to
Evaluate for __extension__ and __builtin_choose_expr.

llvm-svn: 67506
2009-03-23 04:56:01 +00:00
Eli Friedman 6400433980 Minor enhancements to Evaluate.
llvm-svn: 67503
2009-03-23 04:38:34 +00:00
Sebastian Redl 0f8b23f71f Almost complete implementation of rvalue references. One bug, and a few unclear areas. Maybe Doug can shed some light on some of the fixmes.
llvm-svn: 67059
2009-03-16 23:22:08 +00:00
Eli Friedman e0a5b8b11f Minor cleanup for choose expressions: add a helper that returns the
chosen sub-expression, rather than just evaluating the condition.

llvm-svn: 66018
2009-03-04 05:52:32 +00:00
Eli Friedman a1c7b6c5f6 Fix obvious shortcoming in the implementations of Evaluate for
integer __real__ and __imag__.  Not sure how I missed this.

llvm-svn: 65677
2009-02-28 03:59:05 +00:00
Eli Friedman 988a16b9b8 Change the AST generated for offsetof a bit so that it looks like a
normal expression, and change Evaluate and IRGen to evaluate it like a 
normal expression.  This simplifies the code significantly, and fixes 
PR3396.

llvm-svn: 65622
2009-02-27 06:44:11 +00:00