Commit Graph

31 Commits

Author SHA1 Message Date
Chris Lattner 0f398c4472 remove uses of QualType::getCanonicalType() from codegen for PR2189
llvm-svn: 54107
2008-07-26 22:37:01 +00:00
Chris Lattner 7e80097f6e implement codegen support for labels at the end of stmtexprs.
llvm-svn: 54100
2008-07-26 20:23:23 +00:00
Chris Lattner 6284378fcd minor tidying, no functionality change.
llvm-svn: 54099
2008-07-26 20:15:14 +00:00
Nate Begeman fe79ca2ab9 Generate vector compares in codegen
llvm-svn: 54048
2008-07-25 20:16:05 +00:00
Chris Lattner d258325c2b Fix a codegen crash on:
int foo(void) {
  float x[2];
  return x;
}

rdar://6093986

llvm-svn: 53946
2008-07-23 06:31:27 +00:00
Daniel Dunbar a2fbefc159 Add note to check what __alignof__ a function type should be.
llvm-svn: 53928
2008-07-22 19:44:18 +00:00
Daniel Dunbar ee8bbb3ccc Prevent codegen crash on sizeof(<function type>), a gcc extension.
llvm-svn: 53899
2008-07-22 01:35:47 +00:00
Chris Lattner 9a8d1d9e56 Make a few related changes:
1) add a new ASTContext::getFloatTypeSemantics method.
2) Use it from SemaExpr.cpp, CodeGenTypes.cpp and other places.
3) Change the TargetInfo.h get*Format methods to return their 
   fltSemantics byref instead of by pointer.
4) Change CodeGenFunction::EmitBuiltinExpr to allow builtins which
   sometimes expand specially and othertimes fall back to libm.
5) Add support for __builtin_nan("") to codegen, cases that don't pass
   in an empty string are currently lowered to libm calls.
6) Fix codegen of __builtin_infl.

llvm-svn: 52914
2008-06-30 18:32:54 +00:00
Chris Lattner 6cfec78e48 avoid a lot of unneeded selector processing work by passing around
selectors instead of Value*'s.

llvm-svn: 52760
2008-06-26 04:42:20 +00:00
Ted Kremenek 08e171183f This patch is motivated by numerous strict-aliasing warnings when compiling
clang as a Release build.

The big change is that all AST nodes (subclasses of Stmt) whose children are
Expr* store their children as Stmt* or arrays of Stmt*. This is to remove
strict-aliasing warnings when using StmtIterator. None of the interfaces of any
of the classes have changed (except those with arg_iterators, see below), as the
accessor methods introduce the needed casts (via cast<>). While this extra
casting may seem cumbersome, it actually adds some important sanity checks
throughout the codebase, as clients using StmtIterator can potentially overwrite
children that are expected to be Expr* with Stmt* (that aren't Expr*). The casts
provide extra sanity checks that are operational in debug builds to catch
invariant violations such as these.

For classes that have arg_iterators (e.g., CallExpr), the definition of
arg_iterator has been replaced. Instead of it being Expr**, it is an actual
class (called ExprIterator) that wraps a Stmt**, and provides the necessary
operators for iteration. The nice thing about this class is that it also uses
cast<> to type-checking, which introduces extra sanity checks throughout the
codebase that are useful for debugging.

A few of the CodeGen functions that use arg_iterator (especially from
OverloadExpr) have been modified to take begin and end iterators instead of a
base Expr** and the number of arguments. This matches more with the abstraction
of iteration. This still needs to be cleaned up a little bit, as clients expect
that ExprIterator is a RandomAccessIterator (which we may or may not wish to
allow for efficiency of representation).

This is a fairly large patch. It passes the tests (except CodeGen/bitfield.c,
which was already broken) on both a Debug and Release build, but it should
obviously be reviewed.

llvm-svn: 52378
2008-06-17 02:43:46 +00:00
Nuno Lopes 7bd6e58ddc fix crash when codegening 'cond ? lhs : call-to-void-func()'
llvm-svn: 51958
2008-06-04 19:15:45 +00:00
Anton Korobeynikov 1200aca763 Support for code generation of Objective-C top-level language constructs.
Implemented by David Chisnall!

llvm-svn: 51835
2008-06-01 14:13:53 +00:00
Eli Friedman 3c28524632 Fix an extremely subtle bug with pointer comparisons: they have to be
unsigned because it's possible (at least in theory) to have
have both positive and negative pointers pointing to the same object.

llvm-svn: 51681
2008-05-29 15:09:15 +00:00
Eli Friedman 292e98cc18 Fix for PR2001. I'm not really fond of it, but it is correct (unless
someone tries to make a bitfield volatile?).

Not sure how to write a test; any suggestions?

llvm-svn: 51558
2008-05-25 14:13:57 +00:00
Eli Friedman d5a4838e3d Backout of codegen-based fix to PR2334; this has been fixed differently
at the Sema layer.

llvm-svn: 51203
2008-05-16 20:38:39 +00:00
Eli Friedman cb92a3f03b Patch for PR2334, and a similar ObjC bug.
llvm-svn: 51193
2008-05-16 17:37:11 +00:00
Eli Friedman a1b4ed8003 Implementation of __builtin_shufflevector, a portable builtin capable of
expressing the full flexibility of the LLVM shufflevector instruction.  
The expected immediate usage is in *mmintrin.h, so that they don't 
depend on the mess of gcc-inherited (and not completely implemented)
shuffle builtins.

llvm-svn: 51113
2008-05-14 19:38:39 +00:00
Eli Friedman 9fd8b68568 Add codegen support for block-level compound literals.
llvm-svn: 51081
2008-05-13 23:18:27 +00:00
Chris Lattner ff2367c0c9 implement a fixme, add support for ++/-- on long double.
llvm-svn: 49980
2008-04-20 00:50:39 +00:00
Chris Lattner 1886e71e47 use simplified ConstantFP:get method.
llvm-svn: 49979
2008-04-20 00:45:53 +00:00
Nate Begeman ce4d7fce6b OCUVector -> ExtVector, shorthand for extended vector, per feedback from Chris.
llvm-svn: 49942
2008-04-18 23:10:10 +00:00
Chris Lattner 61705c1a6e update to follow mainline llvm API change.
llvm-svn: 49607
2008-04-13 07:32:11 +00:00
Chris Lattner aa9c7aed0f Add support for C++ default arguments, and rework Parse-Sema
interaction for function parameters, fixing PR2046.

Patch by Doug Gregor!

llvm-svn: 49369
2008-04-08 04:40:51 +00:00
Gabor Greif d36afd7d65 tracking API changes arising from r49277
llvm-svn: 49279
2008-04-06 20:42:52 +00:00
Chris Lattner f3bc75afcf Since isComplexType() no longer returns true for _Complex integers, the code
generator needs to call isAnyComplexType().  This fixes PR1960.

llvm-svn: 49220
2008-04-04 16:54:41 +00:00
Chris Lattner 5506f8cf4c Codegen assignment to self correctly, patch by David Chisnall!
llvm-svn: 49201
2008-04-04 04:07:35 +00:00
Chris Lattner db5f1fa3d8 add a common base class "PointerLikeType" for PointerType and ReferenceType,
allowing them to be treated the same in some contexts.  A suggestion for a
better name is welcome :)

llvm-svn: 49100
2008-04-02 17:35:06 +00:00
Chris Lattner c00c35a857 some cleanups on top of David's patch. There are still two
remaining open issues I've communicated to him:

1) self can be assigned to, and his patch didn't handle it correctly.
2) CollectObjCIvarTypes is N^2 (because each subclass reprocesses
   all parent class ivars) and flattens classes.  If A derives from B, 
   and both have an int, I'd expect to get { {i32}, i32}, not { i32, i32}.

David, please review.

llvm-svn: 48970
2008-03-30 23:25:33 +00:00
Chris Lattner 4bd5596d08 Add initial support for objc codegen for methods, ivars, and the
etoile runtime, patch by David Chisnall!

llvm-svn: 48969
2008-03-30 23:03:07 +00:00
Chris Lattner 3e593cdb98 simplify the clang codegen by using the new Builder.CreateStructGEP method.
llvm-svn: 48534
2008-03-19 05:19:41 +00:00
Chris Lattner 7a51313d8a Make a major restructuring of the clang tree: introduce a top-level
lib dir and move all the libraries into it.  This follows the main
llvm tree, and allows the libraries to be built in parallel.  The
top level now enforces that all the libs are built before Driver,
but we don't care what order the libs are built in.  This speeds
up parallel builds, particularly incremental ones.

llvm-svn: 48402
2008-03-15 23:59:48 +00:00