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231 Commits

Author SHA1 Message Date
John McCall 2de87f67e5 Reorganize the emission of (unfoldable) constant casts a bit, and 
make sure that upcasts of member pointer types are covered as constants.
Fixed rdar://problem/9130221

llvm-svn: 127702
 2011-03-15 21:17:48 +00:00
Ken Dyck 1c80fd1346 Introduce a CharUnits FieldOffsetInChars variable in AppendField() to 
replace some uses of FieldOffsetInBytes. The remaining uses of
FieldOffsetInBytes will be replaced once NextFieldOffsetInBytes is converted
to CharUnits. No change in functionality intended.

llvm-svn: 127641
 2011-03-15 01:09:02 +00:00
Ken Dyck a862d95054 Use CharUnits for argument passed to AppendPadding() from AppendBitField(). 
No change in functionality intended.

llvm-svn: 127538
 2011-03-12 12:03:11 +00:00
Ken Dyck 30a87e38d9 Change parameter to AppendPadding from bytes to CharUnits. No change in 
functionality intended.

llvm-svn: 127513
 2011-03-11 23:42:54 +00:00
Ken Dyck 327b77a442 Convert the RecordSize parameter of AppendTailPadding() to CharUnits to 
avoid converting to bits and back again. No change in functionality
intended.

llvm-svn: 127455
 2011-03-11 02:17:05 +00:00
Benjamin Kramer 0f074df979 Only emit string initializers in-place if types match. Fixes PR9373. 
llvm-svn: 126883
 2011-03-02 21:27:44 +00:00
Chris Lattner fb59c7c7d8 improve support for big endian targets, fixing PR8171, patch 
by Heikki Kultala!

llvm-svn: 125784
 2011-02-17 22:09:58 +00:00
John McCall 0217dfc2ba Perform zero-initialization of virtual base classes when emitting 
a zero constant for a complete class.  rdar://problem/8424975

To make this happen, track the field indexes for virtual bases
in the complete object.  I'm curious whether we might be better
off making CGRecordLayoutBuilder *much* more reliant on
ASTRecordLayout;  we're currently duplicating an awful lot of the ABI
layout logic.

llvm-svn: 125555
 2011-02-15 06:40:56 +00:00
Chris Lattner 91c08ad14a update for ConstantVector API change. 
llvm-svn: 125538
 2011-02-15 00:14:06 +00:00
Chris Lattner dd68bd0a65 revert my ConstantVector patch, it seems to have made the llvm-gcc 
builders unhappy.

llvm-svn: 125505
 2011-02-14 18:16:09 +00:00
Chris Lattner 2d9a7672db update for ConstantVector::get API change. 
llvm-svn: 125488
 2011-02-14 07:55:40 +00:00
Ken Dyck b0fcc59e19 Add a helper function, ASTContext::toBits(), that converts sizes in 
CharUnits to sizes in bits, and use it to tidy up the places where the
conversion was done explicitly.

llvm-svn: 125332
 2011-02-11 01:54:29 +00:00
Ken Dyck c8ae55050d Convert RecordLayout::Size to CharUnits from bits. No changes to 
functionality intended.

llvm-svn: 125156
 2011-02-09 01:59:34 +00:00
John McCall f3a8860ee1 More capturing of 'this': implicit member expressions. Getting that 
right for anonymous struct/union members led to me discovering some
seemingly broken code in that area of Sema, which I fixed, partly by  
changing the representation of member pointer constants so that    
IndirectFieldDecls aren't expanded.  This led to assorted cleanups with   
member pointers in CodeGen, and while I was doing that I saw some random
other things to clean up.                   

llvm-svn: 124785
 2011-02-03 08:15:49 +00:00
Jay Foad 6d4db0c885 PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and 
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

llvm-svn: 121121
 2010-12-07 08:25:34 +00:00
Anders Carlsson 849ea413c6 Refactor the null-initialization for record types and make it handle bases that aren't i8 arrays. 
llvm-svn: 119980
 2010-11-22 18:42:14 +00:00
Anders Carlsson fd88a6160d Rename getBaseClassOffset to getBaseClassOffsetInBits and introduce a getBaseClassOffset which returns the offset in CharUnits. Do the same thing for getVBaseClassOffset. 
llvm-svn: 117881
 2010-10-31 23:22:37 +00:00
John McCall 1c9c3fd50a Death to blocks, or at least the word "block" in one particular obnoxiously 
ambiguous context.

llvm-svn: 116567
 2010-10-15 04:57:14 +00:00
John McCall 5d865c3292 Teach IR generation to return 'this' from constructors and destructors 
under the ARM ABI.

llvm-svn: 112588
 2010-08-31 07:33:07 +00:00
John McCall e302792b61 GCC didn't care for my attempt at API compatibility, so brute-force everything 
to the new constants.

llvm-svn: 112047
 2010-08-25 11:45:40 +00:00
John McCall 7a9aac2d9f Abstract out everything having to do with member pointers into the ABI 
class;  they should just be completely opaque throughout IR gen now,
although I haven't really audited that.

Fix a bug apparently inherited from gcc-4.2 where we failed to null-check
member data pointers when performing derived-to-base or base-to-derived
conversions on them.

llvm-svn: 111789
 2010-08-23 01:21:21 +00:00
John McCall 614dbdcd55 Go back to asking CodeGenTypes whether a type is zero-initializable. 
Make CGT defer to the ABI on all member pointer types.
This requires giving CGT a handle to the ABI.
It's way easier to make that work if we avoid lazily creating the ABI.
Make it so.

llvm-svn: 111786
 2010-08-22 21:01:12 +00:00
John McCall a1dee5300b Experiment with using first-class aggregates to represent member function 
pointers.  I find the resulting code to be substantially cleaner, and it
makes it very easy to use the same APIs for data member pointers (which I have
conscientiously avoided here), and it avoids a plethora of potential
inefficiencies due to excessive memory copying, but we'll have to see if it
actually works.

llvm-svn: 111776
 2010-08-22 10:59:02 +00:00
John McCall 1c456c89dc Abstract out member-pointer creation. I'm really unhappy about the current 
duplication between the constant and non-constant paths in all of this.

Implement ARM ABI semantics for member pointer constants and conversion.

llvm-svn: 111772
 2010-08-22 06:43:33 +00:00
John McCall 84fa510aa9 Abstract more member-pointerness out. 
llvm-svn: 111771
 2010-08-22 04:16:24 +00:00