without defining them.  This should be an error, but I'm paranoid about
"uses" that end up not actually requiring a definition.  I'll revisit later.

Also, teach IR generation to not set internal linkage on variable
declarations, just for safety's sake.  Doing so produces an invalid module
if the variable is not ultimately defined.

Also, fix several places in the test suite where we were using internal
functions without definitions.

llvm-svn: 126016

llvm-svn: 125990

turn off all builtin optimizations.

llvm-svn: 125979

target triple.  This would be a decent place to add -fno-builtin
info for example.

llvm-svn: 125971

scalar types. // rdar://7761305

llvm-svn: 125946

_Block_object_* flags;  it's just BLOCK_HAS_COPY_DISPOSE or not.

Also, we don't need to chase forwarding pointers prior to calling
_Block_object_dispose;  _Block_object_dispose in fact already does
this.

rdar://problem/9006315

llvm-svn: 125823

This removes the final dependency edge from any lib outside of CodeGen
to core.  As a result we can, and do, trim the dependency on core
from libclang, PrintFunctionNames, the unit tests and c-index-test.
While at it, review and trim other unneeded dependencies.

llvm-svn: 125820

llvm-svn: 125819

bugs from other clients that don't expect to see a LabelDecl in a DeclStmt,
but if so they should be easy to fix.

This implements most of PR3429 and rdar://8287027

llvm-svn: 125817

by Heikki Kultala!

llvm-svn: 125784

llvm-svn: 125761

class and to bind the shared value using OpaqueValueExpr.  This fixes an
unnoticed problem with deserialization of these expressions where the
deserialized form would lose the vital pointer-equality trait;  or rather,
it fixes it because this patch also does the right thing for deserializing
OVEs.

Change OVEs to not be a "temporary object" in the sense that copy elision is
permitted.

This new representation is not totally unawkward to work with, but I think
that's really part and parcel with the semantics we're modelling here.  In
particular, it's much easier to fix things like the copy elision bug and to
make the CFG look right.

I've tried to update the analyzer to deal with this in at least some          
obvious cases, and I think we get a much better CFG out, but the printing
of OpaqueValueExprs probably needs some work.

llvm-svn: 125744

No one uses *-mingw64. mingw-w64 is represented as {i686|x86_64}-w64-mingw32.

llvm-svn: 125742

llvm-svn: 125741

LabelDecl and LabelStmt.  There is a 1-1 correspondence between the
two, but this simplifies a bunch of code by itself.  This is because
labels are the only place where we previously had references to random
other statements, causing grief for AST serialization and other stuff.

This does cause one regression (attr(unused) doesn't silence unused
label warnings) which I'll address next.

This does fix some minor bugs:
1. "The only valid attribute " diagnostic was capitalized.
2. Various diagnostics printed as ''labelname'' instead of 'labelname'
3. This reduces duplication of label checking between functions and blocks.

Review appreciated, particularly for the cindex and template bits.

llvm-svn: 125733

llvm-svn: 125694

If preprocessed token introduced empty filename then use main translation unit's filename for debug info entries.

llvm-svn: 125672

llvm-svn: 125662

llvm-svn: 125661

This patch rewrites r125142.

llvm-svn: 125632

Nobody ever gave me a clear reason for why we were doing this, and
now it's apparently causing serious problems, so if *not* having this
causes problems, we get to solve them the right way this time.

llvm-svn: 125627

C struct arguments do not need this adjustment.
This fixes 7 failures in callfuncs.exp from gdb testsuite.

llvm-svn: 125615

llvm-svn: 125605

ends up in the text segment. // rdar://8825235.

llvm-svn: 125585

"used". Fixes <rdar://problem/8684363>.

llvm-svn: 125579

  - Have CGM precompute a number of commonly-used types
  - Have CGF copy that during initialization instead of recomputing them
  - Use TBAA info when initializing a parameter variable
  - Refactor the scalar ++/-- code

llvm-svn: 125562

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

functionality intended. 

llvm-svn: 125549

llvm-svn: 125538

builders unhappy.

llvm-svn: 125505

llvm-svn: 125488

FP_CONTRACT pragmas.  Patch originally by ARM.

llvm-svn: 125475

Stmt::const_child_range, then make a bunch of places use them instead
of the individual iterator accessors.

llvm-svn: 125450

destruction in the destructor-aliases logic.  Fixes PR 9197.

llvm-svn: 125447

I also sorted the tools/driver dependencies since their order no
longer matters.

llvm-svn: 125417

llvm-svn: 125360

unnecessary calls to RoundUpToAlignment. No changes to functionality
intended.

llvm-svn: 125356

CharUnits to sizes in bits, and use it to tidy up the places where the
conversion was done explicitly.

llvm-svn: 125332

llvm-svn: 125321

llvm-svn: 125293