llvm-svn: 78562

llvm-svn: 78561

llvm-svn: 78560

llvm-svn: 78559

llvm-svn: 78558

llvm-svn: 78557

llvm-svn: 78556

For example,
--
ddunbar@giles:Frontend$ clang -c backend-errors.c
fatal error: error in backend: Global variable 'a' has an invalid section specifier
      'I AM, not, legal': mach-o section specifier uses an unknown section type.
--
compare to:
--
ddunbar@giles:Frontend$ gcc -c backend-errors.c
/var/folders/DQ/DQ8GT3++HESEzT1obWBynE+++TI/-Tmp-//cc45w2pq.s:2:Expected comma after segment-name
/var/folders/DQ/DQ8GT3++HESEzT1obWBynE+++TI/-Tmp-//cc45w2pq.s:2:Rest of line ignored. 1st junk character valued 77 (M).
--

Yay!

I am not tied to my wording choice, we could also go with "uncoverable error"
for the prefix, or just leave it off entirely.

llvm-svn: 78554

llvm-svn: 78553

add support for PtrToInt, Add, Mul.

llvm-svn: 78552

--- Reverse-merging r78535 into '.':
D    test/Sema/altivec-init.c
U    include/clang/Basic/DiagnosticSemaKinds.td
U    include/clang/AST/Expr.h
U    include/clang/AST/StmtNodes.def
U    include/clang/Parse/Parser.h
U    include/clang/Parse/Action.h
U    tools/clang-cc/clang-cc.cpp
U    lib/Frontend/PrintParserCallbacks.cpp
U    lib/CodeGen/CGExprScalar.cpp
U    lib/Sema/SemaInit.cpp
U    lib/Sema/Sema.h
U    lib/Sema/SemaExpr.cpp
U    lib/Sema/SemaTemplateInstantiateExpr.cpp
U    lib/AST/StmtProfile.cpp
U    lib/AST/Expr.cpp
U    lib/AST/StmtPrinter.cpp
U    lib/Parse/ParseExpr.cpp
U    lib/Parse/ParseExprCXX.cpp

llvm-svn: 78551

llvm-svn: 78550

llvm-svn: 78549

instead of syntactically as a string.  This means that it keeps track of the 
segment, section, flags, etc directly and asmprints them in the right format.
This also includes parsing and validation support for llvm-mc and 
"attribute(section)", so we should now start getting errors about invalid 
section attributes from the compiler instead of the assembler on darwin.

Still todo: 
1) Uniquing of darwin mcsections
2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h]
3) there are a few FIXMEs, for example what is the syntax to get the
   S_GB_ZEROFILL segment type?

llvm-svn: 78547

llvm-svn: 78546

llvm-svn: 78545

llvm-svn: 78544

llvm-svn: 78543

llvm-svn: 78542

llvm-svn: 78541

llvm-svn: 78540

llvm-svn: 78538

Refactor to remove un-named struct gnu extension usage. Now ISO C89 and C99 compliant. Comment trailing endifs

llvm-svn: 78537

llvm-svn: 78536

In addition to being defined by the AltiVec PIM, this is also the vector
initializer syntax used by OpenCL, so that vector literals are compatible
with macro arguments.

llvm-svn: 78535

llvm-svn: 78534

llvm-svn: 78533

make it easier to see interesting ambiguities.
 - Also, check that user doesn't try to redefine the super class. This is a wart
   in the current design, in that assembler match classes aren't explicitly
   declared somewhere (so there isn't a unique place to declare the super
   class). This should probably be fixed.

llvm-svn: 78532

llvm-svn: 78531

 - We can now discriminate SUB32ri8 from SUB32ri, for example.

llvm-svn: 78530

llvm-svn: 78529

llvm-svn: 78528

 - We want the ordering operation to be simple, since we run it on every
   match. The old ordering is also not a strict weak ordering when there are
   ambiguities, which makes MSVC unhappy.

 - While we are at it, detect all ambiguities instead of just the adjacent
   ones. There are actually 655, for X86.

llvm-svn: 78526

take the table vectors as separate arguments, instead of the previous
approach where they were combined into one big vector.

llvm-svn: 78525

classes for X86.

llvm-svn: 78524

 -2 FIXMEs.

llvm-svn: 78523

ambiguities.
 - Currently there are 483 ambiguities to resolve. :)

llvm-svn: 78522

llvm-svn: 78521

llvm-svn: 78520

llvm-svn: 78519