llvm-svn: 73362

they contain multiplications of constants with add operations.
This helps simplify several kinds of things; in particular it
helps simplify expressions like ((-1 * (%a + %b)) + %a) to %b,
as expressions like this often come up in loop trip count
computations.

llvm-svn: 73361

used as keys in DenseMaps.

llvm-svn: 73360

the potentially expensive erase.

llvm-svn: 73359

even though the order doesn't matter at the top level of an expression,
it does matter when the constant is a subexpression of an n-ary
expression, because n-ary expressions are sorted lexicographically.

llvm-svn: 73358

SmallVector instead of std::vector.

llvm-svn: 73357

like "int x = + +3;".

llvm-svn: 73356

llvm-svn: 73355

llvm-svn: 73353

static intializers for structs.

llvm-svn: 73349

Move register allocation preference (or hint) from LiveInterval to MachineRegisterInfo. This allows more passes to set them.

llvm-svn: 73346

Patch by Jean-Daniel Dupas

llvm-svn: 73343

llvm-svn: 73342

llvm-svn: 73341

is that, for functions whose bodies are entirely guarded by an if-statement, it
can be profitable to pull the test out of the callee and into the caller.

This code has had some cursory testing, but still has a number of known issues
on the LLVM test suite.

llvm-svn: 73338

that were suppressed due to SFINAE. By checking whether any errors
occur at the end of template argument deduction, we avoid the
possibility of suppressing an error (due to SFINAE) and then
recovering so well that template argument deduction never detects that
there was a problem. Thanks to Eli for the push in this direction.

llvm-svn: 73336

Introduce new BinaryObject (blob) class, ELF Writer modified to use it. BinaryObject.h by Aaron Gray

llvm-svn: 73333

Implement support for C++ Substitution Failure Is Not An Error
(SFINAE), which says that errors that occur during template argument
deduction do *not* produce diagnostics and do not necessarily make a
program ill-formed. Instead, template argument deduction silently
fails. This is currently implemented for template argument deduction
during matching of class template partial specializations, although
the mechanism will also apply to template argument deduction for
function templates. The scheme is simple:

  - If we are in a template argument deduction context, any diagnostic
    that is considered a SFINAE error (or warning) will be
    suppressed. The error will be propagated up the call stack via the
    normal means.
  - By default, all warnings and errors are SFINAE errors. Add the
    NoSFINAE class to a diagnostic in the .td file to make it a hard
    error (e.g., for access-control violations).

Note that, to make this fully work, every place in Sema that emits an
error *and then immediately recovers* will need to check
Sema::isSFINAEContext() to determine whether it must immediately
return an error rather than recovering.

llvm-svn: 73332

llvm-svn: 73331

llvm-svn: 73323

foo has a constant address.

llvm-svn: 73321

llvm-svn: 73320

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

fixes a layering violation in lib/Basic/Targets.cpp.

llvm-svn: 73318

llvm-svn: 73317

llvm-svn: 73316

ExpectAndConsume instead of custom diag logic.  This gets us an
insertion hint and positions the ; at the end of the line 
instead of on the next token.  Before:

t.c:5:1: error: expected ';' after return statement
}
^

after:

t.c:4:11: error: expected ';' after return statement
  return 4
          ^
          ;

llvm-svn: 73315

diagnostics in some cases.

llvm-svn: 73314

the check for extern "c" system headers, which should prevent functiondecls
from being mangled.

llvm-svn: 73311

llvm-svn: 73310

x86-32.  This is slightly messy, but I think it's consistent with gcc.

llvm-svn: 73306

warnings when building with VC++, patch by AlisdairM!

llvm-svn: 73305

llvm-svn: 73304

llvm-svn: 73301

llvm-svn: 73300

pointer. This fixes kimwitu++. Pointed out by Frits van Bommel on review!

llvm-svn: 73299

 - TestRunner.sh still needs to be moved over.

 - Please let me know if you find problems / missing features.

llvm-svn: 73298

Have CheckClassTemplatePartialSpecializationArgs take a TemplateArgumentListBuilder. No functionality change.

llvm-svn: 73297

llvm-svn: 73296

The subprogram descriptor for a function may be missing (llvm-ld linking two static functions with same name), so pick up the compilation unit for the function from the first valid debug loc of its instructions.
This patch also emits debug info for structure (aggregate types in 
general) types.

llvm-svn: 73295