Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602

llvm-svn: 67601

llvm-svn: 67598

llvm-svn: 67596

llvm-svn: 67595

class C {
  void g(C c);

  virtual void f() = 0;
};

In this case, C is not known to be abstract when doing semantic analysis on g. This is done by recursively traversing the abstract class and checking the types of member functions. 

llvm-svn: 67594

llvm-svn: 67593

llvm-svn: 67592

executables (e.g., clang).
 - This matches the clang-driver behavior.

llvm-svn: 67590

to be returned in DL. LLVM's multiple-return-value support is
not ABI-conforming; front-ends that wish to have code emitted
that conforms to an ABI are currently expected to make
arrangements for this on their own rather than assuming that
multiple-return-values will automatically do the right thing.
This commit doesn't fundamentally change this situation.

llvm-svn: 67588

canClobberPhysRegDefs if the successor node doesn't
clobber any physical registers.

llvm-svn: 67587

help out the register pressure reduction heuristics in the case of
nodes with multiple uses. Currently this uses very conservative
heuristics, so it doesn't have a broad impact, but in cases where it
does help it can make a big difference.

llvm-svn: 67586

llvm-svn: 67585

llvm-svn: 67584

ccc due to the different way we handle output arguments).

llvm-svn: 67583

llvm-svn: 67581

llvm-svn: 67580

eliminating the duplication is next on the list.

llvm-svn: 67579

llvm-svn: 67578

llvm-svn: 67577

always get ParmVarDecls with already-adjusted types. Assert it.

Thanks, Anders!

llvm-svn: 67576

a class template. At present, we can only instantiation normal
methods, but not constructors, destructors, or conversion operators.

As ever, this contains a bit of refactoring in Sema's type-checking. In
particular:

  - Split ActOnFunctionDeclarator into ActOnFunctionDeclarator
    (handling the declarator itself) and CheckFunctionDeclaration
    (checking for the the function declaration), the latter of which
    is also used by template instantiation.
  - We were performing the adjustment of function parameter types in
    three places; collect those into a single new routine.
  - When the type of a parameter is adjusted, allocate an
    OriginalParmVarDecl to keep track of the type as it was written.
  - Eliminate a redundant check for out-of-line declarations of member
    functions; hide more C++-specific checks on function declarations
    behind if(getLangOptions().CPlusPlus).

llvm-svn: 67575

Fix a bug in spill weight computation. If the alias is a super-register, and the super-register is in the register class we are trying to allocate. Then add the weight to all sub-registers of the super-register even if they are not aliases.                                                                                                  
e.g. allocating for GR32, bh is not used, updating bl spill weight.                                                                                                        
     bl should get the same spill weight otherwise it will be choosen                                                                                              
     as a spill candidate since spilling bh doesn't make ebx available.
This fix PR2866.

llvm-svn: 67574

llvm-svn: 67573

A test case to test that -warn-dead-stores does not emit a warning for stores to variables marked with '#pragma unused'.

llvm-svn: 67570

llvm-svn: 67569

llvm-svn: 67565

On a synthetic command line consisting of almost all defined options,
this drops wall time from .00494 to .00336 and user time from .00258
to .00105.

On the same benchmark, clang-driver is about 15% faster than the
primary gcc driver and almost twice as fast as the gcc driver driver.

llvm-svn: 67564

same as a normal i80 {low64, high16} rather
than its own {high64, low16}.  A depressing number
of places know about this; I think I got them all.
Bitcode readers and writers convert back to the old
form to avoid breaking compatibility.

llvm-svn: 67562

llvm-svn: 67560

llvm-svn: 67559

a data dependency on the load node, so it really needs a
data-dependence edge to the load node, even if the load previously
existed.

And add a few comments.

llvm-svn: 67554

llvm-svn: 67553

llvm-svn: 67552

llvm-svn: 67551

More improvements to abstract type checking. Handle arrays correctly, and make sure to check parameter types before they decay.

llvm-svn: 67550

clang doesn't support, and don't want to warn are unused. Eventually
these should disappear.

Here is a more readable list than is in the diff:

W options: -Wall, -Wcast-align, -Wchar-align, -Wchar-subscripts,
-Werror, -Wextra, -Winline, -Wint-to-pointer-cast, -Wmissing-braces,
-Wmost, -Wnested-externs, -Wno-format-y2k, -Wno-four-char-constants,
-Wno-missing-field-initializers, -Wno-trigraphs, -Wno-unknown-pragmas,
-Wno-unused-parameter, -Wparentheses, -Wpointer-arith,
-Wpointer-to-int-cast, -Wreturn-type, -Wshorten-64-to-32, -Wswitch,
-Wunused-function, -Wunused-label, -Wunused-value, -Wunused-variable,
-Wwrite-strings.

f options: -fasm-blocks, -fmessage-length=.

llvm-svn: 67549

Release-Asserts mode).

Also, avoid searching through option groups (which will never match).

llvm-svn: 67548

llvm-svn: 67545

llvm-svn: 67544