llvm-svn: 44553

  http://llvm.org/viewvc/llvm-project?view=rev&revision=44551

Removed debugging fprintfs for printing targets.
Implemented error messages when processing invalid targets.

llvm-svn: 44552

replaces the functionality previously provided by just "-arch" (which is still
supported but has different semantics).

The new behavior is as follows:

(1) If the user does not specify -triple:

   (a) If no -arch options are specified, the target triple used is the host
   triple (in llvm/Config/config.h).
   
   (b) If one or more -arch's are specified (and no -triple), then there is
       one triple for each -arch, where the specified arch is substituted
       for the arch in the host triple.  Example:
          host triple = i686-apple-darwin9
          command: clang  -arch ppc -arch ppc64 ...
          triples used: ppc-apple-darwin9  ppc64-apple-darwin9
          
(2) The user does specify a -triple (only one allowed):

  (a) If no -arch options are specified, the triple specified by -triple
      is used.  E.g clang -triple i686-apple-darwin9
      
  (b) If one or more -arch options are specified, then the triple specified
      by -triple is used as the primary target, and the arch's specified
      by -arch are used to create secondary targets.  For example:
      
      clang -triple i686-apple-darwin9 -arch ppc -arch ppc64
      
      has the following targets:
         i686-apple-darwin9  (primary target)
         ppc-apple-darwin9
         ppc64-apple-darwin9


Other changes related to the changes to the driver:

- TargetInfoImpl now includes the triple string.

- TargetInfo::getTargetTriple returns the triple for its primary target.

- test case test/Parser/portability.c has been updated because "-arch linux" is
  no longer valid ("linux" is an OS, not an arch); instead we use a bogus
  architecture "bogusW16W16" where WCharWidth=16 and WCharAlign=16.

llvm-svn: 44551

llvm-svn: 44550

llvm-svn: 44548

(Also fixed a regression caused by recent changes to synthesis of structs).

llvm-svn: 44540

provide handy accessors to the subexpressions of ConditionalOperator that
automatically take into account the GCC extension where the "LHS" expression is
omitted: e.g x ?: y;. When the LHS expression is available, getTrueExpr() is the
same as getLHS(); when LHS is NULL, getTrueExpr() returns the condition expression.

llvm-svn: 44536

standard says that we should adjust the "reference to T" type to "T"
before analysis.

llvm-svn: 44530

llvm-svn: 44529

Handle initializing vector elements correctly. Emit just one warning if there are excess initializers, instead of one per initializer.

llvm-svn: 44525

llvm-svn: 44523

llvm-svn: 44521

llvm-svn: 44520

in the header. Patch by Cédric Venet.

llvm-svn: 44519

Treat discarding array initializer elements as an extwarn (so -pedantic-errors flags it). Allow CodeGen to truncate the initializer if needed.

llvm-svn: 44518

llvm-svn: 44516

extern storage class was returning false from hasStaticStorage.
Ted, please review this.

llvm-svn: 44515

llvm-svn: 44514

llvm-svn: 44513

llvm-svn: 44512

llvm-svn: 44511

llvm-svn: 44510

extern int x[];
void foo() { x[0] = 1; }
int x[10];
void bar() { x[0] = 1; }

llvm-svn: 44509

llvm-svn: 44508

llvm-svn: 44507

their prototype.

llvm-svn: 44506

llvm-svn: 44505

llvm-svn: 44504

llvm-svn: 44503

llvm-svn: 44502

t.c:3322:5: warning: cannot codegen this yet
    __asm__ ("bswap   %0" : "+r" (_data));
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

instead of:

Unimplemented stmt!
(AsmStmt 0x80eaa0 <t.c:3331:5, line:3334:28>)

llvm-svn: 44501

llvm-svn: 44500

llvm-svn: 44499

rewriter emit this error if it fails to rewrite an @encode:

t.m:17:9: error: rewriter could not replace sub-expression due to macros
    c = ENC(char *)[2] + 4;
        ^~~~~~~~~~~

... where ENC is: #define ENC @encode

llvm-svn: 44498

among other things.

Also change a codegen warning to dump to stderr so it doesn't
mess with -emit-llvm output

llvm-svn: 44497

llvm-svn: 44496

We now use the CodeGenModule logic for generating the constant 
initialiser expression, so happily further initialiser fixes should 
automatically work for statics as well.

llvm-svn: 44495

llvm-svn: 44492

llvm-svn: 44491

llvm-svn: 44490