out of the llvm namespace.  This makes the clang namespace be a sibling of
llvm instead of being a child.

The good thing about this is that it makes many things unambiguous.  The
bad things is that many things in the llvm namespace (notably data structures
like smallvector) now require an llvm:: qualifier.  IMO, libsystem and libsupport
should be split out of llvm into their own namespace in the future, which will fix
this issue.

llvm-svn: 39659

double foo( int (*FP)(int, int, int)) {
  return FP(1, 2, 3);
}

to:

define double @foo(i32 (i32, i32, i32)* %FP) {
entry:
        %call = tail call i32 %FP( i32 1, i32 2, i32 3 )
        %conv = sitofp i32 %call to double
        ret double %conv
}

llvm-svn: 39658

Reviewed by: Chris Lattner

- Refactor some code from main() and ProcessInputFile() so that it helps to
  decouple the initialization of the Preprocessor object from the
  diagnostic client.

llvm-svn: 39657

llvm-svn: 39656

llvm-svn: 39655

Submitted by:
Reviewed by:
Fix CheckRelationalOperands/CheckEqualityOperands to deal with null pointer
constants. The new logic also deals (more) correctly for non-pointer/integer
operands.

llvm-svn: 39654

llvm-svn: 39653

int test(int X, short Y, float Z) {
  return (int)(X*Y+Z);
}

to:

define i32 @test(i32 %X, i16 %Y, float %Z) {
entry:
        %promote = sext i16 %Y to i32           ; <i32> [#uses=1]
        %mul = mul i32 %promote, %X             ; <i32> [#uses=1]
        %promote3 = sitofp i32 %mul to float            ; <float> [#uses=1]
        %add = add float %promote3, %Z          ; <float> [#uses=1]
        %conv = fptosi float %add to i32                ; <i32> [#uses=1]
        ret i32 %conv
}

with:

$ clang -emit-llvm t.c | llvm-as | opt -std-compile-opts | llvm-dis

llvm-svn: 39652

llvm-svn: 39651

Reviewed by: Chris Lattner

- Created a base class (TextDiagnostics) for all text diagnostic classes.
  Moved the "IgnoreDiagnostic" method up there, and created a method that
  will format the diagnostic string, replacing %# with the appropriate
  string. This is in preparation for adding a text diagnostic checker.

llvm-svn: 39650

Submitted by:
Reviewed by:
Fixed typechecking bugs wrt UsualUnaryConversions. Includes two distinct fixes:

#1: Call UsualUnaryConversions in CheckRelationalOperands/CheckEqualityOperands.
#2: UsualArithmeticConversions arguments are now output parameters. This insures
the implicit conversion is seen by clients (and fixes bugs in CheckAdditionOperands
and CheckSubtractionOperands when doing pointer arithmetic).
~

llvm-svn: 39649

void printutf8(unsigned int X) {
  if (X <= 127)
    printf("%c", (char)X);
  else if (X <= 2047)
    printf("%d %d ", 128 + 64 + (X >> 6), 128 + (X & ((1 << 6) - 1)));
  else if (X <= 65535)
    printf("%c%c%c", 128 + 64 + 32 + (X >> 12), 128 + ((X >> 6) & 63), 128 + (X & 63));
  else
    printf("UNKNOWN %d\n", X);

instead of:

  if (X <= 127)
    printf("%c", (char)X);
  else
    if (X <= 2047)
      printf("%d %d ", 128 + 64 + (X >> 6), 128 + (X & ((1 << 6) - 1)));
    else
      if (X <= 65535)
        printf("%c%c%c", 128 + 64 + 32 + (X >> 12), 128 + ((X >> 6) & 63), 128 + (X & 63));
      else
        printf("UNKNOWN %d\n", X);

llvm-svn: 39648

llvm-svn: 39647

llvm-svn: 39646

llvm-svn: 39645

llvm-svn: 39644

Submitted by:
Reviewed by:
Implement semantic analysis for vector_size attribute!
We now produce the following diagnostics...

[administrators-powerbook59:~/llvm/tools/clang] admin% ../../Debug/bin/clang vector.c
vector.c:2:29: error: attribute requires precisely 1 argument
typedef int __attribute__(( vector_size )) tVecp;
                            ^
vector.c:7:32: error: attribute requires precisely 1 argument
extern int foo __attribute__(( vector_size ));
                               ^
vector.c:8:34: error: attribute requires precisely 1 argument
extern float bar __attribute__(( vector_size(16,18) ));
                                 ^
vector.c:11:34: error: vector_size requires integer constant (attribute ignored)
extern char foo2 __attribute__(( vector_size(16.2) ));
                                 ^           ~~~~
vector.c:21:47: error: invalid vector type 'struct s'
struct s { int a; } structVar __attribute__(( vector_size(16) ));

llvm-svn: 39643

static int seminal(from, to)
{
}

llvm-svn: 39642

Reviewed by: Chris Lattner

- Added a method "IgnoreDiagnostic" so that the diagnostic client can
  tell the diagnostic object that it doesn't want to handle a particular
  diagnostic message. In which case, it won't be counted as either a
  diagnostic or error.

llvm-svn: 39641

Submitted by:
Reviewed by:
Changed the name of DeclSpec.AddAttribute and Declarator.AddAttribute to
AddAttributes(). Also added some (much needed) comments. While documenting,
realized I could simplify & tighten up Declarator.AddAttributes...

llvm-svn: 39640

Submitted by:
Reviewed by:
Add initialization and memory management for AttributeList.
Added a big FIXME comment for handling expressions (which are currently leaked).

llvm-svn: 39639

void foo() {
"\0";
}

llvm-svn: 39638

llvm-svn: 39637

a // comment, this reduces noise in the llvm testsuite.

llvm-svn: 39636

llvm-svn: 39635

llvm-svn: 39634

2005-10-18-VariableSizedElementCrash.c:5:41: warning: expected ';' at end of declaration list
  struct bar {foo f1; int f2:3; int f3:4} *p = (struct bar *) pi;
                                        ^

llvm-svn: 39633

e.g.:

struct A {
  ;
  int X;;
  const;
};

llvm-svn: 39632

Submitted by:
Reviewed by:
Incorporate some feedback from Chris.
Fixed a crasher, added an assert.

llvm-svn: 39631

Submitted by:
Reviewed by:
Move Attr.h to the correct group in the Xcode project file...

llvm-svn: 39630

Submitted by:
Reviewed by:
Lot's of attribute scaffolding.
Modernized ParseArraySubscriptExpr...call DefaultFunctionArrayConversion (which
simplified the logic considerably) and upgrade Diags to use the range support.

llvm-svn: 39629

Submitted by:
Reviewed by:
Lot's of attribute scaffolding.
Modernized ParseArraySubscriptExpr...call DefaultFunctionArrayConversion (which
simplified the logic considerably) and upgrade Diags to use the range support.

llvm-svn: 39628

Submitted by:
Reviewed by:
Add new file AttributeList.h

llvm-svn: 39627

Submitted by:
Reviewed by:
Add AttributeList.cpp (for "raw" attributes).

llvm-svn: 39626

llvm-svn: 39625

stuff like:

void test() {
  int *X, Y, *Z[14];

  X[Y] = 4;
}

llvm-svn: 39624

like: int X, Y, Z;

This is required for the code gen to get to all of the declarations in a
DeclStmt, and should simplify some other code.

llvm-svn: 39623

llvm-svn: 39622

http://gcc.gnu.org/onlinedocs/gcc/Binary-constants.html#Binary-constants

llvm-svn: 39621

llvm-svn: 39620