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34847 Commits

Author SHA1 Message Date
Chris Lattner 1ec5f563c7 First cut at warning about expressions whose results are ignored. For example, 
this produces:

warn.c:4:3: warning: expression result unused
  X == Y;
  ^~~~~~
warn.c:5:3: warning: expression result unused
  (void)X;
  ^~~~~~~
warn.c:11:3: warning: expression result unused
  A == foo(1, 2);
  ^~~~~~~~~~~~~~
warn.c:13:3: warning: expression result unused
  foo(1,2)+foo(4,3);
  ^~~~~~~~~~~~~~~~~

llvm-svn: 39682
 2007-06-27 05:38:08 +00:00
Bill Wendling eb2def66be Submitted by: Bill Wendling 
- Converted to use the -parse-ast-check flag.

llvm-svn: 39681
 2007-06-27 04:30:12 +00:00
Bill Wendling ff1d2c81ba Submitted by: Bill Wendling 
- Convert to using the -parse-ast-check method to check warnings and
  errors.

llvm-svn: 39680
 2007-06-27 04:07:44 +00:00
Bill Wendling 97d4146c5a Submitted by: Bill Wendling 
- Shouldn't increment the iterator but a copy of it.

llvm-svn: 39679
 2007-06-27 04:06:59 +00:00
Bill Wendling 469211a295 Submitted by: Bill Wendling 
Reviewed by: Chris Lattner

- Added a new diagnostic client, TextDiagnosticBuffer. It buffers all
  reported diagnostics.
- Use the new diagnostic client to check that expected diagnostics are
  actually emitted. The way this is done is to put the expected
  diagnostic in a comment on the line you expect it to be emitted for.
  Like this:

    int X = A; // expected-warning {{blah}}

- Use -parse-ast-check to use this feature.

llvm-svn: 39678
 2007-06-27 03:19:45 +00:00
Chris Lattner cd68f64551 Start bringing the exprstmt hook back. 
llvm-svn: 39677
 2007-06-27 01:06:29 +00:00
Bill Wendling aec64c35f1 Submitted by: Bill Wendling 
- Separate out the AST streamers from the clang.cpp file into their very
  own special files.

llvm-svn: 39676
 2007-06-23 00:39:57 +00:00
Bill Wendling 26e1f8c05a Bug #: 
Submitted by: Bill Wendling

- Convert std::cerr to using fprintf(stderr, ...) instead.

llvm-svn: 39675
 2007-06-22 22:43:15 +00:00
Chris Lattner 54fb19efaa implement support for struct and complex returns. 
llvm-svn: 39674
 2007-06-22 22:02:34 +00:00
Chris Lattner e9a6453ded add some infrastructure for codegen'ing complex numbers. implement addition 
of complex.  We now produce optimal code for:

void test(_Complex float *Y) {
  *Y = *Y + *Y;
}

$ clang -emit-llvm cg.c | llvm-as | opt -std-compile-opts | llc -march=x86-64
...
_test:
        movss (%rdi), %xmm0
        addss %xmm0, %xmm0
        movss 4(%rdi), %xmm1
        movss %xmm0, (%rdi)
        addss %xmm1, %xmm1
        movss %xmm1, 4(%rdi)
        ret

llvm-svn: 39673
 2007-06-22 21:44:33 +00:00
Chris Lattner c6395936ae Split complex types out from being members of BuiltinType to being their own 
types.

llvm-svn: 39672
 2007-06-22 20:56:16 +00:00
Chris Lattner f033c147c9 remove location tracking for target info 
llvm-svn: 39671
 2007-06-22 19:05:19 +00:00
Chris Lattner 0fb8465981 Don't forget to set this 
llvm-svn: 39670
 2007-06-22 18:57:44 +00:00
Chris Lattner 09153c0a8c Build enough support for aggregates to be able to compile this: 
void test(int A, _Complex float Y) {
  _Complex float X;
  X = X;

}

llvm-svn: 39669
 2007-06-22 18:48:09 +00:00
Chris Lattner 3e3a1e9cda implement lowering of complex types 
llvm-svn: 39668
 2007-06-22 18:15:26 +00:00
Chris Lattner f39b03d98b fix naming of aggregate arguments. 
llvm-svn: 39667
 2007-06-22 18:15:16 +00:00
Chris Lattner 1fde0b345b implement codegen of the relational operations 
One major FIXME though.

llvm-svn: 39666
 2007-06-20 18:30:55 +00:00
Chris Lattner 273c63d450 Implement the equality operators for simple types 
llvm-svn: 39665
 2007-06-20 18:02:30 +00:00
Chris Lattner e1e93a5e5d assert, don't crash, on int[] 
llvm-svn: 39664
 2007-06-20 17:12:11 +00:00
Chris Lattner b6984c4854 Hook up global function and variable handling. We can now compile: 
int X, bar(int,int,int);
short Y;

double foo() {
  return bar(X, Y, 3);
}

into:

@X = external global i32                ; <i32*> [#uses=1]
@Y = external global i16                ; <i16*> [#uses=1]

define double @foo() {
entry:
        %tmp = load i32* @X             ; <i32> [#uses=1]
        %tmp1 = load i16* @Y            ; <i16> [#uses=1]
        %promote = sext i16 %tmp1 to i32                ; <i32> [#uses=1]
        %call = tail call i32 @bar( i32 %tmp, i32 %promote, i32 3 )             ; <i32> [#uses=1]
        %conv = sitofp i32 %call to double              ; <double> [#uses=1]
        ret double %conv
}

declare i32 @bar(i32, i32, i32)

llvm-svn: 39663
 2007-06-20 04:44:43 +00:00
Chris Lattner b3fef07a30 add new files to xcode project 
llvm-svn: 39662
 2007-06-16 00:17:33 +00:00
Chris Lattner 2ccb73bc8b Refactor CodeGenTypes out to CodeGenModule so it can be used for functions 
and globals.

llvm-svn: 39661
 2007-06-16 00:16:26 +00:00
Chris Lattner 2052bc8107 Split type analysis out to its own file, now the integer constant expr evaluation 
is ready.

llvm-svn: 39660
 2007-06-16 00:12:05 +00:00
Chris Lattner 23b7eb677d Finally bite the bullet and make the major change: split the clang namespace 
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
 2007-06-15 23:05:46 +00:00
Chris Lattner 2b228c95aa implement codegen of calls. We can now compile: 
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
 2007-06-15 21:34:29 +00:00
Bill Wendling 52d85bdd2b Submitted by: Bill Wendling 
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
 2007-06-15 21:20:00 +00:00
Chris Lattner d760e468aa Don't generate code for prototypes 
llvm-svn: 39656
 2007-06-15 21:16:23 +00:00
Chris Lattner b48238188e Fix a nasty bug which caused infinite recursion 
llvm-svn: 39655
 2007-06-15 21:04:38 +00:00
Steve Naroff 75c1723b3c Bug #: 
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
 2007-06-13 21:41:08 +00:00
Chris Lattner cf98efa73b Implement implicit conversions in return stmts. 
llvm-svn: 39653
 2007-06-13 20:50:31 +00:00
Chris Lattner 53621a535d Implement support for formal arguments. We can now compile this: 
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
 2007-06-13 20:44:40 +00:00
Chris Lattner 23cff88741 Update the xcode project for bill 
llvm-svn: 39651
 2007-06-13 20:14:12 +00:00
Bill Wendling 478b88638f Submitted by: Bill Wendling 
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
 2007-06-13 17:45:37 +00:00
Steve Naroff d6fbee81df Bug #: 
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
 2007-06-13 15:42:33 +00:00
Chris Lattner c0a38dd38f Pretty print if/else/elseif chains nicer, like this: 
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
 2007-06-11 22:26:23 +00:00
Chris Lattner d4a20ad752 Wording fix for a diagnostic, suggested by bill 
llvm-svn: 39647
 2007-06-11 20:54:56 +00:00
Chris Lattner f99b3f5ec2 Emit codegen of enum literals. 
llvm-svn: 39646
 2007-06-11 03:52:52 +00:00
Chris Lattner 9fba02845b Enums are integer constant exprs, return their values. 
llvm-svn: 39645
 2007-06-11 03:47:05 +00:00
Chris Lattner 4ef40013d7 Implement capturing of enum values and chaining of enums together. 
llvm-svn: 39644
 2007-06-11 01:28:17 +00:00
Steve Naroff a8fd973aa0 Bug #: 
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
 2007-06-11 00:35:03 +00:00
Chris Lattner 843c592e28 GCC accepts code like this as an extension: 
static int seminal(from, to)
{
}

llvm-svn: 39642
 2007-06-10 23:40:34 +00:00
Bill Wendling 314ae547a1 Submitted by: Bill Wendling 
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
 2007-06-10 04:13:42 +00:00
Steve Naroff 0f05a7ae7a Bug #: 
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
 2007-06-09 23:38:17 +00:00
Steve Naroff 5b6afadf81 Bug #: 
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
 2007-06-09 14:13:39 +00:00
Chris Lattner 3f4b6e3623 Fix lexing octal escapes like: 
void foo() {
"\0";
}

llvm-svn: 39638
 2007-06-09 06:20:47 +00:00
Chris Lattner b2dd241b15 fix a crash parsing spass 
llvm-svn: 39637
 2007-06-09 06:16:32 +00:00
Chris Lattner ff591e24eb Don't warn about escaped newlines in // comments if the next line is also 
a // comment, this reduces noise in the llvm testsuite.

llvm-svn: 39636
 2007-06-09 06:07:22 +00:00
Chris Lattner 736ed5dfb8 accept __extension__, update todo list. 
llvm-svn: 39635
 2007-06-09 05:59:07 +00:00
Chris Lattner 6d9b49ae64 add another example 
llvm-svn: 39634
 2007-06-09 05:56:19 +00:00
Chris Lattner 0c7e82de07 Accept horrible code like this: 
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
 2007-06-09 05:54:40 +00:00