Commit Graph

324 Commits

Author SHA1 Message Date
Steve Naroff 04e8bc8e35 Remove a space from "typeof" printing. It was causing the following error...
[dylan:clang/test/Parser] admin% ../../../../Debug/bin/clang -parse-ast-check typeof.c 
Warnings expected but not seen:
  Line 21: incompatible types assigning 'typeof(*pi) const' to 'int *'
Warnings seen but not expected:
  Line 21: incompatible types assigning 'typeof(*pi)  const' to 'int *'

Also corrected a typo from my previous commit.

llvm-svn: 40832
2007-08-05 03:24:45 +00:00
Steve Naroff 8a4cf97aa9 Make sure the good old "function/array conversion" is done to function parameters.
This resulted in the following error...

[dylan:clang/test/Parser] admin% cat parmvardecl_conversion.c 
// RUN: clang -parse-ast-check %s

void f (int p[]) { p++; }

[dylan:clang/test/Parser] admin% clang -parse-ast-check parmvardecl_conversion.c 
Errors seen but not expected:
  Line 3: cannot modify value of type 'int []'

With this fix, the test case above succeeds.

llvm-svn: 40831
2007-08-05 02:16:31 +00:00
Steve Naroff 0104731e62 Restrict vector component access (using "." and "[]") to variables.
Chris suggested this, since it simplifies the code generator.
If this features is needed (and we don't think it is), we can revisit.

The following test case now produces an error.
[dylan:~/llvm/tools/clang] admin% cat t.c

typedef __attribute__(( ocu_vector_type(4) )) float float4;

static void test() {
    float4 vec4;

    vec4.rg.g;
    vec4.rg[1];
}
[dylan:~/llvm/tools/clang] admin% ../../Debug/bin/clang t.c
t.c:8:12: error: vector component access limited to variables
    vec4.rg.g;
           ^~
t.c:9:12: error: vector component access limited to variables
    vec4.rg[1];
           ^~~
2 diagnostics generated.

llvm-svn: 40795
2007-08-03 22:40:33 +00:00
Steve Naroff 9efdabc565 Implement __builtin_choose_expr.
llvm-svn: 40794
2007-08-03 21:21:27 +00:00
Chris Lattner d268a7a268 Rename AddrLabel and OCUVectorComponent -> AddrLabelExpr and OCUVectorElementExpr respectively. This is for consistency with other expr nodes end with *Expr.
llvm-svn: 40785
2007-08-03 17:31:20 +00:00
Chris Lattner 7e152dbb1f rename some helpers, have them return the idx of the field being accessed.
llvm-svn: 40764
2007-08-02 22:33:49 +00:00
Steve Naroff 788d864d6c - Finish hooking up support for __builtin_types_compatible_p().
- Fix type printing code for recently added TypeOfExpr/TypeOfType.

llvm-svn: 40700
2007-08-01 23:45:51 +00:00
Steve Naroff 7886467b35 Add AST/Sema support for __builtin_types_compatible_p (a GNU extension).
Todo...still need to call the action from the parser...

llvm-svn: 40693
2007-08-01 22:05:33 +00:00
Steve Naroff 236becbbc3 Two typeof() related changes...
- Changed the name of ASTContext::getTypeOfType(Expr*)->getTypeOfExpr().
- Remove FIXME for TypeOfExpr::getAsStringInternal(). This will work fine for printing the AST. It isn't ideal
for error diagnostics (since it's more natural to display the expressions type). 

One "random" (or at least delayed:-) change...

- Changed all "ext_typecheck_*" diagnostics from EXTENSION->WARNING. Reason: Since -pedantic is now
off (by default), these diagnostics were never being emitted (which is bad). With this change, clang will
emit the warning all the time. The only downside (wrt GCC compatibility) is -pedantic-errors will not turn
this diagnostics into errors (a "feature" of making tagging them with EXTENSION). When/if this becomes
an issue, we can revisit.

llvm-svn: 40676
2007-08-01 17:20:42 +00:00
Chris Lattner 0fd893e643 remove more explicit accesses to the canonical type pointer.
llvm-svn: 40653
2007-07-31 21:33:24 +00:00
Chris Lattner e5a6cbd457 simplify some type checking code, don't explicitly access
canonical types.

llvm-svn: 40652
2007-07-31 21:27:01 +00:00
Chris Lattner 4197796f65 split the rest of the type predicates into pure predicates:
there is now an isXXXType and a getAsXXXType

llvm-svn: 40646
2007-07-31 19:29:30 +00:00
Chris Lattner cd1d086b5a rename isReferenceType to follow the new scheme.
llvm-svn: 40640
2007-07-31 16:56:34 +00:00
Chris Lattner c996b176e8 make isPointerType() a pure predicate, rename the
existing one to getAsPointerType()

llvm-svn: 40639
2007-07-31 16:53:04 +00:00
Steve Naroff ad373bdcfe Add parsing and AST support for GNU "typeof".
Many small changes to lot's of files.
Still some FIXME's, however the basic support is in place.

llvm-svn: 40631
2007-07-31 12:34:36 +00:00
Chris Lattner fedeaa3045 Don't use canonical type for sema here. In
void func() {
typedef int foo;
foo *Y;
**Y; // error
}

we now get:
indirection requires pointer operand ('foo' invalid)
instead of:
indirection requires pointer operand ('int' invalid)

llvm-svn: 40597
2007-07-30 18:53:26 +00:00
Steve Naroff 0d595ca0bb Finish up semantic analysis for vector components.
llvm-svn: 40584
2007-07-30 03:29:09 +00:00
Steve Naroff ddf5a1d7a6 Implement pretty diagnostics when doing on-the-fly vector sizing (for vector component access).
For example, before this commit, the following diagnostics would be emitted...

ocu.c:49:12: error: incompatible types assigning 'float  __attribute__((ocu_vector_type(3)))' to 'float4'
    vec4_2 = vec4.rgb; // shorten
    ~~~~~~ ^ ~~~~~~~~
ocu.c:51:7: error: incompatible types assigning 'float  __attribute__((ocu_vector_type(2)))' to 'float'
    f = vec2.xx; // shorten
    ~ ^ ~~~~~~~

Now, the diagnostics look as you would expect...

ocu.c:49:12: error: incompatible types assigning 'float3' to 'float4'
    vec4_2 = vec4.rgb; // shorten
    ~~~~~~ ^ ~~~~~~~~
ocu.c:51:7: error: incompatible types assigning 'float2' to 'float'
    f = vec2.xx; // shorten
    ~ ^ ~~~~~~~

llvm-svn: 40579
2007-07-29 16:33:31 +00:00
Steve Naroff f7a5da17d9 Added a new expression, OCUVectorComponent.
llvm-svn: 40577
2007-07-28 23:10:27 +00:00
Steve Naroff f8fd09e22b Implement syntax/semantic analysis for OCU Vector Components.
Next step, AST support...

llvm-svn: 40568
2007-07-27 22:15:19 +00:00
Steve Naroff 49ab97761b Fix the following bogus diagnostic...reported by Jeroen.
#include <stdio.h>

int
main(void) {
        int test = 0;

        printf("Type is %s\n", (test >= 1 ? "short" : "char"));

        return (0);
}

It comes up with a diagnostic that's misleading upon first read.

t.c:7:36: error: incompatible operand types ('char *' and 'char *')
        printf("Type is %s\n", (test >= 1 ? "short" : "char"));
                                          ^ ~~~~~~~   ~~~~~~
1 diagnostic generated.

llvm-svn: 40526
2007-07-26 14:35:56 +00:00
Steve Naroff 185616f293 Various improvements to Sema::ParseMemberReferenceExpr().
- Added source range support to Diag's.
- Used the new type predicate API to remove dealing with the canonical
type explicitly.
- Added Type::isRecordType().
- Removed some casts.
- Removed a const qualifier from RecordType::getDecl(). 

llvm-svn: 40508
2007-07-26 03:11:44 +00:00
Steve Naroff b8af1c2bf6 - Fix commit in Parser.h (patch by Kevin Andre).
- Add comment and minor cleanup to yesterday's fix to ParseCallExpr().

llvm-svn: 40492
2007-07-25 20:45:33 +00:00
Chris Lattner 02c0439a44 Fix a couple of bugs, add some new cool stuff.
1. Fix a todo in Parser::ParseTag, to recover better.  On code like
   that in test/Sema/decl-invalid.c it causes us to return a single
   error instead of multiple.
2. Fix an error in Sema::ParseDeclarator, where it would crash if the
   declarator didn't have an identifier.  Instead, diagnose the problem.
3. Start adding infrastructure to track the range of locations covered
   by a declspec or declarator.  This is mostly implemented for declspec,
   but could be improved, it is missing for declarator.

Thanks to Neil for pointing out this crash.

llvm-svn: 40482
2007-07-25 00:24:17 +00:00
Steve Naroff 44fd8ff400 Fix Sema::ParseCallExpr()...it wasn't doing the default array/function promotions on it's argument types.
This resulted in the following errors when compiling promote_types_in_proto.c test...

[dylan:~/llvm/tools/clang] admin% ../../Debug/bin/clang test/Parser/promote_types_in_proto.c 
test/Parser/promote_types_in_proto.c:7:24: error: incompatible types passing 'char *[]' to function expecting 'char *const []'
        arrayPromotion(argv);
        ~~~~~~~~~~~~~~ ^~~~
test/Parser/promote_types_in_proto.c:8:27: error: incompatible types passing 'void (char *const [])' to function expecting 'void (char *const [])'
        functionPromotion(arrayPromotion);
        ~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~
2 diagnostics generated.

When fixing this, noticed that both ParseCallExpr() and ParseReturnStmt() were prematurely comparing types for
equivalence. This is incorrect (since the expr. promotions haven't been done yet). To fix this, I moved the
check "down" to Sema::CheckAssignmentConstraints().

I also converted Type::isArrayType() to the modern API (since I needed it). Still more Type predicates to 
convert.

llvm-svn: 40475
2007-07-24 21:46:40 +00:00
Chris Lattner 366727fca1 implement ast building and trivial semantic analysis of stmt exprs.
This implements test/Sema/stmt_exprs.c

llvm-svn: 40465
2007-07-24 16:58:17 +00:00
Chris Lattner 54f4d2bd57 correctly verify that default and case are in a switchstmt,
this fixes test/Sema/switch.c.

llvm-svn: 40438
2007-07-23 17:05:23 +00:00
Anders Carlsson 51873c22d8 Refactor switch analysis to make it possible to detect duplicate case values
llvm-svn: 40388
2007-07-22 07:07:56 +00:00
Chris Lattner e386fab8ac recover from void argument types more nicely.
llvm-svn: 40169
2007-07-21 05:30:18 +00:00
Chris Lattner 26a1b3c6f7 better wording for an error, suggested by Neil.
llvm-svn: 40163
2007-07-21 05:26:43 +00:00
Anders Carlsson 625bfc8716 Implement code generation for __func__, __FUNCTION__ and __PRETTY_FUNCTION__
llvm-svn: 40162
2007-07-21 05:21:51 +00:00
Chris Lattner 5abb82c353 improve and simplify error recovery for calls, fix a crash when diagnosing
invalid arguments.

llvm-svn: 40161
2007-07-21 05:18:12 +00:00
Chris Lattner bb0ab46fd8 fix a warning on some compilers
llvm-svn: 40139
2007-07-21 04:57:45 +00:00
Chris Lattner a6f5ab5425 Fix off-by-one error when emitting diagnostics. Also, make diagnostic
a bit nicer for people who pass lots of extra arguments to calls by 
selecting them all instead of just the first one:

arg-duplicate.c:13:13: error: too many arguments to function
  f3 (1, 1, 2, 3, 4);   // expected-error {{too many arguments to function}}
            ^~~~~~~

This implements test/Sema/arg-duplicate.c, thanks to Neil for pointing
out this crash.

llvm-svn: 40136
2007-07-21 03:09:58 +00:00
Chris Lattner 38dbdb2c9c move some casts up to the entry of the function for clarity.
llvm-svn: 40135
2007-07-21 03:03:59 +00:00
Chris Lattner 3940737edf Two fixes:
1) fix a crash on test/Sema/default.c by making
   sure that the switch scope is non-null.
2) if there is an error sema'ing a default or case stmt,
   make sure to return the substmt up, so that the error
   recovery code has more acurate info to continue with.

llvm-svn: 40134
2007-07-21 03:00:26 +00:00
Chris Lattner 146762e7a4 At one point there were going to be lexer and parser tokens.
Since that point is now long gone, we should rename LexerToken to
Token, as it is the only kind of token we have.

llvm-svn: 40105
2007-07-20 16:59:19 +00:00
Steve Naroff 57eb2c5f58 Finish fixing crasher with compound literals.
We still need to do sematic analysis (and implement initializers), however this 
should complete the parsing & ast building for compound literals.

llvm-svn: 40067
2007-07-19 21:32:11 +00:00
Steve Naroff fbd098332c Work towards fixing crasher with compound literals...
Before this commit, we crashed in ParseBinOp...

[dylan:~/llvm/tools/clang] admin% ../../Debug/bin/clang -parse-ast-check compound_literal.c
SemaExpr.cpp:1298: failed assertion `(rhs != 0) && "ParseBinOp(): missing right expression"'

With this commit, we still crash in the newly added action ParseCompoundLiteral (which is progress:-)

[dylan:~/llvm/tools/clang] admin% ../../Debug/bin/clang -parse-ast-check compound_literal.c
SemaExpr.cpp:478: failed assertion `(Op != 0) && "ParseCompoundLiteral(): missing expression"'

The crash go away once the actions return AST nodes. I will do this in a separate commit.

llvm-svn: 40032
2007-07-19 01:06:55 +00:00
Chris Lattner 5fbd7e0264 Fix a crasher that Neil reported: Sema::GetTypeForDeclarator should never
return a null type.  If there is an error parsing the type, pick a new type
for error recovery purposes.

llvm-svn: 40029
2007-07-19 00:42:40 +00:00
Steve Naroff 91fcddb5cc First round of extended vector support. Here is an overview...
- added ocu_vector_type attribute, Sema::HandleOCUVectorTypeAttribute(). 
- added new AST node, OCUVectorType, a subclass of VectorType.
- added ASTContext::getOCUVectorType.
- changed ASTContext::convertToVectorType() to ASTContext::getVectorType(). This is 
unrelated to extended vectors, however I was in the vicinity and it was on my todo list.
Added a FIXME to Sema::HandleVectorTypeAttribute to deal with converting complex types.

llvm-svn: 40007
2007-07-18 18:00:27 +00:00
Chris Lattner bd27073f2a Cast to void is valid, patch by Benoit Boissinot
llvm-svn: 40003
2007-07-18 16:00:06 +00:00
Chris Lattner 46eeb22fec Add initial switch stmt support, patch by Anders Carlsson!
llvm-svn: 39989
2007-07-18 02:28:47 +00:00
Bill Wendling 89ba70eba6 Use the correct method for getting the ReferenceType from a QualType.
llvm-svn: 39960
2007-07-17 05:09:22 +00:00
Bill Wendling 354fb2678d Change dyn_cast for reference types to be more like pointers and not need the canonical type. Also fix so that we're not expecting a return value from a void function
llvm-svn: 39954
2007-07-17 04:16:47 +00:00
Bill Wendling dfc810717e Fix references:
According to the spec (C++ 5p6[expr]), we need to adjust "T&" to
    "T" before further analysis. We do this via the "implicit cast"
    thingy.

llvm-svn: 39953
2007-07-17 03:52:31 +00:00
Steve Naroff dbd9e89334 Convert UsualArithmeticConversions to return "void". Now that we synthesize ImplicitCastExpr's,
there is no compelling need to return the converted type. If both expression type's are arithmetic, then
both types will always be the same. If they aren't (for pointer/int types, say), then the
types will be different. The client is responsible for distinguishing...

llvm-svn: 39947
2007-07-17 00:58:39 +00:00
Steve Naroff 1a2cf6b3b3 Implement semantic analysis for the cast operator.
llvm-svn: 39943
2007-07-16 23:25:18 +00:00
Steve Naroff 94a5acac9b Remove the 2 QualType references to method UsualArithmeticConversions. Last week, I added these
to quickly fix a regression. Avoiding them entirely is a much cleaner solution. Clients of 
UsualArithmeticConversions should simply call getType() on the expression to get the
converted type. In practice, only a small number of routines care about this.

llvm-svn: 39934
2007-07-16 22:23:01 +00:00
Steve Naroff 3109001c19 Change DefaultFunctionArrayConversions and UsualUnaryConversions to return void. The caller
needs to query the expression for the type. Since both these functions guarantee the expression 
contains a valid type, removed old/vacuous asserts (from code calling both of these routines).

llvm-svn: 39930
2007-07-16 21:54:35 +00:00