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35990 Commits

Author SHA1 Message Date
Chris Lattner 8a241f9359 Teach Type::is[un]SignedIntegerType about enum decls. This allows the code generator 
to emit signed comparisons when needed for enum decl references.  This implements
test/CodeGen/enum.c.  I think enums should be good now.

llvm-svn: 41572
 2007-08-29 17:48:46 +00:00
Chris Lattner 3a370bf33f Implement GCC-compatible layout and typing of enum constants and enum decl. 
A small bit of codegen work is still pending.

llvm-svn: 41571
 2007-08-29 17:31:48 +00:00
Chris Lattner 959bcdcae6 add some accessors 
llvm-svn: 41570
 2007-08-29 17:23:37 +00:00
Raul Herbster 4c5fac3977 New contributor added 
llvm-svn: 41569
 2007-08-29 16:51:52 +00:00
Tanya Lattner bca16c80ed Updating configure script to enable MIPS. 
llvm-svn: 41568
 2007-08-29 16:38:16 +00:00
Chris Lattner 2198ea9097 Silence implicit 64->32-bit conversion warnings. 
llvm-svn: 41567
 2007-08-29 16:32:50 +00:00
Chris Lattner 2408d769eb getMinSignedBits needs to take into consider the sign bit when the value is positive. 
llvm-svn: 41566
 2007-08-29 16:21:18 +00:00
Chris Lattner 8d22b4e18a update these 
llvm-svn: 41565
 2007-08-29 16:15:23 +00:00
Chris Lattner c92bc4ce2f Fix a null dereference Neil ran into 
llvm-svn: 41564
 2007-08-29 16:03:41 +00:00
Chris Lattner fb38f274ff remove some ugly code now that implicit defs are being generated in this case, thanks Steve! 
llvm-svn: 41560
 2007-08-29 06:38:44 +00:00
Steve Naroff c5e5027b86 Re-teach Expr::isNullPointerConstant() about ImplicitCastExpr:-) 
This fixes the following bug submitted by Neil...

const char *f (void) { return 0; }

...which would incorrectly warn with -pedantic enabled.

llvm-svn: 41559
 2007-08-29 00:00:02 +00:00
Steve Naroff 0b66158248 Implement default argument promotions (for old-style function calls and variable argument lists). 
[dylan:~/llvm/tools/clang] admin% cat x.c

int printf(const char *, ...);

int oldschool();

void foo() {
  float f; 
  short i;
  printf("foo %f", 1.0f);

  oldschool(f,i);
}

[dylan:~/llvm/tools/clang] admin% ../../Debug/bin/clang x.c -parse-ast-dump

int printf(char const *, ...);

int oldschool();

void foo()
(CompoundStmt 0x3105f00
  (DeclStmt 0x3105ba0
    0x3105ce0 "float f")
  (DeclStmt 0x3105c90
    0x3105d10 "short i")
  (CallExpr 0x3105df0 'int'
    (ImplicitCastExpr 0x3105dc0 'int (*)(char const *, ...)'
      (DeclRefExpr 0x3105c20 'int (char const *, ...)' Decl='printf' 0x3105bd0))
    (ImplicitCastExpr 0x3105dd0 'char const *'
      (StringLiteral 0x3105d60 'char *' "foo %f"))
    (ImplicitCastExpr 0x3105de0 'double'
      (FloatingLiteral 0x3105d80 'float' 1.000000)))
  (CallExpr 0x3105ed0 'int'
    (ImplicitCastExpr 0x3105ea0 'int (*)()'
      (DeclRefExpr 0x3105e20 'int ()' Decl='oldschool' 0x3105c40))
    (ImplicitCastExpr 0x3105eb0 'double'
      (DeclRefExpr 0x3105e40 'float' Decl='f' 0x3105ce0))
    (ImplicitCastExpr 0x3105ec0 'int'
      (DeclRefExpr 0x3105e60 'short' Decl='i' 0x3105d10))))

llvm-svn: 41558
 2007-08-28 23:30:39 +00:00
Steve Naroff 1d8ce44aa4 Teach Expr::isNullPointerConstant() about ImplicitCastExpr's. 
This fixes the following (recent) regression noticed by Keith Bauer (thanks!).

void func(void *a);

main() {
  void *p;
  p = 0;
  func(0);
}

...which now works as you would expect.

llvm-svn: 41557
 2007-08-28 21:20:34 +00:00
Dan Gohman 81b62e1218 Add an option, -view-sunit-dags, for viewing the actual SUnit DAGs used by 
scheduling.

llvm-svn: 41556
 2007-08-28 20:32:58 +00:00
Steve Naroff f93b6726b1 Finish converting decls over to the new invalid decl API. 
Also removed an old FIXME (FIXME: "auto func();" passes through...).

llvm-svn: 41555
 2007-08-28 20:14:24 +00:00
Ted Kremenek eda180e239 Added support for indirect-gotos (GCC extension) in source-level CFGs. 
This involves the construction of a specialized "dispatch" block that
all basic blocks containing indirect gotos unconditionally transfer
control-flow to.  The successors of the dispatch block has as its successors
all of the blocks containing labels whose address was taken somewhere in
the function.

llvm-svn: 41554
 2007-08-28 19:26:49 +00:00
Chuck Rose III e87935b379 Update win32 VStudio project files to keep pace with recently added and deleted files 
llvm-svn: 41553
 2007-08-28 18:59:02 +00:00
Steve Naroff cf871f59bf Move the "invalid decl" idiom up to Decl (where we have some bits to steal:-) 
Converted ParmVarDecl, FileVarDecl, BlockVarDecl, and Sema::ParseIdentifierExpr() to use the idiom.

Updated array-constraint.c to make sure we no longer get "undeclared identifier" errors:-)

llvm-svn: 41552
 2007-08-28 18:45:29 +00:00
Chris Lattner 24b51ff752 Emit a slightly better warning for unused values for unary and binary operators: 
t2.c:3:18: warning: expression result unused
     x = ++x, ++y, y+2;
     ~~~~~~~~~~~~^ ~~~

llvm-svn: 41551
 2007-08-28 18:40:30 +00:00
Chris Lattner c11005faa1 add a sourcelocation to binary operator to keep track of the location of the operator. 
llvm-svn: 41550
 2007-08-28 18:36:55 +00:00
Ted Kremenek 105efce68f Added support for GCC-style statement expressions in source-level CFGs. 
llvm-svn: 41549
 2007-08-28 18:30:10 +00:00
Chris Lattner 1c1f932433 Change EnumDecl to store its corresponding integer type 
directly in it.  Remove TargetInfo::getEnumPolicy, as there is only
one policy that we support right now.

llvm-svn: 41548
 2007-08-28 18:24:31 +00:00
Ted Kremenek 25fb681907 Added support for comma expressions and DeclStmts which may have 
arbitrarily complex control-flow in their subexpressions.

llvm-svn: 41547
 2007-08-28 18:14:37 +00:00
Ted Kremenek e07a8cd7ff Fixed return-of-stack-address checker to correctly handle stack/global 
variables that have a pointer type, or arrays that contain pointers.

This fixes a crash on the following code:

int *h[3];

int **foo(int i)
{
   return &(h[i]);
}

This bug was reported by Keith Bauer (thanks!).

llvm-svn: 41546
 2007-08-28 17:02:55 +00:00
Chris Lattner 35da3e29dd extwarn about VLAs in C89 mode. 
llvm-svn: 41545
 2007-08-28 16:54:00 +00:00
Chris Lattner 8ed218afb9 c++'0x has long long also. 
llvm-svn: 41544
 2007-08-28 16:41:29 +00:00
Chris Lattner f2c338b7d1 warn about long long when in c89 mode. 
llvm-svn: 41543
 2007-08-28 16:40:32 +00:00
Steve Naroff 4ca5d5a9e8 Tweak declaration... 
llvm-svn: 41542
 2007-08-28 16:31:47 +00:00
Chris Lattner 613cef84b4 new testcase 
llvm-svn: 41541
 2007-08-28 16:20:14 +00:00
Ted Kremenek 91e8d2a974 Removed special-casing in CFG construction for ParenExprs. 
llvm-svn: 41540
 2007-08-28 16:18:58 +00:00
Evan Cheng a5b10b334f Recover most of the compile time regression due to recent live interval changes. 
1. Eliminate the costly live interval "swapping".
2. Change ValueNumberInfo container from SmallVector to std::vector. The former
   performs slowly when the vector size is very large.

llvm-svn: 41536
 2007-08-28 08:28:51 +00:00
Chris Lattner c4f6d0c5cf fix 80 col violation 
llvm-svn: 41533
 2007-08-28 06:17:15 +00:00
Chris Lattner b8a501ccf1 compute the required destination type for an enum, emitting various warnings. 
TODO: update the types of the constants and the enum.
llvm-svn: 41532
 2007-08-28 06:15:15 +00:00
Chris Lattner d0e7ed3f2c remove dead method. 
llvm-svn: 41531
 2007-08-28 05:56:37 +00:00
Chris Lattner bf478cbef2 add a diagnostic: 
t.c:1:12: warning: ISO C restricts enumerator values to range of 'int' (180388626432 is too large)
enum e {A, B = 42LL << 32, C = -4, D = 12456 };
           ^

llvm-svn: 41530
 2007-08-28 05:27:00 +00:00
Bruno Cardoso Lopes 43318839c9 Added method to get Mips register numbers 
Changed the stack frame layout, StackGrowsUp fits better to Mips strange stack.
Stack offset calculation bug fixed!

llvm-svn: 41529
 2007-08-28 05:13:42 +00:00
Chris Lattner 67933c0aae move a todo 
llvm-svn: 41528
 2007-08-28 05:10:31 +00:00
Bruno Cardoso Lopes 14033fb5cb Changed stack allocation On LowerFORMAL_ARGUMENTS. 
Added comments about new stack allocation.
Expand SelectCC for i32 results

llvm-svn: 41527
 2007-08-28 05:08:16 +00:00
Bruno Cardoso Lopes cfd1638e2d Mask directive completed with CalleeSave info 
Comments for Mips directives added.

llvm-svn: 41526
 2007-08-28 05:06:17 +00:00
Bruno Cardoso Lopes f55a785e56 Added methods to record SPOffsets from LowerFORMAL_ARGUMENTS 
llvm-svn: 41525
 2007-08-28 05:04:41 +00:00
Chris Lattner 39f920f35b now that all the infrastructure is in place, enforce C99 6.8.5p3. 
Note the FIXME: we need some way to mark a decl erroneous :)

llvm-svn: 41524
 2007-08-28 05:03:08 +00:00
Chris Lattner 773c0596b8 If the condition of a for statement is promoted, make sure the 
implicit cast gets linked back into the AST.

llvm-svn: 41523
 2007-08-28 04:55:47 +00:00
Chris Lattner 0e258b8518 Cut off crazy computation. This helps PR1622 slightly. 
llvm-svn: 41522
 2007-08-28 04:23:55 +00:00
Steve Naroff 7e6f7c25bf Implement more thoughful error recovery when dealing with bogus declarator types. 
For example, the following code was resulting in spurious warnings. This was the result of
Sema::GetTypeForDeclarator() synthesizing a type to hand back to the caller (in this case,
"int []", instead of "struct s[]", which is invalid).

struct s; 
struct s* t (struct s z[]) {   // expected-error {{array has incomplete element type}}
  return z;
}

Strategy: Flag the error in Declarator/DeclaratorChunk. This info is later stored in 
the ParmVarDecl. If the decl is referenced, Sema::ParseIdentifierExpr() will check if 
the type is invalid. If so, it quietly returns "true", without instantiating a DeclRefExpr.

This seems to work nicely. If Chris is happy with the approach, I will generalize this to
all VarDecls.

llvm-svn: 41521
 2007-08-28 03:03:08 +00:00
Ted Kremenek 12687ff9b8 Added support for short-circuit '&&' and '||' operators in source-level CFGs. 
llvm-svn: 41520
 2007-08-27 21:54:41 +00:00
Steve Naroff a042db2b80 Some minor aesthetic changes to the control flow. 
llvm-svn: 41517
 2007-08-27 21:43:43 +00:00
Devang Patel d2456a171d Use simpler test to filter loops. 
llvm-svn: 41516
 2007-08-27 21:34:31 +00:00
Steve Naroff e31313d792 Fix remaining bugs with complex/float promotions. 
llvm-svn: 41515
 2007-08-27 21:32:55 +00:00
Ted Kremenek 9e248870e5 Implemented support for ternary "?" operators in source-level CFGs. 
llvm-svn: 41514
 2007-08-27 21:27:44 +00:00
Chris Lattner 0515e4b26a Fix a few enum-related fixme's 
llvm-svn: 41513
 2007-08-27 21:16:18 +00:00