Commit Graph

17 Commits

Author SHA1 Message Date
Eli Friedman 9ad7244f5b Check that the return type for function definitions is complete.
llvm-svn: 66027
2009-03-04 07:30:59 +00:00
Douglas Gregor e62c0a45dd Improve merging of function declarations. Specifically:
- When we are declaring a function in local scope, we can merge with
    a visible declaration from an outer scope if that declaration
    refers to an entity with linkage. This behavior now works in C++
    and properly ignores entities without linkage.
  - Diagnose the use of "static" on a function declaration in local
    scope.
  - Diagnose the declaration of a static function after a non-static
    declaration of the same function.
  - Propagate the storage specifier to a function declaration from a
    prior declaration (PR3425)
  - Don't name-mangle "main"

llvm-svn: 65360
2009-02-24 01:23:02 +00:00
Douglas Gregor 4ab311dc30 Note the Radar number that corresponds to PR3137
llvm-svn: 63754
2009-02-04 19:10:27 +00:00
Eli Friedman cddff7fd62 Test for PR3137.
llvm-svn: 63749
2009-02-04 18:50:00 +00:00
Douglas Gregor 9aa8904a46 Handle any undeclared parameters in a K&R-style function with a
special action, inside function prototype scope. This avoids confusion
when we try to inject these parameters into the scope of the function
body before the function itself has been added to the surrounding
scope. Fixes <rdar://problem/6097326>.

llvm-svn: 62849
2009-01-23 16:23:13 +00:00
Chris Lattner 27e5beff70 Merge function-return.c into function.c
Fix PR2790 by making a warning an EXTWARN instead of EXTENSION.
Add a new EXTENSION warning for "return (some void expression);"

llvm-svn: 61187
2008-12-18 02:01:17 +00:00
Chris Lattner 3d72297909 diagnose C99 6.9.1p5, C arguments in definitions that are lacking
a name.  This implements PR3208.

llvm-svn: 61127
2008-12-17 07:32:46 +00:00
Chris Lattner 0369c57ac6 Make all the 'redefinition' diagnostics more consistent, and make the
"previously defined here" diagnostics all notes.

llvm-svn: 59920
2008-11-23 23:12:31 +00:00
Chris Lattner 9d51f2b9d4 Fix handling of implicit int, resolving PR2012 and reverting (and
subsuming) my patch for PR1999.

llvm-svn: 49251
2008-04-05 06:32:51 +00:00
Chris Lattner b080ed504e Fix PR2042. One remaining issue: we don't currently diagnose
int foobar(int);
 int foobar() {}

which requires ifdef'ing out a testcase in predefined-function.c.

llvm-svn: 47236
2008-02-17 19:31:09 +00:00
Eli Friedman 78e47634b2 Get rid of outdated code that masks type errors. Fixes PR2036.
llvm-svn: 47154
2008-02-15 06:56:02 +00:00
Chris Lattner 7b8134f5c6 Fix PR1999, by emitting a hard error only if an argument declarator is completely
missing.  Otherwise, it is an implicit int case, which is valid in c90 and invalid 
elsewhere, but accepted as an extension.

llvm-svn: 46938
2008-02-10 23:08:00 +00:00
Chris Lattner 4973fb9273 Fix a bogus test
llvm-svn: 46602
2008-01-31 06:06:29 +00:00
Steve Naroff ddb1dd8c5f Tighten up ASTContext::typesAreCompatible()...it needs to make sure the qualifiers match. The comment and C99 citation for this routine were correct...the code needed to conform to the comment/spec. This fixes the test added below.
Tightening up this routine forced tweaks to Sema::CheckSubtractionOperands() and Sema::CheckCompareOperands(). For example, they both need to operate on the unqualified pointee...

llvm-svn: 46522
2008-01-29 18:58:14 +00:00
Steve Naroff f06b5ba047 Fix bz1950. ASTContext::functionTypesAreCompatible() needs to operate on the unqualified parameter types (per C99 6.7.5.3p15).
llvm-svn: 46472
2008-01-29 00:15:50 +00:00
Chris Lattner fd65291aa3 Fix ASTContext::typesAreCompatible when analyzing a function type with
proto and function type without proto.  It would never call 
'functionTypesAreCompatible' because they have different type classes.

llvm-svn: 45952
2008-01-14 05:45:46 +00:00
Chris Lattner 4f20351142 When promoting array to pointer for argument, don't lose type qualifiers.
llvm-svn: 45510
2008-01-02 22:50:48 +00:00