4101621dd7
Sema: Cleanup and simplify anonymous union diagnostics
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The determination of which diagnostics would be issued for certain
anonymous unions started to get a little ridiculous. Clean this up by
inverting the condition-tree's logic from dialect -> issue to
issue -> diagnostic.
As part of this cleanup, move ext_c99_flexible_array_member from
DiagnosticParseKinds.td to DiagnosticSemaKinds.td because it's driven by
Sema, not Parse.
Also, the liberty was taken to edit ext_c99_flexible_array_member to
match other, similar, diagnostics.
llvm-svn: 193919
2013-11-02 10:38:05 +00:00
77c2754d58
Sema: Flexible array members were introduced in C99, diagnose their use in C++
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The declaration of a flexible array member was correctly diagnosed as an
extension in C89 mode but not in C++.
llvm-svn: 193918
2013-11-02 09:22:44 +00:00
c7cb48c4b9
Fixed implementation of C89 6.5.7 p3.
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Warning should be emitted only for InitListExpr nodes.
llvm-svn: 186859
2013-07-22 19:10:20 +00:00
1aac546d31
Implement the part of C89 6.5.7 p3 requiring a constant initializer list
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when initializing aggregate/union types, no matter if static or not.
llvm-svn: 186817
2013-07-22 10:58:26 +00:00
1cd2305703
Change the wording of the extension warning from
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> 'long long' is an extension when C99 mode is not enabled
to
> 'long long' is a C++11 extension
while compiling in C++98 mode.
llvm-svn: 164545
2012-09-24 18:19:21 +00:00
c1f0d5b873
Implement C90 pedantic warning for duplicate declaration specifiers which are duplicated via a typedef. Patch by Tim Northover.
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llvm-svn: 154136
2012-04-05 22:47:34 +00:00
07518f249f
Warn on flexible array members when in C89 mode, with -pedantic.
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This fixes PR 4307.
Patch by Eitan Adler!
llvm-svn: 152918
2012-03-16 12:15:37 +00:00
5ed3caf2e3
Warn about non-int main() results in GNU C mode instead of erroring.
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Based on a patch by Vasiliy Korchagin!
llvm-svn: 150500
2012-02-14 19:50:52 +00:00
e434590bd9
Change the diagnostics which said 'accepted as an extension' to instead say
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'is an extension'. The former is inappropriate and confusing when building with
-Werror/-pedantic-errors.
llvm-svn: 147357
2011-12-29 21:57:33 +00:00
70a1324428
Only do typo correction for implicit function decls when
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they are treated as errors.
Doing typo correction when these are just warnings slows down the
compilation of source which deliberately uses implicit function
declarations.
llvm-svn: 146153
2011-12-08 15:56:07 +00:00
2fb8b91f6f
Suggest typo corrections for implicit function declarations.
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A mistyped function call becomes an inmplicit function declaration in C.
Suggest typo correction when one can be found.
llvm-svn: 145930
2011-12-06 09:46:12 +00:00
ea7b85bfe0
PR4304: Add warning for designators in strict c89 mode.
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llvm-svn: 130117
2011-04-24 22:14:22 +00:00
959d5a0cbd
Implement support for variable length arrays in C++. VLAs are limited
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in several important ways:
- VLAs of non-POD types are not permitted.
- VLAs cannot be used in conjunction with C++ templates.
These restrictions are intended to keep VLAs out of the parts of the
C++ type system where they cause the most trouble. Fixes PR5678 and
<rdar://problem/8013618>.
llvm-svn: 104443
2010-05-22 16:17:30 +00:00
8fbe78f6fc
Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
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- This is designed to make it obvious that %clang_cc1 is a "test variable"
which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
can be useful to redefine what gets run as 'clang -cc1' (for example, to set
a default target).
llvm-svn: 91446
2009-12-15 20:14:24 +00:00
11289f4280
Remove tabs, and whitespace cleanups.
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llvm-svn: 81346
2009-09-09 15:08:12 +00:00
753d120975
Prep for new warning.
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llvm-svn: 76709
2009-07-22 00:43:08 +00:00
4058a842e6
Fix a minor edge case in C89 mode related to the definition of a
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"function designator".
(This causes a minor glitch in the
diagnostics for C++ member pointers, but we weren't printing the
right diagnostic there anyway.)
llvm-svn: 70307
2009-04-28 17:59:09 +00:00
ab2784f2c1
Fix for PR4074: allow subscripting non-lvalue arrays in C90 mode.
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I wasn't originally going to use this approach, but cases like
test/Sema/expr-comma.c make things difficult.
llvm-svn: 70096
2009-04-25 23:46:54 +00:00
a45cf5b6b0
Rename clang to clang-cc.
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Tests and drivers updated, still need to shuffle dirs.
llvm-svn: 67602
2009-03-24 02:24:46 +00:00
b6ec4e75ad
Clean up the C89/C++ warnings about C99 array features to not
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emit duplicate diags (some in parser and some in sema) and to
warn about use of typequals in array sizes. This implements
PR2759.
llvm-svn: 61197
2008-12-18 06:50:14 +00:00
3d72297909
diagnose C99 6.9.1p5, C arguments in definitions that are lacking
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a name. This implements PR3208.
llvm-svn: 61127
2008-12-17 07:32:46 +00:00
0e91b41902
typedef void T;
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void f(T);
is only invalid in C++ mode, not C89 mode.
llvm-svn: 49460
2008-04-10 02:26:16 +00:00
58258246ec
Several improvements from Doug Gregor related to default
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argument handling. I'll fix up the c89 (void) thing next.
llvm-svn: 49459
2008-04-10 02:22:51 +00:00
9d51f2b9d4
Fix handling of implicit int, resolving PR2012 and reverting (and
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subsuming) my patch for PR1999.
llvm-svn: 49251
2008-04-05 06:32:51 +00:00
94fc8063b4
Step #1 to fixing PR2012: c89 allows declspecs to be completely
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missing from function definitions only. If we see a function
definiton with missing declspecs, just fudge in an int.
llvm-svn: 49250
2008-04-05 05:52:15 +00:00
d2a02fe840
fix the second half of PR2041: __restrict is ok in c90 mode, even if
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restrict isn't.
llvm-svn: 47316
2008-02-19 06:46:10 +00:00
287c734075
Fix PR2041: restrict is not a keyword in c90.
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llvm-svn: 47160
2008-02-15 18:02:59 +00:00
7b8134f5c6
Fix PR1999, by emitting a hard error only if an argument declarator is completely
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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
5e4c75f4ef
rename -parse-ast-print to -ast-print
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rename -parse-ast-dump to -ast-dump
remove -parse-ast, which is redundant with -fsyntax-only
llvm-svn: 42852
2007-10-11 00:18:28 +00:00
0883fd5817
Removed option "-parse-ast-check" from clang driver. This is now implemented
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using "-parse-ast -verify".
Updated all test cases (using a sed script) that invoked -parse-ast-check to
now use -parse-ast -verify.
Fixed a bug where using "-verify" instead of "-parse-ast-check" would not
correctly create the DiagClient needed to accumulate diagnostics.
llvm-svn: 42365
2007-09-26 20:14:22 +00:00
fec2519b4b
-C mode doesn't return comments on "#" lines, so the diag checker doesn't pick them up.
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Test this the hard way.
llvm-svn: 41605
2007-08-30 06:38:49 +00:00
ac582c5ecb
Ensure we diagnose long long literals in C90 mode.
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llvm-svn: 41581
2007-08-29 22:00:19 +00:00
35da3e29dd
extwarn about VLAs in C89 mode.
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llvm-svn: 41545
2007-08-28 16:54:00 +00:00
f2c338b7d1
warn about long long when in c89 mode.
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llvm-svn: 41543
2007-08-28 16:40:32 +00:00
d864daf5c6
extwarn about decls intermixed with code in c89 mode.
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llvm-svn: 41477
2007-08-27 04:29:41 +00:00
David Majnemer