Commit Graph

28 Commits

Author SHA1 Message Date
Richard Smith ab506adf7d Switch C compilations to C11 by default.
This is long-since overdue, and matches GCC 5.0. This should also be
backwards-compatible, because we already supported all of C11 as an extension
in C99 mode.

llvm-svn: 220244
2014-10-20 23:26:58 +00:00
Rafael Espindola 925213b0fa Add 'not' to commands that are expected to fail.
This is at least good documentation, but also opens the possibility of
using pipefail.

llvm-svn: 185652
2013-07-04 16:16:58 +00:00
Michael Ilseman 82a2a3d8f5 Repeat some #line directive tests for the GNU line marker directive.
llvm-svn: 179142
2013-04-10 01:41:19 +00:00
Michael Ilseman e910cc8e07 Improve the diagnostics of the number-reading preprocessor directives.
The GNU line marker directive was sharing code with the #line directive, but some of the warnings/errors were reporting as #line directive diagnostics in both cases.

Previously:
#line 11foo1   ==> "#line directive requires a simple digit sequence"
# 11foo1       ==> "#line directive requires a simple digit sequence"

Now, we get:
#line 11foo1   ==> "#line directive requires a simple digit sequence"
# 11foo1       ==> "GNU line marker directive requires a simple digit sequence"

llvm-svn: 179139
2013-04-10 01:04:18 +00:00
Jordan Rose b13eb8dca5 Allow -verify directives to be filtered by preprocessing.
This is accomplished by making VerifyDiagnosticsConsumer a CommentHandler,
which then only reads the -verify directives that are actually in live
blocks of code. It also makes it simpler to handle -verify directives that
appear in header files, though we still have to manually reparse some files
depending on how they are generated.

This requires some test changes. In particular, all PCH tests now have their
-verify directives outside the "header" portion of the file, using the @line
syntax added in r159978. Other tests have been modified mostly to make it
clear what is being tested, and to prevent polluting the expected output with
the directives themselves.

Patch by Andy Gibbs! (with slight modifications)

The new Frontend/verify-* tests exercise the functionality of this commit,
as well as r159978, r159979, and r160053 (Andy's other -verify enhancements).

llvm-svn: 160068
2012-07-11 19:58:23 +00:00
Fariborz Jahanian 0638c15a52 preprocessing: gcc supports #line 0. So, treat this
as a gcc supported extension with usual treatment
with -pedantic (warn) and -pedantic-errors (error).
// rdar://11550996

llvm-svn: 159226
2012-06-26 21:19:20 +00:00
Ted Kremenek 7f4bd16b53 Per discussion on cfe-dev, remove '#error' and '#warning' from diagnostic text.
llvm-svn: 149566
2012-02-02 00:16:13 +00:00
Douglas Gregor 7363fb05fd C11 allows typedefs to be redefined. Implement this in C11 mode, and
downgrade the default-error warning to an ExtWarn in
C90/99. <rdar://problem/10668057>

llvm-svn: 147925
2012-01-11 04:25:01 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
- 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
Daniel Dunbar 7427fe28dc Remove unnecessary -fms-extensions=0 from tests (this command line syntax is going away).
llvm-svn: 90066
2009-11-29 09:31:53 +00:00
Daniel Dunbar 8b57697954 Eliminate &&s in tests.
- 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious.

llvm-svn: 86430
2009-11-08 01:45:36 +00:00
John Thompson ec87bb5c46 Disabling some MS extensions which cause these tests to fail
llvm-svn: 85236
2009-10-27 14:31:53 +00:00
Chris Lattner 9a84589671 Change our silencing of C typedef redefinition handling to what we had
before r69391: typedef redefinition is an error by default, but if
*either* the old or new definition are from a system header, we silence
it.

llvm-svn: 70177
2009-04-27 01:46:12 +00:00
Chris Lattner 35cfb0544a make -Wtypedef-redefinition an extwarn instead of defaulting
to error, doing this breaks too many programs (e.g. Adium).

llvm-svn: 70170
2009-04-27 00:41:01 +00:00
Chris Lattner bf78da7b36 Fix PR3917: the location of a #line directive is the location of the first _.
llvm-svn: 69485
2009-04-18 22:29:33 +00:00
Chris Lattner d66f172ab1 more fun with line markers: the digit string is required to be interpreted
as decimal, even if it starts with 0.  Also, since things like 0x1 are
completely illegal, don't even bother using numericliteralparser for them.

llvm-svn: 69454
2009-04-18 18:35:15 +00:00
Chris Lattner 5ca5d40cf4 second half of PR3940: #line requires simple digit sequence.
llvm-svn: 69422
2009-04-18 06:38:24 +00:00
Chris Lattner ca556cb3e3 implement PR3940: #line numbers not fully checked
llvm-svn: 69403
2009-04-17 23:37:49 +00:00
Chris Lattner 0003c27f5e #line is allowed to have macros that expand to nothing after them.
llvm-svn: 69401
2009-04-17 23:30:53 +00:00
Chris Lattner 2581fc3fa9 tweak redefinition of a typedef a bit to fix a couple of problems:
1. We had logic in sema to decide whether or not to emit the error
   based on manually checking whether in a system header file.
2. we were allowing redefinitions of typedefs in class scope in C++
   if in header file.
3. there was no way to force typedef redefinitions to be accepted
   by the C compiler, which annoys me when stripping linemarkers out
   of .i files.

The fix is to split the C++ class typedef redefinition path from the
C path, and change the C path to be a warning that normally maps to
error.  This causes it to properly be ignored in system headers, 
etc. and gives us a way to control it.  Passing 
-Wtypedef-redefinition now turns the error into a warning.

One behavior change is that we now diagnose cases where you redefine
a typedef in your .c file that was defined in a header file.  This
seems like reasonable behavior, and the diagnostic now indicates that
it can be controlled with -Wtypedef-redefinition.

llvm-svn: 69391
2009-04-17 22:04:20 +00:00
Daniel Dunbar a45cf5b6b0 Rename clang to clang-cc.
Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
2009-03-24 02:24:46 +00:00
Chris Lattner 1c967784f3 Implement handling of file entry/exit notifications from GNU
line markers, including maintenance of the virtual include stack.

For something like this:

# 42 "bar.c" 1
# 142 "bar2.c" 1

#warning zappa
# 92 "bar.c" 2
#warning gonzo
# 102 "foo.c" 2
#warning bonkta


we now produce these three warnings:

:
In file included from foo.c:3:
In file included from bar.c:42:
bar2.c:143:2: warning: #warning zappa
#warning zappa
 ^

:
In file included from foo.c:3:
bar.c:92:2: warning: #warning gonzo
#warning gonzo
 ^

:
foo.c:102:2: warning: #warning bonkta
#warning bonkta
 ^

llvm-svn: 63722
2009-02-04 06:25:26 +00:00
Chris Lattner e7bfe52046 # 42 doesn't change system header state either, add test.
llvm-svn: 63721
2009-02-04 05:36:14 +00:00
Chris Lattner 95d9c5e778 make getFileCharacteristic linetable aware. line markers that
play around with the 'is system header' bit now function correctly.

llvm-svn: 63720
2009-02-04 05:33:01 +00:00
Chris Lattner 7941b81498 Add simple #line directive test.
llvm-svn: 63713
2009-02-04 02:17:09 +00:00
Chris Lattner 76e689636b add parsing and constraint enforcement for GNU line marker directives.
llvm-svn: 63003
2009-01-26 06:19:46 +00:00
Chris Lattner 5a8057bc18 add another sanity test.
llvm-svn: 63001
2009-01-26 05:44:13 +00:00
Chris Lattner 100c65e810 parse and enforce required constraints on #line directives. Right now
we just discard them.

llvm-svn: 62999
2009-01-26 05:29:08 +00:00