c9b97cc1da
Fix vector macros to correctly check argument types. <rdar://problem/10261670>
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llvm-svn: 143792
2011-11-05 06:08:06 +00:00
e9e20dd302
Constant expression evaluation: although we don't know whether a literal will
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be at the same address as another object, we do know it won't alias a null
pointer.
llvm-svn: 143674
2011-11-04 01:10:57 +00:00
055c970839
Add an option to emulate the strange Apple gcc behavior of #pragma pack.
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<rdar://problem/10374763>
llvm-svn: 143527
2011-11-02 01:53:16 +00:00
cecf184e64
When constant-folding, don't look at the initializer of a global const variable
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if it's marked as weak: that definition may not end up being used.
llvm-svn: 143496
2011-11-01 21:06:14 +00:00
dd78544d44
Refactoring and test for r143360. Support for array rvalue to pointer decay is
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needed for C++11, and will follow later.
llvm-svn: 143363
2011-10-31 20:57:44 +00:00
390cd49906
Fix assert on constant expression evaluation of floating point increment.
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llvm-svn: 143320
2011-10-30 23:17:09 +00:00
9c8d1c5c64
Don't crash if a GCC binary conditional is used in a constant expression on an
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integer-cast pointer value.
llvm-svn: 143299
2011-10-29 22:55:55 +00:00
472d495372
Fix assertion in constant expression evaluation. The LHS of a floating-point
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binary operator isn't an rvalue if it's an assignment operator.
llvm-svn: 143250
2011-10-28 23:26:52 +00:00
03cf7b70e0
Fix for PR9751 to change the behavior of -Wformat warnings. If the format
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string is part of the function call, then there is no difference. If the
format string is not, the warning will point to the call site and a note
will point to where the format string is.
Fix-it hints for strings are moved to the note if a note is emitted. This will
prevent changes to format strings that may be used in multiple places.
llvm-svn: 143168
2011-10-28 00:41:25 +00:00
27541dbe1a
Teach format string analysis that "%zu" means size_t.
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The code had it backwards, thinking size_t was signed, and using that for "%zd".
Also let the analysis get the types for (u)intmax_t while we are at it.
llvm-svn: 143099
2011-10-27 08:29:09 +00:00
3249a1e862
Do not warn when weak-import attribute is applied to enum
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decl. in Darwin due to certain projects requirement.
// rdar://10277579
llvm-svn: 143082
2011-10-26 23:59:12 +00:00
74e82bd190
Tweak printf format string parsing to accept 'hh' conversion specifier to accept any char, not just signed char. Fixes <rdar://problem/10303638>.
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llvm-svn: 142908
2011-10-25 04:20:41 +00:00
c3e31e7bb2
In accordance with the C89, C99 and C++98 standards, ICEs can only contain
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floating-point literals if they are the immediate operands of casts.
ImplicitCastExpr is not a cast in the language-standards sense.
llvm-svn: 142832
2011-10-24 18:26:35 +00:00
33ba99566f
Only emit implicit constant conversion truncation warnings in reachable code. Apparently this is what GCC does, and some code depends on this. Fixes <rdar://problem/10321089>.
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llvm-svn: 142716
2011-10-22 02:37:33 +00:00
faaf2731f6
Add tests for CodeGen types in MS ABI. Based on patch by r4start.
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llvm-svn: 142697
2011-10-21 23:03:08 +00:00
43114f9084
More ASTRecordLayout changes for MS ABI; based on patch by r4start.
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llvm-svn: 142694
2011-10-21 22:49:56 +00:00
60060d6f8f
Treat the Microsoft/Borland keyword "__except" as a context-sensitive
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keyword, because both libstdc++ and libc++ use "__except" as an
identifier. Fixes <rdar://problem/10322555>.
llvm-svn: 142636
2011-10-21 03:57:52 +00:00
4b489fa629
Only warn at self-initialization if some later use is always uninitialized.
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llvm-svn: 142538
2011-10-19 18:53:03 +00:00
cc8ce7b1d7
Break out ssize_t test from Sema/format-strings-fixit.c
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Move to a separate test that sets a specific target triple
so that the type of ssize_t is known.
llvm-svn: 142481
2011-10-19 07:55:50 +00:00
a5d653c7dd
Another attempt at fixing format-strings-fixit.c.
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Use "%f" as format string to make sure it doesn't match size_t, etc.
whatever they might be typedeffed to, so that the fixit always applies.
llvm-svn: 142348
2011-10-18 09:30:37 +00:00
95c49c6c32
Disable the ssize_t test in format-strings-fixit.c.
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Turns out this part of the test from r142342 wasn't portable.
The errors on the bots look like this:
E:\bb-win7\cmake-clang-i686-msys\build\tools\clang\test\Sema\Output\format-strings-fixit.c.tmp:58:13: error: conversion specifies type 'unsigned int' but the argument has type 'ssize_t' (aka 'long')
printf("%zd", (ssize_t) 42);
~~^ ~~~~~~~~~~~~
%zd
Obviously we can't typedef ssize_t to someting that doesn't have the same size as size_t and expect it to work.
But it's also weird that the format string "%zd" gets interpreted as "unsigned int" when it should clearly be signed.
llvm-svn: 142345
2011-10-18 08:58:16 +00:00
f99d04f841
Suggest %zu for size_t args to printf.
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For PR11152. Make PrintSpecifier::fixType() suggest "%zu" for size_t, etc.
rather than looking at the underlying type and suggesting "%llu" or other
platform-specific length modifiers. Applies to C99 and C++11.
llvm-svn: 142342
2011-10-18 08:10:06 +00:00
5e9534b0ae
Rewrite parts of MS ABI C++ layout. Based on work by r4start; I ended up doing this while I was trying to review his patch.
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llvm-svn: 142325
2011-10-18 00:55:28 +00:00
49b3841398
The comparison of two vectors should return a signed result. hasIntegerRepresentation() used to always return false for vectors, but since it was changed, it also
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changed the return type of a compare of two unsigned vectors to be unsigned. This patch removes the check for hasIntegerRepresentation since its not needed and returns the appropriate signed type.
I added a new test case and updated exisiting test cases that assumed an unsigned result.
llvm-svn: 142250
2011-10-17 21:00:38 +00:00
eda61288ad
Perform an lvalue-to-rvalue conversion on an array index in a __builtin_offsetof expression.
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llvm-svn: 142179
2011-10-17 05:48:07 +00:00
5aa6ecb619
Add sema checks for calls to functions taking static array parameters
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llvm-svn: 142157
2011-10-16 21:17:32 +00:00
f82017f3fe
Missed tests for half FP support
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llvm-svn: 142017
2011-10-14 23:32:50 +00:00
c622163b0f
Only warn in -Wliteral-conversion if the conversion loses information
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llvm-svn: 141955
2011-10-14 15:36:25 +00:00
596fa16dd3
Tweak -Wuninitialized's handling of 'int x = x' to report that as the root cause of an uninitialized variable IFF there are other uses of that uninitialized variable. Fixes <rdar://problem/9259237>.
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llvm-svn: 141881
2011-10-13 18:50:06 +00:00
73a4deb33d
Change __extension__ to disable only diagnostics controlled by -pedantic.
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This changes clang to match GCC's behavior for __extension__, which temporarily
disables the -pedantic flag. Warnings that are enabled without -pedantic
are not affected. Besides the general goodness of matching GCC's precedent,
my motivation for this is that macros in the arm_neon.h header need to use
__extension__ to avoid pedantic complaints about their use of statement
expressions, yet we still want to warn about incompatible pointer arguments
for those macros.
llvm-svn: 141804
2011-10-12 19:55:31 +00:00
2d21ab024e
Add returns_twice to functions that are known to return twice. This implements
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the same behavior of gcc by keeping the attribute out of the function type.
llvm-svn: 141803
2011-10-12 19:51:18 +00:00
b25bfde52d
Frontend: Replace -nostdinc by -nostdsysteminc (which is just system include
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paths). The -nostdinc behavior is now -nostdsysteminc + -nobuiltininc.
llvm-svn: 141691
2011-10-11 18:20:10 +00:00
df14b3a837
Initial implementation of __atomic_* (everything except __atomic_is_lock_free).
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llvm-svn: 141632
2011-10-11 02:20:01 +00:00
08d0491006
Hack in a workaround for PR11082 until we have a proper fix. This
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un-breaks every glib-dependent compile with Clang.
I'm not sure this is even the best workaround, so suggestions welcome.
llvm-svn: 141381
2011-10-07 18:40:27 +00:00
171969c8c2
r141345 also fixed a -Wuninitialized bug where loop conditions were not always flagged as being uninitialized. Addresses <rdar://problem/9432305>.
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llvm-svn: 141346
2011-10-07 00:52:56 +00:00
f8fd4d4962
Fix infinite loop in -Wuninitialized reported in PR 11069.
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llvm-svn: 141345
2011-10-07 00:42:48 +00:00
0dfb889575
Support for C1x _Atomic specifier (see testcase). This is primarily being committed at the moment to help support C++0x <atomic>, but it should be a solid base for implementing the full specification of C1x _Atomic.
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Thanks to Jeffrey Yasskin for the thorough review!
llvm-svn: 141330
2011-10-06 23:00:33 +00:00
540017e54e
Use a sidetable in ASTContext for ParmVarDecls whose index exceeds the 8 bits reserved for that value in VarDecl. Fixes PR 10538.
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llvm-svn: 141273
2011-10-06 05:00:56 +00:00
096ed290a1
Driver & AST: Implement support for -fpack-struct and -fpack-struct= command
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line options.
- <rdar://problem/10120602>, PR9631
llvm-svn: 141211
2011-10-05 21:04:55 +00:00
48c69106e4
c: assignment/init of a function pointer whose function(s)
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return to one which does not return (has noreturn attribute)
should warn as it is an unsafe assignment. // rdar://10095762
c++ already handles this. This is the c version.
llvm-svn: 141141
2011-10-05 00:05:34 +00:00
42856de542
Hey, maybe we shouldn't silently ignore decl attributes
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on declarators written as types.
llvm-svn: 140931
2011-10-01 05:17:03 +00:00
271002fc99
Support dllimport and dllexport on x86-64 Windows. PR10978. Patch by Ruben Van Boxem.
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llvm-svn: 140871
2011-09-30 18:53:25 +00:00
32f5fe1467
Add explicit attributes to mark functions as having had their
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CoreFoundation object-transfer properties audited, and add a #pragma
to cause them to be automatically applied to functions in a particular
span of code. This has to be implemented largely in the preprocessor
because of the requirement that the region be entirely contained in
a single file; that's hard to impose from the parser without registering
for a ton of callbacks.
llvm-svn: 140846
2011-09-30 05:12:12 +00:00
a4b02c30de
Some fixes for MS-style asm parsing: specifically, add some error checking, and handle asm comments using semicolons correctly. (The comments are actually surprisingly tricky.)
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llvm-svn: 140837
2011-09-30 01:13:51 +00:00
d71061298c
c - Enumerators may inherit the deprecated/unavailable
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attributes from the enumeration type.
// rdar://10201690
llvm-svn: 140800
2011-09-29 18:40:01 +00:00
2f3cf4b158
Add support for alignment-specifiers in C1X and C++11, remove
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support for the C++0x draft [[align]] attribute and add the C1X
standard header file stdalign.h
llvm-svn: 140796
2011-09-29 18:04:28 +00:00
6e302b2e6e
Do not warn about empty format strings when there are no data arguments. Fixes <rdar://problem/9473155>.
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llvm-svn: 140777
2011-09-29 05:52:16 +00:00
9ab36372db
PR11002: Make sure we emit sentinel warnings with a valid source location. (Ideally, we want to use the location returned by getLocForEndOfToken, but that is not always successful.)
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llvm-svn: 140658
2011-09-27 23:46:37 +00:00
84d2d3a90e
Some changes to improve compatibility for MSVC-style C++ struct layout. Patch from r4start at gmail.com (with some minor modifications by me).
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llvm-svn: 140623
2011-09-27 19:12:27 +00:00
d8d7a37437
CheckStringInit has side effects; make sure we don't run it in VerifyOnly mode, at least for the moment. <rdar://problem/10185490>.
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Sebastian, please take a look at this; I'm not entirely sure it is the right thing to do.
llvm-svn: 140552
2011-09-26 19:09:09 +00:00
Bob Wilson