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path: root/lib/Sema/SemaExpr.cpp
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2011-07-28Add */& mismatch fixit generation to the Sema::DiagnoseAssignmentResult().Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27Add support for C++0x unicode string and character literals, from Craig Topper!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136210 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26Revert r136046 while fixing handling of e.g. &foo[index_one_past_size]Kaelyn Uhrain
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136113 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26Expand array bounds checking to work in the presence of unary & and *,Kaelyn Uhrain
and to work with pointer arithmetic in addition to array indexing. The new pointer arithmetic porition of the array bounds checking can be turned on by -Warray-bounds-pointer-arithmetic (and is off by default). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136046 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26Test commitKaelyn Uhrain
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136044 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15This handles the missing cases of opencl vector literals.Tanya Lattner
Test cases provided by Anton Lokhmot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135322 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15Remove warnings of constant operands of logical operators from template ↵Richard Trieu
instantiations. Upon instantiation of template, value-dependent parameters are replaced by equivalent literals, so code like: template<unsigned int A, unsigned int B> struct S { int foo() { int x = A && B; } } will not warn on A && B on every instantiation. This will still warn on other cases inside templates, which will be caught on checking the template definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135222 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-13In debugger mode, make ObjC message sends to unknown selectors returnJohn McCall
__unknown_anytype, and rewrite such message sends correctly. I had to bite the bullet and actually add a debugger support mode for this one, which is a bit unfortunate, but there really isn't anything else I could imagine doing; this is clearly just debugger-specific behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135051 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Fix a bug where a local variable named 'self' is causingFariborz Jahanian
implicit ivar accesses to go through the 'self' variable rather than the real 'self' for the method. // rdar://9730771 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134992 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Pop block scope after reading from it.Benjamin Kramer
Found by valgrind. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134983 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Fix typo correction crash on overloaded functions, pr10283.Hans Wennborg
It would be cool if we could do overload resolution to suggest the right function, but at least this fixes the crashing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134976 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11Add diagnostic for constructs like "va_arg(l, float)" which have undefined ↵Eli Friedman
behavior. PR10201. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134926 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11objc-arc: Diagnose when captured variable in block literalsFariborz Jahanian
require destruction and there is possibility of that without construction. Thanks Johnm for review and suggestions offline. // rdar://9535237. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134906 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-08objc++-arc: more diagnosis of converting a weak-unavailableFariborz Jahanian
object to a __weak object type. // rdar://9732636 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134706 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07objc++-arc: diagnose assignment/cast of a weak-unavailableFariborz Jahanian
object to a __weak object/type. // rdar://9732636. One item is yet todo. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134655 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07objc-arc: diagnose assignment/cast of a weak-unavailableFariborz Jahanian
object to a __weak object/type. // rdar://9732636. This is objc side of things. objc++ side tbd. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134624 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01[ARC] When casting from a pointer to an objective-c object with known ↵Argyrios Kyrtzidis
ownership, if the cast type has no ownership specified, implicitly "transfer" the ownership of the cast'ed type to the cast type: id x; (NSString**)&x; // Casting as (__strong NSString**). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134275 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01-Remove Sema::ActOnCastOfParenListExpr and move most of its functionality toArgyrios Kyrtzidis
newly introduced Sema::BuildVectorLiteral. -Make Sema::ActOnCastExpr handle a vector initializer both when the cast'ed expression is a ParenListExpr and when it is a ParenExpr. -Ultimately make Sema::ActOnParenOrParenListExpr independent of what the cast type was. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134274 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Add support for C++ namespace-aware typo correction, e.g., correctingDouglas Gregor
vector<int> to std::vector<int> Patch by Kaelyn Uhrain, with minor tweaks + PCH support from me. Fixes PR5776/<rdar://problem/8652971>. Thanks Kaelyn! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134007 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Cleanup a fixme by using a specific diagnostic for subscriptingChandler Carruth
a pointer to void. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133912 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Factor out (some of) the checking for invalid forms of pointerChandler Carruth
arithmetic into a couple of common routines. Use these to make the messages more consistent in the various contexts, especially in terms of consistently diagnosing binary operators with invalid types on both the left- and right-hand side. Also, improve the grammar and wording of the messages some, handling both two pointers and two (different) types. The wording of function pointer arithmetic diagnostics still strikes me as poorly phrased, and I worry this makes them slightly more awkward if more consistent. I'm hoping to fix that with a follow-on patch and test case that will also make them more helpful when a typedef or template type parameter makes the type completely opaque. Suggestions on better wording are very welcome, thanks to Richard Smith for some initial help on that front. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133906 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24objc-arc: Check on a variety of unsafe assignment of retained Fariborz Jahanian
objects. // rdar://9495837 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133806 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Rename objc_lifetime -> objc_ownership, and modify diagnostics to talk about ↵Argyrios Kyrtzidis
'ownership', not 'lifetime'. rdar://9477613. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133779 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23Fix Sema::CheckVectorOperands so that it doesn't try to insert a cast ↵Eli Friedman
expression into the LHS of a compound assignment. Fixes compound assignment of various "compatible" vector types, including NEON-vector and gcc-vector types. <rdar://problem/9640356> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23Move all of Sema's member-access-related checking out of SemaExpr.cppDouglas Gregor
and into a new file, SemaExprMember.cpp, bringing SemaExpr.cpp just under 10,000 lines of code (ugh). No functionality change, although I intend to do some refactoring of this code to address PR8368 at some point in the "near" future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133674 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Check for placeholders early on inDouglas Gregor
Sema::CreateUnaryExprOrTypeTraitExpr() rather than recursing in some cases. Fixes <rdar://problem/9659191>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133663 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Changes ParenListExpr to always require a type.Manuel Klimek
Removes dead code found in the process. Adds a test to verify that ParenListExprs do not have NULL types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Fix the starting location of the Fix-It note for suspicious precedenceDouglas Gregor
issues between a bitwise operator and a comparison operator. Fixes <rdar://problem/9637759>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133630 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Revert r133526 which re-orders the suggestions for -Wparentheses on ?:Chandler Carruth
operators. There is a consistent design of having the "silence the warning" option first. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133570 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Switch the order of the notes for the parentheses suggested in the caseChandler Carruth
of: a + b ? x : y. In our testing of this flag we've yet to hit a single case where the existing precedence was correct, so we should suggest grouping the ?: first. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133526 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Make more use of llvm::StringRef in various APIs. In particular, don'tJay Foad
use the deprecated forms of llvm::StringMap::GetOrCreateValue(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133515 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Warn for un-parenthesized '&' inside '|' (a & b | c), rdar://9553326.Argyrios Kyrtzidis
Patch by Henry Mason with tweaks by me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Fix a problem with the diagnostics of invalid arithmetic with functionChandler Carruth
pointers I found while working on the NULL arithmetic warning. We here always assuming the LHS was the pointer, instead of using the selected pointer expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133428 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Move away from the poor "abstraction" I added to Type. John arguedChandler Carruth
effectively that this abstraction simply doesn't exist. That is highlighted by the fact that by using it we were papering over a more serious error in this warning: the fact that we warned for *invalid* constructs involving member pointers and block pointers. I've fixed the obvious issues with the warning here, but this is confirming an original suspicion that this warning's implementation is flawed. I'm looking into how we can implement this more reasonably. WIP on that front. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133425 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Restructure the API in Type based on a conversation with Richard Smith.Chandler Carruth
This makes 'isPointerLikeType' a little less confusing, and pulls the decay check into a separate interface that is much more clear and concrete. Also, just implement these as logical wrappers around other predicates. Having a switch based implementation isn't likely to be necessary. We can try to optimize them later if they show up on a profile. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133405 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-19Add test cases for false positives on -Wnull-arithmetic from RichardChandler Carruth
Trieu, and fix them by checking for array and function types as well as pointer types. I've added a predicate method on Type to bundle together the logic we're using here: isPointerLikeType(). I'd welcome better names for this predicate, this is the best I came up with. It's implemented as a switch to be a touch lighter weight than all the chained isa<...> casts that would result otherwise. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133383 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Add a minor hack to avoid using isNullPointerConstant on a hot path. Fixes ↵Eli Friedman
-O0 compile-time regressions from r133196. rdar://9629775 . git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133290 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Don't emit 'unavailable' errors inside an unavailable function. rdar://9623855.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133264 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Objective-C fast enumeration loop variables are not retained in ARC, butJohn McCall
they should still be officially __strong for the purposes of errors, block capture, etc. Make a new bit on variables, isARCPseudoStrong(), and set this for 'self' and these enumeration-loop variables. Change the code that was looking for the old patterns to look for this bit, and change IR generation to find this bit and treat the resulting variable as __unsafe_unretained for the purposes of init/destroy in the two places it can come up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133243 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Implement proper support for generating code for compound literals inDouglas Gregor
C++, which means: - binding the temporary as needed in Sema, so that we generate the appropriate call to the destructor, and - emitting the compound literal into the appropriate location for the aggregate, rather than trying to emit it as a temporary and memcpy() it. Fixes PR10138 / <rdar://problem/9615901>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Check for placeholder expressions before promoting an argument passedDouglas Gregor
through an ellipsis. Fixes <rdar://problem/9623945>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133219 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Add a new warning when a NULL constant is used in arithmetic operations. ↵Richard Trieu
The warning will fire on cases such as: int x = 1 + NULL; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133196 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Allow comparison between block pointers and NULL pointerDouglas Gregor
constants. Fixes PR10145. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133179 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16arc: diagnose dereferencing a __weak pointer which may beFariborz Jahanian
null at any time. // rdar://9612030 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133168 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Refactor parentheses suggestion notes to have less code duplication andChandler Carruth
be more consistent in how parenthesized ranges which hit macros are handled. Also makes the code significantly shorter, and the diagnostics when macros are present a bit more useful. Pair programmed w/ Matthew. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133122 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Cleanup the parameter naming style.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133120 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Automatic Reference Counting.John McCall
Language-design credit goes to a lot of people, but I particularly want to single out Blaine Garst and Patrick Beard for their contributions. Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself, in no particular order. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Warn on "void f(int a[10]) { sizeof(a); }"Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133036 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Sema: show shift result in hexadecimalTed Kremenek
Change the output for -Wshift-overflow and -Wshift-sign-overflow to an unsigned hexadecimal. It makes more sense for looking at bits than a signed decimal does. Also, change the diagnostic's wording from "overrides" to "sets". This uses a new optional argument in APInt::toString() that adds the '0x' prefix to hexademical numbers. This fixes PR 9651. Patch by nobled@dreamwidth.org! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133033 91177308-0d34-0410-b5e6-96231b3b80d8