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2012-12-04Add a 'count' field to the DWARF subrange.Bill Wendling
The count field is necessary because there isn't a difference between the 'lo' and 'hi' attributes for a one-element array and a zero-element array. When the count is '0', we know that this is a zero-element array. When it's >=1, then it's a normal constant sized array. When it's -1, then the array is unbounded. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169219 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Have clang use LLVM IR's fast-math flags when in FastMath or FiniteMathOnly ↵Michael Ilseman
modes. Test cases included. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169191 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04remove trailing whitespaceMichael Ilseman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169187 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Fix test failure when building Clang with g++4.7 -- don't use a Twine temporaryRichard Smith
after its lifetime has ended! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169170 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Add Clang flags -fsanitize-blacklist and -fno-sanitize-blacklist. Make this ↵Alexey Samsonov
flag usable for ASan. Blacklisting can be used to disable sanitizer checks for particular file/function/object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169144 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Fix PR14474: don't emit debug info for interface types in -gline-tables-only ↵Alexey Samsonov
mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169138 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Add -fsanitize=memory.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169124 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-02[ubsan] Add flag to enable recovery from checks when possible.Will Dietz
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169114 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Pull the Attr iteration parts out of Attr.h, so including DeclBase.h doesn't ↵Benjamin Kramer
pull in all the generated Attr code. Required to pull some functions out of line, but this shouldn't have a perf impact. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169092 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Fixing a precedence issue with my previous commit.Aaron Ballman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169041 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Fixing an MSVC warning about an unsafe mixture of Boolean and unsigned types ↵Aaron Ballman
in a logical operator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169037 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Fix a small calling-convention bug for x86-32. PR14453.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168959 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29This patch exposes to Clang users three more sanitizers are experimental ↵Alexey Samsonov
features of ASan: 1) init-order sanitizer: initialization-order checker. Status: usable, but may produce false positives w/o proper blacklisting. 2) use-after-return sanitizer Status: implemented, but heavily understed. Should be optional, as it significanlty slows program down. 3) use-after-scope sanitizer Status: in progress. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168950 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Merge function types in C.Rafael Espindola
Among other differences, GCC accepts typedef int IA[]; typedef int A10[10]; static A10 *f(void); static IA *f(void); void g(void) { (void)sizeof(*f()); } but clang used to reject it with: invalid application of 'sizeof' to an incomplete type 'IA' (aka 'int []') The intention of c99's 6.2.7 seems to be that we should use the composite type and accept as gcc does. Doing the type merging required some extra fixes: * Use the type from the function type in initializations, even if an parameter is available. * Fix the merging of the noreturn attribute in function types. * Make CodeGen handle the fact that an parameter type can be different from the corresponding type in the function type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168895 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28objective-C blocks: Make sure that identical logic is usedFariborz Jahanian
in deciding a copy/dispose field is needed in a byref structure and when generating the copy/dispose helpers. In certain cases, these fields were being added but no copy/dispose was being generated. This was uncovered in ARC, but not in MRR. // rdar://12759433 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168825 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28ABI: comments from Eli on r168820.Manman Ren
rdar://12723368 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168821 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28ABI: modify CreateCoercedLoad and CreateCoercedStore to not use load or store ofManman Ren
the original parameter or return type. Since we do not accurately represent the data fields of a union, we should not directly load or store a union type. As an exmple, if we have i8,i8, i32, i32 as one field type and i32,i32 as another field type, the first field type will be chosen to represent the union. If we load with the union's type, the 3rd byte and the 4th byte will be skipped. rdar://12723368 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168820 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28[asan] Split AddressSanitizer into two passes (FunctionPass, ModulePass), ↵Kostya Serebryany
Clang part. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168782 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27objective-C arc: load of a __weak object happens via call toFariborz Jahanian
objc_loadWeak. This retains and autorelease the weakly-refereced object. This hidden autorelease sometimes makes __weak variable alive even after the weak reference is erased, because the object is still referenced by an autorelease pool. This patch overcomes this behavior by loading a weak object via call to objc_loadWeakRetained(), followng it by objc_release at appropriate place, thereby removing the hidden autorelease. // rdar://10849570 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168740 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Add -fsanitize=integer for reporting suspicious integer behaviors.Will Dietz
Introduces new sanitizer "unsigned-integer-overflow". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168701 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27This patch addresses an incompatibility relative to the 64-bit PowerPCBill Schmidt
ELF ABI. Complex values are to be passed in registers as though the real and imaginary parts were passed as separate parameters. Prior to this patch, complex values were passed as byval aggregates. It turns out that specifying getDirect() for all complex types when classifying the argument type results in the desired behavior. The new Clang test case verifies that the correct LLVM IR is generated for caller and callee for each of the underlying types for _Complex. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168673 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26MSPGCC renamed ISR vectors from vector_<address> to __isr_<number>. This ↵Anton Korobeynikov
patch makes Clang reflect this scheme. Patch by Job Noorman! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168598 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-23PR14306: Move -fbounds-checking to -fsanitize=bounds.Joey Gouly
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168510 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20Update method calls to the new interface re r168354.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168355 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Enable inlining of 4 byte atomic ops on ppc32, 8 byte atomic ops on ppc64.Benjamin Kramer
Also fixes a bit/byte mismatch when checking if a target supports atomic ops of a certain size. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168260 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16A step towards sorting out handling of triviality of special members in C++11.Richard Smith
Separate out the notions of 'has a trivial special member' and 'has a non-trivial special member', and use them appropriately. These are not opposites of one another (there might be no special member, or in C++11 there might be a trivial one and a non-trivial one). The CXXRecordDecl predicates continue to produce incorrect results, but do so in fewer cases now, and they document the cases where they might be wrong. No functionality changes are intended here (they will come when the predicates start producing the right answers...). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168119 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Make sure CodeGenTypes correctly reconverts function types. Fixes PR14355, ↵Eli Friedman
a crash in IR generation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168112 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Simplify code. No functionality change.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168047 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Use empty parens for empty function parameter list instead of '(void)'.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168041 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Make -ffp-contract a codegen option, rather than a laguage option. This makesLang Hames
more sense anyway - it determines how expressions are codegen'd. It also ensures that -ffp-contract=fast has the intended effect when compiling LLVM IR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168027 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14When evaluating variably modified types for function parameters, dig out theEli Friedman
type as written from the ParmVarDecl; it's unclear whether the standard (C99 6.9.1p10) requires this, but we're following the precedent set by gcc, and hopefully nobody will ever ask about this again. PR9559 / <rdar://problem/12621983>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167985 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14The ObjC++-to-C++ personality trick is only necessary on NeXT runtimes,John McCall
which is not coincidentally the only place it works, either (because of how it tests for EH_TYPE symbols). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167935 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14fixes a buildbot failure.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167934 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Fix 80-column violation.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167932 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14objective-C blocks: Provide layout map for byrefFariborz Jahanian
variables captured in a block. // rdar://12184410 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167931 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Move some GNUStep-specific code out of CGObjCGNU.John McCall
Patch by Jonathan Schleifer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167925 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Revert "Use the 'count' attribute instead of the 'upper_bound' attribute."Eric Christopher
temporarily since it breaks the gdb bots. This reverts commit r167807/30305bec25cac981c6d4a3b8be004401310a82a7. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167887 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Use the 'count' attribute instead of the 'upper_bound' attribute.Bill Wendling
If we have a type 'int a[1]' and a type 'int b[0]', the generated DWARF is the same for both of them because we use the 'upper_bound' attribute. Instead use the 'count' attrbute, which gives the correct number of elements in the array. <rdar://problem/12566646> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167807 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Fix IR generation for bool on PPC (and any other target where bool is not 8 ↵Eli Friedman
bits in memory). PR11777. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167802 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10objective-C blocks: Change BLOCK_HAS_EXTENDED_LAYOUT to be 1<<31.Fariborz Jahanian
lower 24bit is currently being used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167678 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09Turn FrontendInputFile into an immutable class and have it also acceptArgyrios Kyrtzidis
a memory buffer instead of only a filename. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167627 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09Implement -mstrict-align using '-backend-option -arm-strict-align' as this savesChad Rosier
us from having to make any backend changes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167623 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09[driver] Add a -mstrict-align compiler option for ARM targets.Chad Rosier
rdar://12340498 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167619 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07When deciding whether to convert an array construction loop into a memcpy, lookRichard Smith
at whether the *selected* constructor would be trivial rather than considering whether the array's element type has *any* non-trivial constructors of the relevant kind. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167562 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07objective-C blocks: bring back the CharUnit patch forFariborz Jahanian
captured block variable layout meta-data. No intended change in functionality. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167549 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07Fix the Objective-C exception rethrow from cleanups (GNU runtimes). Note thatDavid Chisnall
a bug in the inliner still causes the wrong thing to happen at -O2 and above (PR14116). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167534 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Put something sane in the DWARF offset field for bitfield ObjC ivars.Eli Friedman
This is useful because unnamed bitfields can have effects on the offsets which are not otherwise reflected in the DWARF information. <rdar://problem/12629719> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167503 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Implement codegen for init_priority attribute properly - make sure itAnton Korobeynikov
works between the modules. No functionality change on Darwin/Windows. This fixes PR11480. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167496 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Back out 167431+167437+167487; I didn't realize how incomplete our testEli Friedman
coverage of this code is. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167495 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Fix a silly mistake in r167437.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167487 91177308-0d34-0410-b5e6-96231b3b80d8
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