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* [Sema] Fix crash for type-dependent base classesJan Korous2018-01-131-0/+9
| | | | llvm-svn: 322438
* Fix test/Driver/riscv32-toolchain.c for builds setting CLANG_DEFAULT_LINKERAlex Bradbury2018-01-131-2/+2
| | | | | | | | Petr Hosek reported an external buildbot was failing on riscv32-toolchain.c, seemingly as it set CLANG_DEFAULT_LINKER to lld. Address this by explicitly setting -fuse-ld=ld in the tests. llvm-svn: 322435
* DR126: partially implement the const-correct rules for exception handler ↵Richard Smith2018-01-132-12/+108
| | | | | | | | | matching. While here, fix up the myriad other ways in which Sema's two "can this handler catch that exception?" implementations get things wrong and unify them. llvm-svn: 322431
* Try to suppress Windows testing again.Richard Trieu2018-01-121-1/+1
| | | | llvm-svn: 322420
* Fix test on Windows that was added in r322382.Douglas Yung2018-01-121-6/+6
| | | | | | | | The test was using "%clang++" which on Windows became "clang.exe++". Use %clangxx instead. Reviewed by Paul Robinson llvm-svn: 322417
* When rebuilding an InitListExpr, don't give it a type.Richard Smith2018-01-121-0/+18
| | | | | | | | InitListExprs without types (well, with type 'void') represent not-yet-analyzed initializer lists; InitListExpr with types fool Sema into thinking they don't need further analysis in some cases (particularly C++17 copy omission). llvm-svn: 322414
* [DWARFv5] Have -gdwarf-5 generate MD5 checksumsPaul Robinson2018-01-121-0/+1
| | | | | | Differential Revision: https://reviews.llvm.org/D42011 llvm-svn: 322413
* [analyzer] Don't flag strcpy of string literals into sufficiently large buffers.Artem Dergachev2018-01-121-0/+10
| | | | | | | | | | | | | | | In the security package, we have a simple syntactic check that warns about strcpy() being insecure, due to potential buffer overflows. Suppress that check's warning in the trivial situation when the source is an immediate null-terminated string literal and the target is an immediate sufficiently large buffer. Patch by András Leitereg! Differential Revision: https://reviews.llvm.org/D41384 llvm-svn: 322410
* Disable test for Windows to fix Windows buildbots.Richard Trieu2018-01-121-0/+2
| | | | llvm-svn: 322405
* [OPENMP] Replace calls of getAssociatedStmt().Alexey Bataev2018-01-129-72/+23
| | | | | | | | | | | | | getAssociatedStmt() returns the outermost captured statement for the OpenMP directive. It may return incorrect region in case of combined constructs. Reworked the code to reduce the number of calls of getAssociatedStmt() and used getInnermostCapturedStmt() and getCapturedStmt() functions instead. In case of firstprivate variables it may lead to an extra allocas generation for private copies even if the variable is passed by value into outlined function and could be used directly as private copy. llvm-svn: 322393
* [Lex] Avoid out-of-bounds dereference in LexAngledStringLiteral.Volodymyr Sapsai2018-01-121-0/+0
| | | | | | | | | | | | | | | | | | | | | | Fix makes the loop in LexAngledStringLiteral more like the loops in LexStringLiteral, LexCharConstant. When we skip a character after backslash, we need to check if we reached the end of the file instead of reading the next character unconditionally. Discovered by OSS-Fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3832 rdar://problem/35572754 Reviewers: arphaman, kcc, rsmith, dexonsmith Reviewed By: rsmith, dexonsmith Subscribers: cfe-commits, rsmith, dexonsmith Differential Revision: https://reviews.llvm.org/D41423 llvm-svn: 322390
* [WebAssembly] Support -stdlib=libc++ switchSam Clegg2018-01-121-0/+36
| | | | | | | | | | | | | | Referenced implementation from Fuchsia and Darwin Toolchain. Still only support CST_Libcxx. Now checks that the argument is really '-stdlib=libc++', and display error. Also, now will pass -lc++ and -lc++abi to the linker. Patch by Patrick Cheng! Differential Revision: https://reviews.llvm.org/D41937 llvm-svn: 322382
* [CodeComplete] Add an option to omit results from the preamble.Sam McCall2018-01-122-0/+21
| | | | | | | | | | | | | | | | | | | | | | | Summary: Enumerating the contents of a namespace or global scope will omit any decls that aren't already loaded, instead of deserializing them from the PCH. This allows a fast hybrid code completion where symbols from headers are provided by an external index. (Sema already exposes the information needed to do a reasonabl job of filtering them). Clangd plans to implement this hybrid. This option is just a hint - callers still need to postfilter results if they want to *avoid* completing decls outside the main file. Reviewers: bkramer, ilya-biryukov Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D41989 llvm-svn: 322371
* [ODRHash] Don't hash friend functions.Richard Trieu2018-01-126-0/+66
| | | | | | | | In certain combinations of templated classes and friend functions, the body of friend functions does not get propagated along with function signature. Exclude friend functions for hashing to avoid this case. llvm-svn: 322350
* Add `__reference_binds_to_temporary` trait for checking safe reference ↵Eric Fiselier2018-01-121-0/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | initialization. Summary: The STL types `std::pair` and `std::tuple` can both store reference types. However their constructors cannot adequately check if the initialization of reference types is safe. For example: ``` std::tuple<std::tuple<int> const&> t = 42; // The stored reference is already dangling. ``` Libc++ has a best effort attempts in tuple to diagnose this, but they're not able to handle all valid cases (If I'm not mistaken). For example initialization of a reference from the result of a class's conversion operator. Libc++ would benefit from having a builtin traits which can provide a much better implementation. This patch introduce the `__reference_binds_to_temporary(T, U)` trait that determines whether a reference of type `T` bound to an expression of type `U` would bind to a materialized temporary object. Note that the trait simply returns false if `T` is not a reference type instead of reporting it as an error. ``` static_assert(__is_constructible(int const&, long)); static_assert(__reference_binds_to_temporary(int const&, long)); ``` Reviewers: majnemer, rsmith Reviewed By: rsmith Subscribers: compnerd, cfe-commits Differential Revision: https://reviews.llvm.org/D29930 llvm-svn: 322334
* [WebAssembly] Remove `-allow-undefined-file wasm.syms` from linker argsSam Clegg2018-01-111-2/+2
| | | | | | | | See: https://github.com/WebAssembly/tool-conventions/issues/35 Differential Revision: https://reviews.llvm.org/D41923 llvm-svn: 322321
* Make internal/private GVs implicitly dso_local.Rafael Espindola2018-01-119-11/+11
| | | | | | | | | | | | | | | | While updating clang tests for having clang set dso_local I noticed that: - There are *a lot* of tests to update. - Many of the updates are redundant. They are redundant because a GV is "obviously dso_local". This patch starts formalizing that a bit by requiring that internal and private GVs be dso_local too. Since they all are, we don't have to print dso_local to the textual representation, making it a bit more compact and easier to read. llvm-svn: 322318
* Handle scoped_lockable objects being returned by value in C++17.Richard Smith2018-01-111-0/+26
| | | | | | | | | | | In C++17, guaranteed copy elision means that there isn't necessarily a constructor call when a local variable is initialized by a function call that returns a scoped_lockable by value. In order to model the effects of initializing a local variable with a function call returning a scoped_lockable, pretend that the move constructor was invoked within the caller at the point of return. llvm-svn: 322316
* [Driver][RISCV] Another Windows file separator fix for riscv32-toolchain.c testAlex Bradbury2018-01-111-2/+2
| | | | | | | I've checking the failure log, this _should_ be the last one. Sorry for not spotting this additional case first time round. llvm-svn: 322294
* [Driver][RISCV] Fix r322276 for Windows (path separator issue)Alex Bradbury2018-01-111-2/+2
| | | | | | | | We were seeing test failures of riscv32-toolchain.c on windows due to the \ path separator being used for the linker. Add {{/|\\\\}} pattern (made horrible due to escaping), just like introduced in r214931. llvm-svn: 322286
* [Driver][RISCV] Fix r322276 by adding missing dummy crtbegin.o files to test ↵Alex Bradbury2018-01-115-0/+0
| | | | | | | | | | input The dummy crtbegin.o files were left out in r322276 (as they were ignored by svn add of test/Driver/Inputs/multilib_riscv_linux_sdk) and are necessary for the driver test to work. llvm-svn: 322277
* [RISCV] Add the RISCV target and compiler driverAlex Bradbury2018-01-1118-0/+578
| | | | | | | | | As RV64 codegen has not yet been upstreamed into LLVM, we focus on RV32 driver support (RV64 to follow). Differential Revision: https://reviews.llvm.org/D39963 llvm-svn: 322276
* Revert "[Driver] Update default sanitizer blacklist location"Petr Hosek2018-01-114-0/+0
| | | | | | This reverts commit r322258: broke the dfsan build. llvm-svn: 322260
* Reland "[Driver] Update default sanitizer blacklist location"Petr Hosek2018-01-114-0/+0
| | | | | | | | | This is related to moving the sanitizer blacklists to share/ subdirectory. Differential Revision: https://reviews.llvm.org/D41706 llvm-svn: 322258
* [X86][Sema] Range check the constant argument for the vpshld/vpshrd builtins ↵Craig Topper2018-01-111-0/+76
| | | | | | to ensure it fits in 8-bits. llvm-svn: 322247
* Revert "[Driver] Update default sanitizer blacklist location"Petr Hosek2018-01-114-0/+0
| | | | | | This reverts commit r322233: this is breaking dfsan tests. llvm-svn: 322242
* In C++17, when instantiating an out-of-line definition of an inline static dataRichard Smith2018-01-102-0/+19
| | | | | | member, don't forget to instantiate the initializer too. llvm-svn: 322236
* Reland "[Driver] Update default sanitizer blacklist location"Petr Hosek2018-01-104-0/+0
| | | | | | | | | This is related to moving the sanitizer blacklists to share/ subdirectory. Differential Revision: https://reviews.llvm.org/D41706 llvm-svn: 322233
* [MSan] Enable use-after-dtor instrumentation by default.Matt Morehouse2018-01-102-3/+5
| | | | | | | | | | | | | | | | | Summary: Enable the compile-time flag -fsanitize-memory-use-after-dtor by default. Note that the run-time option MSAN_OPTIONS=poison_in_dtor=1 still needs to be enabled for destructors to be poisoned. Reviewers: eugenis, vitalybuka, kcc Reviewed By: eugenis, vitalybuka Subscribers: cfe-commits, llvm-commits Differential Revision: https://reviews.llvm.org/D37860 llvm-svn: 322221
* [Driver] Test for correct '--version' suggestionBrian Gesiak2018-01-101-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: The `llvm::OptTable::findNearest` bug fixed in https://reviews.llvm.org/D41873 manifested itself as the following erroneous message when invoking Clang: ``` clang -version clang-6.0: error: unknown argument '-version', did you mean 'version'? ``` Add a test to catch any future regressions to the now correct behavior, which asks "did you mean '--version'?". Test Plan: `check-clang` Reviewers: v.g.vassilev, teemperor, ruiu, jroelofs, yamaguchi Reviewed By: v.g.vassilev Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D41912 llvm-svn: 322220
* Revert "[Driver] Update default sanitizer blacklist location"Petr Hosek2018-01-104-0/+0
| | | | | | This reverts commit r322154 because it broke sanitizer bots. llvm-svn: 322155
* [Driver] Update default sanitizer blacklist locationPetr Hosek2018-01-104-0/+0
| | | | | | | | | This is related to moving the sanitizer blacklists to share/ subdirectory. Differential Revision: https://reviews.llvm.org/D41706 llvm-svn: 322154
* [analyzer] suppress nullability inference from a macro when result is used ↵George Karpenkov2018-01-101-0/+10
| | | | | | | | | | | | | | | | | | in another macro The current code used to not suppress the report, if the dereference was performed in a macro, assuming it is that same macro. However, the assumption might not be correct, and XNU has quite a bit of code where dereference is actually performed in a different macro. As the code uses macro name and not a unique identifier it might be fragile, but in a worst-case scenario we would simply emit an extra diagnostic. rdar://36160245 Differential Revision: https://reviews.llvm.org/D41749 llvm-svn: 322149
* Wire up GCOV to the new pass managerDavid Blaikie2018-01-091-1/+4
| | | | | | | | | | GCOV in the old pass manager also strips debug info (if debug info is disabled/only produced for profiling anyway) after the GCOV pass runs. I think the strip pass hasn't been ported to the new pass manager, so it might take me a little while to wire that up. llvm-svn: 322126
* [OpenMP] Fix handling of clause on wrong directive, by Joel. E. DennyAlexey Bataev2018-01-096-10/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: First, this patch fixes an assert failure when, for example, "omp for" has num_teams. Second, this patch prevents duplicate diagnostics when, for example, "omp for" has uniform. This patch makes the general assumption (even where it doesn't necessarily fix an existing bug) that it is worthless to perform sema for a clause that appears on a directive on which OpenMP does not permit that clause. However, due to this assumption, this patch suppresses some diagnostics that were expected in the test suite. I assert that those diagnostics were likely just distracting to the user. Reviewers: ABataev Reviewed By: ABataev Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D41841 llvm-svn: 322107
* Explicitly specify output file.Alexander Kornienko2018-01-091-2/+2
| | | | | | Otherwise the test fails when LLVM sources are on a read-only partition. llvm-svn: 322082
* [ASTImporter] Fix missing SourceLoc import for ObjCMethodDecl selectorsAleksei Sidorin2018-01-091-1/+3
| | | | | | | | Patch by Nico Rieck, test case by Sean Callanan! Differential Revision: https://reviews.llvm.org/D6550 llvm-svn: 322079
* Track in the AST whether the operand to a UnaryOperator can overflow and ↵Aaron Ballman2018-01-091-3/+35
| | | | | | then use that logic when evaluating constant expressions and emitting codegen. llvm-svn: 322074
* Avoid assumption that lit tests are writable (in a couple more places). NFCSam McCall2018-01-092-4/+4
| | | | llvm-svn: 322065
* ananas: Add shared library supportEd Schouten2018-01-091-0/+8
| | | | | | | | | | | | | The Ananas Operating System (https://github.com/zhmu/ananas) has shared library support as of commit 57739c0b6ece56dd4872aedf30264ed4b9412c77. This change adds the necessary settings to clang so that shared executables and libraries can be build correctly. Submitted by: Rink Springer Differential Revision: https://reviews.llvm.org/D41500 llvm-svn: 322064
* Added Control Flow Protection FlagOren Ben Simhon2018-01-092-0/+20
| | | | | | | | | | Cf-protection is a target independent flag that instructs the back-end to instrument control flow mechanisms like: Branch, Return, etc. For example in X86 this flag will be used to instrument Indirect Branch Tracking instructions. Differential Revision: https://reviews.llvm.org/D40478 Change-Id: I5126e766c0e6b84118cae0ee8a20fe78cc373dea llvm-svn: 322063
* [X86] Replace cvt*2mask intrinsics with native IR using 'icmp slt X, ↵Craig Topper2018-01-084-12/+27
| | | | | | zeroinitializer. llvm-svn: 322038
* PR35862: Suppress -Wmissing-variable-declarations warning on inline variables,Richard Smith2018-01-081-1/+22
| | | | | | variable templates, and instantiations thereof. llvm-svn: 322030
* Implement Attribute Target MultiVersioningErich Keane2018-01-0812-0/+782
| | | | | | | | | | | | | | | | | | | | | | | | | | | | GCC's attribute 'target', in addition to being an optimization hint, also allows function multiversioning. We currently have the former implemented, this is the latter's implementation. This works by enabling functions with the same name/signature to coexist, so that they can all be emitted. Multiversion state is stored in the FunctionDecl itself, and SemaDecl manages the definitions. Note that it ends up having to permit redefinition of functions so that they can all be emitted. Additionally, all versions of the function must be emitted, so this also manages that. Note that this includes some additional rules that GCC does not, since defining something as a MultiVersion function after a usage has been made illegal. The only 'history rewriting' that happens is if a function is emitted before it has been converted to a multiversion'ed function, at which point its name needs to be changed. Function templates and virtual functions are NOT yet supported (not supported in GCC either). Additionally, constructors/destructors are disallowed, but the former is planned. llvm-svn: 322028
* Factor out comparison handling for arithmetic types.Richard Smith2018-01-081-1/+1
| | | | | | | | | | This is not quite NFC: we don't perform the usual arithmetic conversions unless we have an operand of arithmetic or enumeration type any more. This matches the standard rule, but actually has no effect other than to marginally improve our diagnostics for the non-arithmetic, non-enumeration cases (by not performing integral promotions on one operand if the other is a pointer). llvm-svn: 322024
* [Myriad] Remove invalidated -elf flag for MoviAsmWalter Lee2018-01-081-1/+1
| | | | | | | | | | | | | | Summary: The flag has been deprecated, and is becoming invalid in the latest MDK. Reviewers: jyknight Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D41713 llvm-svn: 322023
* [OPENMP] Fix debug info for outlined functions in NVPTX + add more tests.Alexey Bataev2018-01-086-68/+110
| | | | | | | Fixed name of emitted outlined functions in NVPTX target + extra tests for the debug info. llvm-svn: 322022
* Fix test added in r321992 failing on some buildbots (again), test requires x86.Sean Eveson2018-01-081-0/+2
| | | | llvm-svn: 322000
* [CodeGen] Fix TBAA info for accesses to members of base classesIvan A. Kosarev2018-01-081-0/+53
| | | | | | | | | | | Resolves: Bug 35724 - regression (r315984): fatal error: error in backend: Broken function found (Did not see access type in access path!) https://bugs.llvm.org/show_bug.cgi?id=35724 Differential Revision: https://reviews.llvm.org/D41547 llvm-svn: 321999
* Avoid assumption that lit tests are writable. NFCSam McCall2018-01-086-6/+6
| | | | llvm-svn: 321997
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