search for: llvm_abi_breaking_check

Hi all, An issue that come up from time to time and has cost hours for debug for many of us and users of LLVM is that an assert build isn’t ABI compatible with a release build. The CMake flags that controls this behavior is LLVM_ABI_BREAKING_CHECKS ( LLVM_ABI_BREAKING_CHECKS:STRING Used to decide if LLVM should be built with ABI breaking checks or not. Allowed values are WITH_ASSERTS (default), FORCE_ON and FORCE_OFF. WITH_ASSERTS turns on ABI breaking checks in an assertion enabled build. FORCE_ON (FORCE_OFF) turns them on (off) irrespec...

...dev wrote: >> Hi all, >> >> An issue that come up from time to time and has cost hours for debug for >> many of us and users of LLVM is that an assert build isn’t ABI >> compatible with a release build. >> >> The CMake flags that controls this behavior is LLVM_ABI_BREAKING_CHECKS ( >> >> *LLVM_ABI_BREAKING_CHECKS*:STRING >> Used to decide if LLVM should be built with ABI breaking checks or >> not. Allowed values >> are WITH_ASSERTS (default), FORCE_ON and FORCE_OFF. WITH_ASSERTS turns >> on ABI breaking checks in an asserti...

...ainAPI.m > Clang :: Analysis/malloc.c > Clang :: Rewriter/objc-modern-metadata-visibility.mm > Clang :: SemaCXX/warn-loop-analysis.cpp > LLVM :: Transforms/SimplifyCFG/bug-25299.ll Wait, so you committed a patch that breaks these tests? Should you fix them first? IIUC, LLVM_ABI_BREAKING_CHECKS is WITH_ASSERTS by default, so your change, which is known to break things, is enabled for those of us enabling asserts? Or am I misunderstanding?

Hi, when using the "Debug" build of LLVM 8.0 my application which uses the LLVM builder and MCJIT components fails at startup with: symbol lookup error: ./main: undefined symbol: _ZN4llvm23EnableABIBreakingChecksE (unmangled: llvm::EnableABIBreakingChecks) The application works fine with the "Release" build of LLVM 8.0! (Right now, I need the Debug build for access to

.../malloc.c >> Clang :: Rewriter/objc-modern-metadata-visibility.mm >> Clang :: SemaCXX/warn-loop-analysis.cpp >> LLVM :: Transforms/SimplifyCFG/bug-25299.ll > > Wait, so you committed a patch that breaks these tests? Should you fix > them first? > > IIUC, LLVM_ABI_BREAKING_CHECKS is WITH_ASSERTS by default, so your > change, which is known to break things, is enabled for those of us > enabling asserts? > > Or am I misunderstanding? Looks like Mehdi reverted already.

Hi everyone, we have several header files in which the NDEBUG macro is being used. In some of these, the NDEBUG macro changes the size, the interface, or the layout of a type. One example is AssertingVH, which turns into a flat, transparent Value* wrapper in Release build. Now everywhere you use these headers, the state of the NDEBUG flag must be the same, or else bad things could happen. This

I cannot reproduce this error, but this could be real. David, is this reproducible every time or is this flaky? On Mon, Jan 7, 2019 at 5:03 PM Heejin Ahn via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hello David, > > I use x86_64 and it works on my machine. I also can't find this error on > LLVM buildbot page. I'd appreciate if you help me reproduce the problem.

Everyone, The following patch to reverse iterate SmallPtrSet's has now been merged: https://reviews.llvm.org/D26718 This is how LLVM behavior will change due to this patch: - In LLVM builds with *assertions enabled*, SmallPtrSet's would always be reverse iterated by default. This default behavior can be overridden via the flag "-mllvm -reverse-iterate=<true/false>".

Everyone, There is non-determinism in LLVM codegen in the following scenarios: 1. Between back-to-back runs of the same LLVM toolchain 2. Between Release vs Release+Asserts toolchains 3. Between Linux vs Windows toolchains The main reasons for the non-determinism in codegen are: 1. Iteration of unordered containers (like SmallPtrSet, DenseMap, etc) where the iteration order is undefined 2.

On Mon, Mar 14, 2016 at 5:30 PM, Chris Bieneman <cbieneman at apple.com> wrote: [ brutal-snip ] ... > [ TODO#S: Before doing a 2nd build (and in a 3rd run using more > optimized binaries) ] > > How do I anable LTO via CMAKE? > > > LLVM_ENALBLE_LTO=On > [ v4 of my build-script attached ] Hi Chris, thanks for the response! That seems to work (see below). $ cd

I just ran into this today. Do we need to update our requirements on libstdc++ version? Jay, did you figure out a way around this? On Wed, Sep 4, 2019 at 5:29 AM David Blaikie via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > It's a bug in libstdc++ - so if you have clang using libstdc++ (which it will by default, I think) then it's the same thing. You could try with

Trying to run a self host "ninja check-clang" with ASan enabled I hit a /lot/ of errors like this (strangely I hit none of these in check-llvm, only in check-clang): Any ideas? ==10525==ERROR: AddressSanitizer failed to deallocate 0x10800 (67584) bytes at address 0x631000014800 ==10525==AddressSanitizer CHECK failed:

...LLVMXCoreDesc_LIB_DEPENDS:STATIC= //Dependencies for target LLVMXCoreDisassembler_LIB_DEPENDS:STATIC= //Dependencies for target LLVMXCoreInfo_LIB_DEPENDS:STATIC= //Dependencies for target LLVMXRay_LIB_DEPENDS:STATIC= //Enable abi-breaking checks. Can be WITH_ASSERTS, FORCE_ON or // FORCE_OFF. LLVM_ABI_BREAKING_CHECKS:STRING=WITH_ASSERTS //Append the version control system revision id to LLVM version LLVM_APPEND_VC_REV:BOOL=OFF //Value Computed by CMake LLVM_BINARY_DIR:STATIC=/usr/local/google/home/blaikie/dev/llvm/build/clang/debug/split/notypes/nostandalone //PATH to binutils/include containing plugin-api....