[LLVMdev] Error compiling simple loop, Casting.h used by Polly

[Alexander Potapenko]

Hi Ryan,

Is there a PR about this? I've just hit the same assertion with
AddressSanitizer,
http://code.google.com/p/address-sanitizer/issues/detail?id=67

On Tue, Feb 14, 2012 at 2:57 AM, Ryan Taylor <ryta1203 at gmail.com> wrote:
> clang:
> /home/ryan/llvm/llvm_core/llvm-3.0/include/llvm/Support/Casting.h:194:
> typename cast_retty<PHINode, ilist_iterator<Instruction> >::ret_type
> llvm::cast(const llvm::ilist_iterator<llvm::Instruction> &): Assertion
> `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
> 0  clang           0x0000000001b3618f
> 1  clang           0x0000000001b366a9
> 2  libpthread.so.0 0x00007f5b07d3bc60
> 3  libc.so.6       0x00007f5b07026d05 gsignal + 53
> 4  libc.so.6       0x00007f5b0702aab6 abort + 390
> 5  libc.so.6       0x00007f5b0701f7c5 __assert_fail + 245
> 6  LLVMPolly.so    0x00007f5b06dae9b8
> 7  clang           0x0000000001ad97cf
> llvm::FPPassManager::runOnFunction(llvm::Function&) + 351
> 8  clang           0x0000000001ad9059
> llvm::FunctionPassManagerImpl::run(llvm::Function&) + 329
> 9  clang           0x0000000001ad8edb
> llvm::FunctionPassManager::run(llvm::Function&) + 139
> 10 clang           0x000000000076cd6c
> clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions
> const&, clang::TargetOptions const&, clang::LangOptions const&,
> llvm::Module*, clang::BackendAction, llvm::raw_ostream*) + 5004
> 11 clang           0x000000000076ad83
> 12 clang           0x0000000000884700 clang::ParseAST(clang::Sema&, bool) +
> 448
> 13 clang           0x000000000076a1fb clang::CodeGenAction::ExecuteAction()
> + 859
> 14 clang           0x000000000062b63d
> clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 957
> 15 clang           0x00000000006147d7
> clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 2247
> 16 clang           0x000000000060b81f cc1_main(char const**, char const**,
> char const*, void*) + 2991
> 17 clang           0x0000000000610c35 main + 757
> 18 libc.so.6       0x00007f5b07011eff __libc_start_main + 255
> 19 clang           0x000000000060abad
> Stack dump:
> 0.    Program arguments: /usr/local/bin/clang -cc1 -triple
> x86_64-unknown-linux-gnu -emit-llvm -disable-free -main-file-name loop1.c
> -mrelocation-model static -masm-verbose -mconstructor-aliases
> -munwind-tables -target-cpu x86-64 -target-linker-version 2.21.0.20110327
> -momit-leaf-frame-pointer -coverage-file loop1.c.ll -resource-dir
> /usr/local/bin/../lib/clang/3.1 -fmodule-cache-path
> /var/tmp/clang-module-cache -internal-isystem /usr/local/include
> -internal-isystem /usr/local/bin/../lib/clang/3.1/include
> -internal-externc-isystem /usr/include/x86_64-linux-gnu
> -internal-externc-isystem /include -internal-externc-isystem /usr/include
> -O3 -fdebug-compilation-dir /home/ryan/llvm/llvm_core/llvm-3.0 -ferror-limit
> 19 -fmessage-length 100 -mstackrealign -fgnu-runtime -fobjc-runtime-has-arc
> -fobjc-runtime-has-weak -fobjc-fragile-abi -fdiagnostics-show-option
> -fcolor-diagnostics -load
> /home/ryan/llvm/llvm_core/llvm-3.0/tools/polly/Release+Asserts/lib/LLVMPolly.so
> -mllvm -polly -o loop1.c.ll -x c loop1.c
> 1.    <eof> parser at end of file
> 2.    Per-function optimization
> 3.    Running pass 'Polly - Prepare code for polly' on function '@func'
> clang: error: unable to execute command: Aborted
> clang: error: clang frontend command failed due to signal (use -v to see
> invocation)
> clang: note: diagnostic msg: Please submit a bug report to
> http://llvm.org/bugs/ and include command line arguments and all diagnostic
> information.
> clang: note: diagnostic msg: Preprocessed source(s) and associated run
> script(s) are located at:
> clang: note: diagnostic msg: /tmp/loop1-xX24bI.i
> clang: note: diagnostic msg: /tmp/loop1-xX24bI.sh
>
> This code was running fine earlier today before I "up"'d the svn checkout
> for everything (polly, clang, llvm) and reinstalled updated cloog. I have
> attached a test case.
>
> I am compiling with this:
>
> clang -Xclang -load -Xclang ${PATH_TO_POLLY_LIB}LLVMPolly.so $1 -mllvm
> -polly -O3 -S -emit-llvm
>
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>



-- 
Alexander Potapenko
Software Engineer
Google Moscow