[Llvm-bgq-discuss] cnk syscalls

Wed Jan 2 13:59:32 CST 2013

----- Original Message -----
> From: "Hal Finkel" <hfinkel at anl.gov>
> To: "Michael Blocksome" <blocksom at us.ibm.com>
> Cc: llvm-bgq-discuss at lists.alcf.anl.gov
> Sent: Wednesday, January 2, 2013 1:41:14 PM
> Subject: Re: [Llvm-bgq-discuss] cnk syscalls
> 
> ----- Original Message -----
> > From: "Michael Blocksome" <blocksom at us.ibm.com>
> > To: "Hal Finkel" <hfinkel at anl.gov>
> > Cc: llvm-bgq-discuss at lists.alcf.anl.gov
> > Sent: Wednesday, January 2, 2013 1:32:59 PM
> > Subject: Re: [Llvm-bgq-discuss] cnk syscalls
> > 
> > Jeff ... thanks for the suggestion. The workaround seems to work
> > just
> > fine, so I am "un-stuck" again.
> > 
> > Hal ... thanks for looking into this bug. I don't have any urgent
> > need for the fix though, so whenever it happens is just fine with
> > me. :)
> 
> Actually, there is another work-around: compile with optimizations.
> You're hitting a bug in the fast register allocator, and that is
> only used at -O0. Nevertheless, I'll try to get this resolved.

http://llvm.org/bugs/show_bug.cgi?id=14787

 -Hal

> 
>  -Hal
> 
> > 
> > Thanks again!
> > 
> > Michael Blocksome
> > Blue Gene Messaging
> > blocksom at us.ibm.com
> > 
> > 
> > 
> > 
> > From: Hal Finkel <hfinkel at anl.gov>
> > To: Michael Blocksome/Rochester/IBM at IBMUS,
> > Cc: llvm-bgq-discuss at lists.alcf.anl.gov
> > Date: 01/02/2013 01:15 PM
> > Subject: Re: [Llvm-bgq-discuss] cnk syscalls
> > 
> > 
> > 
> > 
> > ----- Original Message -----
> > > From: "Michael Blocksome" <blocksom at us.ibm.com>
> > > To: llvm-bgq-discuss at lists.alcf.anl.gov
> > > Sent: Wednesday, January 2, 2013 12:17:37 PM
> > > Subject: [Llvm-bgq-discuss] cnk syscalls
> > > 
> > > 
> > > All,
> > > 
> > > I've encountered an ICE with clang built from the recent updates
> > > (thanks!) when I attempt to use certain CNK syscalls. Has anyone
> > > else seen this? Is there a workaround?
> > 
> > Interesting, thanks! I'll get this fixed. I don't have a better
> > workaround than what Jeff suggested (compile this file with gcc).
> > 
> > -Hal
> > 
> > > 
> > > Here's my code and the clang output:
> > > 
> > > ====
> > > 
> > > .../test> cat personality_ice.cc
> > > 
> > > #include <kernel/location.h>
> > > 
> > > int main ()
> > > {
> > > Personality_t personality;
> > > Kernel_GetPersonality(&personality, sizeof(Personality_t));
> > > 
> > > return 0;
> > > };
> > > 
> > > .../test> /bghome/blocksom/development/llvm/bgclang++
> > > -ferror-limit=10 -I../include -I /bgsys/drivers/ppcfloor -I
> > > /bgsys/drivers/ppcfloor/spi/include -I
> > > /bgsys/drivers/ppcfloor/spi/include/kernel/cnk -std=c++11
> > > -stdlib=libc++ -fno-exceptions -v -c personality_ice.cc -o
> > > personality_ice.o
> > > clang version 3.3 (trunk 170456)
> > > Target: powerpc64-bgq-linux
> > > Thread model: posix
> > > "/bghome/blocksom/development/llvm/install/bin/clang" -cc1
> > > -triple
> > > powerpc64-bgq-linux -S -disable-free -main-file-name
> > > personality_ice.cc -static-define -mrelocation-model static
> > > -mdisable-fp-elim -fmath-errno -ffp-contract=fast
> > > -mconstructor-aliases -target-cpu a2q -target-linker-version
> > > 2.20.51.0.2 -momit-leaf-frame-pointer -v -coverage-file
> > > /tmp/personality_ice-m3wqVS.s -resource-dir
> > > /bghome/blocksom/development/llvm/install/bin/../lib/clang/3.3 -I
> > > ../include -I /bgsys/drivers/ppcfloor -I
> > > /bgsys/drivers/ppcfloor/spi/include -I
> > > /bgsys/drivers/ppcfloor/spi/include/kernel/cnk
> > > -fmodule-cache-path
> > > /var/tmp/clang-module-cache -internal-isystem /usr/include/c++/v1
> > > -internal-isystem /usr/local/include -internal-isystem
> > > /bghome/blocksom/development/llvm/install/bin/../lib/clang/3.3/include
> > > -internal-externc-isystem /include -internal-externc-isystem
> > > /usr/include -std=c++11 -fdeprecated-macro
> > > -fno-dwarf-directory-asm
> > > -fdebug-compilation-dir
> > > /bghome/blocksom/development/boost-pami/next/test -ferror-limit
> > > 10
> > > -fmessage-length 231 -mstackrealign -fno-signed-char
> > > -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics
> > > -isystem /bghome/blocksom/development/llvm/install/libc++/include
> > > -isystem
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/include/c++/4.4.6
> > > -isystem
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/include/c++/4.4.6/powerpc64-bgq-linux
> > > -isystem
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/sys-include
> > > -mllvm -enable-misched -mllvm -enable-aa-sched-mi -mllvm
> > > -ilp-window=0 -o /tmp/personality_ice-m3wqVS.s -x c++
> > > personality_ice.cc
> > > clang -cc1 version 3.3 based upon LLVM 3.3svn default target
> > > powerpc64-unknown-linux-gnu
> > > ignoring nonexistent directory "/usr/include/c++/v1"
> > > ignoring nonexistent directory "/include"
> > > #include "..." search starts here:
> > > #include <...> search starts here:
> > > ../include
> > > /bgsys/drivers/ppcfloor
> > > /bgsys/drivers/ppcfloor/spi/include
> > > /bgsys/drivers/ppcfloor/spi/include/kernel/cnk
> > > /bghome/blocksom/development/llvm/install/libc++/include
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/include/c++/4.4.6
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/include/c++/4.4.6/powerpc64-bgq-linux
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/sys-include
> > > /usr/local/include
> > > /bghome/blocksom/development/llvm/install/bin/../lib/clang/3.3/include
> > > /usr/include
> > > End of search list.
> > > Instruction uses an allocated register
> > > UNREACHABLE executed at
> > > /bghome/blocksom/development/llvm/src/lib/CodeGen/RegAllocFast.cpp:351!
> > > 0 clang 0x0000000011f55b1c
> > > 1 clang 0x0000000011f56924
> > > 2 0x00000fff962e0418 __kernel_sigtramp_rt64 + 0
> > > 3 libc.so.6 0x00000080dbd86ef8 abort + 18446744073708064168
> > > 4 clang 0x0000000011f38df4 llvm::llvm_unreachable_internal(char
> > > const*, char const*, unsigned int) + 18446744073696340212
> > > 5 clang 0x00000000118fa8c4
> > > 6 clang 0x00000000118fb77c
> > > 7 clang 0x000000001189498c
> > > llvm::MachineFunctionPass::runOnFunction(llvm::Function&) +
> > > 18446744073689552652
> > > 8 clang 0x0000000011edaa98
> > > llvm::FPPassManager::runOnFunction(llvm::Function&) +
> > > 18446744073695968280
> > > 9 clang 0x0000000011edabdc
> > > llvm::FPPassManager::runOnModule(llvm::Module&) +
> > > 18446744073695968588
> > > 10 clang 0x0000000011eda60c
> > > llvm::MPPassManager::runOnModule(llvm::Module&) +
> > > 18446744073695967132
> > > 11 clang 0x0000000011edbf64
> > > llvm::PassManagerImpl::run(llvm::Module&)
> > > + 18446744073695973428
> > > 12 clang 0x0000000011edc074 llvm::PassManager::run(llvm::Module&)
> > > +
> > > 18446744073695973684
> > > 13 clang 0x000000001044851c
> > > clang::EmitBackendOutput(clang::DiagnosticsEngine&,
> > > clang::CodeGenOptions const&, clang::TargetOptions const&,
> > > clang::LangOptions const&, llvm::Module*, clang::BackendAction,
> > > llvm::raw_ostream*) + 18446744073668788412
> > > 14 clang 0x00000000104453f4
> > > 15 clang 0x00000000105db3d0 clang::ParseAST(clang::Sema&, bool,
> > > bool)
> > > + 18446744073670399680
> > > 16 clang 0x00000000102a0b50
> > > clang::ASTFrontendAction::ExecuteAction()
> > > + 18446744073667099648
> > > 17 clang 0x0000000010443028 clang::CodeGenAction::ExecuteAction()
> > > +
> > > 18446744073668767224
> > > 18 clang 0x00000000102a1024 clang::FrontendAction::Execute() +
> > > 18446744073667100756
> > > 19 clang 0x000000001027ed64
> > > clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) +
> > > 18446744073666962340
> > > 20 clang 0x000000001025f704
> > > clang::ExecuteCompilerInvocation(clang::CompilerInstance*) +
> > > 18446744073666839428
> > > 21 clang 0x0000000010255998 cc1_main(char const**, char const**,
> > > char
> > > const*, void*) + 18446744073666799576
> > > 22 clang 0x000000001025daf0 main + 18446744073666832256
> > > 23 libc.so.6 0x00000080dbd6bcf8
> > > 24 libc.so.6 0x00000080dbd6bef0 __libc_start_main +
> > > 18446744073707958816
> > > Stack dump:
> > > 0. Program arguments:
> > > /bghome/blocksom/development/llvm/install/bin/clang -cc1 -triple
> > > powerpc64-bgq-linux -S -disable-free -main-file-name
> > > personality_ice.cc -static-define -mrelocation-model static
> > > -mdisable-fp-elim -fmath-errno -ffp-contract=fast
> > > -mconstructor-aliases -target-cpu a2q -target-linker-version
> > > 2.20.51.0.2 -momit-leaf-frame-pointer -v -coverage-file
> > > /tmp/personality_ice-m3wqVS.s -resource-dir
> > > /bghome/blocksom/development/llvm/install/bin/../lib/clang/3.3 -I
> > > ../include -I /bgsys/drivers/ppcfloor -I
> > > /bgsys/drivers/ppcfloor/spi/include -I
> > > /bgsys/drivers/ppcfloor/spi/include/kernel/cnk
> > > -fmodule-cache-path
> > > /var/tmp/clang-module-cache -internal-isystem /usr/include/c++/v1
> > > -internal-isystem /usr/local/include -internal-isystem
> > > /bghome/blocksom/development/llvm/install/bin/../lib/clang/3.3/include
> > > -internal-externc-isystem /include -internal-externc-isystem
> > > /usr/include -std=c++11 -fdeprecated-macro
> > > -fno-dwarf-directory-asm
> > > -fdebug-compilation-dir
> > > /bghome/blocksom/development/boost-pami/next/test -ferror-limit
> > > 10
> > > -fmessage-length 231 -mstackrealign -fno-signed-char
> > > -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics
> > > -isystem /bghome/blocksom/development/llvm/install/libc++/include
> > > -isystem
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/include/c++/4.4.6
> > > -isystem
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/include/c++/4.4.6/powerpc64-bgq-linux
> > > -isystem
> > > /bgsys/drivers/ppcfloor/gnu-linux/powerpc64-bgq-linux/sys-include
> > > -mllvm -enable-misched -mllvm -enable-aa-sched-mi -mllvm
> > > -ilp-window=0 -o /tmp/personality_ice-m3wqVS.s -x c++
> > > personality_ice.cc
> > > 1. <eof> parser at end of file
> > > 2. Code generation
> > > 3. Running pass 'Function Pass Manager' on module
> > > 'personality_ice.cc'.
> > > 4. Running pass 'Fast Register Allocator' on function '@main'
> > > clang: error: unable to execute command: Aborted (core dumped)
> > > clang: error: clang frontend command failed due to signal (use -v
> > > to
> > > see invocation)
> > > clang version 3.3 (trunk 170456)
> > > Target: powerpc64-bgq-linux
> > > Thread model: posix
> > > clang: note: diagnostic msg: PLEASE submit a bug report to
> > > http://llvm.org/bugs/ and include the crash backtrace,
> > > preprocessed
> > > source, and associated run script.
> > > clang: note: diagnostic msg:
> > > ********************
> > > 
> > > PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
> > > Preprocessed source(s) and associated run script(s) are located
> > > at:
> > > clang: note: diagnostic msg: /tmp/personality_ice-hApwmA.cpp
> > > clang: note: diagnostic msg: /tmp/personality_ice-hApwmA.sh
> > > clang: note: diagnostic msg:
> > > 
> > > ********************
> > > 
> > > ====
> > > 
> > > Thanks,
> > > Michael Blocksome
> > > 
> > > _______________________________________________
> > > llvm-bgq-discuss mailing list
> > > llvm-bgq-discuss at lists.alcf.anl.gov
> > > https://lists.alcf.anl.gov/mailman/listinfo/llvm-bgq-discuss
> > > 
> > 
> > --
> > Hal Finkel
> > Postdoctoral Appointee
> > Leadership Computing Facility
> > Argonne National Laboratory
> > 
> > 
> > 
> 
> --
> Hal Finkel
> Postdoctoral Appointee
> Leadership Computing Facility
> Argonne National Laboratory
> _______________________________________________
> llvm-bgq-discuss mailing list
> llvm-bgq-discuss at lists.alcf.anl.gov
> https://lists.alcf.anl.gov/mailman/listinfo/llvm-bgq-discuss
> 

-- 
Hal Finkel
Postdoctoral Appointee
Leadership Computing Facility
Argonne National Laboratory