[LLVMbugs] [Bug 23210] New: ICE on -O2 when using clang {3.7|3.5|3.4} from debian

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23210

            Bug ID: 23210
           Summary: ICE on -O2 when using clang {3.7|3.5|3.4} from debian
           Product: clang
           Version: 3.5
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: juchem at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

-O0 compiles fine

clang c.4 and 3.5 also crash when optimizations are on

repro:
$ clang++-3.7 -O2 -std=c++11 /tmp/ephemeral_rope_test-2c2816.cpp


output:
Debian clang version 3.7.0-svn230892-1 (trunk) (based on LLVM 3.7.0)
Target: x86_64-pc-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/bin/../lib/gcc/i586-linux-gnu/4.9
Found candidate GCC installation: /usr/bin/../lib/gcc/i586-linux-gnu/4.9.2
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9.2
Found candidate GCC installation: /usr/lib/gcc/i586-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i586-linux-gnu/4.9.2
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.2
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
 "/usr/lib/llvm-3.7/bin/clang" -cc1 -triple x86_64-pc-linux-gnu -emit-obj
-disable-free -disable-llvm-verifier -main-file-name ephemeral_rope_test.cpp
-mrelocation-model static -mthread-model posix -fmath-errno -masm-verbose
-mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64
-target-linker-version 2.25 -momit-leaf-frame-pointer -v -g -dwarf-column-info
-resource-dir /usr/lib/llvm-3.7/bin/../lib/clang/3.7.0 -D FATAL_USE_CXXABI -I .
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/backward
-internal-isystem /usr/local/include -internal-isystem
/usr/lib/llvm-3.7/bin/../lib/clang/3.7.0/include -internal-externc-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -O2 -Wall -Werror -std=c++11
-fdeprecated-macro -fdebug-compilation-dir /home/marcelo/src/fatal
-ferror-limit 19 -fmessage-length 0 -pthread -mstackrealign -fobjc-runtime=gcc
-fcxx-exceptions -fexceptions -fdiagnostics-show-option -vectorize-loops
-vectorize-slp -o /tmp/ephemeral_rope_test-8a4927.o -x c++
fatal/string/test/ephemeral_rope_test.cpp
clang -cc1 version 3.7.0 based upon LLVM 3.7.0 default target
x86_64-pc-linux-gnu
ignoring nonexistent directory "/include"
ignoring duplicate directory
"/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9"
#include "..." search starts here:
#include <...> search starts here:
 .
 /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9

/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9
 /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/backward
 /usr/local/include
 /usr/lib/llvm-3.7/bin/../lib/clang/3.7.0/include
 /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/include
 /usr/include/x86_64-linux-gnu
 /usr/include
End of search list.
clang: error: unable to execute command: Killed
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
Debian clang version 3.7.0-svn230892-1 (trunk) (based on LLVM 3.7.0)
Target: x86_64-pc-linux-gnu
Thread model: posix

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