[llvm-bugs] [Bug 38355] New: Crash due to unlimited recursion in visitLocalsRetainedByInitializer (regression)

via llvm-bugs llvm-bugs at lists.llvm.org
Sun Jul 29 14:09:49 PDT 2018


https://bugs.llvm.org/show_bug.cgi?id=38355

            Bug ID: 38355
           Summary: Crash due to unlimited recursion in
                    visitLocalsRetainedByInitializer (regression)
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: abramo.bagnara at bugseng.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 20615
  --> https://bugs.llvm.org/attachment.cgi?id=20615&action=edit
Source

abramo at igor:/tmp$ cat p.c
void f() {
  const int y[] = {
    y[0]
  };
  const int z[] = {
    y[0]
  };
};
abramo at igor:/tmp$ clang-7 -c p.c
Stack dump:
0.      Program arguments: /usr/lib/llvm-7/bin/clang -cc1 -triple
x86_64-pc-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier
-discard-value-names -main-file-name p.c -mrelocation-model static
-mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose
-mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64
-dwarf-column-info -debugger-tuning=gdb -coverage-notes-file /tmp/p.gcno
-resource-dir /usr/lib/llvm-7/lib/clang/7.0.0 -internal-isystem
/usr/local/include -internal-isystem /usr/lib/llvm-7/lib/clang/7.0.0/include
-internal-externc-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/7.3.0/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include
-fdebug-compilation-dir /tmp -ferror-limit 19 -fmessage-length 80
-fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -o p.o -x c
p.c -faddrsig 
1.      p.c:7:4: current parser token ';'
2.      p.c:1:10: parsing function body 'f'
3.      p.c:1:10: in compound statement ('{}')
#0 0x00007f188519430a llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/usr/lib/llvm-7/bin/../lib/libLLVM-7.so.1+0x90330a)
#1 0x00007f18851929c4 llvm::sys::RunSignalHandlers()
(/usr/lib/llvm-7/bin/../lib/libLLVM-7.so.1+0x9019c4)
#2 0x00007f1885192b02 (/usr/lib/llvm-7/bin/../lib/libLLVM-7.so.1+0x901b02)
#3 0x00007f1888763890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#4 0x000055db9db4faa3 (/usr/lib/llvm-7/bin/clang+0x16b8aa3)
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#199 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#200 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#201 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#202 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#203 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#204 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#205 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#206 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#207 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#208 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#209 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#210 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#211 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#212 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#213 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#214 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#215 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#216 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#217 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#218 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#219 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#220 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#221 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#222 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#223 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#224 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#225 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#226 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#227 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#228 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#229 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#230 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#231 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#232 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#233 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#234 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#235 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#236 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#237 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#238 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#239 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#240 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#241 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#242 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#243 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#244 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#245 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#246 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#247 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#248 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#249 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#250 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#251 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
#252 0x000055db9db4ff90 (/usr/lib/llvm-7/bin/clang+0x16b8f90)
#253 0x000055db9db4fe3a (/usr/lib/llvm-7/bin/clang+0x16b8e3a)
#254 0x000055db9db504c7 (/usr/lib/llvm-7/bin/clang+0x16b94c7)
#255 0x000055db9db4f94e (/usr/lib/llvm-7/bin/clang+0x16b894e)
clang: error: unable to execute command: Segmentation fault (core dumped)
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 7.0.0-svn338209-1~exp1+0~20180729072228.405~1.gbpcccb1b (trunk)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ 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/p-522074.c
clang: note: diagnostic msg: /tmp/p-522074.sh
clang: note: diagnostic msg: 

********************

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