[llvm-bugs] [Bug 49783] New: clang crashes at -O3 (weird with so many duplicate backtraces)

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Mar 31 07:01:50 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=49783

            Bug ID: 49783
           Summary: clang crashes at -O3 (weird with so many duplicate
                    backtraces)
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: haoxintu at gmail.com
                CC: llvm-bugs at lists.llvm.org

Hi all.

The above program makes clang crash only at -O3 with too many numbers of
duplicate backstraces, and this only occurs in the current trunk version of
clang.

$cat small.c
#include <stdint.h>
int a, b, d, e;
int16_t c;
void f() {
  for (; c <= 0;)
    ;
  int g;
  do {
    int j = -9;
    do {
      j += 5;
      int i = -2;
      do {
        i += 2;
        d = 25;
        for (; d <= 64; d++) {
          b ^= a;
          a = e = 0;
          for (; e <= 4; e++)
            ;
          c *= c % d;
        }
      } while (i < 20);
    } while (j < 20);
  } while (g--);
}

$clang -w -O3 small.c
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0.      Program arguments:
/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13
-cc1 -triple x86_64-unknown-linux-gnu -emit-obj --mrelax-relocations
-disable-free -main-file-name small.c -mrelocation-model static
-mframe-pointer=none -fmath-errno -fno-rounding-math -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb
-fcoverage-compilation-dir=/home/haoxin/haoxin-data/dut-research/covsmith-test/report-0331
-resource-dir
/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/lib/clang/13.0.0
-c-isystem /usr/local/include/csmith-2.3.0 -cxx-isystem
/usr/local/include/csmith-2.3.0 -internal-isystem /usr/local/include
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/8/../../../../x86_64-linux-gnu/include
-internal-isystem
/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/lib/clang/13.0.0/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include -O3
-w
-fdebug-compilation-dir=/home/haoxin/haoxin-data/dut-research/covsmith-test/report-0331
-ferror-limit 19 -fgnuc-version=4.2.1 -fcolor-diagnostics -vectorize-loops
-vectorize-slp -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/small-ae2ac1.o
-x c small.c
1.      <eof> parser at end of file
2.      Code generation
3.      Running pass 'Function Pass Manager' on module 'small.c'.
4.      Running pass 'Loop Pass Manager' on function '@f'
5.      Running pass 'Canonicalize Freeze Instructions in Loops' on basic block
'%for.body8.peel.next'
  #0 0x000055e4620e2fcc llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x3481fcc)
  #1 0x000055e4620e0c04 llvm::sys::RunSignalHandlers()
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x347fc04)
  #2 0x000055e4620e0d73 SignalHandler(int) Signals.cpp:0:0
  #3 0x00007fdeafee2980 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
  #4 0x000055e4611f0ed4
llvm::DenseMapIterator<llvm::ScalarEvolution::SCEVCallbackVH, llvm::SCEV
const*, llvm::DenseMapInfo<llvm::Value*>,
llvm::detail::DenseMapPair<llvm::ScalarEvolution::SCEVCallbackVH, llvm::SCEV
const*>, false>
llvm::DenseMapBase<llvm::DenseMap<llvm::ScalarEvolution::SCEVCallbackVH,
llvm::SCEV const*, llvm::DenseMapInfo<llvm::Value*>,
llvm::detail::DenseMapPair<llvm::ScalarEvolution::SCEVCallbackVH, llvm::SCEV
const*> >, llvm::ScalarEvolution::SCEVCallbackVH, llvm::SCEV const*,
llvm::DenseMapInfo<llvm::Value*>,
llvm::detail::DenseMapPair<llvm::ScalarEvolution::SCEVCallbackVH, llvm::SCEV
const*> >::find_as<llvm::Value*>(llvm::Value* const&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x258fed4)
  #5 0x000055e461202150 llvm::ScalarEvolution::getExistingSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25a1150)
  #6 0x000055e46121acf5 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9cf5)
  #7 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
  #8 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
  #9 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #10 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #11 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #12 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #13 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #14 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #15 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #16 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #17 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #18 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #19 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #20 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #21 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #22 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #23 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #24 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #25 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #26 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #27 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #28 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #29 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #30 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #31 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #32 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #33 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #34 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #35 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #36 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #37 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #38 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #39 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #40 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #41 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #42 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #43 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #44 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #45 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #46 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #47 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #48 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #49 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #50 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #51 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #52 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #53 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #54 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #55 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #56 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #57 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #58 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #59 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #60 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #61 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #62 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #63 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #64 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #65 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #66 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #67 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #68 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #69 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #70 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #71 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #72 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #73 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #74 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #75 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #76 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #77 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #78 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #79 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #80 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #81 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #82 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #83 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #84 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #85 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #86 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #87 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #88 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #89 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #90 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #91 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #92 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #93 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #94 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #95 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #96 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #97 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
 #98 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
 #99 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#100 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#101 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#102 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#103 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#104 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#105 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#106 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
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#235 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#236 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#237 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#238 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#239 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#240 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#241 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#242 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#243 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#244 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#245 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#246 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#247 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#248 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#249 0x000055e461219f15 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#250 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#251 0x000055e46121a021 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#252 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#253 0x000055e4612195b8 llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
#254 0x000055e46121ad40 llvm::ScalarEvolution::getSCEV(llvm::Value*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin/clang-13+0x25b9d40)
#255 0x000055e46121a12f llvm::ScalarEvolution::createSCEV(llvm::Value*)
(.part.1735) ScalarEvolution.cpp:0:0
clang-13: error: unable to execute command: Segmentation fault (core dumped)
clang-13: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 13.0.0 (https://github.com/llvm/llvm-project
850fcedb272ff07ac46b9880e628caec2de3eb2c)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/home/haoxin/haoxin-data/dut-research/compilers/llvm-project/build-20210330/bin
clang-13: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-13: note: diagnostic msg: /tmp/small-b9975a.c
clang-13: note: diagnostic msg: /tmp/small-b9975a.sh
clang-13: note: diagnostic msg: 

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

Thanks,
Haoxin

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