[Bug c/19558] New: openssl speed compiled with 20051020 gcc-4.0 (HEAD) segfaults

[gj at pointblue dot com dot pl]

simply compile openssl 0.9.7e with gcc 4.0 and run openssl speed (speed  
benchmark).  
  
Backtrace:  
#0  0x00002aaaaad71ed4 in bn_add_words () from /usr/lib64/libcrypto.so.0.9.7  
#1  0x00002aaaaad692d7 in BN_uadd () from /usr/lib64/libcrypto.so.0.9.7  
#2  0x00002aaaaad70a05 in BN_mod_inverse () from /usr/lib64/libcrypto.so.0.9.7  
#3  0x00002aaaaad7bec7 in RSA_blinding_on () from /usr/lib64/libcrypto.so.0.9.7  
#4  0x00002aaaaad7a1e0 in RSA_PKCS1_SSLeay ()  
   from /usr/lib64/libcrypto.so.0.9.7  
#5  0x00002aaaaad7a716 in RSA_PKCS1_SSLeay ()  
   from /usr/lib64/libcrypto.so.0.9.7  
#6  0x00002aaaaad7c222 in RSA_sign () from /usr/lib64/libcrypto.so.0.9.7  
#7  0x0000000000430d57 in ?? ()  
#8  0x00000000004111c5 in ?? ()  
#9  0x0000000000411816 in ?? ()  
#10 0x00002aaaab058829 in __libc_start_main () from /lib64/tls/libc.so.6  
#  
  
disassemby of corrupted (it seems) place:  
0x00002aaaaad71ec0 <bn_add_words+0>:    xor    %r8d,%r8d  
0x00002aaaaad71ec3 <bn_add_words+3>:    test   %ecx,%ecx  
0x00002aaaaad71ec5 <bn_add_words+5>:    jle    0x2aaaaad71eec <bn_add_words+44>  
0x00002aaaaad71ec7 <bn_add_words+7>:    mov    %rdx,%rax  
0x00002aaaaad71eca <bn_add_words+10>:   sub    %rdx,%rdx  
0x00002aaaaad71ecd <bn_add_words+13>:   data16  
0x00002aaaaad71ece <bn_add_words+14>:   data16  
0x00002aaaaad71ecf <bn_add_words+15>:   nop  
0x00002aaaaad71ed0 <bn_add_words+16>:   mov    (%rsi,%rdx,8),%rax  
0x00002aaaaad71ed4 <bn_add_words+20>:   adc    (%rdx,%rdx,8),%rax  
0x00002aaaaad71ed8 <bn_add_words+24>:   mov    %rax,(%rdi,%rdx,8)  
0x00002aaaaad71edc <bn_add_words+28>:   lea    0x1(%rdx),%rdx  
0x00002aaaaad71ee0 <bn_add_words+32>:   loop   0x2aaaaad71ed0 <bn_add_words+16>  
0x00002aaaaad71ee2 <bn_add_words+34>:   sbb    %rax,%rax  
0x00002aaaaad71ee5 <bn_add_words+37>:   mov    %rax,%r8  
0x00002aaaaad71ee8 <bn_add_words+40>:   and    $0x1,%r8d  
0x00002aaaaad71eec <bn_add_words+44>:   mov    %r8,%rax  
0x00002aaaaad71eef <bn_add_words+47>:   retq  
  
I'll attach --save-temps output or this source, if necessary.

-- 
           Summary: openssl speed compiled with 20051020 gcc-4.0 (HEAD)
                    segfaults
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gj at pointblue dot com dot pl
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: x86_64
GCC target triplet: amd64


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19558