[Bug target/44805] New: [4.6 Regression] FAIL: gcc.c-torture/execute/builtins/strpcpy-2.c execution, at -O1 and above

[danglin at gcc dot gnu dot org]

Executing on host: /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/
/te
st/gnu/gcc/gcc/gcc/testsuite/gcc.c-torture/execute/builtins/strpcpy-2.c
/test/gn
u/gcc/gcc/gcc/testsuite/gcc.c-torture/execute/builtins/strpcpy-2-lib.c
/test/gnu
/gcc/gcc/gcc/testsuite/gcc.c-torture/execute/builtins/lib/main.c  -w  -O1   -lm 
  -o /test/gnu/gcc/objdir/gcc/testsuite/gcc/strpcpy-2.x1    (timeout = 300)
PASS: gcc.c-torture/execute/builtins/strpcpy-2.c compilation,  -O1 
Setting LD_LIBRARY_PATH to :/test/gnu/gcc/objdir/gcc::/test/gnu/gcc/objdir/gcc
FAIL: gcc.c-torture/execute/builtins/strpcpy-2.c execution,  -O1 

Program received signal SIGBUS, Bus error.
0x4000000000002cb4 in test (buf3=<value optimized out>, 
    buf4=<value optimized out>, buf6=<value optimized out>, 
    n=<value optimized out>)
    at
/test/gnu/gcc/gcc/gcc/testsuite/gcc.c-torture/execute/builtins/strpcpy-2.c:28
28        if (__builtin_stpcpy ((char *) buf3, "ABCDEFG") != (char *) buf1 + 7

(gdb) p/x $pc
$1 = 0x4000000000002cb4
(gdb) disass 0x4000000000002ca4 0x4000000000002cc4
Dump of assembler code from 0x4000000000002ca4 to 0x4000000000002cc4:
0x4000000000002ca4 <test+116>:  addil L%0,dp,r1
0x4000000000002ca8 <test+120>:  ldd 8(r1),r26
0x4000000000002cac <test+124>:  addil L%0,dp,r1
0x4000000000002cb0 <test+128>:  ldd 10(r1),ret0
0x4000000000002cb4 <test+132>:  ldd 0(ret0),ret0
0x4000000000002cb8 <test+136>:  std ret0,0(r26)
0x4000000000002cbc <test+140>:  addil L%0,dp,r1
0x4000000000002cc0 <test+144>:  ldd 18(r1),r25
End of assembler dump.
(gdb) p/x $ret0
$2 = 0x40000000000017ac
(gdb) x/8c 0x40000000000017ac
0x40000000000017ac <L$C0001>:   65 'A'  66 'B'  67 'C'  68 'D'  69 'E'  70 'F'
7

"ABCDEFG" is misaligned.  At first glance, this appears to be a problem
with the alignment of the .rodata section.


-- 
           Summary: [4.6 Regression] FAIL: gcc.c-
                    torture/execute/builtins/strpcpy-2.c execution, at -O1
                    and above
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
 GCC build triplet: hppa64-hp-hpux11.11
  GCC host triplet: hppa64-hp-hpux11.11
GCC target triplet: hppa64-hp-hpux11.11


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44805