[Bug target/47619] ICE in printf() with -fsplit-stack enabled.

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47619

--- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> 2011-02-08 21:31:12 UTC ---
(gdb) disass foo
Dump of assembler code for function foo:
   0x0000000000400ba4 <+0>:    lea    -0x4108(%rsp),%r11
   0x0000000000400bac <+8>:    cmp    %fs:0x70,%r11
   0x0000000000400bb5 <+17>:    jae    0x400bc9 <foo+37>
   0x0000000000400bb7 <+19>:    mov    $0x108,%r10d
   0x0000000000400bbd <+25>:    mov    $0x0,%r11d
   0x0000000000400bc3 <+31>:    callq  0x400c48 <__morestack_non_split>
   0x0000000000400bc8 <+36>:    retq   
   0x0000000000400bc9 <+37>:    push   %rbx
   0x0000000000400bca <+38>:    sub    $0x100,%rsp
   0x0000000000400bd1 <+45>:    mov    %rdi,%rbx
   0x0000000000400bd4 <+48>:    mov    %rsp,%rdx
   0x0000000000400bd7 <+51>:    mov    %rdi,%rsi
   0x0000000000400bda <+54>:    mov    $0x4019e4,%edi
   0x0000000000400bdf <+59>:    mov    $0x0,%eax
   0x0000000000400be4 <+64>:    callq  0x4009c8 <printf@plt>
   0x0000000000400be9 <+69>:    mov    $0x20,%ecx
   0x0000000000400bee <+74>:    mov    $0x0,%eax
   0x0000000000400bf3 <+79>:    mov    %rsp,%rdi
   0x0000000000400bf6 <+82>:    rep stos %rax,%es:(%rdi)
   0x0000000000400bf9 <+85>:    test   %rbx,%rbx
   0x0000000000400bfc <+88>:    jle    0x400c07 <foo+99>
   0x0000000000400bfe <+90>:    lea    -0x1(%rbx),%rdi
---Type <return> to continue, or q <return> to quit---
   0x0000000000400c02 <+94>:    callq  0x400ba4 <foo>
   0x0000000000400c07 <+99>:    add    $0x100,%rsp
   0x0000000000400c0e <+106>:    pop    %rbx
   0x0000000000400c0f <+107>:    retq   
End of assembler dump.
(gdb)