[Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions

[Joey dot ye at intel dot com]

------- Comment #8 from Joey dot ye at intel dot com  2008-08-27 08:11 -------
GDB output:
(gdb)  b tranx1_
Breakpoint 1 at 0x43a670
(gdb)  r

Breakpoint 1, 0x000000000043a670 in tranx1_ ()
(gdb)  b *0x43accd
Breakpoint 2 at 0x43accd
(gdb)  b *0x43acf4
Breakpoint 3 at 0x43acf4
(gdb)  b *0x43ad2f
Breakpoint 4 at 0x43ad2f
(gdb)  c

Breakpoint 2, 0x000000000043accd in tranx1_ ()
(gdb)  x 0x43accd
0x43accd <tranx1_+1629>:        mov    0xffffffffffffff98(%rsp),%rcx
(gdb)  c

Breakpoint 3, 0x000000000043acf4 in tranx1_ ()
(gdb)  x 0x43acf4
0x43acf4 <tranx1_+1668>:        lea    0x160603e8(,%rcx,8),%rbx
(gdb)  i r rcx
rcx            0x5      5
(gdb)  c

Breakpoint 4, 0x000000000043ad2f in tranx1_ ()
(gdb)  x 0x43ad2f
0x43ad2f <tranx1_+1727>:        mov    %rbx,0xffffffffffffff98(%rsp) 
// RTL #893 Suspicious
(gdb)  i r rbx
rbx            0x16060410       369493008
(gdb)  c

Breakpoint 2, 0x000000000043accd in tranx1_ ()
(gdb)  x 0x43accd
0x43accd <tranx1_+1629>:        mov    0xffffffffffffff98(%rsp),%rcx
(gdb)  c

Breakpoint 3, 0x000000000043acf4 in tranx1_ ()
(gdb)  x 0x43acf4
0x43acf4 <tranx1_+1668>:        lea    0x160603e8(,%rcx,8),%rbx
(gdb)  i r rcx
rcx            0x16060410       369493008
(gdb)  c

Breakpoint 4, 0x000000000043ad2f in tranx1_ ()
(gdb)  x 0x43ad2f
0x43ad2f <tranx1_+1727>:        mov    %rbx,0xffffffffffffff98(%rsp)
(gdb)  i r rbx
rbx            0xc6362468       3325437032
(gdb)  c

Program received signal SIGSEGV, Segmentation fault.
0x000000000043ad65 in tranx1_ ()
(gdb)  x 0x43ad65
0x43ad65 <tranx1_+1781>:        subsd  (%r14),%xmm0
(gdb)  i r r14
r14            0xc6362468       3325437032


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243