[Bug c++/51574] [4.6] Internal error: Segmentation fault (program cc1plus)

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51574

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2011-12-15 20:13:55 UTC ---
We are running out of stack:

#0  0x0000000000d72a35 in rtx_equal_p (x=) at ../../src/gcc/rtl.c:500
#1  0x0000000000dbeaea in simplify_binary_operation_1 (code=MINUS, 
    mode=SImode, op0=0x7ffff1473fe0, op1=0x7ffff1473fc0, 
    trueop0=0x7ffff1473fe0, trueop1=0x7ffff1473fc0)
    at ../../src/gcc/simplify-rtx.c:2124
#2  0x0000000000dbdd6c in simplify_binary_operation (code=MINUS, mode=SImode, 
    op0=0x7ffff1473fe0, op1=0x7ffff1473fc0)
    at ../../src/gcc/simplify-rtx.c:1909
#3  0x0000000000dc6525 in simplify_plus_minus (code=MINUS, mode=SImode, 
    op0=0x7ffff0ea6c60, op1=0x7ffff1473fc0)
    at ../../src/gcc/simplify-rtx.c:4061
#4  0x0000000000dbf9d9 in simplify_binary_operation_1 (code=MINUS, 
    mode=SImode, op0=0x7ffff0ea6c60, op1=0x7ffff1473fc0, 
    trueop0=0x7ffff0ea6c60, trueop1=0x7ffff1473fc0)
    at ../../src/gcc/simplify-rtx.c:2307
#5  0x0000000000dbdd6c in simplify_binary_operation (code=MINUS, mode=SImode, 
    op0=0x7ffff0ea6c60, op1=0x7ffff1473fc0)
    at ../../src/gcc/simplify-rtx.c:1909
#6  0x0000000000dc7845 in simplify_const_relational_operation (code=EQ, 
    mode=SImode, op0=0x7ffff0ea6c60, op1=0x7ffff1473fc0)
    at ../../src/gcc/simplify-rtx.c:4556
#7  0x0000000000dc6ace in simplify_relational_operation (code=EQ, 
    mode=VOIDmode, cmp_mode=SImode, op0=0x7ffff1473fc0, op1=0x7ffff0ea6c60)