RTL explaination

[kernel coder]

hi,
I'm trying to understand the rtl genrated by gcc for mips processor.I
have read gcc internals by Richard Stallman but there  are still some
confusions in the rtl language.

Following is a snippet of code which i'm trying to understand.

(insn 9 6 10 (nil) (set (reg:SI 182)
       (mem/f:SI (symbol_ref:SI ("a")) [0 a+0 S4 A32])) -1 (nil)
   (nil))

In the above code following part is still unclear to me

[0 a+0 S4 A32])) -1 (nil)
   (nil))

Following is the c code for which above rtl is generated :

int a;
main()
{
a=a+1;
}


thanks,
shahzad
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