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Re: gcc4.4.1 related doubt
trisha yad <trisha1march@gmail.com> writes:
> I am attaching one sample program.
>
> 1. arm-linux-gnueabi-gcc -fno-optimize-sibling-calls -O0 test.c
> 2. arm-linux-gnueabi-gcc -fno-optimize-sibling-calls -O2 test.c
> arm-linux-gnueabi-nm of O0 is log1
> arm-linux-gnueabi-nm of O2 is log
>
>
> I am attaching o/p of command using option --save-temps i.e in file test.s
> arm-linux-gnueabi-gcc -fno-optimize-sibling-calls --save-temps -O2 test.c
I don't understand how the .c file you showed can produce the .s file
that you showed. In the .c file, main calls ABC. In the .s file, it
does not. I don't see how the optimizer could remove that call.
I do see the T.12 symbol in the assembler source. However, I don't
know where it came from. I don't see when I compile your C file with
a recent ARM gcc.
Can you explain why the T.12 symbol is a problem?
Ian