[Bug gas/31654] gas: Bad SFrame information when assembling with listing

[indu.bhagat at oracle dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=31654

--- Comment #2 from Indu Bhagat <indu.bhagat at oracle dot com> ---
This is repeatable on other arches too using binutils-gdb master.

One aarch64:

$ cat test.s 
        .cfi_startproc
        .long 0
        .cfi_def_cfa_offset 8
        .long 0
        .cfi_rel_offset 29, 16
        .cfi_rel_offset 30, 24
        .long 0
        .cfi_endproc


$ as --gsframe test.s -o test.o
$ objdump --sframe test.o
    ...
    func idx [0]: pc = 0x0, size = 12 bytes
    STARTPC         CFA       FP        RA           
    0000000000000000  sp+0      u         u            
    0000000000000004  sp+8      u         u            
    0000000000000008  sp+8      c+8       c+16         

$ as --gsframe -alh test.s -o test.o
   ...
$ objdump --sframe test.o
    ...
    func idx [0]: pc = 0x0, size = 12 bytes
    STARTPC         CFA       FP        RA           
    0000000000000000  sp+8      c+8       c+16         

Similar testcase can be easily arrived at for x86_64 as well.

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