[RX] : Wrong alignment of falign-labels=n

Sandeep Kumar Singh Sandeep.Singh2@kpit.com
Mon Jun 9 09:55:00 GMT 2014


Hi Chung-Ju Wu,

>> You can try to use align_labels_log to see if it generates
Thank you for reply on my query.
I have verified this behavior with native GCC and GNU ARM compiler,
RX,
$rx-elf-gcc  -falign-labels=4  test.c -msim -S
        .balign 16,3,1         <<== A
.L4:
        mov.L   8[r6], r10
        mov.L   r10, [r6]
        .balign 16,3,1         <<== A

ARM,
$arm-rz-eabi-gcc -falign-labels=4  test.c -S
        .p2align 2             <<== B
.L6:
        ldr     r3, [fp, #-20]
        str     r3, [fp, #-8]
        .p2align 2             <<== B

GCC,
gcc -falign-labels=4  test.c -S
        .p2align 2             <<== C
.L4:
        movl    12(%ebp), %eax
        movl    %eax, -4(%ebp)
        .p2align 2             <<== C

It seems wrong implementation of option '-falign-labels=n' for RX target.
Additionally, options 'align_labels_log' '-falign_labels_log', is showing below error, 
'unrecognized command line option'

Is anything I am doing wrong?

I appreciated for further help.

Regards,
Sandeep Kumar Singh
Senior Technical member staff, AESBU - Infotainment & Clusters
KPIT Technologies Limited
Phone: +91-20-66525000 | cell: +91-9730704579



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