[RX] : Wrong alignment of falign-labels=n
Sandeep Kumar Singh
Sandeep.Singh2@kpit.com
Sun Jun 8 03:08:00 GMT 2014
Hi,
I need some help,
The GNURX toolchain align wrong labels with option falign-labels=n, where n
is number of bytes. As per GCC manual, the GNU RX toolchain should align as
given below, The relationship between -falign-labels and expected .balign
output supposed to be:
-falign-labels=4 --> .balign 4
-falign-labels=8 --> .balign 8
-falign-labels=16 --> .balign 16
However, listed pseudo code was the like (without any optimization):
-falign-labels=1 --> .balign 2
-falign-labels=4 --> .balign 16
-falign-labels=8 --> .balign 256
-falign-labels=16 --> .balign 65536
Test Case
#include <stdio.h>
int max(int num1, int num2) ;
int main ()
{
int a = 100 ;
int b = 200 ;
int ret ;
ret = max(a, b) ;
printf( "Max value is : %d\n", ret ) ;
return 0 ;
}
int max(int num1, int num2)
{
int result ;
if (num1 > num2)
result = num1 ;
else
result = num2 ;
return result ;
}
Steps to reproduce:
$rx-elf-gcc -falign-labels=n(n=2,4,8,16,32) -S test.c
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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