HI,
I am trying to port a 32bit target in GCC 4.4.0. My target supports
big and little endian. This is selected using a target switch. So i
have defined the macro
#define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
Currently i have written pattens only for SImode moves. So GCC will
synthesize DImode patterns for me. The problem is that GCC is
generating the same code for both big and little endian i.e for the
following code
extern long long h;
extern long long j;
extern long long k;
int temp()
{
k = j+h;
return 0;
}
the compiler is generating the following code.
section .text local
ALIGN 16
GLOBAL _temp
_temp:
mov _h,d4
mov _h+4,d5
mov _j,d2
mov _j+4,d3
add d4,d2
adc d5,d3
mov d2,_k
mov d3,_k+4
ret
SIZE _temp,*-_temp
irrespective of which endian it is.
What could i be missing here? Should i add anything specific for this
in the back-end?
Regards,
Shafi
