Comment # 7
on bug 139
from Johannes Pfau
I'm doing some experiments with D on microcontrollers lately (AVR 8 bit
hello-world(blinking LED) is working: https://github.com/jpf91/GDC/tree/microD
) and I came across this again.
This bugfix leads to the strange situation that zero initializers are a
performance penalty on these systems as RW memory is scarce, but intilizers
with one member not set to zero are put into .rodata and are therefore a better
option.
GCC puts all zero initialzed objects into rodata as well:
------------------------------------------------------------
struct Test
{
int a;
int b;
};
const struct Test tb = {0,0};
------------------------------------------------------------
.globl tb
.section .rodata
.align 4
.type tb, @object
.size tb, 8
tb:
.zero 8
------------------------------------------------------------
So are there any objections against reverting this commit?