Hello List,
I'm new to gcc internals. As part of an experiment, I copied the i386 back-end
in gcc 4.2.2 to create my own i386-like target arch. At some point, my hacking
caused my i386 to produce assembly with two memory touching operands in one
instruction, like this:
movl 12(%ebp), -44(%ebp)
movl 16(%ebp), -40(%ebp)
movl 20(%ebp), -36(%ebp)
I compiled with -O0.
I need to fix this back to i386 style with only 1 memory reference allowed per
instruction. After a day looking, I'm unable to determine what I did wrong
either in the i386.md or i386.c files to cause this. My own i386 is quite
hacked up, so just doing a diff with the original file was too noisy to give
much clue.
Can anyone please offer a pointer as to where RTL with two memory references is
split in the i386 back end?
Thanks you,
-steve
