On 04/10/2016 00:40, waltdnes wrote: > On Mon, Oct 03, 2016 at 11:06:13AM +0200, Mason wrote > >> It does look like 'atom' and 'bonnell' are similar. >> >> I don't have 4.9 handy, try this: >> >> echo | gcc -xc -S -fverbose-asm -march=atom -o v1.s - >> echo | gcc -xc -S -fverbose-asm -march=bonnell -o v2.s - >> diff -u v1.s v2.s >> >> Maybe they are identical? > > Thanks for the idea. I had to do it a bit differently to get it to > work. I took a simple "Hello World" program, and ran... For my personal education, can you tell me in what way the commands above failed to work? (You did copy the trailing dash, right?) > gcc -xc -S -fverbose-asm -march=atom -o v1.s hello.c > gcc -xc -S -fverbose-asm -march=bonnell -o v2.s hello.c For the record, -xc means "the input is C source code". It is only required when compiling stdin, not when providing a .c file (gcc has a trivial heuristic for .c files) Regards.
