On July 5, 2021 11:21:02 PM UTC, Nikita Zlobin <nick877...@gmail.com> wrote: >Check for double dash may be done in for loop. > >arg.h: https://pastebin.com/c4FQcrtH > >I tried to compare objdump'ed compiler output with different options - >filesizes are same, though difference exists. > >There are diffs for 3 -O levels: -O3, -O2, -Os. > >For -O3: > >--- tabbed-O3-1.o.objdump 2021-07-05 21:13:23.601297273 +0500 >+++ tabbed-O3-2.o.objdump 2021-07-05 21:13:57.461296518 +0500 >@@ -2327,10 +2327,10 @@ > cmpb $0x2d,(%rbx) > jne <main+0x135> > movzbl 0x1(%rbx),%eax >- test %al,%al >- je <main+0x135> > cmp $0x2d,%al > je <main+0xcd0> >+ test %al,%al >+ je <main+0x135> > mov 0x0(%rip),%r11d # <main+0x84> > add $0x1,%rbx > xor %r9d,%r9d > >For -O2: https://pastebin.com/4WR3L8dc >With -Os: https://pastebin.com/09LNut3R >tabbed.o with -O2: https://pastebin.com/yb0jCE6W
Might I recommend using https://0x0.st or https://ix.io for pastebins. You can read and write to them using curl, or still use the browser but without the extra fat and JS of pastebin.com. --- Sebastian LaVine | https://smlavine.com
