Hi, On Thu, 30 Nov 2017, David Malcolm wrote:
> -fverbose-asm is on the border of compiler-debugging vs end-user usage. I have yet to see a relevant percentage of end-users who even know what assembler is. On the gcc.*@ and kernel.* mailing lists, sure. But Joe Randomapp? > FWIW an improvement to -fverbose-asm was explicitly mentioned in the > gcc 7 release notes: > https://gcc.gnu.org/gcc-7/changes.html > and I've seen at least some end-users comment favorably on that change; > this was: > https://gcc.gnu.org/ml/gcc-patches/2016-08/msg01051.html > which was originally a "-fasm-show-source" option. Yes. I think this was actually a disservice to readability of -fverbose-asm (sorry!) and would have preferred a suboption as well (but wouldn't have complained if with-sources would be the default). First, it clutters the asm instructions with intervening non-aligned lines (and left-hanging even, giving more visual importance to them instead of what is actually important, which for a switch named verbose-asm seems the asm to me) and second it has the same problem as debugging scheduled code: jumping around crazy and stating the same source line multiple times. (Basically the same reason 'objdump -dS' is similarly ugly, and why the -S therein is an extra switch). Luckily -dp still works as expected, so, ... well, I guess I'll live, and if not there's "grep -v '^#.*:[0-9]\+:'" :) Ciao, Michael.
