On 10/14/2016 12:28 PM, Bernd Schmidt wrote:
On 10/12/2016 09:27 PM, Denys Vlasenko wrote:
Yes, something like "if max_skip >= func_size, temporarily lower
max_skip to func_size-1" (because otherwise we can create padding
bigger-or-equal to the entire function in size, which is stupid
- it's better to just put the function in that space).
This would be a nice.
That would be this patch. Bootstrapped and tested on x86_64-linux, ok?
Bernd
limit-align-v2b.diff
gcc/
* common.opt (flimit-function-alignment): New.
* doc/invoke.texi (-flimit-function-alignment): Document.
* emit-rtl.h (struct rtl_data): Add max_insn_address field.
* final.c (shorten_branches): Set it.
* varasm.c (assemble_start_function): Limit alignment if
requested.
gcc/testsuite/
* gcc.target/i386/align-limit.c: New test.
OK. Sorry for the long delay.
jeff
