luke
/
verilator
mirror of https://github.com/verilator/verilator.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Commentary

This commit is contained in:
Wilson Snyder 2013-01-11 07:05:25 -05:00
parent 786bc4b04f
commit c00603704e
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
bin/verilator
View File

@ -1321,7 +1321,8 @@ OPT_FAST and OPT_SLOW affect. For best results, use OPT="-O2", and link
with "-static". Nearly the same results can be had with much better
compile times with OPT_FAST="-O1 -fstrict-aliasing". Higher optimization
such as "-O3" may help, but gcc compile times may be excessive under O3 on
even medium sized designs.
even medium sized designs. Alternatively, some larger designs report
better performance using "-Os".
Unfortunately, using the optimizer with SystemC files can result in
compiles taking several minutes. (The SystemC libraries have many little