https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69635
Bug ID: 69635
Summary: 4x increase of build time [4.9 -> 6.0]
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: h2+bugs at fsfe dot org
Target Milestone: ---
A project I develop that makes heavy use of the template preprocessor, inlining
et cetera is seeing a dramatic increase of build time. As I can't narrow it
down to a file, I can only point you to the project:
http://github.com/seqan/lambda
Howto reproduce:
cmake -DCMAKE_CXX_COMPILER=/path/to/g++ /path/to/gitclone
make lambda
It's only one translation unit and it takes roughly 12 minutes on my machine
with 4.9 (which is already quite slow), but it takes 44min(!) with
6.0.0.s20160131. So apparently there is some regression somewhere...
If there is anything I can do to help track this down, please let me know.
Thank you for your work on GCC in general, it is very appreciated!
