[Bug debug/86463] Slow compile with -ggdb and optimizations

2018-07-11 Thread robert.j.farmer37 at gmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86463

--- Comment #4 from Rob Farmer  ---

gfortran -ggdb -O1 -fno-var-tracking -c largeFile.f90 0m2.628s
gfortran -ggdb -O2 -fno-var-tracking -c largeFile.f90 0m4.262s
gfortran -ggdb -O3 -fno-var-tracking -c largeFile.f90 0m21.706s

[Bug debug/86463] Slow compile with -ggdb and optimizations

2018-07-11 Thread rguenther at suse dot de 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86463

--- Comment #3 from rguenther at suse dot de  ---
On Wed, 11 Jul 2018, robert.j.farmer37 at gmail dot com wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86463
> 
> --- Comment #2 from Rob Farmer  ---
> 
> gfortran -ggdb -fno-var-tracking -c largeFile.f90 0m0.358s

Try with -O1, -O2 or -O3 please, without -O var-tracking is already
disabled.

[Bug debug/86463] Slow compile with -ggdb and optimizations

2018-07-11 Thread robert.j.farmer37 at gmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86463

--- Comment #2 from Rob Farmer  ---

gfortran -ggdb -fno-var-tracking -c largeFile.f90 0m0.358s

[Bug debug/86463] Slow compile with -ggdb and optimizations

2018-07-11 Thread rguenth at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86463

Richard Biener  changed:

   What|Removed |Added

   Keywords||compile-time-hog
 CC||rguenth at gcc dot gnu.org
  Component|fortran |debug
Version|unknown |8.1.1
  Known to fail||7.2.0, 8.1.1

--- Comment #1 from Richard Biener  ---
Can you try -ggdb -fno-var-tracking?