Here's a case where the C++ front-end is still slow, despite the great
improvements in GCC 4. This is preprocessed with Apple's 4.x compiler.
From, 'g++ IC.ii -ftime-report -O0 -o /dev/null -S', I get:
parser : 1.84 (27%) usr 1.48 (29%) sys 3.22 (27%) wall
name lookup : 1.47 (22%) usr 2.59 (51%) sys 4.06 (34%) wall
...
TOTAL : 6.73 5.04 11.88
On a somewhat scary note, compiling without -ftime-report speeds up the
compilation from 0:11.95 to 0:04.39. This leads me to believe that the
-ftime-report numbers can't be trusted very much.
More testcases are always good right?
-Chris
--
Summary: C++ front-end can still be sped up
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: sabre at nondot dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24208
