https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101555
--- Comment #1 from Wilson Snyder ---
Created attachment 51187
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51187=edit
Examples and runtimes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101555
Bug ID: 101555
Summary: Compile slowdown in tree PRE
Product: gcc
Version: 9.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99579
Wilson Snyder changed:
What|Removed |Added
Status|RESOLVED|CLOSED
--- Comment #3 from Wilson
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99579
--- Comment #2 from Wilson Snyder ---
So glibc where to report this then?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99579
Bug ID: 99579
Summary: gmon.out not created with -O0 but otherwise is
Product: gcc
Version: 9.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97623
--- Comment #12 from Wilson Snyder ---
Created attachment 49515
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49515=edit
Larger testcase
Attached is the larger testcase.
time g++ -O2 -c -o Vtb_top__3_ii.o Vtb_top__3_ii.cpp
user
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97623
--- Comment #10 from Wilson Snyder ---
Running -O2 -fno-code-hoisting -ftime-report
and I deleted the 0%/0%/0% lines:
Time variable usr sys wall
GGC
phase parsing
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97623
--- Comment #7 from Wilson Snyder ---
Thanks for the quick service. I can't easily try GCC trunk, but:
-O2
compile 98.61s
runtime 25.76s
-O2 -fno-code-hoisting
compile 40.13s
runtime 26.40s (+2.5%)
-Os
compile 4.25s
runtime
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97623
--- Comment #1 from Wilson Snyder ---
P.S. Note gcc -v and related information are comments at top of the attachment.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97623
Bug ID: 97623
Summary: Extremely slow O2 compile (>>O(n^2))
Product: gcc
Version: 9.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
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