[Bug sanitizer/116267] Sanitizer extremely slow

2024-08-07 Thread wsnyder at wsnyder dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116267 --- Comment #2 from Wilson Snyder --- Created attachment 58856 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58856&action=edit Vt_case_uniq_many__ALL.ii.gz

[Bug sanitizer/116267] New: Sanitizer extremely slow

2024-08-07 Thread wsnyder at wsnyder dot org via Gcc-bugs
Assignee: unassigned at gcc dot gnu.org Reporter: wsnyder at wsnyder dot org CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org, jakub at gcc dot gnu.org, kcc at gcc dot gnu.org Target Milestone: --- The attached exposes some O(n^2) or other

[Bug c++/101555] Compile slowdown in tree PRE

2021-07-21 Thread wsnyder at wsnyder dot org via Gcc-bugs
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&action=edit Examples and runtimes

[Bug c++/101555] New: Compile slowdown in tree PRE

2021-07-21 Thread wsnyder at wsnyder dot org via Gcc-bugs
++ Assignee: unassigned at gcc dot gnu.org Reporter: wsnyder at wsnyder dot org Target Milestone: --- Running g++ (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0 as g++ -I. -c -Os -ftime-report -o /dev/null Vara___024root__114_0.cpp takes 297 CPU seconds. On clang version 10.0.0-4ubuntu1 it

[Bug middle-end/99579] gmon.out not created with -O0 but otherwise is

2021-03-13 Thread wsnyder at wsnyder dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99579 Wilson Snyder changed: What|Removed |Added Status|RESOLVED|CLOSED --- Comment #3 from Wilson Snyder

[Bug middle-end/99579] gmon.out not created with -O0 but otherwise is

2021-03-13 Thread wsnyder at wsnyder dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99579 --- Comment #2 from Wilson Snyder --- So glibc where to report this then?

[Bug c++/99579] New: gmon.out not created with -O0 but otherwise is

2021-03-13 Thread wsnyder at wsnyder dot org via Gcc-bugs
++ Assignee: unassigned at gcc dot gnu.org Reporter: wsnyder at wsnyder dot org Target Milestone: --- Created attachment 50382 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50382&action=edit Testcase == Description Type "make" in this tarball's

[Bug tree-optimization/97623] [9/10/11 Regression] Extremely slow O2 compile (>>O(n^2))

2020-11-06 Thread wsnyder at wsnyder dot org via Gcc-bugs
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&action=edit Larger testcase Attached is the larger testcase. time g++ -O2 -c -o Vtb_top__3_ii.o Vtb_top__3_ii.cpp user

[Bug tree-optimization/97623] [9/10/11 Regression] Extremely slow O2 compile (>>O(n^2))

2020-11-05 Thread wsnyder at wsnyder dot org via Gcc-bugs
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

[Bug tree-optimization/97623] [9/10/11 Regression] Extremely slow O2 compile (>>O(n^2))

2020-10-30 Thread wsnyder at wsnyder dot org via Gcc-bugs
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 23.42s

[Bug c++/97623] Extremely slow O2 compile (>>O(n^2))

2020-10-28 Thread wsnyder at wsnyder dot org via Gcc-bugs
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.

[Bug c++/97623] New: Extremely slow O2 compile (>>O(n^2))

2020-10-28 Thread wsnyder at wsnyder dot org via Gcc-bugs
ent: c++ Assignee: unassigned at gcc dot gnu.org Reporter: wsnyder at wsnyder dot org Target Milestone: --- Created attachment 49461 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49461&action=edit slow.cpp The attached program compiles very slowly with -O2. It is fa

[Bug c/83309] New: Structure elements have O(n^2) compile time slowdown

2017-12-06 Thread wsnyder at wsnyder dot org
Component: c Assignee: unassigned at gcc dot gnu.org Reporter: wsnyder at wsnyder dot org Target Milestone: --- Created attachment 42804 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42804&action=edit Example program to make programs showing the slowdown A program wi

[Bug c++/82797] New: Suggest -Wshadow suppression for nested if/else

2017-11-01 Thread wsnyder at wsnyder dot org
: c++ Assignee: unassigned at gcc dot gnu.org Reporter: wsnyder at wsnyder dot org Target Milestone: --- Created attachment 42518 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42518&action=edit shadow.cpp I would like to suggest that code similar to the followin

[Bug driver/45166] New: gcc -MD misses multiple command line source files

2010-08-02 Thread wsnyder at wsnyder dot org
- Summary: gcc -MD misses multiple command line source files Product: gcc Version: 4.4.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: driver AssignedTo: unassigned at gcc dot gnu dot org Reported