https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116267
Bug ID: 116267
Summary: Sanitizer extremely slow
Product: gcc
Version: 11.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
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 performance issue with -fsanitize.
$ g++ -ftime-report -O0 -Wall -Wextra -faligned-new -fcf-protection=none
-Wno-bool-operation -Wno-shadow -Wno-sign-compare -Wno-tautological-compare
-Wno-uninitialized -Wno-unused-but-set-parameter -Wno-unused-but-set-variable
-Wno-unused-parameter -Wno-unused-variable -c -o Vt_case_unique_many__ALL.o
Vt_case_unique_many__ALL.ii
TOTAL : 0.81 0.92 1.73 159M
time g++ -ftime-report -fsanitize=address,undefined -O0 -Wall -Wextra
-faligned-new -fcf-protection=none -Wno-bool-operation -Wno-shadow
-Wno-sign-compare -Wno-tautological-compare -Wno-uninitialized
-Wno-unused-but-set-parameter -Wno-unused-but-set-variable
-Wno-unused-parameter -Wno-unused-variable -c -o Vt_case_unique_many__ALL.o
Vt_case_unique_many__ALL.ii
<Finishes in approx 2 hours>
