https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92108
Bug ID: 92108
Summary: [10 regression] r276645 triggers excess errors for
gcc.dg/Wstringop-overflow-17.c
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
Executing on host: /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -O2 -Wall -S -o Wstringop-overflow-17.s (timeout
= 300)
spawn -ignore SIGHUP /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -O2 -Wall -S -o Wstringop-overflow-17.s
In function 'copy_n',
inlined from 'call_copy_n' at
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:18:3:
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:9:10:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c: In
function 'call_copy_n':
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:17:8:
note: destination object declared here
In function 'copy_n',
inlined from 'call_copy_n' at
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:18:3:
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:9:10:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c: In
function 'call_copy_n':
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:17:8:
note: destination object declared here
In function 'copy_n',
inlined from 'call_copy_n' at
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:18:3:
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:9:10:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c: In
function 'call_copy_n':
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:17:8:
note: destination object declared here
In function 'copy_n',
inlined from 'call_copy_n' at
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:18:3:
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:9:10:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c: In
function 'call_copy_n':
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:17:8:
note: destination object declared here
In function 'copy_n',
inlined from 'call_copy_n' at
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:18:3:
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:10:6:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c: In
function 'call_copy_n':
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:17:8:
note: destination object declared here
PASS: gcc.dg/Wstringop-overflow-17.c (test for warnings, line 10)
PASS: gcc.dg/Wstringop-overflow-17.c (test for warnings, line 17)
FAIL: gcc.dg/Wstringop-overflow-17.c (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:9:10:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:9:10:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:9:10:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c:9:10:
warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
testcase /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/dg.exp completed in 1
seconds
=== gcc Summary ===
# of expected passes 2
# of unexpected failures 1
