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* [Bug analyzer/101980] New: [12 regressions] many test case failures after r12-3002
@ 2021-08-19 14:50 seurer at gcc dot gnu.org
2021-08-19 15:06 ` [Bug analyzer/101980] " dmalcolm at gcc dot gnu.org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: seurer at gcc dot gnu.org @ 2021-08-19 14:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
Bug ID: 101980
Summary: [12 regressions] many test case failures after
r12-3002
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:aef703cf982072427e74034f4c460a11c5e04b8e, r12-3002
FAIL: g++.dg/analyzer/malloc.C -std=c++14 (test for warnings, line 24)
FAIL: g++.dg/analyzer/malloc.C -std=c++17 (test for warnings, line 24)
FAIL: g++.dg/analyzer/malloc.C -std=c++2a (test for warnings, line 24)
FAIL: g++.dg/analyzer/malloc.C -std=c++98 (test for warnings, line 24)
FAIL: gcc.dg/analyzer/analyzer-verbosity-0.c (test for excess errors)
FAIL: gcc.dg/analyzer/analyzer-verbosity-0.c expected multiline pattern lines
24-60 not found: "\s*NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test_1': event 1.*\n \|.*\n \| NN \| calls_free_1 \(ptr\);.*\n
\| \| \^~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(1\) calling 'calls_free_1' from 'test_1'.*\n \|.*\n \+-->
'calls_free_1': event 2.*\n \|.*\n \| NN \| free
\(ptr\);.*\n \| \| \^~~~~~~~~~\n \| \| \|.*\n
\| \| \(2\) first 'free' here.*\n \|.*\n
<------\+.*\n \|.*\n 'test_1': events 3-4.*\n \|.*\n \| NN \|
calls_free_1 \(ptr\);.*\n \| \| \^~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(3\) returning to 'test_1' from
'calls_free_1'.*\n \|\.\.\.\.\.\..*\n \| NN \| calls_free_1
\(ptr\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n
\| \| \(4\) passing freed pointer 'ptr' in call to 'calls_free_1' from
'test_1'.*\n \|.*\n \+--> 'calls_free_1': event 5.*\n \|.*\n
\| NN \| free \(ptr\);.*\n \| \| \^~~~~~~~~~\n
\| \| \|.*\n \| \| \(5\) second 'free' here; first
'free' was at \(2\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/analyzer-verbosity-0.c expected multiline pattern lines
94-130 not found: " NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test_2': event 1.*\n \|.*\n \| NN \| calls_free_2 \(ptr\);.*\n
\| \| \^~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \|
\| \(1\) calling 'calls_free_2' from 'test_2'.*\n \|.*\n \+-->
'calls_free_2': event 2.*\n \|.*\n \| NN \| free
\(ptr\);.*\n \| \| \^~~~~~~~~~\n \| \| \|.*\n
\| \| \(2\) first 'free' here.*\n \|.*\n
<------\+.*\n \|.*\n 'test_2': events 3-4.*\n \|.*\n \| NN \|
calls_free_2 \(ptr\);.*\n \| \| \^~~~~~~~~~~~~~~~~~\n \|
\| \|.*\n \| \| \(3\) returning to 'test_2' from
'calls_free_2'.*\n \|\.\.\.\.\.\..*\n \| NN \| calls_free_2
\(ptr\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(4\) passing freed pointer 'ptr' in call to
'calls_free_2' from 'test_2'.*\n \|.*\n \+--> 'calls_free_2': event 5.*\n
\|.*\n \| NN \| free \(ptr\);.*\n \| \|
\^~~~~~~~~~\n \| \| \|.*\n \| \| \(5\)
second 'free' here; first 'free' was at \(2\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/analyzer-verbosity-1.c (test for excess errors)
FAIL: gcc.dg/analyzer/analyzer-verbosity-1.c expected multiline pattern lines
109-160 not found: " NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test_2': events 1-2.*\n \|.*\n \| NN \| void test_2 \(void \*ptr, int
a, int b\).*\n \| \| \^~~~~~\n \| \| \|.*\n \|
\| \(1\) entry to 'test_2'.*\n \|\.\.\.\.\.\..*\n \| NN \|
calls_free_2 \(ptr\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n \|
\| \|.*\n \| \| \(2\) calling 'calls_free_2' from
'test_2'.*\n \|.*\n \+--> 'calls_free_2': events 3-4.*\n \|.*\n
\| NN \| void calls_free_2 \(void \*ptr\).*\n \| \|
\^~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(3\) entry to 'calls_free_2'.*\n \| NN \| \{.*\n \| NN
\| free \(ptr\);.*\n \| \| ~~~~~~~~~~\n \| \|
\|.*\n \| \| \(4\) first 'free' here.*\n \|.*\n
<------\+.*\n \|.*\n 'test_2': events 5-6.*\n \|.*\n \| NN \|
calls_free_2 \(ptr\);.*\n \| \| \^~~~~~~~~~~~~~~~~~\n \|
\| \|.*\n \| \| \(5\) returning to 'test_2' from
'calls_free_2'.*\n \|\.\.\.\.\.\..*\n \| NN \| calls_free_2
\(ptr\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(6\) passing freed pointer 'ptr' in call to
'calls_free_2' from 'test_2'.*\n \|.*\n \+--> 'calls_free_2': events
7-8.*\n \|.*\n \| NN \| void calls_free_2 \(void
\*ptr\).*\n \| \| \^~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(7\) entry to 'calls_free_2'.*\n \|
NN \| \{.*\n \| NN \| free \(ptr\);.*\n \| \|
~~~~~~~~~~\n \| \| \|.*\n \| \| \(8\) second
'free' here; first 'free' was at \(4\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/analyzer-verbosity-1.c expected multiline pattern lines
24-75 not found: "\s*NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test_1': events 1-2.*\n \|.*\n \| NN \| void test_1 \(void \*ptr, int
a, int b\).*\n \| \| \^~~~~~\n \| \| \|.*\n \|
\| \(1\) entry to 'test_1'.*\n \|\.\.\.\.\.\..*\n \| NN \|
calls_free_1 \(ptr\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(2\) calling 'calls_free_1' from 'test_1'.*\n
\|.*\n \+--> 'calls_free_1': events 3-4.*\n \|.*\n \|
NN \| void calls_free_1 \(void \*ptr\).*\n \| \|
\^~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(3\) entry to 'calls_free_1'.*\n \| NN \| \{.*\n \| NN
\| free \(ptr\);.*\n \| \| ~~~~~~~~~~\n \| \|
\|.*\n \| \| \(4\) first 'free' here.*\n \|.*\n
<------\+.*\n \|.*\n 'test_1': events 5-6.*\n \|.*\n \| NN \|
calls_free_1 \(ptr\);.*\n \| \| \^~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(5\) returning to 'test_1' from
'calls_free_1'.*\n \|\.\.\.\.\.\..*\n \| NN \| calls_free_1
\(ptr\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n
\| \| \(6\) passing freed pointer 'ptr' in call to 'calls_free_1' from
'test_1'.*\n \|.*\n \+--> 'calls_free_1': events 7-8.*\n \|.*\n
\| NN \| void calls_free_1 \(void \*ptr\).*\n \| \|
\^~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(7\) entry to 'calls_free_1'.*\n \| NN \| \{.*\n \| NN
\| free \(ptr\);.*\n \| \| ~~~~~~~~~~\n \| \|
\|.*\n \| \| \(8\) second 'free' here; first 'free' was at
\(4\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/analyzer-verbosity-2.c (test for excess errors)
FAIL: gcc.dg/analyzer/analyzer-verbosity-2.c expected multiline pattern lines
120-189 not found: " NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test_2': events 1-4.*\n \|.*\n \| NN \| void test_2 \(void \*ptr, int
a, int b\).*\n \| \| \^~~~~~\n \| \| \|.*\n \|
\| \(1\) entry to 'test_2'.*\n \| NN \| \{.*\n \| NN \|
switch \(a\).*\n \| \| ~~~~~~\n \| \| \|.*\n \| \|
\(2\) following 'case 3:' branch\.\.\..*\n \|\.\.\.\.\.\..*\n \| NN \|
case 3:.*\n \| \| ~~~~\n \| \| \|.*\n \| \|
\(3\) \.\.\.to here.*\n \| NN \| calls_free_2 \(ptr\);.*\n \|
\| ~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(4\) calling 'calls_free_2' from 'test_2'.*\n \|.*\n \+-->
'calls_free_2': events 5-6.*\n \|.*\n \| NN \| void
calls_free_2 \(void \*ptr\).*\n \| \| \^~~~~~~~~~~~\n
\| \| \|.*\n \| \| \(5\) entry to
'calls_free_2'.*\n \| NN \| \{.*\n \| NN \| free
\(ptr\);.*\n \| \| ~~~~~~~~~~\n \| \| \|.*\n
\| \| \(6\) first 'free' here.*\n \|.*\n
<------\+.*\n \|.*\n 'test_2': events 7-10.*\n \|.*\n \| NN \|
calls_free_2 \(ptr\);.*\n \| \| \^~~~~~~~~~~~~~~~~~\n \|
\| \|.*\n \| \| \(7\) returning to 'test_2' from
'calls_free_2'.*\n \|\.\.\.\.\.\..*\n \| NN \| switch \(b\).*\n \|
\| ~~~~~~\n \| \| \|.*\n \| \| \(8\) following
'default:' branch\.\.\..*\n \| NN \| \{.*\n \| NN \|
default:.*\n \| \| ~~~~~~~\n \| \| \|.*\n \| \|
\(9\) \.\.\.to here.*\n \| NN \| calls_free_2 \(ptr\);.*\n \|
\| ~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(10\) passing freed pointer 'ptr' in call to 'calls_free_2' from
'test_2'.*\n \|.*\n \+--> 'calls_free_2': events 11-12.*\n
\|.*\n \| NN \| void calls_free_2 \(void \*ptr\).*\n \|
\| \^~~~~~~~~~~~\n \| \| \|.*\n \|
\| \(11\) entry to 'calls_free_2'.*\n \| NN \| \{.*\n
\| NN \| free \(ptr\);.*\n \| \| ~~~~~~~~~~\n
\| \| \|.*\n \| \| \(12\) second 'free' here; first
'free' was at \(6\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/analyzer-verbosity-2.c expected multiline pattern lines
24-86 not found: "\s*NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test_1': events 1-4.*\n \|.*\n \| NN \| void test_1 \(void \*ptr, int
a, int b\).*\n \| \| \^~~~~~\n \| \| \|.*\n \|
\| \(1\) entry to 'test_1'.*\n \| NN \| \{.*\n \| NN \| if
\(a\).*\n \| \| ~\n \| \| \|.*\n \| \|
\(2\) following 'true' branch \(when 'a != 0'\)\.\.\..*\n \| NN \|
calls_free_1 \(ptr\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(3\) \.\.\.to here.*\n \| \| \(4\)
calling 'calls_free_1' from 'test_1'.*\n \|.*\n \+--> 'calls_free_1':
events 5-6.*\n \|.*\n \| NN \| void calls_free_1 \(void
\*ptr\).*\n \| \| \^~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(5\) entry to 'calls_free_1'.*\n \|
NN \| \{.*\n \| NN \| free \(ptr\);.*\n \| \|
~~~~~~~~~~\n \| \| \|.*\n \| \| \(6\) first
'free' here.*\n \|.*\n <------\+.*\n \|.*\n 'test_1': events
7-10.*\n \|.*\n \| NN \| calls_free_1 \(ptr\);.*\n \| \|
\^~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(7\)
returning to 'test_1' from 'calls_free_1'.*\n \| NN \| .*\n \| NN \|
if \(b\).*\n \| \| ~\n \| \| \|.*\n \| \|
\(8\) following 'false' branch \(when 'b == 0'\)\.\.\..*\n
\|\.\.\.\.\.\..*\n \| NN \| calls_free_1 \(ptr\);.*\n \| \|
~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(9\) \.\.\.to
here.*\n \| \| \(10\) passing freed pointer 'ptr' in call to
'calls_free_1' from 'test_1'.*\n \|.*\n \+--> 'calls_free_1': events
11-12.*\n \|.*\n \| NN \| void calls_free_1 \(void
\*ptr\).*\n \| \| \^~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(11\) entry to 'calls_free_1'.*\n
\| NN \| \{.*\n \| NN \| free \(ptr\);.*\n \| \|
~~~~~~~~~~\n \| \| \|.*\n \| \| \(12\)
second 'free' here; first 'free' was at \(6\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/analyzer-verbosity-3.c (test for excess errors)
FAIL: gcc.dg/analyzer/analyzer-verbosity-3.c expected multiline pattern lines
120-189 not found: " NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test_2': events 1-4.*\n \|.*\n \| NN \| void test_2 \(void \*ptr, int
a, int b\).*\n \| \| \^~~~~~\n \| \| \|.*\n \|
\| \(1\) entry to 'test_2'.*\n \| NN \| \{.*\n \| NN \|
switch \(a\).*\n \| \| ~~~~~~\n \| \| \|.*\n \| \|
\(2\) following 'case 3:' branch\.\.\..*\n \|\.\.\.\.\.\..*\n \| NN \|
case 3:.*\n \| \| ~~~~\n \| \| \|.*\n \| \|
\(3\) \.\.\.to here.*\n \| NN \| calls_free_2 \(ptr\);.*\n \|
\| ~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(4\) calling 'calls_free_2' from 'test_2'.*\n \|.*\n \+-->
'calls_free_2': events 5-6.*\n \|.*\n \| NN \| void
calls_free_2 \(void \*ptr\).*\n \| \| \^~~~~~~~~~~~\n
\| \| \|.*\n \| \| \(5\) entry to
'calls_free_2'.*\n \| NN \| \{.*\n \| NN \| free
\(ptr\);.*\n \| \| ~~~~~~~~~~\n \| \| \|.*\n
\| \| \(6\) first 'free' here.*\n \|.*\n
<------\+.*\n \|.*\n 'test_2': events 7-10.*\n \|.*\n \| NN \|
calls_free_2 \(ptr\);.*\n \| \| \^~~~~~~~~~~~~~~~~~\n \|
\| \|.*\n \| \| \(7\) returning to 'test_2' from
'calls_free_2'.*\n \|\.\.\.\.\.\..*\n \| NN \| switch \(b\).*\n \|
\| ~~~~~~\n \| \| \|.*\n \| \| \(8\) following
'default:' branch\.\.\..*\n \| NN \| \{.*\n \| NN \|
default:.*\n \| \| ~~~~~~~\n \| \| \|.*\n \| \|
\(9\) \.\.\.to here.*\n \| NN \| calls_free_2 \(ptr\);.*\n \|
\| ~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(10\) passing freed pointer 'ptr' in call to 'calls_free_2' from
'test_2'.*\n \|.*\n \+--> 'calls_free_2': events 11-12.*\n
\|.*\n \| NN \| void calls_free_2 \(void \*ptr\).*\n \|
\| \^~~~~~~~~~~~\n \| \| \|.*\n \|
\| \(11\) entry to 'calls_free_2'.*\n \| NN \| \{.*\n
\| NN \| free \(ptr\);.*\n \| \| ~~~~~~~~~~\n
\| \| \|.*\n \| \| \(12\) second 'free' here; first
'free' was at \(6\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/analyzer-verbosity-3.c expected multiline pattern lines
24-86 not found: "\s*NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test_1': events 1-4.*\n \|.*\n \| NN \| void test_1 \(void \*ptr, int
a, int b\).*\n \| \| \^~~~~~\n \| \| \|.*\n \|
\| \(1\) entry to 'test_1'.*\n \| NN \| \{.*\n \| NN \| if
\(a\).*\n \| \| ~\n \| \| \|.*\n \| \|
\(2\) following 'true' branch \(when 'a != 0'\)\.\.\..*\n \| NN \|
calls_free_1 \(ptr\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(3\) \.\.\.to here.*\n \| \| \(4\)
calling 'calls_free_1' from 'test_1'.*\n \|.*\n \+--> 'calls_free_1':
events 5-6.*\n \|.*\n \| NN \| void calls_free_1 \(void
\*ptr\).*\n \| \| \^~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(5\) entry to 'calls_free_1'.*\n \|
NN \| \{.*\n \| NN \| free \(ptr\);.*\n \| \|
~~~~~~~~~~\n \| \| \|.*\n \| \| \(6\) first
'free' here.*\n \|.*\n <------\+.*\n \|.*\n 'test_1': events
7-10.*\n \|.*\n \| NN \| calls_free_1 \(ptr\);.*\n \| \|
\^~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(7\)
returning to 'test_1' from 'calls_free_1'.*\n \| NN \| .*\n \| NN \|
if \(b\).*\n \| \| ~\n \| \| \|.*\n \| \|
\(8\) following 'false' branch \(when 'b == 0'\)\.\.\..*\n
\|\.\.\.\.\.\..*\n \| NN \| calls_free_1 \(ptr\);.*\n \| \|
~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(9\) \.\.\.to
here.*\n \| \| \(10\) passing freed pointer 'ptr' in call to
'calls_free_1' from 'test_1'.*\n \|.*\n \+--> 'calls_free_1': events
11-12.*\n \|.*\n \| NN \| void calls_free_1 \(void
\*ptr\).*\n \| \| \^~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(11\) entry to 'calls_free_1'.*\n
\| NN \| \{.*\n \| NN \| free \(ptr\);.*\n \| \|
~~~~~~~~~~\n \| \| \|.*\n \| \| \(12\)
second 'free' here; first 'free' was at \(6\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/data-model-path-1.c (test for warnings, line 11)
FAIL: gcc.dg/analyzer/function-ptr-2.c (test for excess errors)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 29)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 30)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 36)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 37)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 43)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 55)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 56)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 64)
FAIL: gcc.dg/analyzer/malloc-callbacks.c (test for warnings, line 66)
FAIL: gcc.dg/analyzer/malloc-ipa-10.c (test for warnings, line 29)
FAIL: gcc.dg/analyzer/malloc-ipa-11.c (test for excess errors)
FAIL: gcc.dg/analyzer/malloc-ipa-11.c expected multiline pattern lines 32-95
not found: "\s*NN \| free \(victim\);.*\n \| \^~~~~~~~~~~~~\n 'test':
events 1-2.*\n \|.*\n \| NN \| void test \(void \*ptr\).*\n \|
\| \^~~~\n \| \| \|.*\n \| \| \(1\) entry to
'test'.*\n \|\.\.\.\.\.\..*\n \| NN \| may_call_free \(ptr\);.*\n
\| \| ~~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(2\)
calling 'may_call_free' from 'test'.*\n \|.*\n \+--> 'may_call_free':
events 3-6.*\n \|.*\n \| NN \| may_call_free \(void
\*victim\).*\n \| \| \^~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(3\) entry to 'may_call_free'.*\n \|
NN \| \{.*\n \| NN \| if \(some_condition \(\)\).*\n \|
\| ~\n \| \| \|.*\n \| \|
\(4\) following 'false' branch\.\.\..*\n \|\.\.\.\.\.\..*\n
\| NN \| free \(victim\);.*\n \| \| ~~~~~~~~~~~~~\n
\| \| \|.*\n \| \| \(5\) \.\.\.to here.*\n
\| \| \(6\) first 'free' here.*\n \|.*\n <------\+.*\n
\|.*\n 'test': events 7-8.*\n \|.*\n \| NN \| may_call_free
\(ptr\);.*\n \| \| \^~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n
\| \| \(7\) returning to 'test' from 'may_call_free'.*\n
\|\.\.\.\.\.\..*\n \| NN \| may_call_free \(ptr\);.*\n \| \|
~~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(8\) passing
freed pointer 'ptr' in call to 'may_call_free' from 'test'.*\n \|.*\n
\+--> 'may_call_free': events 9-12.*\n \|.*\n \| NN \|
may_call_free \(void \*victim\).*\n \| \| \^~~~~~~~~~~~~\n
\| \| \|.*\n \| \| \(9\) entry to 'may_call_free'.*\n
\| NN \| \{.*\n \| NN \| if \(some_condition \(\)\).*\n
\| \| ~\n \| \| \|.*\n \|
\| \(10\) following 'false' branch\.\.\..*\n \|\.\.\.\.\.\..*\n
\| NN \| free \(victim\);.*\n \| \|
~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(11\)
\.\.\.to here.*\n \| \| \(12\) second 'free' here; first
'free' was at \(6\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/malloc-ipa-13.c (test for warnings, line 26)
FAIL: gcc.dg/analyzer/malloc-ipa-13a.c (test for warnings, line 36)
FAIL: gcc.dg/analyzer/malloc-ipa-2.c (test for warnings, line 28)
FAIL: gcc.dg/analyzer/malloc-ipa-5.c (test for warnings, line 10)
FAIL: gcc.dg/analyzer/malloc-ipa-8-double-free.c (test for excess errors)
FAIL: gcc.dg/analyzer/malloc-ipa-8-double-free.c expected multiline pattern
lines 50-191 not found: "\s*NN \| free \(ptr\);.*\n \| \^~~~~~~~~~\n
'test': events 1-2.*\n \|.*\n \| NN \| void test \(int i\).*\n \|
\| \^~~~\n \| \| \|.*\n \| \| \(1\) entry to
'test'.*\n \| NN \| \{.*\n \| NN \| boxed_int \*obj =
make_boxed_int \(i\);.*\n \| \| ~~~~~~~~~~~~~~~~~~\n
\| \| \|.*\n \| \| \(2\)
calling 'make_boxed_int' from 'test'.*\n \|.*\n \+--> 'make_boxed_int':
events 3-4.*\n \|.*\n \| NN \| make_boxed_int \(int
i\).*\n \| \| \^~~~~~~~~~~~~~\n \| \| \|.*\n
\| \| \(3\) entry to 'make_boxed_int'.*\n \| NN \| \{.*\n
\| NN \| boxed_int \*result = \(boxed_int \*\)wrapped_malloc
\(sizeof \(boxed_int\)\);.*\n \| \|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \|
\(4\) calling 'wrapped_malloc' from 'make_boxed_int'.*\n \|.*\n
\+--> 'wrapped_malloc': events 5-6.*\n \|.*\n
\| NN \| void \*wrapped_malloc \(size_t size\).*\n \|
\| \^~~~~~~~~~~~~~\n \| \| \|.*\n
\| \| \(5\) entry to 'wrapped_malloc'.*\n
\| NN \| \{.*\n \| NN \| return malloc \(size\);.*\n
\| \| ~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(6\) allocated here.*\n
\|.*\n <------\+.*\n \|.*\n
'make_boxed_int': events 7-10.*\n \|.*\n \| NN \|
boxed_int \*result = \(boxed_int \*\)wrapped_malloc \(sizeof
\(boxed_int\)\);.*\n \| \|
\^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \|
\(7\) returning to 'make_boxed_int' from 'wrapped_malloc'.*\n \| NN
\| if \(!result\).*\n \| \| ~
.*\n \| \| \|.*\n \| \| \(8\) assuming
'result' is non-NULL.*\n \| \| \(9\) following 'false'
branch \(when 'result' is non-NULL\)\.\.\..*\n \| NN \| abort
\(\);.*\n \| NN \| result->i = i;.*\n \| \|
~~~~~~~~~~~~~ .*\n \| \| \|.*\n
\| \| \(10\) \.\.\.to here.*\n \|.*\n
<------\+.*\n \|.*\n 'test': events 11-12.*\n \|.*\n \| NN \|
boxed_int \*obj = make_boxed_int \(i\);.*\n \| \|
\^~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(11\) returning to 'test' from 'make_boxed_int'.*\n \| NN
\| .*\n \| NN \| free_boxed_int \(obj\);.*\n \| \|
~~~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(12\) calling
'free_boxed_int' from 'test'.*\n \|.*\n \+--> 'free_boxed_int': events
13-14.*\n \|.*\n \| NN \| free_boxed_int \(boxed_int
\*bi\).*\n \| \| \^~~~~~~~~~~~~~\n \| \| \|.*\n
\| \| \(13\) entry to 'free_boxed_int'.*\n \| NN \|
\{.*\n \| NN \| wrapped_free \(bi\);.*\n \| \|
~~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \| \(14\)
calling 'wrapped_free' from 'free_boxed_int'.*\n \|.*\n
\+--> 'wrapped_free': events 15-16.*\n \|.*\n
\| NN \| void wrapped_free \(void \*ptr\).*\n \| \|
\^~~~~~~~~~~~\n \| \| \|.*\n \|
\| \(15\) entry to 'wrapped_free'.*\n \| NN \| \{.*\n
\| NN \| free \(ptr\);.*\n \| \|
~~~~~~~~~~\n \| \| \|.*\n \| \|
\(16\) first 'free' here.*\n \|.*\n <------\+.*\n
\|.*\n 'free_boxed_int': event 17.*\n \|.*\n
\| NN \| wrapped_free \(bi\);.*\n \| \|
\^~~~~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(17\) returning to 'free_boxed_int' from 'wrapped_free'.*\n \|.*\n
<------\+.*\n \|.*\n 'test': events 18-19.*\n \|.*\n \| NN \|
free_boxed_int \(obj\);.*\n \| \| \^~~~~~~~~~~~~~~~~~~~\n \|
\| \|.*\n \| \| \(18\) returning to 'test' from
'free_boxed_int'.*\n \| NN \| .*\n \| NN \| free_boxed_int
\(obj\);.*\n \| \| ~~~~~~~~~~~~~~~~~~~~\n \| \| \|.*\n
\| \| \(19\) passing freed pointer 'obj' in call to 'free_boxed_int'
from 'test'.*\n \|.*\n \+--> 'free_boxed_int': events 20-21.*\n
\|.*\n \| NN \| free_boxed_int \(boxed_int \*bi\).*\n \|
\| \^~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(20\) entry to 'free_boxed_int'.*\n \| NN \| \{.*\n \|
NN \| wrapped_free \(bi\);.*\n \| \| ~~~~~~~~~~~~~~~~~\n
\| \| \|.*\n \| \| \(21\) passing freed pointer
'bi' in call to 'wrapped_free' from 'free_boxed_int'.*\n \|.*\n
\+--> 'wrapped_free': events 22-23.*\n \|.*\n
\| NN \| void wrapped_free \(void \*ptr\).*\n \| \|
\^~~~~~~~~~~~\n \| \| \|.*\n
\| \| \(22\) entry to 'wrapped_free'.*\n \| NN \|
\{.*\n \| NN \| free \(ptr\);.*\n \|
\| ~~~~~~~~~~\n \| \| \|.*\n \|
\| \(23\) second 'free' here; first 'free' was at \(16\).*\n
\|.*\n"
FAIL: gcc.dg/analyzer/malloc-ipa-8-unchecked.c (test for excess errors)
FAIL: gcc.dg/analyzer/malloc-ipa-8-unchecked.c expected multiline pattern lines
28-66 not found: "\s*NN \| result->i = i;.*\n \| ~~~~~~~~~~\^~~\n
'make_boxed_int': events 1-2.*\n \|.*\n \| NN \| make_boxed_int \(int
i\).*\n \| \| \^~~~~~~~~~~~~~\n \| \| \|.*\n \| \|
\(1\) entry to 'make_boxed_int'.*\n \| NN \| \{.*\n \| NN \|
boxed_int \*result = \(boxed_int \*\)wrapped_malloc \(sizeof
\(boxed_int\)\);.*\n \| \|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \| \(2\) calling
'wrapped_malloc' from 'make_boxed_int'.*\n \|.*\n \+--> 'wrapped_malloc':
events 3-4.*\n \|.*\n \| NN \| void \*wrapped_malloc
\(size_t size\).*\n \| \| \^~~~~~~~~~~~~~\n \|
\| \|.*\n \| \| \(3\) entry to
'wrapped_malloc'.*\n \| NN \| \{.*\n \| NN \| return
malloc \(size\);.*\n \| \| ~~~~~~~~~~~~~\n \|
\| \|.*\n \| \| \(4\) this call could
return NULL.*\n \|.*\n <------\+.*\n \|.*\n 'make_boxed_int':
events 5-6.*\n \|.*\n \| NN \| boxed_int \*result = \(boxed_int
\*\)wrapped_malloc \(sizeof \(boxed_int\)\);.*\n \| \|
\^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n \| \|
\|.*\n \| \|
\(5\) possible return of NULL to 'make_boxed_int' from 'wrapped_malloc'.*\n
\| NN \| result->i = i;.*\n \| \| ~~~~~~~~~~~~~
.*\n \| \| \|.*\n \| \| \(6\)
'result' could be NULL: unchecked value from \(4\).*\n \|.*\n"
FAIL: gcc.dg/analyzer/pr101503.c (internal compiler error)
FAIL: gcc.dg/analyzer/pr101503.c (test for excess errors)
FAIL: gcc.dg/analyzer/sensitive-1.c (test for warnings, line 50)
FAIL: gcc.dg/analyzer/sensitive-1.c (test for warnings, line 60)
FAIL: gfortran.dg/analyzer/pr96949.f90 -O (internal compiler error)
FAIL: gfortran.dg/analyzer/pr96949.f90 -O (test for excess errors)
commit aef703cf982072427e74034f4c460a11c5e04b8e (HEAD, refs/bisect/bad)
Author: Ankur Saini <arsenic@sourceware.org>
Date: Thu Jul 29 15:48:07 2021 +0530
analyzer: detect and analyze calls via function pointer
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From: dmalcolm at gcc dot gnu.org @ 2021-08-19 15:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
David Malcolm <dmalcolm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2021-08-19
Ever confirmed|0 |1
--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Confirmed
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2021-08-19 15:06 ` [Bug analyzer/101980] " dmalcolm at gcc dot gnu.org
@ 2021-08-20 8:28 ` rguenth at gcc dot gnu.org
2021-08-21 5:04 ` cvs-commit at gcc dot gnu.org
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From: rguenth at gcc dot gnu.org @ 2021-08-20 8:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.0
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2021-08-19 15:06 ` [Bug analyzer/101980] " dmalcolm at gcc dot gnu.org
2021-08-20 8:28 ` rguenth at gcc dot gnu.org
@ 2021-08-21 5:04 ` cvs-commit at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2021-08-21 5:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Ankur saini <arsenic@gcc.gnu.org>:
https://gcc.gnu.org/g:e92d0ff6b5e6d4b95c04fc3e326d40efeb136086
commit r12-3052-ge92d0ff6b5e6d4b95c04fc3e326d40efeb136086
Author: Ankur Saini <arsenic@sourceware.org>
Date: Thu Aug 19 19:54:56 2021 +0530
analyzer: Fix PR analyzer/101980
2021-08-19 Ankur Saini <arsenic@sourceware.org>
gcc/analyzer/ChangeLog:
PR analyzer/101980
* diagnostic-manager.cc
(diagnostic_manager::prune_for_sm_diagnostic)<case EK_CALL_EDGE>:
Use
caller_model only when the supergraph_edge doesn't exixt.
(diagnostic_manager::prune_for_sm_diagnostic)<case EK_RETURN_EDGE>:
Likewise.
* engine.cc (exploded_graph::create_dynamic_call): Rename to...
(exploded_graph::maybe_create_dynamic_call): ...this, return call
creation status.
(exploded_graph::process_node): Handle calls which were not
dynamically
discovered.
* exploded-graph.h (exploded_graph::create_dynamic_call): Rename
to...
(exploded_graph::maybe_create_dynamic_call): ...this.
* region-model.cc (region_model::update_for_gcall): New param, use
it
to push call to frame.
(region_model::update_for_call_superedge): Pass callee function to
update_for_gcall.
* region-model.h (region_model::update_for_gcall): New param.
gcc/testsuite/ChangeLog:
PR analyzer/101980
* gcc.dg/analyzer/function-ptr-2.c : Add issue for double 'free'.
* gcc.dg/analyzer/malloc-callbacks.c : Fix xfail testcase.
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From: arsenic at gcc dot gnu.org @ 2021-08-23 14:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
Ankur Saini <arsenic at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Assignee|dmalcolm at gcc dot gnu.org |arsenic at gcc dot gnu.org
Status|NEW |RESOLVED
--- Comment #3 from Ankur Saini <arsenic at gcc dot gnu.org> ---
Fixed after the following commits:
e92d0ff6b5e6d4b95c04fc3e326d40efeb136086
537878152ded8b7d271333b803b36c27a9aea8d2
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug analyzer/101980] [12 regressions] many test case failures after r12-3002
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2021-08-23 14:29 ` arsenic at gcc dot gnu.org
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From: hp at gcc dot gnu.org @ 2021-08-24 23:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hp at gcc dot gnu.org
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #4 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
(In reply to Ankur Saini from comment #3)
> Fixed after the following commits:
> e92d0ff6b5e6d4b95c04fc3e326d40efeb136086
> 537878152ded8b7d271333b803b36c27a9aea8d2
g++.dg/analyzer/pr96641.C, a regression introduced by this commit (or unlikely,
another commit in the series 640df4ef815a..f0fca213bc52), remains to be fixed.
It seems to fail everywhere:
s390x-ibm-linux-gnu
https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716425.html
x86_64-pc-linux-gnu 3c496e92d795a8fe5c527e3c5b5a6606669ae50d
https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716406.html
powerpc64-unknown-linux-gnu 6d692ef43b2b3368c92c3fb757c7884fc94ee627
https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716400.html
powerpc64le-unknown-linux-gnu 3c496e92d795a8fe5c527e3c5b5a6606669ae50d
https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716428.html
i686-pc-linux-gnu 6e5401e87d02919b0594e04f828892deef956407
https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716332.html
powerpc-ibm-aix7.2.3.0 0312e263b6afa5b545c2d3b7c7ac5295ecaa7fa8
https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716308.html
m68k-unknown-linux-gnu 192d4edd15c
https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716297.html
For cris-elf, I see this in g++.log:
/X/gcc/testsuite/g++.dg/analyzer/pr96641.C:8:3: warning: analysis bailed out
early (91 'after-snode' enodes; 228 enodes) [-Wanalyzer-too-complex]
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From: arsenic at gcc dot gnu.org @ 2021-08-25 8:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
--- Comment #5 from Ankur Saini <arsenic at gcc dot gnu.org> ---
(In reply to Hans-Peter Nilsson from comment #4)
> (In reply to Ankur Saini from comment #3)
> > Fixed after the following commits:
> > e92d0ff6b5e6d4b95c04fc3e326d40efeb136086
> > 537878152ded8b7d271333b803b36c27a9aea8d2
>
> g++.dg/analyzer/pr96641.C, a regression introduced by this commit (or
> unlikely, another commit in the series 640df4ef815a..f0fca213bc52), remains
> to be fixed.
> It seems to fail everywhere:
>
> s390x-ibm-linux-gnu
> https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716425.html
>
> x86_64-pc-linux-gnu 3c496e92d795a8fe5c527e3c5b5a6606669ae50d
> https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716406.html
>
> powerpc64-unknown-linux-gnu 6d692ef43b2b3368c92c3fb757c7884fc94ee627
> https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716400.html
>
> powerpc64le-unknown-linux-gnu 3c496e92d795a8fe5c527e3c5b5a6606669ae50d
> https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716428.html
>
> i686-pc-linux-gnu 6e5401e87d02919b0594e04f828892deef956407
> https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716332.html
>
> powerpc-ibm-aix7.2.3.0 0312e263b6afa5b545c2d3b7c7ac5295ecaa7fa8
> https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716308.html
>
> m68k-unknown-linux-gnu 192d4edd15c
> https://gcc.gnu.org/pipermail/gcc-testresults/2021-August/716297.html
>
> For cris-elf, I see this in g++.log:
> /X/gcc/testsuite/g++.dg/analyzer/pr96641.C:8:3: warning: analysis bailed out
> early (91 'after-snode' enodes; 228 enodes) [-Wanalyzer-too-complex]
Thanks for pointing this out.
This is due to the fact that analyzer doesn't have a maximum recursion limit
when analysing dynamically discovered calls ( vfunc calls or calls that happen
via a function pointer ).
I have sent a patch on the patches list which should fix this problem.
- - -
Patch : https://gcc.gnu.org/pipermail/gcc-patches/2021-August/578091.html
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2021-08-25 8:32 ` arsenic at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2021-08-25 13:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Ankur saini <arsenic@gcc.gnu.org>:
https://gcc.gnu.org/g:43a5d46feabd93ba78983919234f05f5fc9a0982
commit r12-3139-g43a5d46feabd93ba78983919234f05f5fc9a0982
Author: Ankur Saini <arsenic@sourceware.org>
Date: Wed Aug 25 12:33:06 2021 +0530
analyzer: Impose recursion limit on indirect calls.
2021-08-25 Ankur Saini <arsenic@sourceware.org>
gcc/analyzer/ChangeLog:
PR analyzer/101980
* engine.cc (exploded_graph::maybe_create_dynamic_call): Don't
create
calls if max recursion limit is reached.
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@ 2021-08-25 13:33 ` arsenic at gcc dot gnu.org
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8 siblings, 0 replies; 10+ messages in thread
From: arsenic at gcc dot gnu.org @ 2021-08-25 13:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
Ankur Saini <arsenic at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution|--- |FIXED
--- Comment #7 from Ankur Saini <arsenic at gcc dot gnu.org> ---
Should be fixed after the above commit.
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2021-08-25 13:33 ` arsenic at gcc dot gnu.org
@ 2021-08-25 21:08 ` hp at gcc dot gnu.org
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From: hp at gcc dot gnu.org @ 2021-08-25 21:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101980
--- Comment #8 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
(In reply to Ankur Saini from comment #7)
> Should be fixed after the above commit.
Confirmed (at 43a5d46feabd). Thanks for the prompt fix.
^ permalink raw reply [flat|nested] 10+ messages in thread
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