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analyzer: add test coverage for PR 95000

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PR analyzer/95000 isn't fixed yet; add test coverage with XFAILs.

gcc/testsuite/ChangeLog:
	PR analyzer/95000
	* gcc.dg/analyzer/pr95000-1.c: New test.

Signed-off-by: David Malcolm <dmalcolm@redhat.com>
This commit is contained in:
David Malcolm 2022-03-15 17:56:29 -04:00
parent a58e342d88
commit d1d95846e3
1 changed files with 38 additions and 0 deletions
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38
gcc/testsuite/gcc.dg/analyzer/pr95000-1.c Normal file
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#include "analyzer-decls.h"
void test_1 (char* x)
{
char* y=0;
switch (*x) {
case 'a': /* { dg-message "to here" } */
y="foo";
case 'b':
if (*x=='a') *y='b'; /* { dg-bogus "dereference of NULL 'y'" "deref of null (PR analyzer/95000)" { xfail *-*-* } } */
/* { dg-warning "write to string literal" "write to string literal" { target *-*-* } .-1 } */
}
}
void test_switch_char(char x) {
switch (x) {
case 'b':
__analyzer_eval (x == 'b'); /* { dg-warning "TRUE" "expected" { xfail *-*-* } } */
/* { dg-bogus "UNKNOWN" "status quo (PR analyzer/95000)" { xfail *-*-* } .-1 } */
}
}
void test_switch_int(int x) {
switch (x) {
case 97:
__analyzer_eval (x == 97); /* { dg-warning "TRUE" } */
}
}
void test_if_char(char x) {
if (x == 'b')
__analyzer_eval (x == 'b'); /* { dg-warning "TRUE" } */
}
void test_if_int(int x) {
if (x == 97)
__analyzer_eval (x == 97); /* { dg-warning "TRUE" } */
}