PR analyzer/107158 reports an ICE when using
-fanalyzer -fanalyzer-call-summaries
on a particular source file.
It turns out I just fixed this ICE in r13-3094-g6832c95c0e1a58.
This followup patch adds a somewhat reduced reproducer as a regression
test. Unfortunately, although the ICE is fixed, there are two false
positives from -Wanalyzer-malloc-leak on the test case, so I'm going to
use PR analyzer/107158 for tracking those false positives.
Tested on x86_64-pc-linux-gnu.
Pushed to trunk as r13-3096-gef878564140cbc.
gcc/testsuite/ChangeLog:
PR analyzer/107158
* gcc.dg/analyzer/call-summaries-pr107158.c: New test.
Signed-off-by: David Malcolm <dmalc...@redhat.com>
---
.../gcc.dg/analyzer/call-summaries-pr107158.c | 83 +++++++++++++++++++
1 file changed, 83 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/analyzer/call-summaries-pr107158.c
diff --git a/gcc/testsuite/gcc.dg/analyzer/call-summaries-pr107158.c
b/gcc/testsuite/gcc.dg/analyzer/call-summaries-pr107158.c
new file mode 100644
index 00000000000..54f442f0ad4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/analyzer/call-summaries-pr107158.c
@@ -0,0 +1,83 @@
+/* { dg-additional-options "-fanalyzer-call-summaries" } */
+
+typedef __SIZE_TYPE__ size_t;
+enum { _ISspace = ((5) < 8 ? ((1 << (5)) << 8) : ((1 << (5)) >> 8)) };
+extern const unsigned short int **__ctype_b_loc(void)
+ __attribute__((__nothrow__, __leaf__, __const__));
+extern void *malloc(size_t __size)
+ __attribute__((__nothrow__, __leaf__, __malloc__, __alloc_size__(1)));
+extern char *strcpy(char *__restrict __dest, const char *__restrict __src)
+ __attribute__((__nothrow__, __leaf__, __nonnull__(1, 2)));
+extern size_t strlen(const char *__s)
+ __attribute__((__nothrow__, __leaf__, __pure__, __nonnull__(1)));
+
+struct mydata {
+ struct mydata *link;
+ char *name;
+ char *type;
+};
+
+static struct mydata *all_data;
+static int line_no;
+
+__attribute__((__noreturn__)) void failed(const char *message);
+
+static char *string_dup(const char *string) {
+ char *buf;
+
+ if ((buf = malloc(strlen(string) + 1)) == ((void *)0))
+ failed("malloc() failed");
+
+ return strcpy(buf, string);
+}
+
+static void store_data(const char *name, const char *type) {
+ struct mydata *p, *q;
+
+ if ((p = (struct mydata *)malloc(sizeof(struct mydata))) == ((void *)0))
+ failed("malloc() failed");
+
+ p->link = ((void *)0);
+ p->name = string_dup(name);
+ p->type = string_dup(type);
+
+ if ((q = all_data) == ((void *)0))
+ all_data = p;
+ else {
+ while (q->link != ((void *)0))
+ q = q->link;
+ q->link = p;
+ }
+}
+
+static void parse_tbl(char *buffer) {
+ char *s = buffer;
+ char *t = s + strlen(s);
+
+ do {
+ t--;
+ if (((*__ctype_b_loc())[(int)(((int)*t))] & (unsigned short int)_ISspace))
+ *t = '\0';
+ else
+ break;
+ } while (t > s);
+ while (((*__ctype_b_loc())[(int)(((int)*s))] & (unsigned short int)_ISspace))
+ s++;
+ buffer = s;
+
+ line_no++;
+ if (*buffer != ';' && *buffer != '\0') {
+ if (*buffer == '#') {
+ store_data(buffer, ""); /* { dg-bogus "leak" "PR analyzer/107158" {
xfail *-*-* } } */
+ } else {
+
+ while (*s && !((*__ctype_b_loc())[(int)(((int)*s))] &
+ (unsigned short int)_ISspace))
+ s++;
+ while (
+ ((*__ctype_b_loc())[(int)(((int)*s))] & (unsigned short
int)_ISspace))
+ *s++ = '\0';
+ store_data(buffer, s); /* { dg-bogus "leak" "PR analyzer/107158" { xfail
*-*-* } } */
+ }
+ }
+}
--
2.26.3
