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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.c-torture/compile/980329-1.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/980329-1.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/980329-1.c
new file mode 100644
index 000000000..3b3fe27cf
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/980329-1.c
@@ -0,0 +1,72 @@
+typedef __SIZE_TYPE__ size_t;
+struct re_pattern_buffer
+ {
+ unsigned char *buffer;
+ unsigned long int used;
+ };
+struct re_registers
+ {
+ int *start;
+ };
+
+static const char **regstart, **regend;
+static const char **old_regend;
+
+static int
+re_match_2_internal (struct re_pattern_buffer *bufp,
+ struct re_registers *regs)
+{
+ unsigned char *p = bufp->buffer;
+ unsigned char *pend = p + bufp->used;
+
+ for (;;)
+ {
+ int highest_active_reg = 1;
+ if (bufp)
+ {
+ int i;
+ for (i = 1;; i++)
+ regs->start[i] = 0;
+ }
+
+ switch ((unsigned int) *p++)
+ {
+ case 1:
+ {
+ unsigned char r = *p;
+ if (r)
+ highest_active_reg = r;
+ }
+ if (p + 2 == pend)
+ {
+ char is_a_jump_n = 0;
+ int mcnt = 0;
+ unsigned char *p1;
+
+ p1 = p + 2;
+ switch (*p1++)
+ {
+ case 2:
+ is_a_jump_n = 1;
+ case 1:
+ do { do { mcnt = *p1; } while (0); p1 += 2; } while (0);
+ if (is_a_jump_n)
+ p1 = 0;
+ }
+
+ if (mcnt && *p1 == 0)
+ {
+ unsigned r;
+ for (r = 0; r < (unsigned) *p + (unsigned) *(p + 1); r++)
+ {
+ if (regend[0] >= regstart[r])
+ regend[r] = old_regend[r];
+ }
+ do { while (0 < highest_active_reg + 1) { } } while (0);
+ }
+ }
+ }
+ }
+
+ return -1;
+}