20020402-3.c: New test.

2002-04-02  David S. Miller  <davem@redhat.com>

	* gcc.c-torture/execute/20020402-3.c: New test.

From-SVN: r51781

2 files changed, 85 insertions, 0 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b8c6d50..9d1be49 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2002-04-02  David S. Miller  <davem@redhat.com>
+
+	* gcc.c-torture/execute/20020402-3.c: New test.
+
 2002-04-03  Hans-Peter Nilsson  <hp@bitrange.com>
 
 	* g77.dg/bprob/bprob.exp: Skip for mmix-*-* and cris-*-*.
diff --git a/gcc/testsuite/gcc.c-torture/execute/20020402-3.c b/gcc/testsuite/gcc.c-torture/execute/20020402-3.c
new file mode 100644
index 0000000..eef2740
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20020402-3.c
@@ -0,0 +1,81 @@
+/* extracted from gdb sources */
+
+typedef unsigned long long CORE_ADDR;
+
+struct blockvector;
+
+struct symtab {
+  struct blockvector *blockvector;
+};
+
+struct sec {
+  void *unused;
+};
+
+struct symbol {
+  int len;
+  char *name;
+};
+
+struct block {
+	CORE_ADDR startaddr, endaddr;
+	struct symbol *function;
+	struct block *superblock;
+	unsigned char gcc_compile_flag;
+	int nsyms;
+	struct symbol syms[1];
+};
+
+struct blockvector {
+	int nblocks;
+	struct block *block[2];
+};
+
+struct blockvector *blockvector_for_pc_sect(register CORE_ADDR pc,
+					    struct symtab *symtab)
+{
+  register struct block *b;
+  register int bot, top, half;
+  struct blockvector *bl;
+
+  bl = symtab->blockvector;
+  b = bl->block[0];
+
+  bot = 0;
+  top = bl->nblocks;
+
+  while (top - bot > 1)
+    {
+      half = (top - bot + 1) >> 1;
+      b = bl->block[bot + half];
+      if (b->startaddr <= pc)
+	bot += half;
+      else
+	top = bot + half;
+    }
+
+  while (bot >= 0)
+    {
+      b = bl->block[bot];
+      if (b->endaddr > pc)
+	{
+	  return bl;
+	}
+      bot--;
+    }
+  return 0;
+}
+
+int main(void)
+{
+  struct block a = { 0, 0x10000, 0, 0, 1, 20 };
+  struct block b = { 0x10000, 0x20000, 0, 0, 1, 20 };
+  struct blockvector bv = { 2, { &a, &b } };
+  struct symtab s = { &bv };
+
+  struct blockvector *ret;
+
+  ret = blockvector_for_pc_sect(0x500, &s);
+
+  return 0;
+}