From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 gcc/testsuite/gcc.c-torture/execute/20090113-3.c | 138 +++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 gcc/testsuite/gcc.c-torture/execute/20090113-3.c

(limited to 'gcc/testsuite/gcc.c-torture/execute/20090113-3.c')

diff --git a/gcc/testsuite/gcc.c-torture/execute/20090113-3.c b/gcc/testsuite/gcc.c-torture/execute/20090113-3.c
new file mode 100644
index 000000000..f67bac241
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20090113-3.c
@@ -0,0 +1,138 @@
+struct obstack {};
+struct bitmap_head_def;
+typedef struct bitmap_head_def *bitmap;
+typedef const struct bitmap_head_def *const_bitmap;
+typedef unsigned long BITMAP_WORD;
+
+typedef struct bitmap_obstack
+{
+  struct bitmap_element_def *elements;
+  struct bitmap_head_def *heads;
+  struct obstack obstack;
+} bitmap_obstack;
+typedef struct bitmap_element_def
+{
+  struct bitmap_element_def *next;
+  struct bitmap_element_def *prev;
+  unsigned int indx;
+  BITMAP_WORD bits[(2)];
+} bitmap_element;
+
+struct bitmap_descriptor;
+
+typedef struct bitmap_head_def {
+    bitmap_element *first;
+    bitmap_element *current;
+    unsigned int indx;
+    bitmap_obstack *obstack;
+} bitmap_head;
+
+bitmap_element bitmap_zero_bits;
+
+typedef struct
+{
+  bitmap_element *elt1;
+  bitmap_element *elt2;
+  unsigned word_no;
+  BITMAP_WORD bits;
+} bitmap_iterator;
+
+static __attribute__((noinline)) void
+bmp_iter_set_init (bitmap_iterator *bi, const_bitmap map,
+		   unsigned start_bit, unsigned *bit_no)
+{
+  bi->elt1 = map->first;
+  bi->elt2 = ((void *)0);
+
+  while (1)
+    {
+      if (!bi->elt1)
+	{
+	  bi->elt1 = &bitmap_zero_bits;
+	  break;
+	}
+
+      if (bi->elt1->indx >= start_bit / (128u))
+	break;
+      bi->elt1 = bi->elt1->next;
+    }
+
+  if (bi->elt1->indx != start_bit / (128u))
+    start_bit = bi->elt1->indx * (128u);
+
+  bi->word_no = start_bit / 64u % (2);
+  bi->bits = bi->elt1->bits[bi->word_no];
+  bi->bits >>= start_bit % 64u;
+
+  start_bit += !bi->bits;
+
+  *bit_no = start_bit;
+}
+
+static __inline__ __attribute__((always_inline)) void
+bmp_iter_next (bitmap_iterator *bi, unsigned *bit_no)
+{
+  bi->bits >>= 1;
+  *bit_no += 1;
+}
+
+static __inline__ __attribute__((always_inline)) unsigned char
+bmp_iter_set (bitmap_iterator *bi, unsigned *bit_no)
+{
+  if (bi->bits)
+    {
+      while (!(bi->bits & 1))
+	{
+	  bi->bits >>= 1;
+	  *bit_no += 1;
+	}
+      return 1;
+    }
+
+  *bit_no = ((*bit_no + 64u - 1) / 64u * 64u);
+  bi->word_no++;
+
+  while (1)
+    {
+      while (bi->word_no != (2))
+	{
+	  bi->bits = bi->elt1->bits[bi->word_no];
+	  if (bi->bits)
+	    {
+	      while (!(bi->bits & 1))
+		{
+		  bi->bits >>= 1;
+		  *bit_no += 1;
+		}
+	      return 1;
+	    }
+	  *bit_no += 64u;
+	  bi->word_no++;
+	}
+
+      bi->elt1 = bi->elt1->next;
+      if (!bi->elt1)
+	return 0;
+      *bit_no = bi->elt1->indx * (128u);
+      bi->word_no = 0;
+    }
+}
+
+static void __attribute__((noinline))
+foobar (bitmap_head *live_throughout)
+{
+  bitmap_iterator rsi;
+  unsigned int regno;
+  for (bmp_iter_set_init (&(rsi), (live_throughout), (0), &(regno));
+       bmp_iter_set (&(rsi), &(regno));
+       bmp_iter_next (&(rsi), &(regno)))
+    ;
+}
+int main()
+{
+  bitmap_element elem = { (void *)0, (void *)0, 0, { 1, 1 } };
+  bitmap_head live_throughout = { &elem, &elem, 0, (void *)0 };
+  foobar (&live_throughout);
+  return 0;
+}
+
-- 
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