re PR rtl-optimization/60650 ([ARM] LRA ICE in assign_by_spills)

2014-03-27  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/60650
	* lra-asign.c (find_hard_regno_for, spill_for): Add parameter
	first_p.  Use it.
	(find_spills_for): New.
	(assign_by_spills): Pass the new parameter to find_hard_regno_for.
	Spill all pseudos on the second iteration.

2014-03-27  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/60650
	* gcc.target/arm/pr60650.c: New.

From-SVN: r208876

gcc/ChangeLog

+2014-03-27  Vladimir Makarov  <vmakarov@redhat.com>
+
+	PR rtl-optimization/60650
+	* lra-asign.c (find_hard_regno_for, spill_for): Add parameter
+	first_p.  Use it.
+	(find_spills_for): New.
+	(assign_by_spills): Pass the new parameter to find_hard_regno_for.
+	Spill all pseudos on the second iteration.
+
 2014-03-27  Marek Polacek  <polacek@redhat.com>
 
 	PR c/50347

gcc/testsuite/ChangeLog

+2014-03-27  Vladimir Makarov  <vmakarov@redhat.com>
+
+	PR rtl-optimization/60650
+	* gcc.target/arm/pr60650.c: New.
+
 2014-03-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 
 	* gcc.target/s390/20140327-1.c: New testcase.

gcc/testsuite/gcc.target/arm/pr60650.c

+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-omit-frame-pointer -mabi=apcs-gnu -march=armv7-a" } */
+
+struct super_block
+{
+  int s_blocksize_bits;
+};
+struct btrfs_fs_info
+{
+  struct super_block *sb;
+};
+struct btrfs_root
+{
+  struct btrfs_fs_info *fs_info;
+} *b;
+
+
+int a, c, d;
+long long e;
+
+truncate_one_csum (struct btrfs_root *p1, long long p2, long long p3)
+{
+  int f, g, i = p1->fs_info->sb->s_blocksize_bits;
+  g = a;
+  long long h = p2 + p3;
+  f = foo1 (b, 0, c, 0);
+  e = f / g;
+  e <<= p1->fs_info->sb->s_blocksize_bits;
+  if (d < p2)
+    {
+      int j = e - h >> i;
+      foo2 (p1, 0, j);
+    }
+  else
+    {
+      asm ("1\t.long ");
+      __builtin_unreachable ();
+    }
+}