asdf

asdf

1 files changed, 4 insertions, 1 deletions

diff --git a/regalloc.h b/regalloc.h
index a5cd7bf..08e6bc9 100644
--- a/regalloc.h
+++ b/regalloc.h
@@ -11,11 +11,14 @@ op_t      reg_alloc_alloc_mmx      (RegAlloc *ra);
 op_t      reg_alloc_alloc_sse      (RegAlloc *ra);
 op_t      reg_alloc_alloc_gp_force (RegAlloc *ra,
 				    reg_t     reg);
+op_t      reg_alloc_get_register_or_memory (RegAlloc *ra, op_t);
 
 /* It is allowed to read a variable immediately after
  * deallocating it. New variables may be allocated in
  * the same slot, but this is fine because instructions
- * work when both operands are the same register
+ * work when both operands are the same register. In
+ * other words, a decallocated register remains usable until
+ * someone has written into a newly allocated variable.
  */
 void      reg_alloc_dealloc        (RegAlloc *ra,
 				    op_t      var);