*** empty log message ***

From-SVN: r737

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index ee49f29..1af952f 100644 (file)
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -1061,6 +1061,17 @@
   int start = INTVAL (operands[3]) & 31;
   int size = INTVAL (operands[2]) & 31;
 
+  if ((start < 16 && start + size <= 16) || start >= 16)
+    {
+      operands[3] = gen_rtx (CONST_INT, VOIDmode,
+                            ((1 << (16 - (start & 15)))
+                             - (1 << (16 - (start & 15) - size))));
+      if (start < 16)
+       return \"andiu. %4,%1,%3\";
+      else
+       return \"andil. %4,%1,%3\";
+    }
+  
   if (start + size >= 32)
     operands[3] = const0_rtx;
   else