# HG changeset patch
# User roland
# Date 1435955402 -3600
# Node ID f9edc77edd3c3e4821ee7229a49907c458558a73
# Parent  73fd325ff54e6a83623f55e31d7ba27016197956
8071731: Better scaling for C1
Reviewed-by: kvn, iveresov

diff -r 73fd325ff54e -r f9edc77edd3c src/share/vm/c1/c1_LIRGenerator.cpp
--- a/src/share/vm/c1/c1_LIRGenerator.cpp	Sat Jul 18 00:45:31 2015 +0100
+++ b/src/share/vm/c1/c1_LIRGenerator.cpp	Fri Jul 03 21:30:02 2015 +0100
@@ -2154,7 +2154,15 @@
 #ifdef _LP64
     }
 #endif
-    __ shift_left(index_op, log2_scale, index_op);
+    LIR_Opr tmp = new_pointer_register();
+    if (TwoOperandLIRForm) {
+      __ move(index_op, tmp);
+      index_op = tmp;
+    }
+    __ shift_left(index_op, log2_scale, tmp);
+    if (!TwoOperandLIRForm) {
+      index_op = tmp;
+    }
   }
 #ifdef _LP64
   else if(!index_op->is_illegal() && index_op->type() == T_INT) {