# HG changeset patch
# User Josef Eisl <josef.eisl@jku.at>
# Date 1402490999 -7200
# Node ID f0ac7457252a2c1dea1dcdccb61d4df9939b38b9
# Parent  0abb7a42ef75323393d73249d707dd996cbd4bf9
LSRA spill optimization: use the correct from location for the spill move.

diff -r 0abb7a42ef75 -r f0ac7457252a graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/LinearScan.java
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/LinearScan.java	Tue Jun 10 16:43:26 2014 +0200
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/LinearScan.java	Wed Jun 11 14:49:59 2014 +0200
@@ -606,7 +606,9 @@
                                     insertionBuffer.init(instructions);
                                 }
 
-                                AllocatableValue fromLocation = interval.location();
+                                // if we spill in a dominator we need to find the right location
+                                AllocatableValue fromLocation = interval.spillState() == SpillState.SpillInDominator ? interval.getSplitChildAtOpId(opId, OperandMode.DEF, this).location()
+                                                : interval.location();
                                 AllocatableValue toLocation = canonicalSpillOpr(interval);
 
                                 assert isRegister(fromLocation) : "from operand must be a register but is: " + fromLocation + " toLocation=" + toLocation + " spillState=" + interval.spillState();