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diff graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java @ 11537:7ce08e264abf

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Fixed registers that flow into a block need to be inputs of the LabelOp, otherwise the register allocator can insert spill moves before the definition of a fixed register.
author Christian Wimmer <christian.wimmer@oracle.com>
date Thu, 05 Sep 2013 16:36:13 -0700
parents df18a4214c7c
children b04b94b71649
line wrap: on
line diff
--- a/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java	Thu Sep 05 16:34:37 2013 -0700
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java	Thu Sep 05 16:36:13 2013 -0700
@@ -45,7 +45,7 @@
 import com.oracle.graal.hotspot.stubs.*;
 import com.oracle.graal.lir.*;
 import com.oracle.graal.lir.LIRInstruction.ValueProcedure;
-import com.oracle.graal.lir.StandardOp.ParametersOp;
+import com.oracle.graal.lir.StandardOp.LabelOp;
 import com.oracle.graal.lir.amd64.*;
 import com.oracle.graal.lir.asm.*;
 import com.oracle.graal.nodes.*;
@@ -214,7 +214,7 @@
         };
         for (Block block : lir.codeEmittingOrder()) {
             for (LIRInstruction op : lir.lir(block)) {
-                if (op instanceof ParametersOp) {
+                if (op instanceof LabelOp) {
                     // Don't consider this as a definition
                 } else {
                     op.forEachTemp(defProc);