changeset 39425:576058e9f728

8159236: [JVMCI] Window-saved SPARC registers should not be considered callee-save Reviewed-by: iveresov
author gdub
date Fri, 17 Jun 2016 16:50:49 +0000
parents 1045973b8c6a
children ea04b4d9d862
files hotspot/src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspot.sparc/src/jdk/vm/ci/hotspot/sparc/SPARCHotSpotRegisterConfig.java
diffstat 1 files changed, 5 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/hotspot/src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspot.sparc/src/jdk/vm/ci/hotspot/sparc/SPARCHotSpotRegisterConfig.java	Fri Jun 17 11:31:24 2016 +0200
+++ b/hotspot/src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspot.sparc/src/jdk/vm/ci/hotspot/sparc/SPARCHotSpotRegisterConfig.java	Fri Jun 17 16:50:49 2016 +0000
@@ -133,10 +133,9 @@
     private final Register[] callerSaveRegisters;
 
     /**
-     * Registers saved by the callee. This lists all L and I registers which are saved in the
-     * register window.
+     * This lists all L and I registers which are saved in the register window.
      */
-    private final Register[] calleeSaveRegisters = {
+    private final Register[] windowSaveRegisters = {
                     l0, l1, l2, l3, l4, l5, l6, l7,
                     i0, i1, i2, i3, i4, i5, i6, i7};
     // @formatter:on
@@ -176,7 +175,7 @@
         this.addNativeRegisterArgumentSlots = false;
         HashSet<Register> callerSaveSet = new HashSet<>();
         Collections.addAll(callerSaveSet, target.arch.getAvailableValueRegisters());
-        for (Register cs : calleeSaveRegisters) {
+        for (Register cs : windowSaveRegisters) {
             callerSaveSet.remove(cs);
         }
         this.callerSaveRegisters = callerSaveSet.toArray(new Register[callerSaveSet.size()]);
@@ -188,8 +187,9 @@
         return callerSaveRegisters;
     }
 
+    @Override
     public Register[] getCalleeSaveRegisters() {
-        return calleeSaveRegisters;
+        return null;
     }
 
     @Override