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changeset 23678:e86a0b0ba969

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8159236: [JVMCI] Window-saved SPARC registers should not be considered callee-save
author Gilles Duboscq <gilles.m.duboscq@oracle.com>
date Fri, 10 Jun 2016 14:04:40 +0200
parents eb166b568645
children b5557b757040
files jvmci/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/jvmci/jdk.vm.ci.hotspot.sparc/src/jdk/vm/ci/hotspot/sparc/SPARCHotSpotRegisterConfig.java	Thu Jun 09 18:58:09 2016 -0700
+++ b/jvmci/jdk.vm.ci.hotspot.sparc/src/jdk/vm/ci/hotspot/sparc/SPARCHotSpotRegisterConfig.java	Fri Jun 10 14:04:40 2016 +0200
@@ -134,10 +134,9 @@
     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
@@ -177,7 +176,7 @@
         this.addNativeRegisterArgumentSlots = config.linuxOs;
         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()]);
@@ -189,8 +188,9 @@
         return callerSaveRegisters;
     }
 
+    @Override
     public Register[] getCalleeSaveRegisters() {
-        return calleeSaveRegisters;
+        return null;
     }
 
     @Override