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diff jvmci/jdk.internal.jvmci.sparc/src/jdk/internal/jvmci/sparc/SPARC.java @ 22268:b068e7d4db13

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[SPARC] Assert certain scratch registers for stack banging/save instruction
author Stefan Anzinger <stefan.anzinger@oracle.com>
date Tue, 14 Jul 2015 11:38:56 +0200
parents 01343dd934f7
children cefff7d980bc
line wrap: on
line diff
--- a/jvmci/jdk.internal.jvmci.sparc/src/jdk/internal/jvmci/sparc/SPARC.java	Tue Jul 21 11:30:40 2015 +0200
+++ b/jvmci/jdk.internal.jvmci.sparc/src/jdk/internal/jvmci/sparc/SPARC.java	Tue Jul 14 11:38:56 2015 +0200
@@ -318,6 +318,10 @@
         return true;
     }
 
+    public static boolean isGlobalRegister(Register r) {
+        return isCPURegister(r) && g0.number <= r.number && r.number <= g7.number;
+    }
+
     public static boolean isSingleFloatRegister(Register r) {
         return r.name.startsWith("f");
     }