RFR (XS): 8139558 [JVMCI] SPARC hits: guarantee(heap_end < allocation_end) failed: heap end too close to end of address space (might lead to erroneous TLAB allocations)

[Christian Thalinger]

https://bugs.openjdk.java.net/browse/JDK-8139558

This assert can trigger trivially on SPARC so we have to disable it.

diff -r 0ca52fb7d980 src/share/vm/jvmci/jvmciRuntime.cpp
--- a/src/share/vm/jvmci/jvmciRuntime.cpp	Tue Sep 29 17:01:37 2015 +0000
+++ b/src/share/vm/jvmci/jvmciRuntime.cpp	Tue Oct 13 09:02:29 2015 -1000
@@ -778,9 +778,11 @@ JVM_ENTRY(void, JVM_RegisterJVMCINatives
   }
 
 #ifdef _LP64
+#ifndef TARGET_ARCH_sparc
   uintptr_t heap_end = (uintptr_t) Universe::heap()->reserved_region().end();
   uintptr_t allocation_end = heap_end + ((uintptr_t)16) * 1024 * 1024 * 1024;
   guarantee(heap_end < allocation_end, "heap end too close to end of address space (might lead to erroneous TLAB allocations)");
+#endif // TARGET_ARCH_sparc
 #else
   fatal("check TLAB allocation code for address space conflicts");
 #endif

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