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src/hotspot/cpu/s390/macroAssembler_s390.hpp
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rev 52430 : 8213199: GC abstraction for Assembler::needs_explicit_null_check()
@@ -777,10 +777,11 @@
//
// %%%%%% Currently not done for z/Architecture
void null_check(Register reg, Register tmp = Z_R0, int64_t offset = -1);
static bool needs_explicit_null_check(intptr_t offset); // Implemented in shared file ?!
+ static bool uses_implicit_null_check(void* address);
// Klass oop manipulations if compressed.
void encode_klass_not_null(Register dst, Register src = noreg);
void decode_klass_not_null(Register dst, Register src);
void decode_klass_not_null(Register dst);
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