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src/cpu/aarch64/vm/sharedRuntime_aarch64.cpp

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rev 8300 : 8079564: Use FP register as proper frame pointer in JIT compiled code on aarch64
Summary: Add support for PreserveFramePointer for debug/profile
Reviewed-by: duke

@@ -2993,25 +2993,10 @@
   // and we dont' expect an arg reg save area
   __ ldp(rfp, r3, Address(__ post(sp, 2 * wordSize)));
 
   // r0: exception handler
 
-  // Restore SP from BP if the exception PC is a MethodHandle call site.
-  __ ldrw(rscratch1, Address(rthread, JavaThread::is_method_handle_return_offset()));
-  // n.b. Intel uses special register rbp_mh_SP_save here but we will
-  // just hard wire rfp
-  __ cmpw(rscratch1, zr);
-  // the obvious way to conditionally copy rfp to sp if NE
-  // Label skip;
-  // __ br(Assembler::EQ, skip);
-  // __ mov(sp, rfp);
-  // __ bind(skip);
-  // same but branchless
-  __ mov(rscratch1, sp);
-  __ csel(rscratch1, rfp, rscratch1, Assembler::NE);
-  __ mov(sp, rscratch1);
-
   // We have a handler in r0 (could be deopt blob).
   __ mov(r8, r0);
 
   // Get the exception oop
   __ ldr(r0, Address(rthread, JavaThread::exception_oop_offset()));
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