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src/hotspot/cpu/ppc/templateTable_ppc_64.cpp

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rev 49643 : [mq]: heap8
rev 49649 : [mq]: heap14


3805 
3806     __ cmpdi(CCR1, Rscratch, InstanceKlass::fully_initialized);
3807     // Make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class.
3808     __ andi_(R0, Rinstance_size, Klass::_lh_instance_slow_path_bit); // slow path bit equals 0?
3809 
3810     __ crnand(CCR0, Assembler::equal, CCR1, Assembler::equal); // slow path bit set or not fully initialized?
3811     __ beq(CCR0, Lslow_case);
3812 
3813     // --------------------------------------------------------------------------
3814     // Fast case:
3815     // Allocate the instance.
3816     // 1) Try to allocate in the TLAB.
3817     // 2) If the above fails (or is not applicable), go to a slow case (creates a new TLAB, etc.).
3818 
3819     Register RoldTopValue = RallocatedObject; // Object will be allocated here if it fits.
3820     Register RnewTopValue = R6_ARG4;
3821     Register RendValue    = R7_ARG5;
3822 
3823     // Check if we can allocate in the TLAB.
3824     __ ld(RoldTopValue, in_bytes(JavaThread::tlab_top_offset()), R16_thread);
3825     __ ld(RendValue,    in_bytes(JavaThread::tlab_current_end_offset()), R16_thread);
3826 
3827     __ add(RnewTopValue, Rinstance_size, RoldTopValue);
3828 
3829     // If there is enough space, we do not CAS and do not clear.
3830     __ cmpld(CCR0, RnewTopValue, RendValue);
3831     __ bgt(CCR0, Lslow_case);
3832 
3833     __ std(RnewTopValue, in_bytes(JavaThread::tlab_top_offset()), R16_thread);
3834 
3835     if (!ZeroTLAB) {
3836       // --------------------------------------------------------------------------
3837       // Init1: Zero out newly allocated memory.
3838       // Initialize remaining object fields.
3839       Register Rbase = Rtags;
3840       __ addi(Rinstance_size, Rinstance_size, 7 - (int)sizeof(oopDesc));
3841       __ addi(Rbase, RallocatedObject, sizeof(oopDesc));
3842       __ srdi(Rinstance_size, Rinstance_size, 3);
3843 
3844       // Clear out object skipping header. Takes also care of the zero length case.
3845       __ clear_memory_doubleword(Rbase, Rinstance_size);




3805 
3806     __ cmpdi(CCR1, Rscratch, InstanceKlass::fully_initialized);
3807     // Make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class.
3808     __ andi_(R0, Rinstance_size, Klass::_lh_instance_slow_path_bit); // slow path bit equals 0?
3809 
3810     __ crnand(CCR0, Assembler::equal, CCR1, Assembler::equal); // slow path bit set or not fully initialized?
3811     __ beq(CCR0, Lslow_case);
3812 
3813     // --------------------------------------------------------------------------
3814     // Fast case:
3815     // Allocate the instance.
3816     // 1) Try to allocate in the TLAB.
3817     // 2) If the above fails (or is not applicable), go to a slow case (creates a new TLAB, etc.).
3818 
3819     Register RoldTopValue = RallocatedObject; // Object will be allocated here if it fits.
3820     Register RnewTopValue = R6_ARG4;
3821     Register RendValue    = R7_ARG5;
3822 
3823     // Check if we can allocate in the TLAB.
3824     __ ld(RoldTopValue, in_bytes(JavaThread::tlab_top_offset()), R16_thread);
3825     __ ld(RendValue,    in_bytes(JavaThread::tlab_fast_path_end_offset()), R16_thread);
3826 
3827     __ add(RnewTopValue, Rinstance_size, RoldTopValue);
3828 
3829     // If there is enough space, we do not CAS and do not clear.
3830     __ cmpld(CCR0, RnewTopValue, RendValue);
3831     __ bgt(CCR0, Lslow_case);
3832 
3833     __ std(RnewTopValue, in_bytes(JavaThread::tlab_top_offset()), R16_thread);
3834 
3835     if (!ZeroTLAB) {
3836       // --------------------------------------------------------------------------
3837       // Init1: Zero out newly allocated memory.
3838       // Initialize remaining object fields.
3839       Register Rbase = Rtags;
3840       __ addi(Rinstance_size, Rinstance_size, 7 - (int)sizeof(oopDesc));
3841       __ addi(Rbase, RallocatedObject, sizeof(oopDesc));
3842       __ srdi(Rinstance_size, Rinstance_size, 3);
3843 
3844       // Clear out object skipping header. Takes also care of the zero length case.
3845       __ clear_memory_doubleword(Rbase, Rinstance_size);


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