src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp

rev 51052 : 8207252: C1 still does eden allocations when TLAB is enabled
Summary: Only do eden allocations when TLAB is disabled
Reviewed-by: kbarrett, jrose, tschatzl
Contributed-by: jcbeyler@google.com

*** 685,696 ****
          } else {
            assert(id == fast_new_instance_init_check_id, "bad StubID");
            __ set_info("fast new_instance init check", dont_gc_arguments);
          }
  
          if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) &&
!             UseTLAB && Universe::heap()->supports_inline_contig_alloc()) {
            Label slow_path;
            Register obj_size = r2;
            Register t1       = r19;
            Register t2       = r4;
            assert_different_registers(klass, obj, obj_size, t1, t2);
--- 685,699 ----
          } else {
            assert(id == fast_new_instance_init_check_id, "bad StubID");
            __ set_info("fast new_instance init check", dont_gc_arguments);
          }
  
+         // If TLAB is disabled, see if there is support for inlining contiguous
+         // allocations.
+         // Otherwise, just go to the slow path.
          if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) &&
!             !UseTLAB && Universe::heap()->supports_inline_contig_alloc()) {
            Label slow_path;
            Register obj_size = r2;
            Register t1       = r19;
            Register t2       = r4;
            assert_different_registers(klass, obj, obj_size, t1, t2);
*** 797,807 ****
            __ should_not_reach_here();
            __ bind(ok);
          }
  #endif // ASSERT
  
!         if (UseTLAB && Universe::heap()->supports_inline_contig_alloc()) {
            Register arr_size = r4;
            Register t1       = r2;
            Register t2       = r5;
            Label slow_path;
            assert_different_registers(length, klass, obj, arr_size, t1, t2);
--- 800,813 ----
            __ should_not_reach_here();
            __ bind(ok);
          }
  #endif // ASSERT
  
!         // If TLAB is disabled, see if there is support for inlining contiguous
!         // allocations.
!         // Otherwise, just go to the slow path.
!         if (!UseTLAB && Universe::heap()->supports_inline_contig_alloc()) {
            Register arr_size = r4;
            Register t1       = r2;
            Register t2       = r5;
            Label slow_path;
            assert_different_registers(length, klass, obj, arr_size, t1, t2);