diff --git a/ivtest/gold/pr2590274-fsv.gold b/ivtest/gold/pr2590274-fsv.gold
new file mode 100644
index 000000000..86ca64b56
--- /dev/null
+++ b/ivtest/gold/pr2590274-fsv.gold
@@ -0,0 +1,5 @@
+warning: Found both default and explicit timescale based delays. Use
+       : -Wtimescale to find the design element(s) with no explicit
+       : timescale.
+The time in w_time is: 1.000000e-09
+The time in wo_time is: 1.000000e+00
diff --git a/ivtest/regress-fsv.list b/ivtest/regress-fsv.list
index 80932efd4..9424f42eb 100644
--- a/ivtest/regress-fsv.list
+++ b/ivtest/regress-fsv.list
@@ -68,75 +68,74 @@
 #
 
 # Some constructs/usage are not errors in SystemVerilog
-br1015a			normal			ivltests
-br1027a			normal			ivltests gold=br1027a-fsv.gold
-br1027c			normal			ivltests gold=br1027c-fsv.gold
-br1027e			normal			ivltests gold=br1027e-fsv.gold
-br_gh25a		normal			ivltests
-br_gh25b		normal			ivltests
-br_gh567		normal			ivltests
-check_constant_3	normal			ivltests
-function4		normal			ivltests
-module_inout_port_type	normal			ivltests
-module_input_port_list_def normal,-g2005-sv	ivltests
-module_input_port_type	normal			ivltests
-parameter_in_generate1	normal			ivltests
-parameter_no_default	normal			ivltests
-parameter_omit1		normal			ivltests
-parameter_omit2		normal			ivltests
-parameter_omit3		normal			ivltests
-pr1963962		normal			ivltests gold=pr1963962-fsv.gold
-pr3015421		CE			ivltests gold=pr3015421-fsv.gold
-resetall		normal,-Wtimescale	ivltests gold=resetall-fsv.gold
-scope2b			normal			ivltests
-sys_func_task_error	RE			ivltests gold=sys_func_task_error-fsv.gold
-unnamed_block_var_decl	normal			ivltests
-unnamed_fork_var_decl	normal			ivltests
+br1027a				normal			ivltests gold=br1027a-fsv.gold
+br1027c				normal			ivltests gold=br1027c-fsv.gold
+br1027e				normal			ivltests gold=br1027e-fsv.gold
+br_gh25a			normal			ivltests
+br_gh25b			normal			ivltests
+br_gh567			normal			ivltests
+check_constant_3		normal			ivltests
+function4			normal			ivltests
+module_inout_port_type		normal			ivltests
+module_input_port_list_def	normal			ivltests
+module_input_port_type		normal			ivltests
+parameter_in_generate1		normal			ivltests
+parameter_no_default		normal			ivltests
+parameter_omit1			normal			ivltests
+parameter_omit2			normal			ivltests
+parameter_omit3			normal			ivltests
+pr1963962			normal			ivltests gold=pr1963962-fsv.gold
+pr3015421			CE			ivltests gold=pr3015421-fsv.gold
+resetall			normal,-Wtimescale	ivltests gold=resetall-fsv.gold
+scope2b				normal			ivltests
+sys_func_task_error		RE			ivltests gold=sys_func_task_error-fsv.gold
+unnamed_block_var_decl		normal			ivltests
+unnamed_fork_var_decl		normal			ivltests
 
 # We do not run synthesis when forcing SystemVerilog so these pass
-br995			normal			ivltests
-br_gh306a		normal			ivltests
-br_gh306b		normal			ivltests
-case5-syn-fail		normal			ivltests
-casesynth7		normal			ivltests
-casesynth8		normal			ivltests
-dffsynth		normal			ivltests
-dffsynth8		normal			ivltests
-memsynth1		normal			ivltests
-memsynth2		normal			ivltests
-memsynth3		normal			ivltests
-memsynth5		normal			ivltests
-memsynth6		normal			ivltests
-memsynth7		normal			ivltests
-memsynth9		normal			ivltests
-mix_reset		normal			ivltests
+br995				normal			ivltests
+br_gh306a			normal			ivltests
+br_gh306b			normal			ivltests
+case5-syn-fail			normal			ivltests
+casesynth7			normal			ivltests
+casesynth8			normal			ivltests
+dffsynth			normal			ivltests
+dffsynth8			normal			ivltests
+memsynth1			normal			ivltests
+memsynth2			normal			ivltests
+memsynth3			normal			ivltests
+memsynth5			normal			ivltests
+memsynth6			normal			ivltests
+memsynth7			normal			ivltests
+memsynth9			normal			ivltests
+mix_reset			normal			ivltests
 
-# These use $abstime() and will actually run correctly with -g2012 (different
-# results), but since this file is loaded in sv-tests mark them as NI instead
-# of creating the correct gold file
-pr2590274a		NI			ivltests
-pr2590274b		NI			ivltests
-pr2590274c		NI			ivltests
+# These use $abstime() and produce different results when run
+# using SytemVerilog
+pr2590274a			normal			ivltests gold=pr2590274-fsv.gold
+pr2590274b			normal			ivltests gold=pr2590274-fsv.gold
+pr2590274c			normal,-gspecify	ivltests gold=pr2590274-fsv.gold
 
 # These are not supported in Icarus, but are valid SystemVerilog
-array_lval_select3a	normal			ivltests
-br605a			normal			ivltests
-br605b			normal			ivltests
-br971			normal			ivltests
-br1005			normal			ivltests
-br1015b			normal			ivltests
-br_ml20150315b		normal			ivltests
-sv_darray_nest1		normal			ivltests
-sv_darray_nest2		normal			ivltests
-sv_darray_nest3		normal			ivltests
-sv_darray_nest4		normal			ivltests
-sv_darray_oob_vec2	normal			ivltests
-sv_deferred_assert1	normal			ivltests
-sv_deferred_assert2	normal			ivltests
-sv_deferred_assume1	normal			ivltests
-sv_deferred_assume2	normal			ivltests
-sv_queue_nest1		normal			ivltests
-sv_queue_nest2		normal			ivltests
-sv_queue_nest3		normal			ivltests
-sv_queue_nest4		normal			ivltests
-sv_queue_oob_vec2	normal			ivltests
+array_lval_select3a		NI			ivltests
+br605a				NI			ivltests
+br605b				NI			ivltests
+br971				NI			ivltests
+br1005				NI			ivltests
+br1015a				NI			ivltests
+br1015b				NI			ivltests
+br_ml20150315b			NI			ivltests
+sv_darray_nest1			NI			ivltests
+sv_darray_nest2			NI			ivltests
+sv_darray_nest3			NI			ivltests
+sv_darray_nest4			NI			ivltests
+sv_darray_oob_vec2		NI			ivltests
+sv_deferred_assert1		NI			ivltests
+sv_deferred_assert2		NI			ivltests
+sv_deferred_assume1		NI			ivltests
+sv_deferred_assume2		NI			ivltests
+sv_queue_nest1			NI			ivltests
+sv_queue_nest2			NI			ivltests
+sv_queue_nest3			NI			ivltests
+sv_queue_nest4			NI			ivltests
+sv_queue_oob_vec2		NI			ivltests