Merge branch 'bjorn/compiler/coverage'

* bjorn/compiler/coverage:
  v3_codegen: Remove check of operand for bs_context_to_binary
  beam_jump: Eliminate a repeated clause
  beam_asm: No longer allow iolists as contents in chunk/2
  beam_utils_SUITE: Cover more lines in beam_utils
  guard_SUITE: Add a test case to cover beam_dead:turn_op/1
  Recognize 'nil' as a literal in beam_utils:bif_to_test/3
  Cover more code in beam_bsm:btb_opt_1/3
  Add test to cover a line in v3_kernel:opt_single_valued/3

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/compiler/test/match_SUITE.erl b/lib/compiler/test/match_SUITE.erl
index c31695be24..35d2e8e91a 100644
--- a/lib/compiler/test/match_SUITE.erl
+++ b/lib/compiler/test/match_SUITE.erl
@@ -617,6 +617,10 @@ grab_bag(_Config) ->
 	 {bad,16#555555555555555555555555555555555555555555555555555}],
     ok = grab_bag_remove_failure(L, unit, 0),
 
+    {42,<<43,44>>} = grab_bag_single_valued(<<42,43,44>>),
+    empty_list = grab_bag_single_valued([]),
+    empty_tuple = grab_bag_single_valued({}),
+
     ok.
 
 grab_bag_remove_failure([], _Unit, _MaxFailure) ->
@@ -634,6 +638,12 @@ grab_bag_remove_failure([{stretch,_,Mi}=Stretch | Specs], Unit, _MaxFailure) ->
 	    ok
     end.
 
+%% Cover a line v3_kernel that places binary matching first.
+grab_bag_single_valued(<<H,T/bytes>>) -> {H,T};
+grab_bag_single_valued([]) -> empty_list;
+grab_bag_single_valued({}) -> empty_tuple.
+
+
 %% Regression in 19.0, reported by Alexei Sholik
 literal_binary(_Config) ->
     3 = literal_binary_match(bar, <<"y">>),