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-rw-r--r--lib/compiler/test/compile_SUITE.erl46
-rw-r--r--lib/compiler/test/compile_SUITE_data/small_float.erl5
2 files changed, 49 insertions, 2 deletions
diff --git a/lib/compiler/test/compile_SUITE.erl b/lib/compiler/test/compile_SUITE.erl
index 1d9c7c44fa..f9bcb044ac 100644
--- a/lib/compiler/test/compile_SUITE.erl
+++ b/lib/compiler/test/compile_SUITE.erl
@@ -35,7 +35,8 @@
cover/1, env/1, core/1,
core_roundtrip/1, asm/1, optimized_guards/1,
sys_pre_attributes/1, dialyzer/1,
- warnings/1, pre_load_check/1, env_compiler_options/1
+ warnings/1, pre_load_check/1, env_compiler_options/1,
+ bc_options/1
]).
suite() -> [{ct_hooks,[ts_install_cth]}].
@@ -52,7 +53,7 @@ all() ->
strict_record, utf8_atoms, utf8_functions, extra_chunks,
cover, env, core, core_roundtrip, asm, optimized_guards,
sys_pre_attributes, dialyzer, warnings, pre_load_check,
- env_compiler_options, custom_debug_info].
+ env_compiler_options, custom_debug_info, bc_options].
groups() ->
[].
@@ -1364,6 +1365,47 @@ env_compiler_options(_Config) ->
end,
lists:foreach(F, Cases).
+%% Test options for compatibility with previous major versions of OTP.
+
+bc_options(Config) ->
+ DataDir = proplists:get_value(data_dir, Config),
+
+ 101 = highest_opcode(DataDir, small_float, [no_line_info]),
+
+ 103 = highest_opcode(DataDir, big,
+ [no_record_opt,no_line_info,no_stack_trimming]),
+
+ 125 = highest_opcode(DataDir, small_float, [no_line_info,no_float_opt]),
+
+ 132 = highest_opcode(DataDir, small,
+ [no_record_opt,no_float_opt,no_line_info]),
+
+ 136 = highest_opcode(DataDir, big, [no_record_opt,no_line_info]),
+
+ 153 = highest_opcode(DataDir, big, [no_record_opt]),
+ 153 = highest_opcode(DataDir, big, [r16]),
+ 153 = highest_opcode(DataDir, big, [r17]),
+ 153 = highest_opcode(DataDir, big, [r18]),
+ 153 = highest_opcode(DataDir, big, [r19]),
+ 153 = highest_opcode(DataDir, small_float, [r16]),
+ 153 = highest_opcode(DataDir, small_float, []),
+
+ 158 = highest_opcode(DataDir, small_maps, [r17]),
+ 158 = highest_opcode(DataDir, small_maps, [r18]),
+ 158 = highest_opcode(DataDir, small_maps, [r19]),
+ 158 = highest_opcode(DataDir, small_maps, []),
+
+ 159 = highest_opcode(DataDir, big, []),
+
+ ok.
+
+highest_opcode(DataDir, Mod, Opt) ->
+ Src = filename:join(DataDir, atom_to_list(Mod)++".erl"),
+ {ok,Mod,Beam} = compile:file(Src, [binary|Opt]),
+ {ok,{Mod,[{"Code",Code}]}} = beam_lib:chunks(Beam, ["Code"]),
+ <<16:32,0:32,HighestOpcode:32,_/binary>> = Code,
+ HighestOpcode.
+
%%%
%%% Utilities.
%%%
diff --git a/lib/compiler/test/compile_SUITE_data/small_float.erl b/lib/compiler/test/compile_SUITE_data/small_float.erl
new file mode 100644
index 0000000000..5cbb5aef83
--- /dev/null
+++ b/lib/compiler/test/compile_SUITE_data/small_float.erl
@@ -0,0 +1,5 @@
+-module(small_float).
+-export([f/1]).
+
+f(F) when is_float(F) ->
+ F / 2.