File 2164-Speed-up-misc_SUITE-integer_encoding-1.patch of Package erlang
From 244bad23877191a66f5c1d63cf1845101c73229b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Fri, 26 Jan 2018 10:50:14 +0100
Subject: [PATCH 2/2] Speed up misc_SUITE:integer_encoding/1
misc_SUITE:integer_encoding/1 was written to make sure
that big integers were encoding correctly in a reasonable
amount of time. Now that beam_asm will encode big integers
as literals, we can reduce the scope of integer_encode/1.
That will make it significantly faster, especially when
cover is running.
---
lib/compiler/test/misc_SUITE.erl | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/lib/compiler/test/misc_SUITE.erl b/lib/compiler/test/misc_SUITE.erl
index d93c5dda1e..4e39f4663e 100644
--- a/lib/compiler/test/misc_SUITE.erl
+++ b/lib/compiler/test/misc_SUITE.erl
@@ -359,9 +359,7 @@ integer_encoding_1(Config) ->
io:put_chars(Src, "t(Last) ->[\n"),
io:put_chars(Data, "[\n"),
- do_integer_encoding(-(id(1) bsl 10000), Src, Data),
- do_integer_encoding(id(1) bsl 10000, Src, Data),
- do_integer_encoding(1024, 0, Src, Data),
+ do_integer_encoding(137, 0, Src, Data),
_ = [begin
B = 1 bsl I,
do_integer_encoding(-B-1, Src, Data),
@@ -370,7 +368,7 @@ integer_encoding_1(Config) ->
do_integer_encoding(B-1, Src, Data),
do_integer_encoding(B, Src, Data),
do_integer_encoding(B+1, Src, Data)
- end || I <- lists:seq(1, 128)],
+ end || I <- lists:seq(1, 130)],
io:put_chars(Src, "Last].\n\n"),
ok = file:close(Src),
io:put_chars(Data, "0].\n\n"),
@@ -384,8 +382,6 @@ integer_encoding_1(Config) ->
%% Compare lists.
List = Mod:t(0),
{ok,[List]} = file:consult(DataFile),
- OneBsl10000 = id(1) bsl 10000,
- [-(1 bsl 10000),OneBsl10000|_] = List,
%% Cleanup.
file:delete(SrcFile),
@@ -404,7 +400,3 @@ do_integer_encoding(I, Src, Data) ->
Str = integer_to_list(I),
io:put_chars(Src, [Str,",\n"]),
io:put_chars(Data, [Str,",\n"]).
-
-
-id(I) -> I.
-
--
2.16.0
