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erlang
0495-Don-t-use-too-many-reductions-in-lists-rev...
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File 0495-Don-t-use-too-many-reductions-in-lists-reverse-2.patch of Package erlang
From d61d422d4211b5b319ca6d5dee2cc63dbfeff538 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?John=20H=C3=B6gberg?= <john@erlang.org> Date: Fri, 9 Nov 2018 10:07:23 +0100 Subject: [PATCH 2/2] Don't use too many reductions in lists:reverse/2 --- erts/emulator/beam/erl_bif_lists.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/erts/emulator/beam/erl_bif_lists.c b/erts/emulator/beam/erl_bif_lists.c index 735ad3cae3..9b6b84d000 100644 --- a/erts/emulator/beam/erl_bif_lists.c +++ b/erts/emulator/beam/erl_bif_lists.c @@ -1082,7 +1082,7 @@ static BIF_RETTYPE lists_reverse_alloc(Process *c_p, list = list_in; tail = tail_in; - cells_left = max_cells = CELLS_PER_RED * (1 + ERTS_BIF_REDS_LEFT(c_p)); + cells_left = max_cells = CELLS_PER_RED * ERTS_BIF_REDS_LEFT(c_p); lookahead = list; while (cells_left != 0 && is_list(lookahead)) { @@ -1131,7 +1131,7 @@ static BIF_RETTYPE lists_reverse_onheap(Process *c_p, list = list_in; tail = tail_in; - cells_left = max_cells = CELLS_PER_RED * (1 + ERTS_BIF_REDS_LEFT(c_p)); + cells_left = max_cells = CELLS_PER_RED * ERTS_BIF_REDS_LEFT(c_p); ASSERT(HEAP_LIMIT(c_p) >= HEAP_TOP(c_p) + 2); alloc_start = HEAP_TOP(c_p); -- 2.16.4
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