File 2711-erl_bits-Remove-unnecessary-type-test.patch of Package erlang

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File 2711-erl_bits-Remove-unnecessary-type-test.patch of Package erlang (Revision 54412ea392063e09a486a38b36b3d904)

Currently displaying revision 54412ea392063e09a486a38b36b3d904 , Show latest

From a9cbf22724c648d10c0eae3eb2221671cd8f1360 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Wed, 6 Oct 2021 15:15:39 +0200
Subject: [PATCH 1/6] erl_bits: Remove unnecessary type test

OTP 25 will refuse to load ancient BEAM files (OTP R11B or earlier)
that would need this type test.
---
 erts/emulator/beam/erl_bits.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c
index 33c66e49b0..e4dcb729f8 100644
--- a/erts/emulator/beam/erl_bits.c
+++ b/erts/emulator/beam/erl_bits.c
@@ -1043,16 +1043,10 @@ erts_new_bs_put_binary_all(Process *c_p, Eterm arg, Uint unit)
    ERL_BITS_DEFINE_STATEP(c_p);
 
    /*
-    * This type test is not needed if the code was compiled with
-    * an R12B or later compiler, since there would have been a
-    * call to bit_size/1 or byte_size/1 that would have failed if
-    * 'arg' was not a binary. However, in R11B and earlier releases,
-    * size/1 was use for calculating the size of the binary, and
-    * therefore 'arg' could be a tuple.
+    * This instruction is always preceded by a size calculation that
+    * will guarantee that 'arg' is a binary.
     */
-   if (!is_binary(arg)) {
-       return 0;
-   }
+   ASSERT(is_binary(arg));
 
    ERTS_GET_BINARY_BYTES(arg, bptr, bitoffs, bitsize);
    num_bits = 8*binary_size(arg)+bitsize;
-- 
2.31.1

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File 2711-erl_bits-Remove-unnecessary-type-test.patch of Package erlang (Revision 54412ea392063e09a486a38b36b3d904)

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