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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://im-in.space/users/goldstein/statuses/113443911309098008">Max (goldstein@im-in.space)'s status on Sunday, 10-Nov-2024 06:54:27 JST</a><a href="https://im-in.space/@goldstein" title="goldstein@im-in.space"><img src="https://gnusocial.jp/avatar/156982-48-20230803120258.webp" width="48" height="48" alt="Max" style="position: absolute; left: 0; top: 0;">Max</a></section><article><p>MSVC is the only compiler to apply optimizations based on restrict on local variables, which it immediately remediates by generating a lot more stack shuffling than GCC or Clang: <a href="https://godbolt.org/z/954dGcabx" rel="nofollow noreferrer">https://godbolt.org/z/954dGcabx</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/3970911#notice-7757436">In conversation</a><time datetime="2024-11-10T06:54:27+09:00" title="Sunday, 10-Nov-2024 06:54:27 JST">about 17 days ago</time> <span>from <span><a href="https://im-in.space/@goldstein/113443911309098008" rel="external" title="Sent from im-in.space via ActivityPub">im-in.space</a></span></span><a href="https://im-in.space/@goldstein/113443911309098008">permalink</a><h4>Attachments</h4><ol><li><article><header><div>Domain not in remote thumbnail source whitelist: raw.githubusercontent.com</div><h5><a href="https://godbolt.org/z/954dGcabx">Compiler Explorer - C</a></h5><div> from <span>Matt Godbolt</span></div></header><div>void black_box(int);
int* gimme_a_pointer(void);int check(int* a) {
    int* restrict b = gimme_a_pointer();
    int val = *b;
    black_box(val);
    *a = 42;
    return *b;
}</div><footer></footer></article></li></ol></footer></blockquote>

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Max (goldstein@im-in.space)'s status on Sunday, 10-Nov-2024 06:54:27 JST Max
MSVC is the only compiler to apply optimizations based on restrict on local variables, which it immediately remediates by generating a lot more stack shuffling than GCC or Clang: https://godbolt.org/z/954dGcabx
In conversationabout 17 days ago from im-in.spacepermalink
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1. Domain not in remote thumbnail source whitelist: raw.githubusercontent.com
  Compiler Explorer - C
  from Matt Godbolt
  void black_box(int); int* gimme_a_pointer(void); int check(int* a) { int* restrict b = gimme_a_pointer(); int val = *b; black_box(val); *a = 42; return *b; }

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