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bug#26597: 25.1; Compilation error on master with --enable-check-lisp-ob
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From: |
Stefan Monnier |
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Subject: |
bug#26597: 25.1; Compilation error on master with --enable-check-lisp-object-type |
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Date: |
Mon, 01 May 2017 08:20:26 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
> Replacing a primitive value with a struct containing such a value
> should never degrade performance; that would be a compiler bug.
FWIW, No, compilers do not guarantee that semantically-equivalent
programs will be compiled to code with equivalent performance, so it
wouldn't be a bug. It's only a "quality of implementation" issue.
Stefan