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* [gcc(refs/users/marxin/heads/PR100758-__builtin_cpu_supports-centaur)] docs: add caveat for __builtin_cpu_supports
@ 2023-02-09 10:36 Martin Liska
  0 siblings, 0 replies; only message in thread
From: Martin Liska @ 2023-02-09 10:36 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:8eaa92136781f5416329e3f6fa0bf2435a161a8a

commit 8eaa92136781f5416329e3f6fa0bf2435a161a8a
Author: Martin Liska <mliska@suse.cz>
Date:   Thu Feb 9 11:33:31 2023 +0100

    docs: add caveat for __builtin_cpu_supports
    
    Document that the function does not work correctly for old
    VIA processors.
    
            PR target/100758
    
    gcc/ChangeLog:
    
            * doc/extend.texi: Document that the function
            does not work correctly for old VIA processors.

Diff:
---
 gcc/doc/extend.texi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 5a026c4b48c..2aedf6dfe69 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -22071,6 +22071,9 @@ else
      count = generic_countbits (n); //generic implementation.
   @}
 @end smallexample
+
+Caveat: The built-in function does not work correctly on old VIA
+processors (Centaur family).
 @end deftypefn
 
 The following built-in functions are made available by @option{-mmmx}.

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