xiaoxiang781216 commented on code in PR #6132:
URL: https://github.com/apache/incubator-nuttx/pull/6132#discussion_r858355943
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include/nuttx/compiler.h:
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@@ -379,9 +379,11 @@
# if defined(__clang__)
# define no_builtin(n) __attribute__((no_builtin(n)))
-# else
+# elif (__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || (__GNUC__ > 4)
# define no_builtin(n)
__attribute__((__optimize__("-fno-tree-loop-distribute-patterns")))
Review Comment:
Some question:
1. -fno-builtin-xxx is specific to gcc/clang. Yes, no_builtin is also
gcc/clang specific, but c macro is more simple.
2. do you want to apply -fno-builtin-xxx for individual file.
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