[PATCH] D86508: [clang] implement+test remaining C90 __builtin_ functions

[Nick Desaulniers via Phabricator via cfe-commits]

nickdesaulniers added inline comments.


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Comment at: clang/include/clang/Basic/Builtins.def:513
 BUILTIN(__builtin_printf, "icC*.", "Fp:0:")
+BUILTIN(__builtin_putchar, "ii", "F")
+BUILTIN(__builtin_puts, "icC*", "nF")
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nickdesaulniers wrote:
> rsmith wrote:
> > aaron.ballman wrote:
> > > Should we also add a builtin for `putc()` (I know that's often a macro, so I'm not certain if it applies)?
> > Yes, GCC has a `__builtin_putc`, so it'd make sense for us to support that too.
> Curious, `putc` isn't documented at https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html, which is what I was using.  It looks like `putc` was a part of ANSI C, so I'm not sure what else might be missing from my implementation.  Let me see if I can find a more complete list of C90 functions to verify.
(retrieves copy of `The Standard C Library` from P. J. Plauger)


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https://reviews.llvm.org/D86508