rnk accepted this revision.
rnk added a comment.
This revision is now accepted and ready to land.
lgtm after merging the test back.
================
Comment at: test/Sema/implicit-intel-builtin-decl.c:4
@@ +3,3 @@
+void f() {
+ (void)_mm_getcsr(); // expected-warning{{implicitly declaring library
function '_mm_getcsr'}} \
+ // expected-note{{include the header <xmmintrin.h> or explicitly provide a
declaration for '_mm_getcsr'}}
----------------
agutowski wrote:
> rnk wrote:
> > Can you add a C++ test? I think you'll get "undeclared identifier
> > '_mm_getcsr'" instead of this helpful diagnostic.
> This diagnostic works also in C++, although that's not the case with
> _byteswap functions - if they are LIBBUILTINs, the C++ diagnostic doesn't
> work, and LANGBUILTINs doesn't have header dependencies. I can create another
> thing like TARGET_HEADER_BUILTIN, but I don't know if that's a good idea.
OK, it seems fine as is.
Given that there are no diagnostic differences, I would suggest copy-pasting
the RUN line at the top of this file and adding `-x c++` to avoid duplicating
the whole test.
https://reviews.llvm.org/D24330
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