[clang] [Headers][X86] Add more descriptions to ia32intrin.h and immintrin.h (PR #77686)

Craig Topper via cfe-commits cfe-commits at lists.llvm.org
Tue Jan 16 21:55:32 PST 2024


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@@ -173,25 +183,59 @@ __popcntq(unsigned long long __A)
 #endif /* __x86_64__ */
 
 #ifdef __x86_64__
+/// Returns the program status and control \c RFLAGS register with the \c VM
+///    and \c RF flags cleared.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the \c PUSHFQ + \c POP instruction sequence.
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topperc wrote:

I wrote that comment before I checked and meant to remove it before I approved. Sorry.

https://github.com/llvm/llvm-project/pull/77686


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