[libc-commits] [libc] [libc][NFC] Factor GPU exiting into a common function (PR #66093)

[Matt Arsenault via libc-commits]

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@@ -176,6 +176,12 @@ LIBC_INLINE uint64_t fixed_frequency_clock() {
     return 0;
 }
 
+/// Terminates execution of the associated wavefront.
+LIBC_INLINE void exit() {
+  __builtin_amdgcn_endpgm();
+  __builtin_unreachable();
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arsenm wrote:

This should be redundant, the endpgm should be noreturn 

https://github.com/llvm/llvm-project/pull/66093