================
@@ -162,6 +162,62 @@ __gpu_shuffle_idx_u64(uint64_t __lane_mask, uint32_t
__idx, uint64_t __x,
((uint64_t)__gpu_shuffle_idx_u32(__lane_mask, __idx, __lo, __width));
}
+// Returns a bitmask marking all lanes that have the same value of __x.
+_DEFAULT_FN_ATTRS static __inline__ uint64_t
----------------
arsenm wrote:
the typedef lets it be portably without forcing it to u64 everywhere
https://github.com/llvm/llvm-project/pull/127504
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