[clang] [llvm] [RISCV][P-ext] Support Packed Element Insert (PR #222268)

[via cfe-commits]

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@@ -312,6 +312,17 @@ typedef uint32_t uint32x2_t __attribute__((__vector_size__(8)));
     return __builtin_bit_cast(rty, __x);                                       \
   }
 
+#define __packed_insert(name, ty, elt_ty, max_idx)                             \
+  static __inline__ ty __DEFAULT_FN_ATTRS __riscv_##name(ty __v, elt_ty __e,   \
+                                                         unsigned __idx)       \
+      __attribute__((__enable_if__(                                            \
+          __idx <= (max_idx),                                                  \
+          "index must be a constant integer from 0 to " #max_idx))) {          \
+    ty __r = __v;                                                              \
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TelGome wrote:

Remove '__r'

https://github.com/llvm/llvm-project/pull/222268