[llvm] Support for i8/i16 for bitreverse using GFNI. (PR #88625)

[via llvm-commits]

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@@ -31335,14 +31344,14 @@ static SDValue LowerBITREVERSE(SDValue Op, const X86Subtarget &Subtarget,
 
   // Lower i32/i64 as vXi8 BITREVERSE + BSWAP
   if (!VT.isVector()) {
-    assert((VT == MVT::i32 || VT == MVT::i64) && "Only tested for i32/i64");
+    assert(VT == MVT::i32 || VT == MVT::i64 || VT == MVT::i16 || VT == MVT::i8);
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shamithoke wrote:

Done.

https://github.com/llvm/llvm-project/pull/88625