[llvm] [X86] Adding lowerings for vector ISD::LRINT and ISD::LLRINT (PR #90065)

[Phoebe Wang via llvm-commits]

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@@ -8811,7 +8811,18 @@ let Predicates = [HasVLX] in {
   def : Pat<(X86mcvttp2ui (v2f64 (X86VBroadcastld64 addr:$src)),
                           v4i32x_info.ImmAllZerosV, VK2WM:$mask),
             (VCVTTPD2UDQZ128rmbkz VK2WM:$mask, addr:$src)>;
+
+  def : Pat<(v4i32 (lrint VR128X:$src)), (VCVTPS2DQZ128rr VR128X:$src)>;
+  def : Pat<(v4i32 (lrint (loadv4f32 addr:$src))), (VCVTPS2DQZ128rm addr:$src)>;
+  def : Pat<(v8i32 (lrint VR256X:$src)), (VCVTPS2DQZ256rr VR256X:$src)>;
+  def : Pat<(v8i32 (lrint (loadv8f32 addr:$src))), (VCVTPS2DQZ256rm addr:$src)>;
+  def : Pat<(v4i32 (lrint VR256X:$src)), (VCVTPD2DQZ256rr VR256X:$src)>;
+  def : Pat<(v4i32 (lrint (loadv4f64 addr:$src))), (VCVTPD2DQZ256rm addr:$src)>;
 }
+def : Pat<(v16i32 (lrint VR512:$src)), (VCVTPS2DQZrr VR512:$src)>;
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phoebewang wrote:

I think we don't bother to check it since VR512 is not available without `AVX512F + EXEV512`. We saved a lot of `HasEVEX512` check when introduing AVX10.

https://github.com/llvm/llvm-project/pull/90065