[llvm] [X86] Support lowering for APX promoted BMI instructions. (PR #77433)

[Simon Pilgrim via llvm-commits]

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@@ -1307,6 +1307,17 @@ let Predicates = [HasBMI], AddedComplexity = -6 in {
             (ANDN64rm GR64:$src1, addr:$src2)>;
 }
 
+let Predicates = [HasBMI, HasEGPR], AddedComplexity = -6 in {
+  def : Pat<(and (not GR32:$src1), GR32:$src2),
+            (ANDN32rr_EVEX GR32:$src1, GR32:$src2)>;
+  def : Pat<(and (not GR64:$src1), GR64:$src2),
+            (ANDN64rr_EVEX GR64:$src1, GR64:$src2)>;
+  def : Pat<(and (not GR32:$src1), (loadi32 addr:$src2)),
+            (ANDN32rm_EVEX GR32:$src1, addr:$src2)>;
+  def : Pat<(and (not GR64:$src1), (loadi64 addr:$src2)),
+            (ANDN64rm_EVEX GR64:$src1, addr:$src2)>;
+}
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RKSimon wrote:

We're collecting a lot of duplication here - how messy would it be to create defm macros that takes an optional "_EVEX" suffix?

https://github.com/llvm/llvm-project/pull/77433