[clang] [CIR] Implement isMemcpyEquivalentSpecialMember for trivial copy/move ctors (PR #186700)

[Erich Keane via cfe-commits]

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@@ -43,7 +43,6 @@ struct HasDtor {
 // CHECK-NEXT: acc.yield
 // CHECK-NEXT: } copy {
 // CHECK-NEXT: ^bb0(%[[ARG_FROM:.*]]: !cir.ptr<!rec_NoCopyConstruct> {{.*}}, %[[ARG_TO:.*]]: !cir.ptr<!rec_NoCopyConstruct> {{.*}}):
-// CHECK-NEXT: cir.copy %[[ARG_FROM]] to %[[ARG_TO]] : !cir.ptr<!rec_NoCopyConstruct>
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erichkeane wrote:

Yeah... can we just put an 'int' into the types above on these 3 files?  It should maintain the 'copy' at that point, right? Is that something you could do here (and perhaps reduce the size of this?).

IF it ends up being too much work, let me know and I'll come through and add something that can land first.

https://github.com/llvm/llvm-project/pull/186700