The code from these precompiled constructors is thrown away,
and if we are adding constants to the LLVM constant pool, then
we may add constants that will not actually appear in the final
program which may cause issues for tree shaking.
If these constructors are actually used, then they will be
recompiled normally.
In addition, we also do not add unreferenced constants to the
constant pool. That is, these constant definitions will not have
an `llvm_index` value in their serialized form when the LLVM
constant pool is populated.
Bug: https://github.com/dart-lang/sdk/issues/38661
Change-Id: I2a3702fd3f174504a5f01458064306cd687d7949
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/119339
Commit-Queue: Teagan Strickland <sstrickl@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Teagan Strickland
0e24c2e6e5