[GlobalIsel][X86] Update legalization of G_AND/G_OR/G_XOR

Replace the legacy G_AND/G_OR/G_XOR legalizer, this handles all scalar promotion and vector clamping (allows AVX1 to handle 256-bit logic ops).

GitOrigin-RevId: 9424a54201ee4e80d754095dbcd2cca47f89b6f1
2 files changed