48b2d7e0e9
All other architectures have a LoadImmediate that works with any uword, but x64's truncated to 32-bit, causing surprising x64-only failures when LoadImmediate is used from architecture-independent parts of the compiler. TEST=ci Change-Id: Ia2b2cfd1df7396833e4508ed21b4995fc9af464b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/268040 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>