Limit size of generated machine code to allow more efficient branching.

Most architectures have smaller and more efficient ways of branching to "near" locations than "far" locations.

In x86-64 a branch to a location within 2GB is smaller than to an arbitrary 64 bit location.
Likewise, in AArch64, a branch to within 1MB is a single instruction, but further branches will take more instructions.

We should limit the size of traces such that we can use more efficient branches in the generated machine code.

This will have little or no impact, as traces in release builds are unlikely to ever reach this limit, but we will to need enforce it for correctness, especially in debug builds.

ファイルもテストも指定されていません。まず、x86-64 と AArch64 のトレース生成およびアーキテクチャ固有の分岐出力を探し、次にトレースサイズの上限をどこで適用できるかを特定してください。完了の条件は、デバッグビルドを含め、生成されたトレースが意図された分岐範囲内に収まり、通常のリリース動作に影響を与えないことです。