The GENERIC trees are converted into GIMPLE form and a subsequent control flow graph to support SSA-based optimizations.

generic树被转换成GIMPLE形式，进而转换成控制流图，以支持基于SSA的优化。

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In the front end of the compiler, the internal representation for GIMPLE was redefined, meaning that the compiler consumes less memory.

在编译器的前端，GIMPLE的内部表示被重新定义，这意味着编译器将消耗更少的内存。

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