该版本修正了 4.3.2 的一些bug，没有增加新的特性。
- Starting with GCC 4.3.1, decimal floating point variables are aligned to their natural boundaries when they are passed on the stack for i386.
- Starting with GCC 4.3.1, the
-mcldoption has been added to automatically generate a
cldinstruction in the prologue of functions that use string instructions. This option is used for backward compatibility on some operating systems and can be enabled by default for 32-bit x86 targets by configuring GCC with the