Release 5.5.0.1 provides the following features and fixes:
Support RHEL 5.4
Support Power7 new VSX instruction set
Fixing PLT entries which cross 64K boundary or located outside TOC anchor scope
Adding support for relocations that modifies high part only (R_PPC_ADDR16_HI)
Recognizing rare instructions occurring in embedded code (mtdcr, mfdcr)
Add -iderat as standard instrumentation and -oderat as standard optimization under -O3
and higher.
Improved alignment optimization (-A --align-code). The revised optimization makes better use of the target Power model. For example, Use -mpower6 together with
