The Fortran compiler is now available on the following Linux (x86 and x64) distributions: SuSe Linux Enterprise Server 9 with Service Pack 3 (or later), Red Hat Enterprise Linux 4, and other Linux distributions based on the 2.6 kernel (although these are not officially supported).
Use -m64 to create 64-bit executables and shared libraries.
New flags for -xarch replace obsolete flags.
New values for -xtarget and -xchip provide code generation for the UltraSPARC T2 and SPARC64vi processors.
New flag -fma=fused to enable generation of fused multiply-add instructions on processors that support them.
New flag -xhwcprof enables compiler support for dataspace profiling.
New flag -xinstrument to enable performance analysis by the Thread Analyzer.
-xregs=frameptr added to -fast on x86.
Support for interval arithmetic on Solaris x86 platform with the -xarch=sse2 and -xia options.
Explicit prefetch directives accepted on x86 platforms as well as SPARC platforms. (—xprefetch=explicit)
Default format for debugging information has changed from the "stabs" standard to the "dwarf" standard format. ( -xdebugformat=dwarf).