| Option | Language | Meaning |
|---|---|---|
| -fast | C C++ F95 | This option is a macro that you can effectively use as a starting point for tuning an executable for maximum run-time performance. |
| -fma | C C++ F95 | Enables automatic generation of floating-point, fused, multiply-add instructions. |
| -instlib | C++ | Inhibits the generation of template instances that are duplicated in a library, either static or shared, and the current object. |
| -O | C C++ F95 | Macro for -x03. Note: use the capital letter o for this option, not zero. |
| -s | C C++ F95 | Strips the symbol table from the executable file. |
| -xalias_level | C C++ | Allows the compiler to perform type-based alias-analysis. |
| -xarch | C C++ F95 | Specifies the target architecture instruction set (ISA). |
| -xbinopt | C C++ F95 | Instructs the compiler to prepare the binary for later optimizations, transformations and analysis (see binopt(1)). |
| -xbuiltin | C C++ | Enables or disables better optimization of standard library calls. |
| -xcache | C C++ F95 | Defines the cache properties for use by the optimizer. |
| -xchip | C C++ F95 | Specifies the target processor for use by the optimizer. |
| -xcrossfile | C++ F95 | Enables optimization and inlining across source files. |
| -xdepend | C C++ F95 | Analyzes loops for inter-iteration data dependencies and performs loop restructuring. |
| -xF | C C++ F95 | Enables the optimal reordering of functions and variables by the linker. |
| -xinline | C C++ F95 | Specifies which user-written routines can be inlined by the optimizer at -xO3 or higher. |
| -xinstrument | C C++ F95 | Compiles and instruments your program for analysis by the Thread Analyzer. |
| -xipo | C C++ F95 | Performs interprocedural optimizations. |
| -xipo_archive | C F95 | Enables the compiler to optimize object files that are passed to the linker with object files that were compiled with -xipo and that reside in the archive library (.a) before producing an executable. |
| -xjobs | C C++ F95 | Sets compilation for multiple processors. |
| -xlibmil | C C++ F95 | Inlines selected library routines for optimization. |
| -xlibmopt | C C++ F95 | Uses a library of optimized math routines. |
| -xlinkopt | C C++ F95 | Performs link-time optimizations on relocatable object files. |
| -xmaxopt | C C++ F95 | Limits the level of the opt pragma. |
| -xmemalign | C C++ F95 | Specifies the maximum assumed memory alignment and the behavior of misaligned data accesses. |
| -xnolibmil | C C++ F95 | Cancels -xlibmil on the command line. |
| -xnolibmopt | C C++ F95 | Does not use the math routine library by turning off any previously specified -xlibmopt options. |
| -xnorunpath | C | Prevents inclusion of a run-time search-path for shared libraries in the executable. |
| -xO | C C++ F95 | Specifies optimization level. |
| -xpagesize | C C++ F95 | Set the preferred page size for the stack and the heap. |
| -xpagesize_heap | C C++ F95 | Set the preferred page size for the heap. |
| -xpagesize_stack | C C++ F95 | Set the preferred page size for the stack. |
| -xpch | C C++ | Activates the precompiled-header feature. |
| -xpchstop | C C++ | Identifies the last include file to be considered in creating a precompiled-header file. |
| -xpentium | C | Generates code for the Pentium processor. |
| -xpg | C C++ F95 | Compiles for profiling with the gprof profiler. |
| -xprefetch | C C++ F95 | Enables and adjusts prefetch instructions on those architectures that support prefetch. |
| -xprefetch_auto_type | C C++ F95 | Determines whether or not the compiler generates indirect prefetches for the loops indicated by the -xprefetch_level option in the same fashion that the prefetches for direct memory accesses are generated. |
| -xprefetch_level | C C++ F95 | Controls the aggressiveness of automatic insertion of prefetch instructions as determined with -xprefetch=auto. |
| -xprofile | C C++ F95 | Collects or optimizes with runtime profiling data. |
| -xprofile_ircache | C++ F95 | Improves compilation time during the use phase of -xprofile by reusing compilation data saved from the collect phase of -xprofile. |
| -xprofile_pathmap | F95 | For use in conjunction with the -xprofile=use option. |
| -xprofile_pathmap | C | For use in conjunction with the -xprofile=use option. |
| -xregs | C C++ F95 | Makes available additional scratch registers for use during compilation. |
| -xrestrict | C C++ | Treats pointer-valued function parameters as restricted pointers. |
| -xsafe | C C++ F95 | Allows the compiler to assume that no memory protection violations occur. |
| -xspace | C C++ F95 | Does not allow optimizations that increase code size. |
| -xtarget | C C++ F95 | Specifies the target system for instruction set and optimization. |
| -xthreadvar | C C++ | Works in conjunction with the __thread declaration specifier to take advantage of the compiler's thread-local storage facility. |
| -xunroll | C C++ F95 | Enables unrolling of loops where possible. |
| -xvector | C C++ F95 | Enables automatic generation of calls to the vector library and/or the generation of the SIMD (Single Instruction Multiple Data) instructions. |
| -xvis | C C++ | Declares the use of the assembly-language templates defined in the VIS[tm] instruction set Software Developers Kit (VSDK). |