uyota 匠の一手

gnu Option	Sun Studio Option	Description
-help	-help	Prints a summary of available options
Debugging/Profiling Options
-g	-g	Produces additional symbol table and optimization information for the debugger and analyzer
	-g0	C++: Produces additional symbol table information for the debugger and analyzer, but does not disable inlining. See here for more.
-p -profile	-g	Prepares the object code to collect data for profiling
-fbounds-check	-C	Fortran: Enable array bounds checking
	-xcheck=init_local	Initialize local variables to garbage values
	-xcheck=stkovf	Check for stack overflow
Code Generation Options
-m64	-m64	Generate code for the 64 bit memory model
-m32	-m32	Generate code for the 32 bit memory model
-fPIC	-KPIC	Generates position-independent code
-fdefault-double-8	-xtypemap=double:64	Make the size of DOUBLEPRECISION variables be 64 bits
-fdefault-real-8	-xtypemap=real:64	Fortran: Make the size of REAL variables be 64 bits
-fdefault-integer-8	-xtypemap=integer:64	Fortran: Make the size of INTEGER variables be 64 bits
-fno-underscoring	-ext_names=plain	Fortran: Do not append underscores to external names
-fsecond-underscore	available soon	Fortran: Append 2 underscores to external names containing underscores
Source Options
-fopenmp	-xopenmp	Supports the OpenMP interface for explicit parallelization
-ffree-form	-free	Fortran: Free-form source
-ffixed-form	-fixed	Fortran: Fixed-form source
-ffixed-line-length-132	-e	Fortran: Extend max line length for fixed form source
Optimization Options
-O	-fast	Invokes a variety of options as a first guess at best run-time performance
	-xO5	Selects a high optimization level
	-xtarget=native	Optimize code for the host system
	-xalias_level	CC, cc: Enables the compiler to perform type-based alias analysis and optimizations
	-xbuiltin	Improve the optimization of code that calls standard library functions
	-xipo=2	Performs whole-program optimizations
-ftree-vectorize	-xvector=simd	Enables automatic generation of the packed SIMD instructions
-march	-xarch	Generates code for a particular instruction set architecture
-mtune	-xchip	Tune for a particular type of hardware
-ffast-math	-fsimple=2	Selects aggressive floating-point arithmetic optimizations
-ftree-parallelize-loops	-xautopar	Enables automatic parallelization for multiple processors
-funroll-loops	-xunroll	Unroll loops (on at -xO3 in Sun Studio compilers)
-finline-functions	-xinline	Inline functions (on at -xO4 in Sun Studio compilers)
-fno-inline-functions	-xinline=	Disables automatic function inlining
-Os	-xspace	Avoids optimizations that increase code size
Profile Feedback
-fprofile-generate	-xprofile=collect	Generates code to collect profile feedback information
-fprofile-use	-xprofile=use	Uses profile feedback information for optimization
Linker
-shared	-G	Linker: Produce a shared object rather than a dynamically linked executable
-static	-Bstatic	Linker: Link with static versions (.a) of libraries (default is -Bdynamic)