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(gcc-300.info)IA-64 Options

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IA-64 Options
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   These are the `-m' options defined for the Intel IA-64 architecture.

`-mbig-endian'
     Generate code for a big endian target.  This is the default for
     HPUX.

`-mlittle-endian'
     Generate code for a little endian target.  This is the default for
     AIX5 and Linux.

`-mgnu-as'
`-mno-gnu-as'
     Generate (or don't) code for the GNU assembler.  This is the
     default.

`-mgnu-ld'
`-mno-gnu-ld'
     Generate (or don't) code for the GNU linker.  This is the default.

`-mno-pic'
     Generate code that does not use a global pointer register.  The
     result is not position independent code, and violates the IA-64
     ABI.

`-mvolatile-asm-stop'
`-mno-volatile-asm-stop'
     Generate (or don't) a stop bit immediately before and after
     volatile asm statements.

`-mb-step'
     Generate code that works around Itanium B step errata.

`-mregister-names'
`-mno-register-names'
     Generate (or don't) `in', `loc', and `out' register names for the
     stacked registers.  This may make assembler output more readable.

`-mno-sdata'
`-msdata'
     Disable (or enable) optimizations that use the small data section.
     This may be useful for working around optimizer bugs.

`-mconstant-gp'
     Generate code that uses a single constant global pointer value.
     This is useful when compiling kernel code.

`-mauto-pic'
     Generate code that is self-relocatable.  This implies
     `-mconstant-gp'.  This is useful when compiling firmware code.

`-minline-divide-min-latency'
     Generate code for inline divides using the minimum latency
     algorithm.

`-minline-divide-max-throughput'
     Generate code for inline divides using the maximum throughput
     algorithm.

`-mno-dwarf2-asm'
`-mdwarf2-asm'
     Don't (or do) generate assembler code for the DWARF2 line number
     debugging info.  This may be useful when not using the GNU
     assembler.

`-mfixed-range=REGISTER-RANGE'
     Generate code treating the given register range as fixed registers.
     A fixed register is one that the register allocator can not use.
     This is useful when compiling kernel code.  A register range is
     specified as two registers separated by a dash.  Multiple register
     ranges can be specified separated by a comma.