diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index f916b50..af58bfe 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -553,14 +553,15 @@ Objective-C and Objective-C++ Dialects}. -mno-wide-multiply -mrtd -malign-double @gol -mpreferred-stack-boundary=@var{num} -mcx16 -msahf -mrecip @gol -mmmx -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -msse4 @gol --msse4a -m3dnow -mpopcnt -mabm @gol +-msse4a -m3dnow -mpopcnt -mabm -msse5 @gol -mthreads -mno-align-stringops -minline-all-stringops @gol -mpush-args -maccumulate-outgoing-args -m128bit-long-double @gol -m96bit-long-double -mregparm=@var{num} -msseregparm @gol -mveclibabi=@var{type} -mpc32 -mpc64 -mpc80 -mstackrealign @gol -momit-leaf-frame-pointer -mno-red-zone -mno-tls-direct-seg-refs @gol -mcmodel=@var{code-model} @gol --m32 -m64 -mlarge-data-threshold=@var{num}} +-m32 -m64 -mlarge-data-threshold=@var{num} @gol +-mfused-madd -mno-fused-madd} @emph{IA-64 Options} @gccoptlist{-mbig-endian -mlittle-endian -mgnu-as -mgnu-ld -mno-pic @gol @@ -10438,6 +10439,8 @@ preferred alignment to @option{-mpreferred-stack-boundary=2}. @itemx -mno-sse4 @item -msse4a @item -mno-sse4a +@item -msse5 +@itemx -mno-sse5 @item -m3dnow @itemx -mno-3dnow @item -mpopcnt @@ -10451,7 +10454,7 @@ preferred alignment to @option{-mpreferred-stack-boundary=2}. @opindex m3dnow @opindex mno-3dnow These switches enable or disable the use of instructions in the MMX, -SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4A, ABM or 3DNow! extended +SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4A, SSE5, ABM or 3DNow! extended instruction sets. These extensions are also available as built-in functions: see @ref{X86 Built-in Functions}, for details of the functions enabled and @@ -10573,6 +10576,14 @@ is legal depends on the operating system, and whether it maps the segment to cover the entire TLS area. For systems that use GNU libc, the default is on. + +@item -mfused-madd +@itemx -mno-fused-madd +@opindex mfused-madd +Enable automatic generation of fused floating point multiply-add instructions +if the ISA supports such instructions. The -mfused-madd option is on by +default. The fused multiply-add instructions have a different +rounding behavior compared to executing a multiply followed by an add. @end table These @samp{-m} switches are supported in addition to the above |