diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 55 |
1 files changed, 43 insertions, 12 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 56f5d904a80..43d58a3475d 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -949,8 +949,9 @@ See RS/6000 and PowerPC Options. -mquad-memory-atomic -mno-quad-memory-atomic @gol -mcompat-align-parm -mno-compat-align-parm @gol -mupper-regs-df -mno-upper-regs-df -mupper-regs-sf -mno-upper-regs-sf @gol --mupper-regs -mno-upper-regs @gol --mfloat128 -mno-float128} +-mupper-regs -mno-upper-regs -mmodulo -mno-modulo @gol +-mfloat128 -mno-float128 -mfloat128-hardware -mno-float128-hardware @gol +-mpower9-fusion -mno-mpower9-fusion -mpower9-vector -mno-power9-vector} @emph{RX Options} @gccoptlist{-m64bit-doubles -m32bit-doubles -fpu -nofpu@gol @@ -7451,12 +7452,7 @@ The @var{number} should be different for every file you compile. @item -fsched-verbose=@var{n} @opindex fsched-verbose On targets that use instruction scheduling, this option controls the -amount of debugging output the scheduler prints. This information is -written to standard error, unless @option{-fdump-rtl-sched1} or -@option{-fdump-rtl-sched2} is specified, in which case it is output -to the usual dump listing file, @file{.sched1} or @file{.sched2} -respectively. However for @var{n} greater than nine, the output is -always printed to standard error. +amount of debugging output the scheduler prints to the dump files. For @var{n} greater than zero, @option{-fsched-verbose} outputs the same information as @option{-fdump-rtl-sched1} and @option{-fdump-rtl-sched2}. @@ -19316,8 +19312,9 @@ Supported values for @var{cpu_type} are @samp{401}, @samp{403}, @samp{e300c3}, @samp{e500mc}, @samp{e500mc64}, @samp{e5500}, @samp{e6500}, @samp{ec603e}, @samp{G3}, @samp{G4}, @samp{G5}, @samp{titan}, @samp{power3}, @samp{power4}, @samp{power5}, @samp{power5+}, -@samp{power6}, @samp{power6x}, @samp{power7}, @samp{power8}, @samp{powerpc}, -@samp{powerpc64}, @samp{powerpc64le}, and @samp{rs64}. +@samp{power6}, @samp{power6x}, @samp{power7}, @samp{power8}, +@samp{power9}, @samp{powerpc}, @samp{powerpc64}, @samp{powerpc64le}, +and @samp{rs64}. @option{-mcpu=powerpc}, @option{-mcpu=powerpc64}, and @option{-mcpu=powerpc64le} specify pure 32-bit PowerPC (either @@ -19337,7 +19334,8 @@ following options: -mpowerpc-gpopt -mpowerpc-gfxopt -msingle-float -mdouble-float @gol -msimple-fpu -mstring -mmulhw -mdlmzb -mmfpgpr -mvsx @gol -mcrypto -mdirect-move -mpower8-fusion -mpower8-vector @gol --mquad-memory -mquad-memory-atomic} +-mquad-memory -mquad-memory-atomic -mmodulo -mfloat128 -mfloat128-hardware @gol +-mpower9-fusion -mpower9-vector} The particular options set for any particular CPU varies between compiler versions, depending on what setting seems to produce optimal @@ -19574,12 +19572,45 @@ If the @option{-mno-upper-regs} option is used, it turns off both @opindex mfloat128 @opindex mno-float128 Enable/disable the @var{__float128} keyword for IEEE 128-bit floating point -and use software emulation for IEEE 128-bit floating point. +and use either software emulation for IEEE 128-bit floating point or +hardware instructions. The VSX instruction set (@option{-mvsx}, @option{-mcpu=power7}, or @option{-mcpu=power8}) must be enabled to use the @option{-mfloat128} option. +@item -mfloat128-hardware +@itemx -mno-float128-hardware +@opindex mfloat128-hardware +@opindex mno-float128-hardware +Enable/disable using ISA 3.0 hardware instructions to support the +@var{__float128} data type. + +@item -mmodulo +@itemx -mno-modulo +@opindex mmodulo +@opindex mno-module +Generate code that uses (does not use) the ISA 3.0 integer modulo +instructions. The @option{-mmodulo} option is enabled by default +with the @option{-mcpu=power9} option. + +@item -mpower9-fusion +@itemx -mno-power9-fusion +@opindex mpower9-fusion +@opindex mno-power9-fusion +Generate code that keeps (does not keeps) some operations adjacent so +that the instructions can be fused together on power9 and later +processors. + +@item -mpower9-vector +@itemx -mno-power9-vector +@opindex mpower9-vector +@opindex mno-power9-vector +Generate code that uses (does not use) the vector and scalar +instructions that were added in version 2.07 of the PowerPC ISA. Also +enable the use of built-in functions that allow more direct access to +the vector instructions. + @item -mfloat-gprs=@var{yes/single/double/no} @itemx -mfloat-gprs @opindex mfloat-gprs |