diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 93943cb58c6..9846a73079d 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -940,7 +940,9 @@ See RS/6000 and PowerPC Options. -mcrypto -mno-crypto -mdirect-move -mno-direct-move @gol -mquad-memory -mno-quad-memory @gol -mquad-memory-atomic -mno-quad-memory-atomic @gol --mcompat-align-parm -mno-compat-align-parm} +-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} @emph{RX Options} @gccoptlist{-m64bit-doubles -m32bit-doubles -fpu -nofpu@gol @@ -19729,6 +19731,39 @@ Generate code that uses (does not use) the atomic quad word memory instructions. The @option{-mquad-memory-atomic} option requires use of 64-bit mode. +@item -mupper-regs-df +@itemx -mno-upper-regs-df +@opindex mupper-regs-df +@opindex mno-upper-regs-df +Generate code that uses (does not use) the scalar double precision +instructions that target all 64 registers in the vector/scalar +floating point register set that were added in version 2.06 of the +PowerPC ISA. The @option{-mupper-regs-df} turned on by default if you +use either of the @option{-mcpu=power7}, @option{-mcpu=power8}, or +@option{-mvsx} options. + +@item -mupper-regs-sf +@itemx -mno-upper-regs-sf +@opindex mupper-regs-sf +@opindex mno-upper-regs-sf +Generate code that uses (does not use) the scalar single precision +instructions that target all 64 registers in the vector/scalar +floating point register set that were added in version 2.07 of the +PowerPC ISA. The @option{-mupper-regs-sf} turned on by default if you +use either of the @option{-mcpu=power8}, or @option{-mpower8-vector} +options. + +@item -mupper-regs +@itemx -mno-upper-regs +@opindex mupper-regs +@opindex mno-upper-regs +Generate code that uses (does not use) the scalar +instructions that target all 64 registers in the vector/scalar +floating point register set, depending on the model of the machine. + +If the @option{-mno-upper-regs} option was used, it will turn off both +@option{-mupper-regs-sf} and @option{-mupper-regs-df} options. + @item -mfloat-gprs=@var{yes/single/double/no} @itemx -mfloat-gprs @opindex mfloat-gprs |