On Fri, Oct 23, 2015 at 1:30 PM, Michael Meissner
<meiss...@linux.vnet.ibm.com> wrote:
> This patch changes the switch from -mfloat128-software and -mfloat128-none to
> be a binary switch, -mfloat128 and -mno-float128. It also provides some of
> the
> basic setup for IEEE types. It also removes code I had put in a previous
> patch
> that doesn't allow IFmode/KFmode to go in any register if -mno-float128 (this
> causes some reload problems).
>
> I have built the compiler with this patch and subpatch #1 installed. I have
> built the compiler with all 16 subpatches and had no regressions. Is this
> patch ok to install in the trunk?
>
> 2015-10-22 Michael Meissner <meiss...@linux.vnet.ibm.com>
>
> * config/rs6000/rs6000.opt (-mfloat128-*): Delete -mfloat128-none
> and -mfloat128-software switches. Replace them with a binary
> -mfloat128 switch.
> (-mfloat128): Likewise.
>
> * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Allow
> 128-bit floating point types in GPRs, even if the appropriate
> option enabling the type was not used.
> (rs6000_debug_reg_global): Remove -mfloat128-{software,none}
> debugging.
> (rs6000_setup_reg_addr_masks): Do not allow pre-increment and
> pre-decrement on IEEE 128-bit floating point values.
> (rs6000_init_hard_regno_mode_ok): Change test for whether TFmode
> is IEEE 128-bit floating point.
> (rs6000_init_hard_regno_mode_ok): Add reload handlers for IEEE
> 128-bit floating point types that can go in vector registers.
> (rs6000_option_override_internal): Change -mfloat128-none and
> -mfloat128-software to -mfloat128, and move code to be near other
> VSX option handling.
> (rs6000_option_override_internal): Disable -mfloat128 if we don't
> have the Altivec ABI.
> (rs6000_init_builtins): Don't make TFmode use either IFmode or
> KFmode floating point nodes. Instead, have three separate nodes.
> (rs6000_scalar_mode_supported_p): Add support for IFmode to allow
> eventually moving the long double default to IEEE 128-bit floating
> point.
> (rs6000_opt_masks): Add -mfloat128.
> (struct rs6000_opt_var): Fix typo in comment.
>
> * config/rs6000/rs6000-cpus.def (POWERPC_MASKS): Add -mfloat128 as
> an option that can be turned on via -mcpu=<xxx>.
>
> * config/rs6000/rs6000-opts.h (enum float128_type_t): Delete, no
> longer used.
Okay.
Thanks, David
