[gcc]
2016-06-15 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/vsx.md (VSINT_84): Add DImode to enable loading
DImode constants with XXSPLTIB in vector registers.
(vsx_extract_<mode>, V2DImode/V2DFmode): Combine both
vsx_extract_<mode>_internal{1,2} into a single insn that handles
direct move (both ISA 2.07 and ISA 3.0 versions), and optimizes
extraction of the element at the top of the register as a scalar
value.
(vsx_extract_<mode>_internal1): Likewise.
(vsx_extract_<mode>_internal2): Likewise.
* config/rs6000/constraints.md (wi constraint): Remove a comment
about DImode not being allowed in Altivec registers.
(wB constraint): New constraint for constants that can be
generated in Altivec registers with VSPLTISW/VUPKHSW.
* config/rs6000/predicates.md (xxspltib_constant_split): Update
comments.
(xxspltib_constant_nosplit): Likewise.
* config/rs6000/rs6000-cpus.def (ISA_2_6_MASKS_SERVER): Add
support for -mupper-regs-di to enable DImode to go into Altivec
registers.
(POWERPC_MASKS): Likewise.
(power7 cpu): Likewise.
* config/rs6000/rs6000.opt (-mupper-regs-di): Likewise.
* config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Add support
for DImode being allowed in Altivec registers. Update wi/wj
constraints. Set scalar_in_vmx_p flag.
(rs6000_option_override_internal): Add checks for -mupper-regs-di.
(xxspltib_constant_p): Allow CONST_INT's with VOIDmode. Don't
return true if we could use VSPLTISW/VUPKHSW instead of XXSPLTIB.
(rs6000_opt_masks): Add -mupper-regs-di.
* config/rs6000/rs6000.md (lfiwax): Update clobbers that don't use
direct move to use wi and not wj.
(lfiwzx): Likewise.
(floatsi<mode>2_lfiwax_mem): Combine alternatives into a single
alternative.
(floatunssi<mode>2_lfiwzx_mem): Likewise.
(fix_trunc<mode>di2_fctidz): Change second alternative to allow
any VSX register, instead of just Altivec registers, to allow
either operand to be an Altivec register or both.
(fixuns_trunc<mode>di2_fctiduz): Likewise.
(movdi_internal32): Add support for -mupper-regs-di. Add support
to load constants via XXSPLTIB or VSPLTISW. Add spacing to allow
the alternatives and attributes to be lined up to be easier to
read.
(movdi_internal64): Likewise.
(64-bit DImode splitters): Change predicates to only split loading
up GPR registers. Add splits for using XXSPLTIB or VSPLTISW to
load constants in ISA 3.0 or ISA 2.07 respectively.
* doc/invoke.texi (RS/6000 and PowerPC Options): Document
-mupper-regs-di. Update -mupper-regs-df and -mupper-regs-sf to
mention -mcpu=power9 sets these options.
* doc/md.texi (PowerPC and IBM RS6000 constraints): Document the
wB constraint.
[gcc/testsuite]
2016-06-15 Michael Meissner <meissner@linux.vnet.ibm.com>
* gcc.target/powerpc/p9-dimode1.c: New test.
* gcc.target/powerpc/p9-dimode2.c: Likewise.
From-SVN: r237490
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