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Seger pointed out that the altivec_high_bit insn was not safe if it was called when it could not allocate pseudos. I have removed that insn in this patch. I will revise the patch. I had meant to tie it in with easy_altivec_constant originally, and I will do a patch with that change. Is this revised patch ok to install? There are no references to altivec_high_bit in this patch set, so I just made sure it builds ok just removing the insn. 2015-07-30 Michael Meissner <meissner@linux.vnet.ibm.com> * config/rs6000/vector.md (VEC_L): Add KFmode and TFmode. (VEC_M): Likewise. (VEC_N): Likewise. (mov<mode>, VEC_M iterator): Add support for IEEE 128-bit floating point in VSX registers. * config/rs6000/constraints.md (wb constraint): Document unused w<x> constraint. (we constraint): Likewise. (wo constraint): Likewise. (wp constraint): New constraint for IEEE 128-bit floating point in VSX registers. (wq constraint): Likewise. * config/rs6000/predicates.md (easy_fp_constant): Add support for IEEE 128-bit floating point in VSX registers. (easy_scalar_constant): Likewise. * config/rs6000/rs6000.c (rs6000_debug_reg_global): Add new constraints (wp, wq) for IEEE 128-bit floating point in VSX registers. (rs6000_init_hard_regno_mode_ok): Likewise. * config/rs6000/vsx.md (VSX_LE_128): Add support for IEEE 128-bit floating point in VSX registers. (VSX_L): Likewise. (VSX_M): Likewise. (VSX_M2): Likewise. (VSm): Likewise. (VSs): Likewise. (VSr): Likewise. (VSa): Likewise. (VSv): Likewise. (vsx_le_permute_<mode>): Add support to properly swap bytes for IEEE 128-bit floating point in VSX registers on little endian. (vsx_le_undo_permute_<mode>): Likewise. (vsx_le_perm_load_<mode>): Likewise. (vsx_le_perm_store_<mode>): Likewise. (splitters for IEEE 128-bit fp moves): Likewise. * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Add wp and wq constraints. * config/rs6000/altivec.md (VM): Add support for IEEE 128-bit floating point in VSX registers. (VM2): Likewise. * doc/md.text (Machine Constraints): Document wp and wq constraints on PowerPC. -- Michael Meissner, IBM IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797
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