I noticed I forgot to include one of the changes in the ChangeLog file (rtx_is_swappable_p). This change was originally meant to be in the previous patch, and it got left out. The corrected ChangeLog is:
[gcc] 2016-07-30 Michael Meissner <meiss...@linux.vnet.ibm.com> * config/rs6000/rs6000-protos.h (rs6000_adjust_vec_address): New function that takes a vector memory address, a hard register, an element number and a temporary base register, and recreates an address that points to the appropriate element within the vector. * config/rs6000/rs6000.c (rs6000_adjust_vec_address): Likewise. (rs6000_split_vec_extract_var): Add support for the target of a vec_extract with variable element number being a scalar memory location. * config/rs6000/vsx.md (vsx_extract_<mode>_load): Replace vsx_extract_<mode>_load insn with a new insn that optimizes storing either element to a memory location, using scratch registers to pick apart the vector and reconstruct the address. (vsx_extract_<P:mode>_<VSX_D:mode>_load): Likewise. (vsx_extract_<mode>_store): Rework alternatives to more correctly support Altivec registers. Add support for ISA 3.0 Altivec d-form store instruction. (vsx_extract_<mode>_var): Add support for extracting a variable element number from memory. (rtx_is_swappable_p): VLSO insns (UNSPEC_VSX_VSLOW) are not swappable. [gcc/testsuite] 2016-07-30 Michael Meissner <meiss...@linux.vnet.ibm.com> * gcc.target/powerpc/vec-extract-2.c: New tests for vec_extract of vector double or vector long where the vector is in memory. * gcc.target/powerpc/vec-extract-3.c: Likewise. * gcc.target/powerpc/vec-extract-4.c: Likewise. -- Michael Meissner, IBM IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA email: meiss...@linux.vnet.ibm.com, phone: +1 (978) 899-4797