https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67071
--- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> --- Author: meissner Date: Wed Aug 12 21:54:23 2015 New Revision: 226836 URL: https://gcc.gnu.org/viewcvs?rev=226836&root=gcc&view=rev Log: [gcc] 2015-08-12 Michael Meissner <meiss...@linux.vnet.ibm.com> PR target/67071 * config/rs6000/predicates.md (easy_vector_constant_vsldoi): New predicate to allow construction of vector constants using the VSLDOI vector shift instruction. * config/rs6000/rs6000-protos.h (vspltis_shifted): Add declaration. * config/rs6000/rs6000.c (vspltis_shifted): New function to return the number of bytes to be shifted left and filled in with either all zero or all one bits. (gen_easy_altivec_constant): Call vsplitis_shifted if no other methods exist. (output_vec_const_move): On power8, generate XXLORC to generate a vector constant with all 1's. Do a split if we need to use a VSLDOI instruction. * config/rs6000/rs6000.h (EASY_VECTOR_MSB): Use mode mask to properly test for the MSB. * config/rs6000/altivec.md (VSLDOI splitter): Add splitter for vector constants that can be created with VSLDOI. [gcc/testsuite] 2015-08-12 Michael Meissner <meiss...@linux.vnet.ibm.com> PR target/67071 * gcc.target/powerpc/pr67071-1.c: New file to test PR 67071 new vector constants. * gcc.target/powerpc/pr67071-2.c: Likewise. * gcc.target/powerpc/pr67071-3.c: Likewise. Added: trunk/gcc/testsuite/gcc.target/powerpc/pr67071-1.c trunk/gcc/testsuite/gcc.target/powerpc/pr67071-2.c trunk/gcc/testsuite/gcc.target/powerpc/pr67071-3.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/rs6000/altivec.md trunk/gcc/config/rs6000/predicates.md trunk/gcc/config/rs6000/rs6000-protos.h trunk/gcc/config/rs6000/rs6000.c trunk/gcc/config/rs6000/rs6000.h trunk/gcc/testsuite/ChangeLog
