Ping. On 11/22/21 1:38 PM, Pat Haugen via Gcc-patches wrote: > Updated version of the patch. Changes made from original are updated > commentary to hopefully aid readability, no functional changes. > > > Implement more two insn constants. rotate_and_mask_constant covers > 64-bit constants that can be formed by rotating a 16-bit signed > constant, rotating a 16-bit signed constant masked on left or right > (rldicl and rldicr), rotating a 16-bit signed constant masked by > rldic, and unusual "lis; rldicl" and "lis; rldicr" patterns. All the > values possible for DImode rs6000_is_valid_and_mask are covered. > > Bootstrapped and regression tested on powerpc64(32/64) and powerpc64le. > Ok for master? > > -Pat > > > 2021-11-22 Alan Modra <amo...@gmail.com> > Pat Haugen <pthau...@linux.ibm.com> > > PR 94393 > gcc/ > * config/rs6000/rs6000.c (rotate_di, is_rotate_positive_constant, > is_rotate_negative_constant, rotate_and_mask_constant): New functions. > (num_insns_constant_multi, rs6000_emit_set_long_const): Use it here. > * config/rs6000/rs6000.md (*movdi_internal64+1 splitter): Delete. > gcc/testsuite/ > * gcc.target/powerpc/rot_cst.h, > * gcc.target/powerpc/rot_cst1.c, > * gcc.target/powerpc/rot_cst2.c: New tests. >
