On 15.07.20 17:53, Stefan Schulze Frielinghaus wrote: > From: Andreas Krebbel <kreb...@linux.ibm.com> > > The IBM z14 POP adds an optional alignment operand to the vl, vst, > vlm, and vstm instruction (vector loads and stores). Vectors residing > on 8 or 16 byte boundaries might get loaded or stored faster on some > models given the instruction uses the proper hint operand. A wrong > hint will hurt performance though. > > The attached testcase align-1 currently fails due to: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88085 > > gcc/ChangeLog: > > 2018-11-21 Andreas Krebbel <kreb...@linux.ibm.com> > > * configure.ac: Add check for Binutils to determine whether vector > load/store alignments hints are being supported. > * config.in: Regenerate. > * configure: Regenerate. > * config/s390/s390.c (print_operand): Support new output > modifier A. > * config/s390/s390.md ("movti"): Append alignment hint output > using the new output modifier 'A'. > * config/s390/vector.md ("mov<mode>", "*vec_tf_to_v1tf") > ("*vec_ti_to_v1ti"): Likewise. > > gcc/testsuite/ChangeLog: > > 2018-11-21 Andreas Krebbel <kreb...@linux.ibm.com> > > * gcc.target/s390/vector/align-1.c: New test. > * gcc.target/s390/vector/align-2.c: New test.
Ok, thanks! Andreas
