https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87815
--- Comment #1 from Renlin Li <renlin at gcc dot gnu.org> --- Author: renlin Date: Mon Nov 12 16:47:24 2018 New Revision: 266033 URL: https://gcc.gnu.org/viewcvs?rev=266033&root=gcc&view=rev Log: [PR87815]Don't generate shift sequence for load replacement in DSE when the mode size is not compile-time constant The patch adds a check if the gap is compile-time constant. This happens when dse decides to replace the load with previous store value. The problem is that, shift sequence could not accept compile-time non-constant mode operand. gcc/ 2018-11-12 Renlin Li <renlin...@arm.com> PR target/87815 * dse.c (get_stored_val): Add check for compile-time constantness of gap. gcc/testsuite/ 2018-11-12 Renlin Li <renlin...@arm.com> PR target/87815 * gcc.target/aarch64/sve/pr87815.c: New. Added: trunk/gcc/testsuite/gcc.target/aarch64/sve/pr87815.c Modified: trunk/gcc/ChangeLog trunk/gcc/dse.c trunk/gcc/testsuite/ChangeLog
