https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110897
--- Comment #18 from JuzheZhong <juzhe.zhong at rivai dot ai> --- (In reply to JuzheZhong from comment #17) > Confirm by this try: > https://godbolt.org/z/q7zx5zG5e > > Both ARM SVE trunk GCC and RISC-V GCC failed to vectorize simple > unsigned short shift right, with following failed information: > > <source>:14:1: missed: couldn't vectorize loop > <source>:14:1: missed: not vectorized: relevant stmt not supported: patt_47 > = MIN_EXPR <_7, 15>; > Compiler returned: 0 > > This following code can fix it: > > index 2cedf2384..cda27fed9 100644 > --- a/riscv-gcc/gcc/tree-vect-patterns.cc > +++ b/riscv-gcc/gcc/tree-vect-patterns.cc > @@ -3133,7 +3133,8 @@ vect_recog_over_widening_pattern (vec_info *vinfo, > return NULL; > } > else > - append_pattern_def_seq (vinfo, last_stmt_info, pattern_stmt); > + append_pattern_def_seq (vinfo, last_stmt_info, pattern_stmt, > + op_vectype); > ops[1] = new_var; > } > } > > > Bootstrap and Regression in progress, Ok for trunk ? Bootstrap and regression on X86 passed.
