https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111156
--- Comment #22 from rguenther at suse dot de <rguenther at suse dot de> --- > Am 15.02.2024 um 19:53 schrieb tnfchris at gcc dot gnu.org > <gcc-bugzi...@gcc.gnu.org>: > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111156 > > --- Comment #21 from Tamar Christina <tnfchris at gcc dot gnu.org> --- > (In reply to Richard Biener from comment #18) >> diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc >> index 7cf9504398c..8deeecfd4aa 100644 >> --- a/gcc/tree-vect-slp.cc >> +++ b/gcc/tree-vect-slp.cc >> @@ -1280,8 +1280,11 @@ vect_build_slp_tree_1 (vec_info *vinfo, unsigned char >> *swap, >> && rhs_code.is_tree_code () >> && (TREE_CODE_CLASS (tree_code (first_stmt_code)) >> == tcc_comparison) >> - && (swap_tree_comparison (tree_code (first_stmt_code)) >> - == tree_code (rhs_code))) >> + && ((swap_tree_comparison (tree_code (first_stmt_code)) >> + == tree_code (rhs_code)) >> + || ((TREE_CODE_CLASS (tree_code (alt_stmt_code)) >> + == tcc_comparison) >> + && rhs_code == alt_stmt_code))) >> && !(STMT_VINFO_GROUPED_ACCESS (stmt_info) >> && (first_stmt_code == ARRAY_REF >> || first_stmt_code == BIT_FIELD_REF >> >> should get you SLP but: >> >> t.c:8:26: note: === vect_slp_analyze_operations === >> t.c:8:26: note: ==> examining statement: pretmp_29 = *_28; >> t.c:8:26: missed: unsupported load permutation >> t.c:10:30: missed: not vectorized: relevant stmt not supported: pretmp_29 >> = *_28; >> >> t.c:8:26: note: op template: pretmp_29 = *_28; >> t.c:8:26: note: stmt 0 pretmp_29 = *_28; >> t.c:8:26: note: stmt 1 pretmp_29 = *_28; >> t.c:8:26: note: load permutation { 0 0 } > > hmm with that applied I get: > > sve-mis.c:8:26: note: ==> examining statement: pretmp_29 = *_28; > sve-mis.c:8:26: note: Vectorizing an unaligned access. > sve-mis.c:8:26: note: vect_model_load_cost: unaligned supported by hardware. > sve-mis.c:8:26: note: vect_model_load_cost: inside_cost = 1, prologue_cost = > 0 . > > but it bails out at: > > sve-mis.c:8:26: missed: Not using elementwise accesses due to variable > vectorization factor. > sve-mis.c:10:25: missed: not vectorized: relevant stmt not supported: > .MASK_STORE (_5, 8B, _27, pretmp_29); > sve-mis.c:8:26: missed: bad operation or unsupported loop bound. > > for me I’ve used -fno-cost-model and looked at the SVE variant only. > -- > You are receiving this mail because: > You are the assignee for the bug. > You are on the CC list for the bug.
