================
@@ -2993,6 +2993,22 @@ let Predicates = [HasSVE_or_SME] in {
defm : unpred_loadstore_bitcast<nxv2i64>;
defm : unpred_loadstore_bitcast<nxv2f64>;
+ // Allow using LDR/STR to avoid the predicate dependence.
+ let Predicates = [IsLE, AllowMisalignedMemAccesses] in
+ foreach Ty = [ nxv16i8, nxv8i16, nxv4i32, nxv2i64, nxv8f16, nxv4f32,
nxv2f64, nxv8bf16 ] in {
+ let AddedComplexity = 2 in {
+ def : Pat<(Ty (load (am_sve_indexed_s9 GPR64sp:$base, simm9:$offset))),
+ (LDR_ZXI GPR64sp:$base, simm9:$offset)>;
+ def : Pat<(store Ty:$val, (am_sve_indexed_s9 GPR64sp:$base,
simm9:$offset)),
+ (STR_ZXI ZPR:$val, GPR64sp:$base, simm9:$offset)>;
+ }
----------------
rj-jesus wrote:
Ah, I see! Thanks very much, that makes sense! What if I absorb the current
patterns into the loop so that we still have unconventional loads/stores
grouped together, and add `HasSVE_or_SME` (from the parent definition) to the
predicates? Or do you have a better suggestion?
https://github.com/llvm/llvm-project/pull/127837
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