[llvm] [AArch64] [CostModel] Fix cost modelling for saturating arithmetic intrinsics (PR #152333)
Benjamin Maxwell via llvm-commits
llvm-commits at lists.llvm.org
Thu Aug 7 09:49:41 PDT 2025
================
@@ -31,31 +32,31 @@ declare <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8>, <32 x i8>)
declare <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8>, <64 x i8>)
define i32 @add(i32 %arg) {
-; CHECK-LABEL: 'add'
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %I64 = call i64 @llvm.sadd.sat.i64(i64 undef, i64 undef)
-; CHECK-NEXT: Cost Model: Found costs of 1 for: %V2I64 = call <2 x i64> @llvm.sadd.sat.v2i64(<2 x i64> undef, <2 x i64> undef)
-; CHECK-NEXT: Cost Model: Found costs of 2 for: %V4I64 = call <4 x i64> @llvm.sadd.sat.v4i64(<4 x i64> undef, <4 x i64> undef)
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %V8I64 = call <8 x i64> @llvm.sadd.sat.v8i64(<8 x i64> undef, <8 x i64> undef)
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
-; CHECK-NEXT: Cost Model: Found costs of 1 for: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
-; CHECK-NEXT: Cost Model: Found costs of 1 for: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
-; CHECK-NEXT: Cost Model: Found costs of 2 for: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
-; CHECK-NEXT: Cost Model: Found costs of 1 for: %V3I32 = call <3 x i32> @llvm.sadd.sat.v3i32(<3 x i32> undef, <3 x i32> undef)
-; CHECK-NEXT: Cost Model: Found costs of 6 for: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
-; CHECK-NEXT: Cost Model: Found costs of 1 for: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
-; CHECK-NEXT: Cost Model: Found costs of 1 for: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
-; CHECK-NEXT: Cost Model: Found costs of 2 for: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %V32I16 = call <32 x i16> @llvm.sadd.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
-; CHECK-NEXT: Cost Model: Found costs of 6 for: %I8 = call i8 @llvm.sadd.sat.i8(i8 undef, i8 undef)
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %V2I8 = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %V4I8 = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
-; CHECK-NEXT: Cost Model: Found costs of 1 for: %V8I8 = call <8 x i8> @llvm.sadd.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
-; CHECK-NEXT: Cost Model: Found costs of 1 for: %V16I8 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
-; CHECK-NEXT: Cost Model: Found costs of 2 for: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
-; CHECK-NEXT: Cost Model: Found costs of 4 for: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
-; CHECK-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret i32 undef
+; BASE-LABEL: 'add'
+; BASE-NEXT: Cost Model: Found costs of 4 for: %I64 = call i64 @llvm.sadd.sat.i64(i64 undef, i64 undef)
+; BASE-NEXT: Cost Model: Found costs of 1 for: %V2I64 = call <2 x i64> @llvm.sadd.sat.v2i64(<2 x i64> undef, <2 x i64> undef)
+; BASE-NEXT: Cost Model: Found costs of 2 for: %V4I64 = call <4 x i64> @llvm.sadd.sat.v4i64(<4 x i64> undef, <4 x i64> undef)
+; BASE-NEXT: Cost Model: Found costs of 4 for: %V8I64 = call <8 x i64> @llvm.sadd.sat.v8i64(<8 x i64> undef, <8 x i64> undef)
+; BASE-NEXT: Cost Model: Found costs of 4 for: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
+; BASE-NEXT: Cost Model: Found costs of 1 for: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
+; BASE-NEXT: Cost Model: Found costs of 1 for: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
+; BASE-NEXT: Cost Model: Found costs of 2 for: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
+; BASE-NEXT: Cost Model: Found costs of 4 for: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
+; BASE-NEXT: Cost Model: Found costs of 1 for: %V3I32 = call <3 x i32> @llvm.sadd.sat.v3i32(<3 x i32> undef, <3 x i32> undef)
+; BASE-NEXT: Cost Model: Found costs of 6 for: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
+; BASE-NEXT: Cost Model: Found costs of 4 for: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
+; BASE-NEXT: Cost Model: Found costs of 1 for: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
+; BASE-NEXT: Cost Model: Found costs of 1 for: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
+; BASE-NEXT: Cost Model: Found costs of 2 for: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
+; BASE-NEXT: Cost Model: Found costs of 4 for: %V32I16 = call <32 x i16> @llvm.sadd.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
+; BASE-NEXT: Cost Model: Found costs of 6 for: %I8 = call i8 @llvm.sadd.sat.i8(i8 undef, i8 undef)
+; BASE-NEXT: Cost Model: Found costs of 4 for: %V2I8 = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
+; BASE-NEXT: Cost Model: Found costs of 4 for: %V4I8 = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
+; BASE-NEXT: Cost Model: Found costs of 1 for: %V8I8 = call <8 x i8> @llvm.sadd.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
+; BASE-NEXT: Cost Model: Found costs of 1 for: %V16I8 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
+; BASE-NEXT: Cost Model: Found costs of 2 for: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
+; BASE-NEXT: Cost Model: Found costs of 4 for: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
+; BASE-NEXT: Cost Model: Found costs of RThru:0 CodeSize:1 Lat:1 SizeLat:1 for: ret i32 undef
;
----------------
MacDue wrote:
Was this test manually edited? As with the current checks I'd expect to see `SVE-NEXT` checks here too.
https://github.com/llvm/llvm-project/pull/152333
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