[llvm-branch-commits] [llvm] AMDGPU: Correct costs of saturating add/sub intrinsics (PR #100808)

via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Fri Jul 26 13:01:39 PDT 2024 

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-analysis

Author: Matt Arsenault (arsenm)

<details>
<summary>Changes</summary>

These are directly legal with fast instructions.

---

Patch is 111.00 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/100808.diff


3 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp (+3-1) 
- (modified) llvm/test/Analysis/CostModel/AMDGPU/arith-ssat.ll (+168-168) 
- (modified) llvm/test/Analysis/CostModel/AMDGPU/arith-usat.ll (+168-168) 


``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
index 8ae236850b982..8689819a40035 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
@@ -738,7 +738,9 @@ GCNTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
   case Intrinsic::usub_sat:
   case Intrinsic::sadd_sat:
   case Intrinsic::ssub_sat:
-    // TODO: Full rate for i32/i16
+    if (SLT == MVT::i16 || SLT == MVT::i32)
+      InstRate = getFullRateInstrCost();
+
     static const auto ValidSatTys = {MVT::v2i16, MVT::v4i16};
     if (any_of(ValidSatTys, [&LT](MVT M) { return M == LT.second; }))
       NElts = 1;
diff --git a/llvm/test/Analysis/CostModel/AMDGPU/arith-ssat.ll b/llvm/test/Analysis/CostModel/AMDGPU/arith-ssat.ll
index b3175067ac526..3c80ada6b5143 100644
--- a/llvm/test/Analysis/CostModel/AMDGPU/arith-ssat.ll
+++ b/llvm/test/Analysis/CostModel/AMDGPU/arith-ssat.ll
@@ -46,27 +46,27 @@ define i32 @add(i32 %arg) {
 ; FAST-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V4I64 = call <4 x i64> @llvm.sadd.sat.v4i64(<4 x i64> undef, <4 x i64> undef)
 ; FAST-NEXT:  Cost Model: Found an estimated cost of 96 for instruction: %V5I64 = call <5 x i64> @llvm.sadd.sat.v5i64(<5 x i64> undef, <5 x i64> undef)
 ; FAST-NEXT:  Cost Model: Found an estimated cost of 96 for instruction: %V8I64 = call <8 x i64> @llvm.sadd.sat.v8i64(<8 x i64> undef, <8 x i64> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 108 for instruction: %V9I32 = call <9 x i32> @llvm.sadd.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 192 for instruction: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 192 for instruction: %V17I16 = call <17 x i16> @llvm.sadd.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 192 for instruction: %V32I16 = call <32 x i16> @llvm.sadd.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %I8 = call i8 @llvm.sadd.sat.i8(i8 undef, i8 undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V2I8 = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V4I8 = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V8I8 = call <8 x i8> @llvm.sadd.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 64 for instruction: %V16I8 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 128 for instruction: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 264 for instruction: %V33I8 = call <33 x i8> @llvm.sadd.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
-; FAST-NEXT:  Cost Model: Found an estimated cost of 264 for instruction: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V9I32 = call <9 x i32> @llvm.sadd.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 48 for instruction: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 48 for instruction: %V17I16 = call <17 x i16> @llvm.sadd.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 48 for instruction: %V32I16 = call <32 x i16> @llvm.sadd.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I8 = call i8 @llvm.sadd.sat.i8(i8 undef, i8 undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2I8 = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4I8 = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V8I8 = call <8 x i8> @llvm.sadd.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16I8 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 66 for instruction: %V33I8 = call <33 x i8> @llvm.sadd.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
+; FAST-NEXT:  Cost Model: Found an estimated cost of 66 for instruction: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
 ; FAST-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: ret i32 undef
 ;
 ; SLOW-LABEL: 'add'
@@ -75,27 +75,27 @@ define i32 @add(i32 %arg) {
 ; SLOW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V4I64 = call <4 x i64> @llvm.sadd.sat.v4i64(<4 x i64> undef, <4 x i64> undef)
 ; SLOW-NEXT:  Cost Model: Found an estimated cost of 96 for instruction: %V5I64 = call <5 x i64> @llvm.sadd.sat.v5i64(<5 x i64> undef, <5 x i64> undef)
 ; SLOW-NEXT:  Cost Model: Found an estimated cost of 96 for instruction: %V8I64 = call <8 x i64> @llvm.sadd.sat.v8i64(<8 x i64> undef, <8 x i64> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 108 for instruction: %V9I32 = call <9 x i32> @llvm.sadd.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 192 for instruction: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 64 for instruction: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 136 for instruction: %V17I16 = call <17 x i16> @llvm.sadd.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 136 for instruction: %V32I16 = call <32 x i16> @llvm.sadd.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %I8 = call i8 @llvm.sadd.sat.i8(i8 undef, i8 undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V2I8 = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V4I8 = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V8I8 = call <8 x i8> @llvm.sadd.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 64 for instruction: %V16I8 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 128 for instruction: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 264 for instruction: %V33I8 = call <33 x i8> @llvm.sadd.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
-; SLOW-NEXT:  Cost Model: Found an estimated cost of 264 for instruction: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V9I32 = call <9 x i32> @llvm.sadd.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 48 for instruction: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 34 for instruction: %V17I16 = call <17 x i16> @llvm.sadd.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 34 for instruction: %V32I16 = call <32 x i16> @llvm.sadd.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I8 = call i8 @llvm.sadd.sat.i8(i8 undef, i8 undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2I8 = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4I8 = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V8I8 = call <8 x i8> @llvm.sadd.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16I8 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 66 for instruction: %V33I8 = call <33 x i8> @llvm.sadd.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
+; SLOW-NEXT:  Cost Model: Found an estimated cost of 66 for instruction: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
 ; SLOW-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: ret i32 undef
 ;
 ; FAST-SIZE-LABEL: 'add'
@@ -104,27 +104,27 @@ define i32 @add(i32 %arg) {
 ; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V4I64 = call <4 x i64> @llvm.sadd.sat.v4i64(<4 x i64> undef, <4 x i64> undef)
 ; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 48 for instruction: %V5I64 = call <5 x i64> @llvm.sadd.sat.v5i64(<5 x i64> undef, <5 x i64> undef)
 ; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 48 for instruction: %V8I64 = call <8 x i64> @llvm.sadd.sat.v8i64(<8 x i64> undef, <8 x i64> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 54 for instruction: %V9I32 = call <9 x i32> @llvm.sadd.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 96 for instruction: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 96 for instruction: %V17I16 = call <17 x i16> @llvm.sadd.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 96 for instruction: %V32I16 = call <32 x i16> @llvm.sadd.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.sadd.sat.i8(i8 undef, i8 undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2I8 = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V4I8 = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V8I8 = call <8 x i8> @llvm.sadd.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V16I8 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 64 for instruction: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 132 for instruction: %V33I8 = call <33 x i8> @llvm.sadd.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
-; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 132 for instruction: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V9I32 = call <9 x i32> @llvm.sadd.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 48 for instruction: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an estimated cost of 48 for instruction: %V17I16 = call <17 x i16> @llvm.sadd.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
+; FAST-SIZE-NEXT:  Cost Model: Found an est...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/100808

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