[PATCH] D157413: [SLP]Use common logic for cost estimation of the alternate vector nodes.

Alexey Bataev via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Aug 9 11:53:36 PDT 2023


This revision was automatically updated to reflect the committed changes.
Closed by commit rGc619222ea43e: [SLP]Use common logic for cost estimation of the alternate vector nodes. (authored by ABataev).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D157413/new/

https://reviews.llvm.org/D157413

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/PhaseOrdering/X86/vector-reductions-logical.ll


Index: llvm/test/Transforms/PhaseOrdering/X86/vector-reductions-logical.ll
===================================================================
--- llvm/test/Transforms/PhaseOrdering/X86/vector-reductions-logical.ll
+++ llvm/test/Transforms/PhaseOrdering/X86/vector-reductions-logical.ll
@@ -86,17 +86,16 @@
 define float @test_merge_anyof_v4sf(<4 x float> %t) {
 ; CHECK-LABEL: @test_merge_anyof_v4sf(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = shufflevector <4 x float> [[T:%.*]], <4 x float> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
-; CHECK-NEXT:    [[TMP1:%.*]] = fcmp ogt <8 x float> [[TMP0]], <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00>
-; CHECK-NEXT:    [[TMP2:%.*]] = fcmp olt <8 x float> [[TMP0]], <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00>
-; CHECK-NEXT:    [[TMP3:%.*]] = shufflevector <8 x i1> [[TMP1]], <8 x i1> [[TMP2]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 12, i32 13, i32 14, i32 15>
-; CHECK-NEXT:    [[TMP4:%.*]] = freeze <8 x i1> [[TMP3]]
-; CHECK-NEXT:    [[TMP5:%.*]] = bitcast <8 x i1> [[TMP4]] to i8
-; CHECK-NEXT:    [[DOTNOT:%.*]] = icmp eq i8 [[TMP5]], 0
-; CHECK-NEXT:    [[SHIFT:%.*]] = shufflevector <4 x float> [[T]], <4 x float> poison, <4 x i32> <i32 1, i32 poison, i32 poison, i32 poison>
-; CHECK-NEXT:    [[TMP6:%.*]] = fadd <4 x float> [[SHIFT]], [[T]]
-; CHECK-NEXT:    [[ADD:%.*]] = extractelement <4 x float> [[TMP6]], i64 0
-; CHECK-NEXT:    [[RETVAL_0:%.*]] = select i1 [[DOTNOT]], float [[ADD]], float 0.000000e+00
+; CHECK-NEXT:    [[T_FR:%.*]] = freeze <4 x float> [[T:%.*]]
+; CHECK-NEXT:    [[TMP0:%.*]] = fcmp olt <4 x float> [[T_FR]], zeroinitializer
+; CHECK-NEXT:    [[TMP1:%.*]] = fcmp ogt <4 x float> [[T_FR]], <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>
+; CHECK-NEXT:    [[TMP2:%.*]] = or <4 x i1> [[TMP1]], [[TMP0]]
+; CHECK-NEXT:    [[TMP3:%.*]] = bitcast <4 x i1> [[TMP2]] to i4
+; CHECK-NEXT:    [[OP_RDX_NOT:%.*]] = icmp eq i4 [[TMP3]], 0
+; CHECK-NEXT:    [[SHIFT:%.*]] = shufflevector <4 x float> [[T_FR]], <4 x float> poison, <4 x i32> <i32 1, i32 poison, i32 poison, i32 poison>
+; CHECK-NEXT:    [[TMP4:%.*]] = fadd <4 x float> [[T_FR]], [[SHIFT]]
+; CHECK-NEXT:    [[ADD:%.*]] = extractelement <4 x float> [[TMP4]], i64 0
+; CHECK-NEXT:    [[RETVAL_0:%.*]] = select i1 [[OP_RDX_NOT]], float [[ADD]], float 0.000000e+00
 ; CHECK-NEXT:    ret float [[RETVAL_0]]
 ;
 entry:
@@ -401,18 +400,16 @@
 define float @test_merge_anyof_v4si(<4 x i32> %t) {
 ; CHECK-LABEL: @test_merge_anyof_v4si(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = shufflevector <4 x i32> [[T:%.*]], <4 x i32> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp sgt <8 x i32> [[TMP0]], <i32 255, i32 255, i32 255, i32 255, i32 1, i32 1, i32 1, i32 1>
-; CHECK-NEXT:    [[TMP2:%.*]] = icmp slt <8 x i32> [[TMP0]], <i32 255, i32 255, i32 255, i32 255, i32 1, i32 1, i32 1, i32 1>
-; CHECK-NEXT:    [[TMP3:%.*]] = shufflevector <8 x i1> [[TMP1]], <8 x i1> [[TMP2]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 12, i32 13, i32 14, i32 15>
-; CHECK-NEXT:    [[TMP4:%.*]] = freeze <8 x i1> [[TMP3]]
-; CHECK-NEXT:    [[TMP5:%.*]] = bitcast <8 x i1> [[TMP4]] to i8
-; CHECK-NEXT:    [[DOTNOT:%.*]] = icmp eq i8 [[TMP5]], 0
-; CHECK-NEXT:    [[SHIFT:%.*]] = shufflevector <4 x i32> [[T]], <4 x i32> poison, <4 x i32> <i32 1, i32 poison, i32 poison, i32 poison>
-; CHECK-NEXT:    [[TMP6:%.*]] = add nsw <4 x i32> [[SHIFT]], [[T]]
-; CHECK-NEXT:    [[ADD:%.*]] = extractelement <4 x i32> [[TMP6]], i64 0
+; CHECK-NEXT:    [[T_FR:%.*]] = freeze <4 x i32> [[T:%.*]]
+; CHECK-NEXT:    [[TMP0:%.*]] = add <4 x i32> [[T_FR]], <i32 -256, i32 -256, i32 -256, i32 -256>
+; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult <4 x i32> [[TMP0]], <i32 -255, i32 -255, i32 -255, i32 -255>
+; CHECK-NEXT:    [[TMP2:%.*]] = bitcast <4 x i1> [[TMP1]] to i4
+; CHECK-NEXT:    [[OP_RDX_NOT:%.*]] = icmp eq i4 [[TMP2]], 0
+; CHECK-NEXT:    [[SHIFT:%.*]] = shufflevector <4 x i32> [[T_FR]], <4 x i32> poison, <4 x i32> <i32 1, i32 poison, i32 poison, i32 poison>
+; CHECK-NEXT:    [[TMP3:%.*]] = add nsw <4 x i32> [[T_FR]], [[SHIFT]]
+; CHECK-NEXT:    [[ADD:%.*]] = extractelement <4 x i32> [[TMP3]], i64 0
 ; CHECK-NEXT:    [[CONV:%.*]] = sitofp i32 [[ADD]] to float
-; CHECK-NEXT:    [[RETVAL_0:%.*]] = select i1 [[DOTNOT]], float [[CONV]], float 0.000000e+00
+; CHECK-NEXT:    [[RETVAL_0:%.*]] = select i1 [[OP_RDX_NOT]], float [[CONV]], float 0.000000e+00
 ; CHECK-NEXT:    ret float [[RETVAL_0]]
 ;
 entry:
Index: llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
===================================================================
--- llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -8039,21 +8039,16 @@
         VecCost += TTI->getCastInstrCost(E->getAltOpcode(), VecTy, Src1Ty,
                                          TTI::CastContextHint::None, CostKind);
       }
-      if (E->ReuseShuffleIndices.empty()) {
-        VecCost +=
-            TTI->getShuffleCost(TargetTransformInfo::SK_Select, FinalVecTy);
-      } else {
-        SmallVector<int> Mask;
-        buildShuffleEntryMask(
-            E->Scalars, E->ReorderIndices, E->ReuseShuffleIndices,
-            [E](Instruction *I) {
-              assert(E->isOpcodeOrAlt(I) && "Unexpected main/alternate opcode");
-              return I->getOpcode() == E->getAltOpcode();
-            },
-            Mask);
-        VecCost += TTI->getShuffleCost(TargetTransformInfo::SK_PermuteTwoSrc,
-                                       FinalVecTy, Mask);
-      }
+      SmallVector<int> Mask;
+      buildShuffleEntryMask(
+          E->Scalars, E->ReorderIndices, E->ReuseShuffleIndices,
+          [E](Instruction *I) {
+            assert(E->isOpcodeOrAlt(I) && "Unexpected main/alternate opcode");
+            return I->getOpcode() == E->getAltOpcode();
+          },
+          Mask);
+      VecCost += TTI->getShuffleCost(TargetTransformInfo::SK_PermuteTwoSrc,
+                                     FinalVecTy, Mask);
       return VecCost;
     };
     return GetCostDiff(GetScalarCost, GetVectorCost);


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