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Enhance BBVectorize to more-properly handle pointer values and vectorize GEPs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154734 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hal Finkel
parent
0070792012
commit
f3f5a1e6f7
@ -34,6 +34,9 @@ struct VectorizeConfig {
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/// @brief Vectorize floating-point values.
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bool VectorizeFloats;
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/// @brief Vectorize pointer values.
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bool VectorizePointers;
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/// @brief Vectorize casting (conversion) operations.
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bool VectorizeCasts;
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@ -46,6 +49,9 @@ struct VectorizeConfig {
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/// @brief Vectorize select instructions.
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bool VectorizeSelect;
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/// @brief Vectorize getelementptr instructions.
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bool VectorizeGEP;
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/// @brief Vectorize loads and stores.
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bool VectorizeMemOps;
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@ -83,6 +83,10 @@ static cl::opt<bool>
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NoFloats("bb-vectorize-no-floats", cl::init(false), cl::Hidden,
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cl::desc("Don't try to vectorize floating-point values"));
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static cl::opt<bool>
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NoPointers("bb-vectorize-no-pointers", cl::init(false), cl::Hidden,
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cl::desc("Don't try to vectorize pointer values"));
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static cl::opt<bool>
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NoCasts("bb-vectorize-no-casts", cl::init(false), cl::Hidden,
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cl::desc("Don't try to vectorize casting (conversion) operations"));
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@ -99,6 +103,10 @@ static cl::opt<bool>
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NoSelect("bb-vectorize-no-select", cl::init(false), cl::Hidden,
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cl::desc("Don't try to vectorize select instructions"));
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static cl::opt<bool>
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NoGEP("bb-vectorize-no-gep", cl::init(false), cl::Hidden,
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cl::desc("Don't try to vectorize getelementptr instructions"));
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static cl::opt<bool>
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NoMemOps("bb-vectorize-no-mem-ops", cl::init(false), cl::Hidden,
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cl::desc("Don't try to vectorize loads and stores"));
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@ -550,15 +558,22 @@ namespace {
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return false;
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Type *SrcTy = C->getSrcTy();
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if (!SrcTy->isSingleValueType() || SrcTy->isPointerTy())
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if (!SrcTy->isSingleValueType())
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return false;
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Type *DestTy = C->getDestTy();
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if (!DestTy->isSingleValueType() || DestTy->isPointerTy())
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if (!DestTy->isSingleValueType())
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return false;
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} else if (isa<SelectInst>(I)) {
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if (!Config.VectorizeSelect)
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return false;
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} else if (GetElementPtrInst *G = dyn_cast<GetElementPtrInst>(I)) {
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if (!Config.VectorizeGEP)
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return false;
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// Currently, vector GEPs exist only with one index.
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if (G->getNumIndices() != 1)
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return false;
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} else if (!(I->isBinaryOp() || isa<ShuffleVectorInst>(I) ||
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isa<ExtractElementInst>(I) || isa<InsertElementInst>(I))) {
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return false;
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@ -597,6 +612,14 @@ namespace {
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&& (T1->isFPOrFPVectorTy() || T2->isFPOrFPVectorTy()))
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return false;
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if ((!Config.VectorizePointers || TD == 0)
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&& ((T1->isPointerTy() ||
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(T1->isVectorTy() && T1->getScalarType()->isPointerTy())) ||
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(T2->isPointerTy() ||
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(T2->isVectorTy() && T2->getScalarType()->isPointerTy()))
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))
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return false;
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if (T1->getPrimitiveSizeInBits() > Config.VectorBits/2 ||
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T2->getPrimitiveSizeInBits() > Config.VectorBits/2)
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return false;
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@ -1898,10 +1921,12 @@ VectorizeConfig::VectorizeConfig() {
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VectorBits = ::VectorBits;
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VectorizeInts = !::NoInts;
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VectorizeFloats = !::NoFloats;
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VectorizePointers = !::NoPointers;
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VectorizeCasts = !::NoCasts;
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VectorizeMath = !::NoMath;
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VectorizeFMA = !::NoFMA;
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VectorizeSelect = !::NoSelect;
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VectorizeGEP = !::NoGEP;
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VectorizeMemOps = !::NoMemOps;
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AlignedOnly = ::AlignedOnly;
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ReqChainDepth= ::ReqChainDepth;
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81
test/Transforms/BBVectorize/simple-ldstr-ptrs.ll
Normal file
81
test/Transforms/BBVectorize/simple-ldstr-ptrs.ll
Normal file
@ -0,0 +1,81 @@
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -instcombine -gvn -S | FileCheck %s
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; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -bb-vectorize-aligned-only -instcombine -gvn -S | FileCheck %s -check-prefix=CHECK-AO
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; Simple 3-pair chain also with loads and stores (using ptrs and gep)
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define double @test1(i64* %a, i64* %b, i64* %c) nounwind uwtable readonly {
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entry:
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%i0 = load i64* %a, align 8
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%i1 = load i64* %b, align 8
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%mul = mul i64 %i0, %i1
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%arrayidx3 = getelementptr inbounds i64* %a, i64 1
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%i3 = load i64* %arrayidx3, align 8
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%arrayidx4 = getelementptr inbounds i64* %b, i64 1
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%i4 = load i64* %arrayidx4, align 8
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%mul5 = mul i64 %i3, %i4
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%ptr = inttoptr i64 %mul to double*
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%ptr5 = inttoptr i64 %mul5 to double*
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%aptr = getelementptr inbounds double* %ptr, i64 2
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%aptr5 = getelementptr inbounds double* %ptr5, i64 3
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%av = load double* %aptr, align 16
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%av5 = load double* %aptr5, align 16
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%r = fmul double %av, %av5
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store i64 %mul, i64* %c, align 8
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%arrayidx5 = getelementptr inbounds i64* %c, i64 1
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store i64 %mul5, i64* %arrayidx5, align 8
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ret double %r
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; CHECK: @test1
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; CHECK: %i0.v.i0 = bitcast i64* %a to <2 x i64>*
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; CHECK: %i1.v.i0 = bitcast i64* %b to <2 x i64>*
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; CHECK: %i0 = load <2 x i64>* %i0.v.i0, align 8
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; CHECK: %i1 = load <2 x i64>* %i1.v.i0, align 8
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; CHECK: %mul = mul <2 x i64> %i0, %i1
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; CHECK: %ptr = inttoptr <2 x i64> %mul to <2 x double*>
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; CHECK: %aptr = getelementptr inbounds <2 x double*> %ptr, <2 x i64> <i64 2, i64 3>
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; CHECK: %aptr.v.r1 = extractelement <2 x double*> %aptr, i32 0
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; CHECK: %aptr.v.r2 = extractelement <2 x double*> %aptr, i32 1
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; CHECK: %av = load double* %aptr.v.r1, align 16
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; CHECK: %av5 = load double* %aptr.v.r2, align 16
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; CHECK: %r = fmul double %av, %av5
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; CHECK: %0 = bitcast i64* %c to <2 x i64>*
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; CHECK: store <2 x i64> %mul, <2 x i64>* %0, align 8
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; CHECK: ret double %r
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; CHECK-AO: @test1
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; CHECK-AO-NOT: load <2 x
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}
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; Simple 3-pair chain with loads and stores (using ptrs and gep)
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define void @test2(i64** %a, i64** %b, i64** %c) nounwind uwtable readonly {
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entry:
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%i0 = load i64** %a, align 8
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%i1 = load i64** %b, align 8
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%arrayidx3 = getelementptr inbounds i64** %a, i64 1
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%i3 = load i64** %arrayidx3, align 8
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%arrayidx4 = getelementptr inbounds i64** %b, i64 1
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%i4 = load i64** %arrayidx4, align 8
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%o1 = load i64* %i1, align 8
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%o4 = load i64* %i4, align 8
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%ptr0 = getelementptr inbounds i64* %i0, i64 %o1
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%ptr3 = getelementptr inbounds i64* %i3, i64 %o4
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store i64* %ptr0, i64** %c, align 8
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%arrayidx5 = getelementptr inbounds i64** %c, i64 1
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store i64* %ptr3, i64** %arrayidx5, align 8
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ret void
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; CHECK: @test2
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; CHECK: %i0.v.i0 = bitcast i64** %a to <2 x i64*>*
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; CHECK: %i1 = load i64** %b, align 8
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; CHECK: %i0 = load <2 x i64*>* %i0.v.i0, align 8
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; CHECK: %arrayidx4 = getelementptr inbounds i64** %b, i64 1
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; CHECK: %i4 = load i64** %arrayidx4, align 8
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; CHECK: %o1 = load i64* %i1, align 8
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; CHECK: %o4 = load i64* %i4, align 8
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; CHECK: %ptr0.v.i1.1 = insertelement <2 x i64> undef, i64 %o1, i32 0
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; CHECK: %ptr0.v.i1.2 = insertelement <2 x i64> %ptr0.v.i1.1, i64 %o4, i32 1
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; CHECK: %ptr0 = getelementptr inbounds <2 x i64*> %i0, <2 x i64> %ptr0.v.i1.2
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; CHECK: %0 = bitcast i64** %c to <2 x i64*>*
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; CHECK: store <2 x i64*> %ptr0, <2 x i64*>* %0, align 8
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; CHECK: ret void
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; CHECK-AO: @test2
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; CHECK-AO-NOT: <2 x
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}
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