forked from OSchip/llvm-project
[IVDescriptor] Find original 'Previous' for first-order recurrences.
This patch extends first-order recurrence handling to support cases where we already sunk an instruction for a different recurrence, but LastPrev comes before Previous. To handle those cases correctly, we need to find the earliest entry for the sink-after chain, because this is references the Previous from the original recurrence. This is needed to ensure we use the correct instruction as sink point. Depends on D118558. Reviewed By: Ayal Differential Revision: https://reviews.llvm.org/D118642
This commit is contained in:
Florian Hahn
parent
dd875dd88b
commit
139215af8e
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@ -907,17 +907,34 @@ bool RecurrenceDescriptor::isFirstOrderRecurrence(
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SinkCandidate->mayReadFromMemory() || SinkCandidate->isTerminator())
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return false;
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// Try to sink an instruction after the 'deepest' previous instruction,
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// which has multiple operands for first order recurrences.
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// Avoid sinking an instruction multiple times (if multiple operands are
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// first order recurrences) by sinking once - after the latest 'previous'
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// instruction.
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auto It = SinkAfter.find(SinkCandidate);
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if (It != SinkAfter.end()) {
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auto LastPrev = It->second;
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if (LastPrev->getParent() != Previous->getParent())
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return false;
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auto *OtherPrev = It->second;
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// Find the earliest entry in the 'sink-after' chain. The last entry in
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// the chain is the original 'Previous' for a recurrence handled earlier.
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auto EarlierIt = SinkAfter.find(OtherPrev);
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while (EarlierIt != SinkAfter.end()) {
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Instruction *EarlierInst = EarlierIt->second;
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EarlierIt = SinkAfter.find(EarlierInst);
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assert((EarlierIt == SinkAfter.end() ||
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EarlierInst->comesBefore(OtherPrev)) &&
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"earlier instructions in the chain must come before later ones, "
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"except for the first one");
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OtherPrev = EarlierInst;
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}
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assert((OtherPrev == It->second || It->second->comesBefore(OtherPrev)) &&
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"found OtherPrev must either match the original one or come after "
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"it");
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// If LastPrev comes after the current Previous, SinkCandidate already
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// gets sunk past Previous and nothing left to do.
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return Previous->comesBefore(LastPrev);
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// SinkCandidate is already being sunk after an instruction after
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// Previous. Nothing left to do.
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if (Previous->comesBefore(OtherPrev) || Previous == OtherPrev)
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return true;
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// Otherwise, Previous comes after OtherPrev and SinkCandidate needs to be
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// re-sunk to Previous, instead of sinking to OtherPrev.
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}
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// If we reach a PHI node that is not dominated by Previous, we reached a
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@ -451,25 +451,70 @@ bb74: ; preds = %bb13
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define void @instruction_with_2_FOR_operands_and_multiple_other_uses(float* noalias %dst.1, float* noalias %dst.2, float* noalias %dst.3, float* noalias %for.ptr.1, float* noalias %for.ptr.2) {
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; CHECK-LABEL: @instruction_with_2_FOR_operands_and_multiple_other_uses(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[VECTOR_RECUR:%.*]] = phi <4 x float> [ <float poison, float poison, float poison, float 0.000000e+00>, [[VECTOR_PH]] ], [ [[BROADCAST_SPLAT3:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[VECTOR_RECUR1:%.*]] = phi <4 x float> [ <float poison, float poison, float poison, float 0.000000e+00>, [[VECTOR_PH]] ], [ [[BROADCAST_SPLAT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
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; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[FOR_PTR_2:%.*]], align 4
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[TMP1]], i32 0
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; CHECK-NEXT: [[BROADCAST_SPLAT]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <4 x float> [[VECTOR_RECUR1]], <4 x float> [[BROADCAST_SPLAT]], <4 x i32> <i32 3, i32 4, i32 5, i32 6>
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; CHECK-NEXT: [[TMP3:%.*]] = load float, float* [[FOR_PTR_1:%.*]], align 4
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x float> poison, float [[TMP3]], i32 0
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; CHECK-NEXT: [[BROADCAST_SPLAT3]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT2]], <4 x float> poison, <4 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP4:%.*]] = shufflevector <4 x float> [[VECTOR_RECUR]], <4 x float> [[BROADCAST_SPLAT3]], <4 x i32> <i32 3, i32 4, i32 5, i32 6>
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; CHECK-NEXT: [[TMP5:%.*]] = fmul fast <4 x float> [[TMP4]], <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00, float 2.000000e+00>
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; CHECK-NEXT: [[TMP6:%.*]] = fmul fast <4 x float> [[TMP4]], [[TMP2]]
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; CHECK-NEXT: [[TMP7:%.*]] = fadd fast <4 x float> [[TMP4]], <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>
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; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds float, float* [[DST_1:%.*]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds float, float* [[TMP8]], i32 0
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; CHECK-NEXT: [[TMP10:%.*]] = bitcast float* [[TMP9]] to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[TMP6]], <4 x float>* [[TMP10]], align 4
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; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds float, float* [[DST_2:%.*]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds float, float* [[TMP11]], i32 0
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; CHECK-NEXT: [[TMP13:%.*]] = bitcast float* [[TMP12]] to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[TMP5]], <4 x float>* [[TMP13]], align 4
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; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds float, float* [[DST_3:%.*]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP15:%.*]] = getelementptr inbounds float, float* [[TMP14]], i32 0
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; CHECK-NEXT: [[TMP16:%.*]] = bitcast float* [[TMP15]] to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[TMP7]], <4 x float>* [[TMP16]], align 4
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
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; CHECK-NEXT: [[TMP17:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1000
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; CHECK-NEXT: br i1 [[TMP17]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1001, 1000
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; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT3]], i32 3
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; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT_FOR_PHI:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT3]], i32 2
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; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT4:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT]], i32 3
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; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT_FOR_PHI5:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT]], i32 2
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; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: [[SCALAR_RECUR_INIT6:%.*]] = phi float [ 0.000000e+00, [[BB:%.*]] ], [ [[VECTOR_RECUR_EXTRACT4]], [[MIDDLE_BLOCK]] ]
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; CHECK-NEXT: [[SCALAR_RECUR_INIT:%.*]] = phi float [ 0.000000e+00, [[BB]] ], [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ]
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; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1000, [[MIDDLE_BLOCK]] ], [ 0, [[BB]] ]
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[FOR_1:%.*]] = phi float [ 0.000000e+00, [[BB:%.*]] ], [ [[FOR_1_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[FOR_2:%.*]] = phi float [ 0.000000e+00, [[BB]] ], [ [[FOR_2_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[IV:%.*]] = phi i64 [ 0, [[BB]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[FOR_1_USE_1:%.*]] = fmul fast float [[FOR_1]], 2.000000e+00
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; CHECK-NEXT: [[USED_BY_BOTH:%.*]] = fmul fast float [[FOR_1]], [[FOR_2]]
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; CHECK-NEXT: [[FOR_2_NEXT]] = load float, float* [[FOR_PTR_2:%.*]], align 4
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; CHECK-NEXT: [[FOR_1_USE_3:%.*]] = fadd fast float [[FOR_1]], 1.000000e+00
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; CHECK-NEXT: [[SCALAR_RECUR:%.*]] = phi float [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[FOR_1_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[SCALAR_RECUR7:%.*]] = phi float [ [[SCALAR_RECUR_INIT6]], [[SCALAR_PH]] ], [ [[FOR_2_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[FOR_1_USE_1:%.*]] = fmul fast float [[SCALAR_RECUR]], 2.000000e+00
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; CHECK-NEXT: [[USED_BY_BOTH:%.*]] = fmul fast float [[SCALAR_RECUR]], [[SCALAR_RECUR7]]
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; CHECK-NEXT: [[FOR_2_NEXT]] = load float, float* [[FOR_PTR_2]], align 4
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; CHECK-NEXT: [[FOR_1_USE_3:%.*]] = fadd fast float [[SCALAR_RECUR]], 1.000000e+00
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; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
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; CHECK-NEXT: [[FOR_1_NEXT]] = load float, float* [[FOR_PTR_1:%.*]], align 4
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; CHECK-NEXT: [[GEP_DST_1:%.*]] = getelementptr inbounds float, float* [[DST_1:%.*]], i64 [[IV]]
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; CHECK-NEXT: [[FOR_1_NEXT]] = load float, float* [[FOR_PTR_1]], align 4
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; CHECK-NEXT: [[GEP_DST_1:%.*]] = getelementptr inbounds float, float* [[DST_1]], i64 [[IV]]
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; CHECK-NEXT: store float [[USED_BY_BOTH]], float* [[GEP_DST_1]], align 4
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; CHECK-NEXT: [[GEP_DST_2:%.*]] = getelementptr inbounds float, float* [[DST_2:%.*]], i64 [[IV]]
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; CHECK-NEXT: [[GEP_DST_2:%.*]] = getelementptr inbounds float, float* [[DST_2]], i64 [[IV]]
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; CHECK-NEXT: store float [[FOR_1_USE_1]], float* [[GEP_DST_2]], align 4
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; CHECK-NEXT: [[GEP_DST_3:%.*]] = getelementptr inbounds float, float* [[DST_3:%.*]], i64 [[IV]]
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; CHECK-NEXT: [[GEP_DST_3:%.*]] = getelementptr inbounds float, float* [[DST_3]], i64 [[IV]]
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; CHECK-NEXT: store float [[FOR_1_USE_3]], float* [[GEP_DST_3]], align 4
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; CHECK-NEXT: [[EC:%.*]] = icmp slt i64 [[IV]], 1000
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; CHECK-NEXT: br i1 [[EC]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK-NEXT: br i1 [[EC]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP11:![0-9]+]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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@ -504,26 +549,72 @@ exit:
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define void @instruction_with_2_FOR_operands_and_multiple_other_uses_chain(float* noalias %dst.1, float* noalias %dst.2, float* noalias %dst.3, float* noalias %for.ptr.1, float* noalias %for.ptr.2) {
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; CHECK-LABEL: @instruction_with_2_FOR_operands_and_multiple_other_uses_chain(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[VECTOR_RECUR:%.*]] = phi <4 x float> [ <float poison, float poison, float poison, float 0.000000e+00>, [[VECTOR_PH]] ], [ [[BROADCAST_SPLAT3:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[VECTOR_RECUR1:%.*]] = phi <4 x float> [ <float poison, float poison, float poison, float 0.000000e+00>, [[VECTOR_PH]] ], [ [[BROADCAST_SPLAT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
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; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[FOR_PTR_2:%.*]], align 4
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[TMP1]], i32 0
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; CHECK-NEXT: [[BROADCAST_SPLAT]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <4 x float> [[VECTOR_RECUR1]], <4 x float> [[BROADCAST_SPLAT]], <4 x i32> <i32 3, i32 4, i32 5, i32 6>
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; CHECK-NEXT: [[TMP3:%.*]] = load float, float* [[FOR_PTR_1:%.*]], align 4
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x float> poison, float [[TMP3]], i32 0
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; CHECK-NEXT: [[BROADCAST_SPLAT3]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT2]], <4 x float> poison, <4 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP4:%.*]] = shufflevector <4 x float> [[VECTOR_RECUR]], <4 x float> [[BROADCAST_SPLAT3]], <4 x i32> <i32 3, i32 4, i32 5, i32 6>
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; CHECK-NEXT: [[TMP5:%.*]] = fmul fast <4 x float> [[TMP4]], <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00, float 2.000000e+00>
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; CHECK-NEXT: [[TMP6:%.*]] = fmul fast <4 x float> [[TMP5]], <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00, float 2.000000e+00>
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; CHECK-NEXT: [[TMP7:%.*]] = fmul fast <4 x float> [[TMP6]], [[TMP2]]
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; CHECK-NEXT: [[TMP8:%.*]] = fadd fast <4 x float> [[TMP4]], <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>
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; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds float, float* [[DST_1:%.*]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds float, float* [[TMP9]], i32 0
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; CHECK-NEXT: [[TMP11:%.*]] = bitcast float* [[TMP10]] to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[TMP7]], <4 x float>* [[TMP11]], align 4
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; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds float, float* [[DST_2:%.*]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds float, float* [[TMP12]], i32 0
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; CHECK-NEXT: [[TMP14:%.*]] = bitcast float* [[TMP13]] to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[TMP5]], <4 x float>* [[TMP14]], align 4
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; CHECK-NEXT: [[TMP15:%.*]] = getelementptr inbounds float, float* [[DST_3:%.*]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP16:%.*]] = getelementptr inbounds float, float* [[TMP15]], i32 0
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; CHECK-NEXT: [[TMP17:%.*]] = bitcast float* [[TMP16]] to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[TMP8]], <4 x float>* [[TMP17]], align 4
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
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; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1000
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; CHECK-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1001, 1000
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; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT3]], i32 3
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; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT_FOR_PHI:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT3]], i32 2
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; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT4:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT]], i32 3
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; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT_FOR_PHI5:%.*]] = extractelement <4 x float> [[BROADCAST_SPLAT]], i32 2
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; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: [[SCALAR_RECUR_INIT6:%.*]] = phi float [ 0.000000e+00, [[BB:%.*]] ], [ [[VECTOR_RECUR_EXTRACT4]], [[MIDDLE_BLOCK]] ]
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; CHECK-NEXT: [[SCALAR_RECUR_INIT:%.*]] = phi float [ 0.000000e+00, [[BB]] ], [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ]
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; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1000, [[MIDDLE_BLOCK]] ], [ 0, [[BB]] ]
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[FOR_1:%.*]] = phi float [ 0.000000e+00, [[BB:%.*]] ], [ [[FOR_1_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[FOR_2:%.*]] = phi float [ 0.000000e+00, [[BB]] ], [ [[FOR_2_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[IV:%.*]] = phi i64 [ 0, [[BB]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[FOR_1_USE_1:%.*]] = fmul fast float [[FOR_1]], 2.000000e+00
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; CHECK-NEXT: [[SCALAR_RECUR:%.*]] = phi float [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[FOR_1_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[SCALAR_RECUR7:%.*]] = phi float [ [[SCALAR_RECUR_INIT6]], [[SCALAR_PH]] ], [ [[FOR_2_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[FOR_1_USE_1:%.*]] = fmul fast float [[SCALAR_RECUR]], 2.000000e+00
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; CHECK-NEXT: [[FOR_1_USE_C:%.*]] = fmul fast float [[FOR_1_USE_1]], 2.000000e+00
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; CHECK-NEXT: [[USED_BY_BOTH:%.*]] = fmul fast float [[FOR_1_USE_C]], [[FOR_2]]
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; CHECK-NEXT: [[FOR_2_NEXT]] = load float, float* [[FOR_PTR_2:%.*]], align 4
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; CHECK-NEXT: [[FOR_1_USE_3:%.*]] = fadd fast float [[FOR_1]], 1.000000e+00
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; CHECK-NEXT: [[USED_BY_BOTH:%.*]] = fmul fast float [[FOR_1_USE_C]], [[SCALAR_RECUR7]]
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; CHECK-NEXT: [[FOR_2_NEXT]] = load float, float* [[FOR_PTR_2]], align 4
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; CHECK-NEXT: [[FOR_1_USE_3:%.*]] = fadd fast float [[SCALAR_RECUR]], 1.000000e+00
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; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
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; CHECK-NEXT: [[FOR_1_NEXT]] = load float, float* [[FOR_PTR_1:%.*]], align 4
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; CHECK-NEXT: [[GEP_DST_1:%.*]] = getelementptr inbounds float, float* [[DST_1:%.*]], i64 [[IV]]
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; CHECK-NEXT: [[FOR_1_NEXT]] = load float, float* [[FOR_PTR_1]], align 4
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; CHECK-NEXT: [[GEP_DST_1:%.*]] = getelementptr inbounds float, float* [[DST_1]], i64 [[IV]]
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; CHECK-NEXT: store float [[USED_BY_BOTH]], float* [[GEP_DST_1]], align 4
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; CHECK-NEXT: [[GEP_DST_2:%.*]] = getelementptr inbounds float, float* [[DST_2:%.*]], i64 [[IV]]
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; CHECK-NEXT: [[GEP_DST_2:%.*]] = getelementptr inbounds float, float* [[DST_2]], i64 [[IV]]
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; CHECK-NEXT: store float [[FOR_1_USE_1]], float* [[GEP_DST_2]], align 4
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; CHECK-NEXT: [[GEP_DST_3:%.*]] = getelementptr inbounds float, float* [[DST_3:%.*]], i64 [[IV]]
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; CHECK-NEXT: [[GEP_DST_3:%.*]] = getelementptr inbounds float, float* [[DST_3]], i64 [[IV]]
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; CHECK-NEXT: store float [[FOR_1_USE_3]], float* [[GEP_DST_3]], align 4
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; CHECK-NEXT: [[EC:%.*]] = icmp slt i64 [[IV]], 1000
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; CHECK-NEXT: br i1 [[EC]], label [[LOOP]], label [[EXIT:%.*]]
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||||
; CHECK-NEXT: br i1 [[EC]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP13:![0-9]+]]
|
||||
; CHECK: exit:
|
||||
; CHECK-NEXT: ret void
|
||||
;
|
||||
|
|
@ -993,8 +1084,56 @@ exit:
|
|||
}
|
||||
|
||||
define void @test_for_sink_instruction_after_same_incoming_1(double* %ptr) {
|
||||
; CHECK-LABEL: @test_for_sink_instruction_after_same_incoming_1
|
||||
; CHECK-NOT: vector.body:
|
||||
; CHECK-LABEL: @test_for_sink_instruction_after_same_incoming_1(
|
||||
; CHECK-NEXT: entry:
|
||||
; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
|
||||
; CHECK: vector.ph:
|
||||
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
|
||||
; CHECK: vector.body:
|
||||
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
|
||||
; CHECK-NEXT: [[VECTOR_RECUR:%.*]] = phi <4 x double> [ <double poison, double poison, double poison, double 1.000000e+01>, [[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], [[VECTOR_BODY]] ]
|
||||
; CHECK-NEXT: [[VECTOR_RECUR1:%.*]] = phi <4 x double> [ <double poison, double poison, double poison, double 2.000000e+01>, [[VECTOR_PH]] ], [ [[WIDE_LOAD]], [[VECTOR_BODY]] ]
|
||||
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = add i64 1, [[INDEX]]
|
||||
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[OFFSET_IDX]], 0
|
||||
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds double, double* [[PTR:%.*]], i64 [[TMP0]]
|
||||
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds double, double* [[TMP1]], i32 0
|
||||
; CHECK-NEXT: [[TMP3:%.*]] = bitcast double* [[TMP2]] to <4 x double>*
|
||||
; CHECK-NEXT: [[WIDE_LOAD]] = load <4 x double>, <4 x double>* [[TMP3]], align 8
|
||||
; CHECK-NEXT: [[TMP4:%.*]] = shufflevector <4 x double> [[VECTOR_RECUR1]], <4 x double> [[WIDE_LOAD]], <4 x i32> <i32 3, i32 4, i32 5, i32 6>
|
||||
; CHECK-NEXT: [[TMP5:%.*]] = shufflevector <4 x double> [[VECTOR_RECUR]], <4 x double> [[WIDE_LOAD]], <4 x i32> <i32 3, i32 4, i32 5, i32 6>
|
||||
; CHECK-NEXT: [[TMP6:%.*]] = fadd <4 x double> <double 1.000000e+01, double 1.000000e+01, double 1.000000e+01, double 1.000000e+01>, [[TMP4]]
|
||||
; CHECK-NEXT: [[TMP7:%.*]] = fadd <4 x double> [[TMP6]], [[TMP5]]
|
||||
; CHECK-NEXT: [[TMP8:%.*]] = bitcast double* [[TMP2]] to <4 x double>*
|
||||
; CHECK-NEXT: store <4 x double> [[TMP7]], <4 x double>* [[TMP8]], align 8
|
||||
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
|
||||
; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 996
|
||||
; CHECK-NEXT: br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
|
||||
; CHECK: middle.block:
|
||||
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 999, 996
|
||||
; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <4 x double> [[WIDE_LOAD]], i32 3
|
||||
; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT_FOR_PHI:%.*]] = extractelement <4 x double> [[WIDE_LOAD]], i32 2
|
||||
; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT2:%.*]] = extractelement <4 x double> [[WIDE_LOAD]], i32 3
|
||||
; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT_FOR_PHI3:%.*]] = extractelement <4 x double> [[WIDE_LOAD]], i32 2
|
||||
; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
|
||||
; CHECK: scalar.ph:
|
||||
; CHECK-NEXT: [[SCALAR_RECUR_INIT4:%.*]] = phi double [ 2.000000e+01, [[ENTRY:%.*]] ], [ [[VECTOR_RECUR_EXTRACT2]], [[MIDDLE_BLOCK]] ]
|
||||
; CHECK-NEXT: [[SCALAR_RECUR_INIT:%.*]] = phi double [ 1.000000e+01, [[ENTRY]] ], [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ]
|
||||
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 997, [[MIDDLE_BLOCK]] ], [ 1, [[ENTRY]] ]
|
||||
; CHECK-NEXT: br label [[LOOP:%.*]]
|
||||
; CHECK: loop:
|
||||
; CHECK-NEXT: [[SCALAR_RECUR:%.*]] = phi double [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[FOR_1_NEXT:%.*]], [[LOOP]] ]
|
||||
; CHECK-NEXT: [[SCALAR_RECUR5:%.*]] = phi double [ [[SCALAR_RECUR_INIT4]], [[SCALAR_PH]] ], [ [[FOR_1_NEXT]], [[LOOP]] ]
|
||||
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
|
||||
; CHECK-NEXT: [[ADD_1:%.*]] = fadd double 1.000000e+01, [[SCALAR_RECUR5]]
|
||||
; CHECK-NEXT: [[ADD_2:%.*]] = fadd double [[ADD_1]], [[SCALAR_RECUR]]
|
||||
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
|
||||
; CHECK-NEXT: [[GEP_PTR:%.*]] = getelementptr inbounds double, double* [[PTR]], i64 [[IV]]
|
||||
; CHECK-NEXT: [[FOR_1_NEXT]] = load double, double* [[GEP_PTR]], align 8
|
||||
; CHECK-NEXT: store double [[ADD_2]], double* [[GEP_PTR]], align 8
|
||||
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1000
|
||||
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP23:![0-9]+]]
|
||||
; CHECK: exit:
|
||||
; CHECK-NEXT: ret void
|
||||
;
|
||||
entry:
|
||||
br label %loop
|
||||
|
|
@ -1018,8 +1157,57 @@ exit:
|
|||
|
||||
|
||||
define void @test_for_sink_instruction_after_same_incoming_2(double* %ptr) {
|
||||
; CHECK-LABEL: @test_for_sink_instruction_after_same_incoming_2
|
||||
; CHECK-NOT: vector.body:
|
||||
; CHECK-LABEL: @test_for_sink_instruction_after_same_incoming_2(
|
||||
; CHECK-NEXT: entry:
|
||||
; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
|
||||
; CHECK: vector.ph:
|
||||
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
|
||||
; CHECK: vector.body:
|
||||
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
|
||||
; CHECK-NEXT: [[VECTOR_RECUR:%.*]] = phi <4 x double> [ <double poison, double poison, double poison, double 2.000000e+01>, [[VECTOR_PH]] ], [ [[WIDE_LOAD:%.*]], [[VECTOR_BODY]] ]
|
||||
; CHECK-NEXT: [[VECTOR_RECUR1:%.*]] = phi <4 x double> [ <double poison, double poison, double poison, double 1.000000e+01>, [[VECTOR_PH]] ], [ [[WIDE_LOAD]], [[VECTOR_BODY]] ]
|
||||
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = add i64 1, [[INDEX]]
|
||||
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[OFFSET_IDX]], 0
|
||||
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds double, double* [[PTR:%.*]], i64 [[TMP0]]
|
||||
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds double, double* [[TMP1]], i32 0
|
||||
; CHECK-NEXT: [[TMP3:%.*]] = bitcast double* [[TMP2]] to <4 x double>*
|
||||
; CHECK-NEXT: [[WIDE_LOAD]] = load <4 x double>, <4 x double>* [[TMP3]], align 8
|
||||
; CHECK-NEXT: [[TMP4:%.*]] = shufflevector <4 x double> [[VECTOR_RECUR1]], <4 x double> [[WIDE_LOAD]], <4 x i32> <i32 3, i32 4, i32 5, i32 6>
|
||||
; CHECK-NEXT: [[TMP5:%.*]] = shufflevector <4 x double> [[VECTOR_RECUR]], <4 x double> [[WIDE_LOAD]], <4 x i32> <i32 3, i32 4, i32 5, i32 6>
|
||||
; CHECK-NEXT: [[TMP6:%.*]] = fadd <4 x double> <double 1.000000e+01, double 1.000000e+01, double 1.000000e+01, double 1.000000e+01>, [[TMP5]]
|
||||
; CHECK-NEXT: [[TMP7:%.*]] = fadd <4 x double> [[TMP6]], [[TMP4]]
|
||||
; CHECK-NEXT: [[TMP8:%.*]] = bitcast double* [[TMP2]] to <4 x double>*
|
||||
; CHECK-NEXT: store <4 x double> [[TMP7]], <4 x double>* [[TMP8]], align 8
|
||||
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
|
||||
; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 996
|
||||
; CHECK-NEXT: br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
|
||||
; CHECK: middle.block:
|
||||
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 999, 996
|
||||
; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT:%.*]] = extractelement <4 x double> [[WIDE_LOAD]], i32 3
|
||||
; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT_FOR_PHI:%.*]] = extractelement <4 x double> [[WIDE_LOAD]], i32 2
|
||||
; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT2:%.*]] = extractelement <4 x double> [[WIDE_LOAD]], i32 3
|
||||
; CHECK-NEXT: [[VECTOR_RECUR_EXTRACT_FOR_PHI3:%.*]] = extractelement <4 x double> [[WIDE_LOAD]], i32 2
|
||||
; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
|
||||
; CHECK: scalar.ph:
|
||||
; CHECK-NEXT: [[SCALAR_RECUR_INIT4:%.*]] = phi double [ 1.000000e+01, [[ENTRY:%.*]] ], [ [[VECTOR_RECUR_EXTRACT2]], [[MIDDLE_BLOCK]] ]
|
||||
; CHECK-NEXT: [[SCALAR_RECUR_INIT:%.*]] = phi double [ 2.000000e+01, [[ENTRY]] ], [ [[VECTOR_RECUR_EXTRACT]], [[MIDDLE_BLOCK]] ]
|
||||
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 997, [[MIDDLE_BLOCK]] ], [ 1, [[ENTRY]] ]
|
||||
; CHECK-NEXT: br label [[LOOP:%.*]]
|
||||
; CHECK: loop:
|
||||
; CHECK-NEXT: [[SCALAR_RECUR:%.*]] = phi double [ [[SCALAR_RECUR_INIT]], [[SCALAR_PH]] ], [ [[FOR_1_NEXT:%.*]], [[LOOP]] ]
|
||||
; CHECK-NEXT: [[SCALAR_RECUR5:%.*]] = phi double [ [[SCALAR_RECUR_INIT4]], [[SCALAR_PH]] ], [ [[FOR_1_NEXT]], [[LOOP]] ]
|
||||
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
|
||||
; CHECK-NEXT: [[ADD_1:%.*]] = fadd double 1.000000e+01, [[SCALAR_RECUR]]
|
||||
; CHECK-NEXT: [[ADD_2:%.*]] = fadd double [[ADD_1]], [[SCALAR_RECUR5]]
|
||||
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
|
||||
; CHECK-NEXT: [[GEP_PTR:%.*]] = getelementptr inbounds double, double* [[PTR]], i64 [[IV]]
|
||||
; CHECK-NEXT: [[FOR_1_NEXT]] = load double, double* [[GEP_PTR]], align 8
|
||||
; CHECK-NEXT: store double [[ADD_2]], double* [[GEP_PTR]], align 8
|
||||
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1000
|
||||
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP25:![0-9]+]]
|
||||
; CHECK: exit:
|
||||
; CHECK-NEXT: ret void
|
||||
;
|
||||
entry:
|
||||
br label %loop
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue