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Revert r295868 because it breaks a different SLP lit test. 

llvm-svn: 295906
This commit is contained in:
Michael Kuperstein 2017-02-22 23:35:13 +00:00
parent d5c6515b68
commit 6181c62b95
2 changed files with 17 additions and 24 deletions
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31
llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
View File

@ -304,7 +304,6 @@ public:
typedef SmallVector<Instruction *, 16> InstrList;
typedef SmallPtrSet<Value *, 16> ValueSet;
typedef SmallVector<StoreInst *, 8> StoreList;
typedef MapVector<Value *, std::vector<DebugLoc>> ExtraValueToDebugLocsMap;
BoUpSLP(Function *Func, ScalarEvolution *Se, TargetTransformInfo *Tti,
TargetLibraryInfo *TLi, AliasAnalysis *Aa, LoopInfo *Li,
@ -334,7 +333,7 @@ public:
/// Vectorize the tree but with the list of externally used values \p
/// ExternallyUsedValues. Values in this MapVector can be replaced but the
/// generated extractvalue instructions.
Value *vectorizeTree(ExtraValueToDebugLocsMap &ExternallyUsedValues);
Value *vectorizeTree(MapVector<Value *, DebugLoc> &ExternallyUsedValues);
/// \returns the cost incurred by unwanted spills and fills, caused by
/// holding live values over call sites.
@ -353,7 +352,7 @@ public:
/// into account (anf updating it, if required) list of externally used
/// values stored in \p ExternallyUsedValues.
void buildTree(ArrayRef<Value *> Roots,
ExtraValueToDebugLocsMap &ExternallyUsedValues,
MapVector<Value *, DebugLoc> &ExternallyUsedValues,
ArrayRef<Value *> UserIgnoreLst = None);
/// Clear the internal data structures that are created by 'buildTree'.
@ -954,11 +953,11 @@ private:
void BoUpSLP::buildTree(ArrayRef<Value *> Roots,
ArrayRef<Value *> UserIgnoreLst) {
ExtraValueToDebugLocsMap ExternallyUsedValues;
MapVector<Value *, DebugLoc> ExternallyUsedValues;
buildTree(Roots, ExternallyUsedValues, UserIgnoreLst);
}
void BoUpSLP::buildTree(ArrayRef<Value *> Roots,
ExtraValueToDebugLocsMap &ExternallyUsedValues,
MapVector<Value *, DebugLoc> &ExternallyUsedValues,
ArrayRef<Value *> UserIgnoreLst) {
deleteTree();
UserIgnoreList = UserIgnoreLst;
@ -2802,12 +2801,12 @@ Value *BoUpSLP::vectorizeTree(ArrayRef<Value *> VL, TreeEntry *E) {
}
Value *BoUpSLP::vectorizeTree() {
ExtraValueToDebugLocsMap ExternallyUsedValues;
MapVector<Value *, DebugLoc> ExternallyUsedValues;
return vectorizeTree(ExternallyUsedValues);
}
Value *
BoUpSLP::vectorizeTree(ExtraValueToDebugLocsMap &ExternallyUsedValues) {
BoUpSLP::vectorizeTree(MapVector<Value *, DebugLoc> &ExternallyUsedValues) {
// All blocks must be scheduled before any instructions are inserted.
for (auto &BSIter : BlocksSchedules) {
@ -2869,6 +2868,7 @@ BoUpSLP::vectorizeTree(ExtraValueToDebugLocsMap &ExternallyUsedValues) {
assert(ExternallyUsedValues.count(Scalar) &&
"Scalar with nullptr as an external user must be registered in "
"ExternallyUsedValues map");
DebugLoc DL = ExternallyUsedValues[Scalar];
if (auto *VecI = dyn_cast<Instruction>(Vec)) {
Builder.SetInsertPoint(VecI->getParent(),
std::next(VecI->getIterator()));
@ -2878,8 +2878,8 @@ BoUpSLP::vectorizeTree(ExtraValueToDebugLocsMap &ExternallyUsedValues) {
Value *Ex = Builder.CreateExtractElement(Vec, Lane);
Ex = extend(ScalarRoot, Ex, Scalar->getType());
CSEBlocks.insert(cast<Instruction>(Scalar)->getParent());
ExternallyUsedValues[Ex] = ExternallyUsedValues[Scalar];
ExternallyUsedValues.erase(Scalar);
ExternallyUsedValues[Ex] = DL;
continue;
}
@ -4439,11 +4439,9 @@ public:
Builder.setFastMathFlags(Unsafe);
unsigned i = 0;
BoUpSLP::ExtraValueToDebugLocsMap ExternallyUsedValues;
// The same extra argument may be used several time, so log each attempt
// to use it.
MapVector<Value *, DebugLoc> ExternallyUsedValues;
for (auto &Pair : ExtraArgs)
ExternallyUsedValues[Pair.second].push_back(Pair.first->getDebugLoc());
ExternallyUsedValues[Pair.second] = Pair.first->getDebugLoc();
while (i < NumReducedVals - ReduxWidth + 1 && ReduxWidth > 2) {
auto VL = makeArrayRef(&ReducedVals[i], ReduxWidth);
V.buildTree(VL, ExternallyUsedValues, ReductionOps);
@ -4491,12 +4489,9 @@ public:
Builder.CreateBinOp(ReductionOpcode, VectorizedTree, I);
}
for (auto &Pair : ExternallyUsedValues) {
// Add each externally used value to the final reduction.
for (auto &DL : Pair.second) {
Builder.SetCurrentDebugLocation(DL);
VectorizedTree = Builder.CreateBinOp(ReductionOpcode, VectorizedTree,
Pair.first, "bin.extra");
}
Builder.SetCurrentDebugLocation(Pair.second);
VectorizedTree = Builder.CreateBinOp(ReductionOpcode, VectorizedTree,
Pair.first, "bin.extra");
}
// Update users.
if (ReductionPHI && !isa<UndefValue>(ReductionPHI)) {

10
llvm/test/Transforms/SLPVectorizer/X86/horizontal-list.ll
View File

@ -1473,10 +1473,9 @@ define float @extra_args_same_several_times(float* nocapture readonly %x, i32 %a
; CHECK-NEXT: [[TMP2:%.*]] = extractelement <8 x float> [[BIN_RDX4]], i32 0
; CHECK-NEXT: [[BIN_EXTRA:%.*]] = fadd fast float [[TMP2]], [[ADD]]
; CHECK-NEXT: [[BIN_EXTRA5:%.*]] = fadd fast float [[BIN_EXTRA]], 5.000000e+00
; CHECK-NEXT: [[BIN_EXTRA6:%.*]] = fadd fast float [[BIN_EXTRA5]], 5.000000e+00
; CHECK-NEXT: [[BIN_EXTRA7:%.*]] = fadd fast float [[BIN_EXTRA6]], [[CONV]]
; CHECK-NEXT: [[BIN_EXTRA6:%.*]] = fadd fast float [[BIN_EXTRA5]], [[CONV]]
; CHECK-NEXT: [[ADD4_6:%.*]] = fadd fast float undef, [[ADD4_5]]
; CHECK-NEXT: ret float [[BIN_EXTRA7]]
; CHECK-NEXT: ret float [[BIN_EXTRA6]]
;
; THRESHOLD-LABEL: @extra_args_same_several_times(
; THRESHOLD-NEXT: entry:
@ -1511,10 +1510,9 @@ define float @extra_args_same_several_times(float* nocapture readonly %x, i32 %a
; THRESHOLD-NEXT: [[TMP2:%.*]] = extractelement <8 x float> [[BIN_RDX4]], i32 0
; THRESHOLD-NEXT: [[BIN_EXTRA:%.*]] = fadd fast float [[TMP2]], [[ADD]]
; THRESHOLD-NEXT: [[BIN_EXTRA5:%.*]] = fadd fast float [[BIN_EXTRA]], 5.000000e+00
; THRESHOLD-NEXT: [[BIN_EXTRA6:%.*]] = fadd fast float [[BIN_EXTRA5]], 5.000000e+00
; THRESHOLD-NEXT: [[BIN_EXTRA7:%.*]] = fadd fast float [[BIN_EXTRA6]], [[CONV]]
; THRESHOLD-NEXT: [[BIN_EXTRA6:%.*]] = fadd fast float [[BIN_EXTRA5]], [[CONV]]
; THRESHOLD-NEXT: [[ADD4_6:%.*]] = fadd fast float undef, [[ADD4_5]]
; THRESHOLD-NEXT: ret float [[BIN_EXTRA7]]
; THRESHOLD-NEXT: ret float [[BIN_EXTRA6]]
;
entry:
%mul = mul nsw i32 %b, %a