Remove unneeded test for nullptr

IntSimdMatrix::GetFastestMultiplier never returns a nullptr.

Signed-off-by: Stefan Weil <[email protected]>

Author: stweil

src/arch/intsimdmatrix.cpp

@@ -29,7 +29,7 @@ namespace tesseract {
 // available type for the current architecture.
 /* static */
 IntSimdMatrix* IntSimdMatrix::GetFastestMultiplier() {
-  IntSimdMatrix* multiplier = nullptr;
+  IntSimdMatrix* multiplier;
   if (SIMDDetect::IsAVX2Available()) {
     multiplier = new IntSimdMatrixAVX2();
   } else if (SIMDDetect::IsSSEAvailable()) {

src/lstm/networkio.cpp

@@ -987,11 +987,7 @@ void NetworkIO::ClipVector(int t, float range) {
 int NetworkIO::GetPadding(int num_features) {
   if (multiplier_ == nullptr)
     multiplier_ = IntSimdMatrix::GetFastestMultiplier();
-  int pad = 0;
-  if (multiplier_ != nullptr) {
-    pad = multiplier_->RoundInputs(num_features) - num_features;
-  }
-  return pad;
+  return multiplier_->RoundInputs(num_features) - num_features;
 }
 
 }  // namespace tesseract.

src/lstm/weightmatrix.cpp

@@ -169,7 +169,7 @@ void WeightMatrix::ConvertToInt() {
   wf_.Resize(1, 1, 0.0);
   int_mode_ = true;
   multiplier_.reset(IntSimdMatrix::GetFastestMultiplier());
-  if (multiplier_ != nullptr) multiplier_->Init(wi_);
+  multiplier_->Init(wi_);
 }
 
 // Allocates any needed memory for running Backward, and zeroes the deltas,
@@ -222,7 +222,7 @@ bool WeightMatrix::DeSerialize(bool training, TFile* fp) {
     if (!wi_.DeSerialize(fp)) return false;
     if (!scales_.DeSerialize(fp)) return false;
     multiplier_.reset(IntSimdMatrix::GetFastestMultiplier());
-    if (multiplier_ != nullptr) multiplier_->Init(wi_);
+    multiplier_->Init(wi_);
   } else {
     if (!wf_.DeSerialize(fp)) return false;
     if (training) {