[llvm] Delete pointers without null checks (NFC)

[kazutakahirata]

Identified with readability-delete-null-pointer.

[llvmbot]

@llvm/pr-subscribers-vectorizers
@llvm/pr-subscribers-llvm-adt
@llvm/pr-subscribers-backend-hexagon

@llvm/pr-subscribers-llvm-transforms

Author: Kazu Hirata (kazutakahirata)

Changes

Identified with readability-delete-null-pointer.

---

Full diff: https://github.com/llvm/llvm-project/pull/168183.diff

3 Files Affected:

• (modified) llvm/include/llvm/ADT/ConcurrentHashtable.h (+2-4)
• (modified) llvm/lib/Target/Hexagon/HexagonHazardRecognizer.h (+1-4)
• (modified) llvm/lib/Transforms/Vectorize/VPlan.cpp (+1-2)

diff --git a/llvm/include/llvm/ADT/ConcurrentHashtable.h b/llvm/include/llvm/ADT/ConcurrentHashtable.h
index 9ee5f594ea56a..4e27bc48f9d1f 100644
--- a/llvm/include/llvm/ADT/ConcurrentHashtable.h
+++ b/llvm/include/llvm/ADT/ConcurrentHashtable.h
@@ -342,10 +342,8 @@ class ConcurrentHashTableByPtr {
     CurBucket.Size = NewBucketSize;
 
     // Delete old bucket entries.
-    if (SrcHashes != nullptr)
-      delete[] SrcHashes;
-    if (SrcEntries != nullptr)
-      delete[] SrcEntries;
+    delete[] SrcHashes;
+    delete[] SrcEntries;
   }
 
   uint32_t getBucketIdx(hash_code Hash) { return Hash & HashMask; }
diff --git a/llvm/lib/Target/Hexagon/HexagonHazardRecognizer.h b/llvm/lib/Target/Hexagon/HexagonHazardRecognizer.h
index 0528cbd1f15f5..683feb11c1422 100644
--- a/llvm/lib/Target/Hexagon/HexagonHazardRecognizer.h
+++ b/llvm/lib/Target/Hexagon/HexagonHazardRecognizer.h
@@ -50,10 +50,7 @@ class HexagonHazardRecognizer : public ScheduleHazardRecognizer {
                           const HexagonSubtarget &ST)
     : Resources(ST.createDFAPacketizer(II)), TII(HII) { }
 
-  ~HexagonHazardRecognizer() override {
-    if (Resources)
-      delete Resources;
-  }
+  ~HexagonHazardRecognizer() override { delete Resources; }
 
   /// This callback is invoked when a new block of instructions is about to be
   /// scheduled. The hazard state is set to an initialized state.
diff --git a/llvm/lib/Transforms/Vectorize/VPlan.cpp b/llvm/lib/Transforms/Vectorize/VPlan.cpp
index 62dacf912e210..f99f51d5846cf 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlan.cpp
@@ -884,8 +884,7 @@ VPlan::~VPlan() {
   }
   for (VPValue *VPV : getLiveIns())
     delete VPV;
-  if (BackedgeTakenCount)
-    delete BackedgeTakenCount;
+  delete BackedgeTakenCount;
 }
 
 VPIRBasicBlock *VPlan::getExitBlock(BasicBlock *IRBB) const {