[llvm] [LAA] Prepare to handle diff type sizes (NFC) (PR #122318)

[Michael Kruse via llvm-commits]

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@@ -2186,13 +2202,8 @@ MemoryDepChecker::isDependent(const MemAccessInfo &A, unsigned AIdx,
   // Negative distances are not plausible dependencies.
   if (SE.isKnownNonPositive(Dist)) {
     if (SE.isKnownNonNegative(Dist)) {
-      if (HasSameSize) {
-        // Write to the same location with the same size.
-        return Dependence::Forward;
-      }
-      LLVM_DEBUG(dbgs() << "LAA: possibly zero dependence difference but "
-                           "different type sizes\n");
-      return Dependence::Unknown;
+      // Write to the same location with the same size.
+      return Dependence::Forward;
----------------
Meinersbur wrote:

The [coding standard](https://llvm.org/docs/CodingStandards.html#don-t-use-braces-on-simple-single-statement-bodies-of-if-else-loop-statements) should settle it:
<img width="586" height="153" alt="image" src="https://github.com/user-attachments/assets/e2fc3684-7208-4233-9147-42963f65faf8" />


https://github.com/llvm/llvm-project/pull/122318