[all-commits] [llvm/llvm-project] 86d65a: [analyzer] Improve FieldRegion descriptive name (#...

[T-Gruber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 86d65ae7949e0322f10e1856c5c33caa34ebfe2f
      https://github.com/llvm/llvm-project/commit/86d65ae7949e0322f10e1856c5c33caa34ebfe2f
  Author: T-Gruber <100079402+T-Gruber at users.noreply.github.com>
  Date:   2024-10-25 (Fri, 25 Oct 2024)

  Changed paths:
    M clang/lib/StaticAnalyzer/Core/MemRegion.cpp
    M clang/unittests/StaticAnalyzer/MemRegionDescriptiveNameTest.cpp

  Log Message:
  -----------
  [analyzer] Improve FieldRegion descriptive name (#112313)

The current implementation of MemRegion::getDescriptiveName fails for
FieldRegions whose SuperRegion is an ElementRegion. As outlined below:
```Cpp
struct val_struct { int val; };
extern struct val_struct val_struct_array[3];

void func(){
  // FieldRegion with ElementRegion as SuperRegion.
  val_struct_array[0].val;
}
```

For this special case, the expression cannot be pretty printed and must
therefore be obtained separately.



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