[PATCH] D132098: [clang][Interp] Implement inv and neg unary operations

Aaron Ballman via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu Aug 18 12:38:48 PDT 2022


aaron.ballman added a comment.

I'd appreciate if we handled unary `~` and `+` soon after this



================
Comment at: clang/lib/AST/Interp/ByteCodeExprGen.cpp:620
+  case UO_Deref:  // *x
+  case UO_Not:    // ~x
+  case UO_Real:   // __real x
----------------
This is reachable and will always return true thanks to the magic of integer promotions:
```
void func() {
  bool b = true;
  b = ~b;
}
```


================
Comment at: clang/test/AST/Interp/literals.cpp:2-15
+// RUN: %clang_cc1 -std=c++11 -verify %s -DREFERENCE
 
 static_assert(true, "");
 static_assert(false, ""); // expected-error{{failed}}
 static_assert(nullptr == nullptr, "");
 static_assert(1 == 1, "");
 static_assert(1 == 3, ""); // expected-error{{failed}}
----------------



Repository:
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  https://reviews.llvm.org/D132098/new/

https://reviews.llvm.org/D132098



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