llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Timm Baeder (tbaederr)

<details>
<summary>Changes</summary>

Adjust to the new way the ast walker is doing it.

---
Full diff: https://github.com/llvm/llvm-project/pull/140000.diff


2 Files Affected:

- (modified) clang/lib/AST/ByteCode/Interp.cpp (+13) 
- (modified) clang/test/SemaCXX/consteval-assert.cpp (+7-3) 


``````````diff
diff --git a/clang/lib/AST/ByteCode/Interp.cpp 
b/clang/lib/AST/ByteCode/Interp.cpp
index bc860185fea21..ab4bd96b4f993 100644
--- a/clang/lib/AST/ByteCode/Interp.cpp
+++ b/clang/lib/AST/ByteCode/Interp.cpp
@@ -851,6 +851,19 @@ bool CheckCallable(InterpState &S, CodePtr OpPC, const 
Function *F) {
   if (F->isLambdaStaticInvoker())
     return true;
 
+  // Diagnose failed assertions specially.
+  if (S.Current->getLocation(OpPC).isMacroID() &&
+      F->getDecl()->getIdentifier()) {
+    StringRef Name = F->getDecl()->getName();
+    bool AssertFailed =
+        Name == "__assert_rtn" || Name == "__assert_fail" || Name == 
"_wassert";
+    if (AssertFailed) {
+      S.FFDiag(S.Current->getLocation(OpPC),
+               diag::note_constexpr_assert_failed);
+      return false;
+    }
+  }
+
   if (S.getLangOpts().CPlusPlus11) {
     const FunctionDecl *DiagDecl = F->getDecl();
 
diff --git a/clang/test/SemaCXX/consteval-assert.cpp 
b/clang/test/SemaCXX/consteval-assert.cpp
index b54a38ff26105..8f0b9046518ee 100644
--- a/clang/test/SemaCXX/consteval-assert.cpp
+++ b/clang/test/SemaCXX/consteval-assert.cpp
@@ -1,6 +1,10 @@
-// RUN: %clang_cc1 -std=c++23 -verify=expected,cxx20_plus -DTEST_LINUX %s
-// RUN: %clang_cc1 -std=c++23 -verify=expected,cxx20_plus -DTEST_WINDOWS %s
-// RUN: %clang_cc1 -std=c++23 -verify=expected,cxx20_plus -DTEST_DARWIN %s
+// RUN: %clang_cc1 -std=c++23 -verify -DTEST_LINUX %s
+// RUN: %clang_cc1 -std=c++23 -verify -DTEST_WINDOWS %s
+// RUN: %clang_cc1 -std=c++23 -verify -DTEST_DARWIN %s
+
+// RUN: %clang_cc1 -std=c++23 -verify -DTEST_LINUX %s   
-fexperimental-new-constant-interpreter
+// RUN: %clang_cc1 -std=c++23 -verify -DTEST_WINDOWS %s 
-fexperimental-new-constant-interpreter
+// RUN: %clang_cc1 -std=c++23 -verify -DTEST_DARWIN %s  
-fexperimental-new-constant-interpreter
 
 #ifdef __ASSERT_FUNCTION
 #undef __ASSERT_FUNCTION

``````````

</details>


https://github.com/llvm/llvm-project/pull/140000
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