================
@@ -0,0 +1,21 @@
+// RUN: %clang_analyze_cc1 -std=c++20 \
+// RUN: -analyzer-checker=core,alpha.deadcode.UnreachableCode \
+// RUN: -analyzer-config experimental-enable-naive-ctu-analysis=true \
+// RUN: -analyzer-config max-nodes=10 \
+// RUN: -verify=ctu-on %s
+// ctu-on-no-diagnostics
+
+// RUN: %clang_analyze_cc1 -std=c++20 \
+// RUN: -analyzer-checker=core,alpha.deadcode.UnreachableCode \
+// RUN: -analyzer-config experimental-enable-naive-ctu-analysis=false \
+// RUN: -analyzer-config max-nodes=10 \
+// RUN: -verify=ctu-off %s
+// ctu-off-no-diagnostics
+
+#define NOP ((void)0)
+
+void entrypoint(int x) {
+ NOP; NOP; NOP; NOP; NOP;
+ NOP; NOP; NOP; NOP; NOP;
+ if (x) NOP;
----------------
steakhal wrote:
```suggestion
if (x) NOP; // no-warning: the true branch might be alive even in CTU
```
https://github.com/llvm/llvm-project/pull/219225
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