Author: Sam McCall
Date: 2023-03-25T04:20:06+01:00
New Revision: d630134f1f1f83291177310c6fcf0dc7274f6494

URL: 
https://github.com/llvm/llvm-project/commit/d630134f1f1f83291177310c6fcf0dc7274f6494
DIFF: 
https://github.com/llvm/llvm-project/commit/d630134f1f1f83291177310c6fcf0dc7274f6494.diff

LOG: [dataflow] handle missing case in value debug strings

Differential Revision: https://reviews.llvm.org/D146625

Added: 
    

Modified: 
    clang/lib/Analysis/FlowSensitive/DebugSupport.cpp
    clang/unittests/Analysis/FlowSensitive/DebugSupportTest.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/Analysis/FlowSensitive/DebugSupport.cpp 
b/clang/lib/Analysis/FlowSensitive/DebugSupport.cpp
index d4886f154b33..6ac90e3970cc 100644
--- a/clang/lib/Analysis/FlowSensitive/DebugSupport.cpp
+++ b/clang/lib/Analysis/FlowSensitive/DebugSupport.cpp
@@ -106,6 +106,10 @@ class DebugStringGenerator {
       S = getAtomName(&cast<AtomicBoolValue>(B));
       break;
     }
+    case Value::Kind::TopBool: {
+      S = "top";
+      break;
+    }
     case Value::Kind::Conjunction: {
       auto &C = cast<ConjunctionValue>(B);
       auto L = debugString(C.getLeftSubValue(), Depth + 1);

diff  --git a/clang/unittests/Analysis/FlowSensitive/DebugSupportTest.cpp 
b/clang/unittests/Analysis/FlowSensitive/DebugSupportTest.cpp
index 6dded4b26702..810ba82e4c33 100644
--- a/clang/unittests/Analysis/FlowSensitive/DebugSupportTest.cpp
+++ b/clang/unittests/Analysis/FlowSensitive/DebugSupportTest.cpp
@@ -27,7 +27,14 @@ TEST(BoolValueDebugStringTest, AtomicBoolean) {
   auto B = Ctx.atom();
 
   auto Expected = R"(B0)";
-  debugString(*B);
+  EXPECT_THAT(debugString(*B), StrEq(Expected));
+}
+
+TEST(BoolValueDebugStringTest, Top) {
+  ConstraintContext Ctx;
+  auto B = Ctx.top();
+
+  auto Expected = R"(top)";
   EXPECT_THAT(debugString(*B), StrEq(Expected));
 }
 


        
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