Support sizeof for VLA expressions (sizeof(someVLA)). sizeof(int[n]) still unimplemented. A VLA region's sizeof value matches its extent.

llvm-svn: 107611

1 files changed, 9 insertions, 0 deletions

diff --git a/clang/test/Analysis/outofbound.c b/clang/test/Analysis/outofbound.c
index 8ffb3e1efbf..9b487300c88 100644
--- a/clang/test/Analysis/outofbound.c
+++ b/clang/test/Analysis/outofbound.c
@@ -62,3 +62,12 @@ void vla(int a) {
     x[5] = 5; // expected-warning{{out-of-bound}}
   }
 }
+
+void sizeof_vla(int a) {
+  if (a == 5) {
+    char x[a];
+    int y[sizeof(x)];
+    y[4] = 4; // no-warning
+    y[5] = 5; // expected-warning{{out-of-bound}}
+  }
+}