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-rw-r--r--test/Analysis/asm.cpp12
1 files changed, 12 insertions, 0 deletions
diff --git a/test/Analysis/asm.cpp b/test/Analysis/asm.cpp
new file mode 100644
index 0000000000000..1180063502168
--- /dev/null
+++ b/test/Analysis/asm.cpp
@@ -0,0 +1,12 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker debug.ExprInspection -fheinous-gnu-extensions -w %s -verify
+
+int clang_analyzer_eval(int);
+
+int global;
+void testRValueOutput() {
+ int &ref = global;
+ ref = 1;
+ __asm__("" : "=r"(((int)(global)))); // don't crash on rvalue output operand
+ clang_analyzer_eval(global == 1); // expected-warning{{UNKNOWN}}
+ clang_analyzer_eval(ref == 1); // expected-warning{{UNKNOWN}}
+}