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authorDavid L. Jones <dlj@google.com>2017-11-15 01:40:05 +0000
committerDavid L. Jones <dlj@google.com>2017-11-15 01:40:05 +0000
commitfdfce82b87b73e18577d493e84bdabe2585b95d0 (patch)
treee8d9290e273dba03920bf15a8c7742fcf5ed0b87 /test/Analysis/vector.c
parent41af1698c520ea38edf83e7c91f1e519d34f20c1 (diff)
parenta7540887e8b5cb34ee28c12bef863bad85c65b6f (diff)
downloadclang-google/testing.tar.gz
Creating branches/google/testing and tags/google/testing/2017-11-14 from r317716google/testing
git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/google/testing@318248 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/vector.c')
-rw-r--r--test/Analysis/vector.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Analysis/vector.c b/test/Analysis/vector.c
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+++ b/test/Analysis/vector.c
@@ -0,0 +1,28 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -verify %s
+
+typedef int __attribute__((ext_vector_type(2))) V;
+
+void clang_analyzer_numTimesReached();
+void clang_analyzer_eval(int);
+
+int flag;
+
+V pass_through_and_set_flag(V v) {
+ flag = 1;
+ return v;
+}
+
+V dont_crash_and_dont_split_state(V x, V y) {
+ flag = 0;
+ V z = x && pass_through_and_set_flag(y);
+ clang_analyzer_eval(flag); // expected-warning{{TRUE}}
+ // FIXME: For now we treat vector operator && as short-circuit,
+ // but in fact it is not. It should always evaluate
+ // pass_through_and_set_flag(). It should not split state.
+ // Now we also get FALSE on the other path.
+ // expected-warning@-5{{FALSE}}
+
+ // FIXME: Should be 1 since we should not split state.
+ clang_analyzer_numTimesReached(); // expected-warning{{2}}
+ return z;
+}