[cfe-commits] r39683 - /cfe/cfe/trunk/test/Sema/unused-expr.c

[clattner at cs.uiuc.edu]

Author: clattner
Date: Wed Jul 11 11:47:07 2007
New Revision: 39683

URL: http://llvm.org/viewvc/llvm-project?rev=39683&view=rev
Log:
New testcase for unused expression analysis

Added:
    cfe/cfe/trunk/test/Sema/unused-expr.c   (with props)

Added: cfe/cfe/trunk/test/Sema/unused-expr.c
URL: http://llvm.org/viewvc/llvm-project/cfe/cfe/trunk/test/Sema/unused-expr.c?rev=39683&view=auto

==============================================================================
--- cfe/cfe/trunk/test/Sema/unused-expr.c (added)
+++ cfe/cfe/trunk/test/Sema/unused-expr.c Wed Jul 11 11:47:07 2007
@@ -0,0 +1,26 @@
+// RUN: clang -parse-ast-check %s
+
+int foo(int X, int Y);
+
+void bar(volatile int *VP, int *P, int A,
+         _Complex double C, volatile _Complex double VC) {
+  
+  VP == P;             // expected-warning {{expression result unused}}
+  (void)A;             // expected-warning {{expression result unused}}
+  (void)foo(1,2);      // no warning.
+  
+  A == foo(1, 2);      // expected-warning {{expression result unused}}
+
+  foo(1,2)+foo(4,3);   // expected-warning {{expression result unused}}
+
+
+  *P;                  // expected-warning {{expression result unused}}
+  *VP;                 // no warning.
+  P[4];                // expected-warning {{expression result unused}}
+  VP[4];               // no warning.
+
+  // FIXME: SEMA explodes on these.
+  //__real__ C;
+  //__real__ VC;
+}
+

Propchange: cfe/cfe/trunk/test/Sema/unused-expr.c

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Propchange: cfe/cfe/trunk/test/Sema/unused-expr.c

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