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New testcase for unused expression analysis 

llvm-svn: 39683
This commit is contained in:
Chris Lattner 2007-06-27 05:58:33 +00:00
parent 1ec5f563c7
commit c4c8e2546b
1 changed files with 26 additions and 0 deletions
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26
clang/test/Sema/unused-expr.c Normal file
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// 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;
}