[clang] 20f7b5f - [Clang] Test case for -Wunused-but-set-variable, warn for volatile.

[George Burgess IV via cfe-commits]

Author: Michael Benfield
Date: 2021-06-14T10:25:59-07:00
New Revision: 20f7b5f3f9c8ebbbe7bf6648c824b815385d4bf7

URL: https://github.com/llvm/llvm-project/commit/20f7b5f3f9c8ebbbe7bf6648c824b815385d4bf7
DIFF: https://github.com/llvm/llvm-project/commit/20f7b5f3f9c8ebbbe7bf6648c824b815385d4bf7.diff

LOG: [Clang] Test case for -Wunused-but-set-variable, warn for volatile.

Differential Revision: https://reviews.llvm.org/D103623

Added: 
    

Modified: 
    clang/test/Sema/warn-unused-but-set-variables.c

Removed: 
    


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diff  --git a/clang/test/Sema/warn-unused-but-set-variables.c b/clang/test/Sema/warn-unused-but-set-variables.c
index 93595a251df0..a8d05243321f 100644
--- a/clang/test/Sema/warn-unused-but-set-variables.c
+++ b/clang/test/Sema/warn-unused-but-set-variables.c
@@ -23,6 +23,10 @@ int f0() {
   int a;
   w = (a = 0);
 
+  // Following gcc, warn for a volatile variable.
+  volatile int b; // expected-warning{{variable 'b' set but not used}}
+  b = 0;
+
   int x;
   x = 0;
   return x;