Commit Graph

9 Commits

Author SHA1 Message Date
Richard Smith 81df9eb0f2 PR33839: Fix -Wunused handling for structured binding declarations.
We warn about a structured binding declaration being unused only if none of its
bindings are used.

llvm-svn: 314733
2017-10-02 22:43:36 +00:00
Charles Li 1a88adbb27 Lit C++11 Compatibility Patch #8
24 tests have been updated for C++11 compatibility.

llvm-svn: 266387
2016-04-14 23:47:07 +00:00
Matt Beaumont-Gay abf836cffa Fix -Wunused-value to not warn on expressions that have unresolved lookups due
to dependent arguments.

llvm-svn: 166468
2012-10-23 06:15:26 +00:00
Eli Friedman bdd5753bda Handle C++ functional casts in a similar way to C-style casts in
unused expression warnings.  <rdar://problem/12359208>.

llvm-svn: 164569
2012-09-24 23:02:26 +00:00
Eli Friedman f92f6454ef A minor tweak to the new volatile lvalue warning: don't warn on "(void)x", where "x" refers to a local variable. This should silence a useless warning in compiler-rt and other places.
llvm-svn: 157414
2012-05-24 21:05:41 +00:00
Eli Friedman c11535c248 Add a warning to diagnose statements in C++ like "*(volatile int*)x;". Conceptually, this is part of -Wunused-value, but I added a separate flag -Wunused-volatile-lvalue so it doesn't get turned off by accident with -Wno-unused-value. I also made a few minor improvements to existing unused value warnings in the process. <rdar://problem/11516811>.
llvm-svn: 157362
2012-05-24 00:47:05 +00:00
Douglas Gregor 27aa77ac08 Improve the test for unused-expression warnings slightly
llvm-svn: 93644
2010-01-16 18:17:21 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
- This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

llvm-svn: 91446
2009-12-15 20:14:24 +00:00
Eli Friedman debdc1d732 PR4103: Silence bogus unused expression warning.
llvm-svn: 70384
2009-04-29 16:35:53 +00:00