PR8455: Handle an attribute between a goto label and a variable declaration per
the GNU documentation: the attribute only appertains to the label if it is
followed by a semicolon. Based on a patch by

PR8455: Handle an attribute between a goto label and a variable declaration per
the GNU documentation: the attribute only appertains to the label if it is
followed by a semicolon. Based on a patch by Aaron Ballman!

llvm-svn: 194869

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Suppress -Wunused-variable for variables declared in headers, which may in
fact be defined and used in another TU.

Reshuffle some test cases because we suppress -Wunused-variable after we've
emitted

Suppress -Wunused-variable for variables declared in headers, which may in
fact be defined and used in another TU.

Reshuffle some test cases because we suppress -Wunused-variable after we've
emitted an error.

This fixes PR15558.

llvm-svn: 179138

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Fix false positive in -Wunused-variable when a ctor call make involve cleanups.

llvm-svn: 166625

Fix a crash-on-invalid when parsing a reference to an invalid auto declaration

auto x((unknown));
int& y = x;

would crash because we were not flagging 'x' as an invalid declaration here.

llvm-

Fix a crash-on-invalid when parsing a reference to an invalid auto declaration

auto x((unknown));
int& y = x;

would crash because we were not flagging 'x' as an invalid declaration here.

llvm-svn: 165675

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Improvements to the uninitialized variable warning: Check if the constructor
call is elidable or if the constructor is trivial instead of checking if it
is user declared.

llvm-svn: 147652

Fix PR10168: don't warn for unused non-dependent variables in both the template definition and each instantiation.

llvm-svn: 133580

Clean up the tests for warning about unused function results given the
appropriate attribute. Add a bit more testing that finds a pretty bad
regression (since ~forever) in this warning. Fix it with a

Clean up the tests for warning about unused function results given the
appropriate attribute. Add a bit more testing that finds a pretty bad
regression (since ~forever) in this warning. Fix it with a nice 2 line
change. =]

llvm-svn: 126098

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Make #pragma unused work for static local variables.

llvm-svn: 118500

Revert r114316, -Wunused-value enabled by default was intended.

llvm-svn: 114318

Make -Wunused-value off by default, matching GCC. Fixes rdar://7126194.

llvm-svn: 114316

Reinstate the fix for PR7556. A silly use of isTrivial() was
suppressing copies of objects with trivial copy constructors.

llvm-svn: 107857

Revert r107828 and r107827, the fix for PR7556, which seems to be
breaking bootstrap on Linux.

llvm-svn: 107837

Do not use CXXZeroValueInitExpr for class types. Instead, use
CXXConstructExpr/CXXTemporaryObjectExpr/CXXNewExpr as
appropriate. Fixes PR7556, and provides a slide codegen improvement
when copy-initi

Do not use CXXZeroValueInitExpr for class types. Instead, use
CXXConstructExpr/CXXTemporaryObjectExpr/CXXNewExpr as
appropriate. Fixes PR7556, and provides a slide codegen improvement
when copy-initializing a POD class type from a value-initialized
temporary. Previously, we weren't eliding the copy.

llvm-svn: 107827

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Don't look into incomplete types when trying to warn about unused
variables. Fixes PR6948.

llvm-svn: 102436

When we have a dependent direct initializer but not a dependent
variable type, we can (and should) still check for completeness of the
variable's type. Do so, to work around an assertion that shows u

When we have a dependent direct initializer but not a dependent
variable type, we can (and should) still check for completeness of the
variable's type. Do so, to work around an assertion that shows up in
Boost's shared_ptr.

llvm-svn: 95934

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support the warn_unused_result in C++ class methods

llvm-svn: 92095

Update tests to use %clang instead of 'clang', and forcibly disable use of '
clang ' or ' clang -cc1 ' or ' clang-cc ' in test lines (by substituting them to
garbage).

llvm-svn: 91460

Fix PR5531.

llvm-svn: 89106

Add bug number.

llvm-svn: 86357

Don't treat variables with non-trivial ctors or dtors as unused. Fixes PR5407.

llvm-svn: 86352

Implement support for -Wunused-variable, from Oscar Bonilla!

llvm-svn: 83577