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4 Commits

Author SHA1 Message Date
Richard Smith 1780d82f35 Teach EvaluatedExprVisitor that the condition and unselected branches of a 
_Generic expression are unevaluated.

llvm-svn: 223266
 2014-12-03 21:00:20 +00:00
Richard Smith e8efd99b24 PR21706: -Wunsequenced was missing warnings when leaving a sequenced region that contained side effects. 
llvm-svn: 223184
 2014-12-03 01:05:50 +00:00
Richard Smith e3dbfe04b7 Teach -Wunsequenced that the side-effects of a function evaluation are sequenced 
before the value computation of the result. In C, this is implied by there being
a sequence point after their evaluation, and in C++, it's implied by the
side-effects being sequenced before the expressions and statements in the
function body.

llvm-svn: 185282
 2013-06-30 10:40:20 +00:00
Richard Smith 83e37bee44 PR16467: Teach -Wunsequenced that in C11 (unlike C++11), an assignment's 
side-effect is not sequenced before its value computation. Also fix a
mishandling of ?: expressions where the condition is constant that was
exposed by the tests for this.

llvm-svn: 185035
 2013-06-26 23:16:51 +00:00