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Author SHA1 Message Date
Rafael Espindola 925213b0fa Add 'not' to commands that are expected to fail. 
This is at least good documentation, but also opens the possibility of
using pipefail.

llvm-svn: 185652
 2013-07-04 16:16:58 +00:00
Richard Smith a8105bc9ce C++11 generalized constant expressions: implement checking and diagnostics for 
pointer-arithmetic-related undefined behavior and unspecified results. We
continue to fold such values, but now notice they aren't constant expressions.

llvm-svn: 147659
 2012-01-06 16:39:00 +00:00
Richard Smith f6f003af6a C++11 constexpr: Add note stacks containing backtraces if constant evaluation 
fails within a call to a constexpr function. Add -fconstexpr-backtrace-limit
argument to driver and frontend, to control the maximum number of notes so
produced (default 10). Fix APValue printing to be able to pretty-print all
APValue types, and move the testing for this functionality from a unittest to
a -verify test now that it's visible in clang's output.

llvm-svn: 146749
 2011-12-16 19:06:07 +00:00