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Author SHA1 Message Date
Erich Keane 436e5cc0f1 Simplify test from r334650 
No reason to have the 'bool' as an intermediary value,
simply use the fact that curley braces enforce eval order.

llvm-svn: 334652
 2018-06-13 20:47:12 +00:00
Erich Keane 00958270aa Implement constexpr __builtin_*_overflow 
As requested here:https://bugs.llvm.org/show_bug.cgi?id=37633
permit the __builtin_*_overflow builtins in constexpr functions.

Differential Revision: https://reviews.llvm.org/D48040

llvm-svn: 334650
 2018-06-13 20:43:27 +00:00
Erich Keane 1d73d1aaa1 Correct behavior of __builtin_*_overflow and constexpr. 
Enable these builtins to be called across a lambda
boundary with captureless const/constexpr, as brought up by 
Eli here: https://reviews.llvm.org/D48040

Differential Revision: https://reviews.llvm.org/D48053

llvm-svn: 334597
 2018-06-13 13:25:11 +00:00