4 Commits

Author	SHA1	Message	Date
Richard Smith	3f1d6de4f7	Revert r332847; it caused us to miscompile certain forms of reference initialization. ... llvm-svn: 332886	2018-05-21 20:36:58 +00:00
Serge Pavlov	9f8068420a	[CodeGen] Recognize more cases of zero initialization ... If a variable has an initializer, codegen tries to build its value. If the variable is large in size, building its value requires substantial resources. It causes strange behavior from user viewpoint: compilation of huge zero initialized arrays like: char data_1[2147483648u] = { 0 }; consumes enormous amount of time and memory. With this change codegen tries to determine if variable initializer is equivalent to zero initializer. In this case variable value is not constructed. This change fixes PR18978. Differential Revision: https://reviews.llvm.org/D46241 llvm-svn: 332847	2018-05-21 16:09:54 +00:00
Ivan A. Kosarev	1a20f69ce8	[AST] Fix passing large-array-init.cpp on builds without asserts ... Differential Revision: https://reviews.llvm.org/D43187 llvm-svn: 325123	2018-02-14 13:27:48 +00:00
Ivan A. Kosarev	01df519f7e	[AST] Refine the condition for element-dependent array fillers ... This patch fixes clang to not consider braced initializers for aggregate elements of arrays to be potentially dependent on the indices of the initialized elements. Resolves bug 18978: initialize a large static array = clang oom? https://bugs.llvm.org/show_bug.cgi?id=18978 Differential Revision: https://reviews.llvm.org/D43187 llvm-svn: 325120	2018-02-14 13:10:35 +00:00