Nikita Popov 81d4b8478e [ConstantFolding] Always return something from ConstantFoldConstant ... Spin-off from D75407. As described there, ConstantFoldConstant() currently returns null for non-ConstantExpr/ConstantVector inputs, but otherwise always returns non-null, independently of whether any folding has happened or not. This is confusing and makes consumer code more complicated. I would expect either that ConstantFoldConstant() returns only if it actually folded something, or that it always returns non-null. I'm going to the latter possibility here, which appears to be more useful considering existing usage. Differential Revision: https://reviews.llvm.org/D75543		2020-03-04 18:24:47 +01:00
..
AggressiveInstCombine.cpp
AggressiveInstCombineInternal.h
CMakeLists.txt
LLVMBuild.txt
TruncInstCombine.cpp	[ConstantFolding] Always return something from ConstantFoldConstant	2020-03-04 18:24:47 +01:00