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llvm-mirror/lib/Transforms/AggressiveInstCombine
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 Sink all InitializePasses.h includes 2019-11-13 16:34:37 -08:00
AggressiveInstCombineInternal.h
CMakeLists.txt [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries" 2019-11-21 10:48:08 -08:00
LLVMBuild.txt
TruncInstCombine.cpp [ConstantFolding] Always return something from ConstantFoldConstant 2020-03-04 18:24:47 +01:00