Simon Pilgrim 360ce82db2 [DAG] Move integer setcc %x, %x folding into FoldSetCC ...

First step towards PR40800 - I intend to move the float case in a separate future patch.

I had to tweak the (overly reduced) thumb2 test and the x86 widening test change is annoying (no longer rematerializable) but we should address this separately.

Differential Revision: https://reviews.llvm.org/D59244

llvm-svn: 356040

2019-03-13 11:08:57 +00:00

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