[IRCE] Remove unused IsSigned and its accessor (NFC)
authorKazu Hirata <kazu@google.com>
Sat, 5 Dec 2020 05:26:12 +0000 (21:26 -0800)
committerKazu Hirata <kazu@google.com>
Sat, 5 Dec 2020 05:26:12 +0000 (21:26 -0800)
commit8006043b13d5e424f5e457b098ee363fe345a6b6
treecf87147e43a1f0c171f5f8a41455aac85ec223f5
parent3c12307c7a0523716de3dae883bc4f126a395d43
[IRCE] Remove unused IsSigned and its accessor (NFC)

IsSigned and its accessor, isSigned, were introduced on Oct 25, 2017
in commit 9ac7021a2563d433549a21990f96184d413e69e2.  The last use was
removed on Nov 20, 2017 in commit
268467869b99b15a15f81bf009d31e11536bef39.
llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp