[ARM] Allow zext in ARMCodeGenPrepare
authorSam Parker <sam.parker@arm.com>
Thu, 16 Aug 2018 11:54:09 +0000 (11:54 +0000)
committerSam Parker <sam.parker@arm.com>
Thu, 16 Aug 2018 11:54:09 +0000 (11:54 +0000)
commit0e2f0bd48ec94268397892bb5688cd8534f9e538
tree2628e5523748f760059cfa5a34ce17a435832e4e
parentfc1a547be7a3c1e7447fbfbd2c8b98abe12e334d
[ARM] Allow zext in ARMCodeGenPrepare

Treat zext instructions as roots, like we do for truncs.

Differential Revision: https://reviews.llvm.org/D50759

llvm-svn: 339868
llvm/lib/Target/ARM/ARMCodeGenPrepare.cpp
llvm/test/CodeGen/ARM/arm-cgp-calls.ll
llvm/test/CodeGen/ARM/arm-cgp-zext-truncs.ll