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authorJohn Brawn <john.brawn@arm.com>2018-07-23 12:14:45 +0000
committerJohn Brawn <john.brawn@arm.com>2018-07-23 12:14:45 +0000
commitfc18a6ad7daf650d18ab543f9138b154e7b312b2 (patch)
tree2fd359ecbc073e93a68f0ec742aa86dcf5360043 /lldb/source/Plugins/ScriptInterpreter/Python/lldb-python.h
parent39fa372721de2d280b0de410be3d635fad6263da (diff)
downloadbcm5719-llvm-fc18a6ad7daf650d18ab543f9138b154e7b312b2.tar.gz
bcm5719-llvm-fc18a6ad7daf650d18ab543f9138b154e7b312b2.zip
[GVN] Don't use the eliminated load as an available value in phi construction
In ConstructSSAForLoadSet if an available value is actually the load that we're doing SSA construction to eliminate, then we can omit it as SSAUpdate will add in the value for the phi that will be replacing it anyway. This can result in simpler IR which can allow further optimisation. Differential Revision: https://reviews.llvm.org/D44160 llvm-svn: 337686
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