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authorAndrew Trick <atrick@apple.com>2012-06-13 02:39:03 +0000
committerAndrew Trick <atrick@apple.com>2012-06-13 02:39:03 +0000
commit344fb64fa3b391462cc0247d01ba706b41231500 (patch)
treee70bdb6245891d7bca89a381752153f71d8ac7c3 /clang/lib/Frontend/CompilerInvocation.cpp
parent5b90645abb6fdf8e3b098adc2da650b791016b7d (diff)
downloadbcm5719-llvm-344fb64fa3b391462cc0247d01ba706b41231500.tar.gz
bcm5719-llvm-344fb64fa3b391462cc0247d01ba706b41231500.zip
sched: fix latency of memory dependence chain edges for consistency.
For store->load dependencies that may alias, we should always use TrueMemOrderLatency, which may eventually become a subtarget hook. In effect, we should guarantee at least TrueMemOrderLatency on at least one DAG path from a store to a may-alias load. This should fix the standard mode as well as -enable-aa-sched-mi". llvm-svn: 158380
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