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r229495 | delena | 2015-02-17 05:10:05 -0800 (Tue, 17 Feb 2015) | 8 lines
Fixed a bug in store sinking.
The problem was in store-sink barrier check.
Store sink barrier should be checked for ModRef (read-write) mode.
http://llvm.org/bugs/show_bug.cgi?id=22613
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@229564 91177308-0d34-0410-b5e6-96231b3b80d8
- by Ella Bolshinsky
The alias analysis is used define whether the given instruction
is a barrier for store sinking. For 2 identical stores, following
instructions are checked in the both basic blocks, to determine
whether they are sinking barriers.
http://reviews.llvm.org/D6420
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224247 91177308-0d34-0410-b5e6-96231b3b80d8
Prevents hoisting of loads above stores and sinking of stores below loads
in MergedLoadStoreMotion.cpp (rdar://15991737)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213497 91177308-0d34-0410-b5e6-96231b3b80d8
Merges equivalent loads on both sides of a hammock/diamond
and hoists into into the header.
Merges equivalent stores on both sides of a hammock/diamond
and sinks it to the footer.
Can enable if conversion and tolerate better load misses
and store operand latencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213396 91177308-0d34-0410-b5e6-96231b3b80d8
