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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12029 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2004-03-01 02:44:44 +00:00
parent 21585221b6
commit 2d6a6aa137
1 changed files with 3 additions and 1 deletions
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4
lib/Analysis/BasicAliasAnalysis.cpp
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@ -14,7 +14,9 @@
// FIXME: This could be extended for a very simple form of mod/ref information.
// If a pointer is locally allocated (either malloc or alloca) and never passed
// into a call or stored to memory, then we know that calls will not mod/ref the
// memory. This can be important for tailcallelim.
// memory. This can be important for tailcallelim, and can support CSE of loads
// and dead store elimination across calls. This is particularly important for
// stack allocated arrays.
//
//===----------------------------------------------------------------------===//