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authorNate Begeman <natebegeman@mac.com>2006-03-11 02:20:46 +0000
committerNate Begeman <natebegeman@mac.com>2006-03-11 02:20:46 +0000
commit442b32b5c5f690bc9b49d67b3ec76008879bc4d9 (patch)
treefe3e71fffa0ec5fb7290b29d95eb510178c63579 /runtime
parent78167faa18e66e95be3d73028b2db99bf3fbdcb3 (diff)
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Fix PR681 by using the standard Lengauer and Tarjan algorithm for dominator
set construction, rather than intersecting various std::sets. This reduces the memory usage for the testcase in PR681 from 496 to 26MB of ram on my darwin system, and reduces the runtime from 32.8 to 0.8 seconds on a 2.5GHz G5. This also enables future code sharing between Dom and PostDom now that they share near-identical implementations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26707 91177308-0d34-0410-b5e6-96231b3b80d8
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