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| author | Dan Gohman <gohman@apple.com> | 2009-07-25 01:13:03 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-07-25 01:13:03 +0000 |
| commit | 2aa3f04d55486e695f617722243220befe84223c (patch) | |
| tree | 699e693217641d09edb5786b18769ea616324d6d /lib/Transforms/Utils/AddrModeMatcher.cpp | |
| parent | d3e6be820c36eefc36c58ccd0247639bcc4508c5 (diff) | |
| download | external_llvm-2aa3f04d55486e695f617722243220befe84223c.zip external_llvm-2aa3f04d55486e695f617722243220befe84223c.tar.gz external_llvm-2aa3f04d55486e695f617722243220befe84223c.tar.bz2 | |
Instead of eagerly creating new SCEVs to replace all SCEVs that are
affected after a PHI node has been analyzed, just remove affected
SCEVs from the Scalars map, so that they'll be (lazily) recreated as
needed. This avoids creating SCEV objects that aren't actually needed.
Also, rewrite the associated def-use walking code to be non-recursive
and to continue traversing past Instructions that don't have an
entry in the Scalars map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77032 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/AddrModeMatcher.cpp')
0 files changed, 0 insertions, 0 deletions