Owen Anderson
4d13de4e3b
Cache non-local memory dependence analysis. This is a significant compile
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time performance win in most cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41126 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-16 21:27:05 +00:00
Owen Anderson
9528f11481
Make NonLocal and None const in the right way. :-)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40961 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-09 04:42:44 +00:00
Owen Anderson
49609a5ddf
Add one more comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40949 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-08 21:54:33 +00:00
Owen Anderson
179463c0d4
Cleanup and comment-ize the memdep header.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40948 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-08 21:53:20 +00:00
Owen Anderson
8cad423d94
Change the None and NonLocal markers in memdep to be const.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40946 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-08 21:39:39 +00:00
Owen Anderson
371d68958f
Get rid of unnecessary #include.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40885 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-07 00:38:16 +00:00
Owen Anderson
dbbe816757
Clean up a bunch of caching stuff in memdep. This reduces the time to run GVN
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on 403.gcc from ~15s to ~10s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40884 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-07 00:33:45 +00:00
Owen Anderson
9066020993
Make non-local memdep not be recursive, and fix a bug on 403.gcc that this exposed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40692 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-01 22:01:54 +00:00
David Greene
df464195fe
Fix GLIBCXX_DEBUG error owing to dereference of end iterator. There's
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no guarantee that an instruction returned by getDependency exists in
the maps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40647 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 20:01:27 +00:00
Owen Anderson
02d6852a1c
Forgot to include this file in my last commit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40496 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-25 21:30:15 +00:00
Owen Anderson
0cd320362e
Add basic support for performing whole-function RLE.
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Note: This has not yet been thoroughly tested. Use at your own risk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40489 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-25 19:57:03 +00:00
Owen Anderson
4beedbd006
Add initial support for non-local memory dependence analysis.
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NOTE: This has only been cursorily tested. Expected improvements soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40476 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-24 21:52:37 +00:00
Owen Anderson
faac518ce0
Add support for walking up memory def chains, which enables finding many more
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dead stores on 400.perlbench.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39929 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-16 21:52:50 +00:00
Owen Anderson
5f32320797
Add support for finding the dependencies of call and invoke instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38497 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-10 17:59:22 +00:00
Owen Anderson
6b278fc786
Fix a bunch of things from Chris' feedback
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38493 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-10 17:08:11 +00:00
Owen Anderson
78e02f78ce
A first stab at memory dependence analysis. This is an interface on top of
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alias analysis, adding caching and lazy computation of queries. This will
be used in planned improvements to memory access optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37958 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-06 23:14:35 +00:00
