Chris Lattner
75ce53eefd
Implement the code for PowerPC/inverted-bool-compares.ll, even though it
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that testcase still does not pass with the dag combiner. This is because
not all forms of br* are folded yet.
Also, when we combine a node into another one, delete the node immediately
instead of waiting for the node to potentially come up in the future.
llvm-svn: 23632
2005-10-05 06:11:08 +00:00
Chris Lattner
86ccb0efb4
Fix a crash compiling Olden/tsp
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llvm-svn: 23630
2005-10-05 04:45:43 +00:00
Chris Lattner
61f3785147
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
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Though I have done extensive testing, it is possible that this will break
things in configs I can't test. Please let me know if this causes a problem
and I'll fix it ASAP.
llvm-svn: 23504
2005-09-28 22:28:18 +00:00
Nate Begeman
236df45f1b
Stub out the rest of the DAG Combiner. Just need to fill in the
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select_cc bits and then wrap it in a convenience function for use with
regular select.
llvm-svn: 23389
2005-09-19 22:34:01 +00:00
Nate Begeman
d733cf7e8b
More DAG combining. Still need the branch instructions, and select_cc
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llvm-svn: 23371
2005-09-16 00:54:12 +00:00
Chris Lattner
52a8cb35e6
Add a missing #include, patch courtesy of Baptiste Lepilleur.
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llvm-svn: 23302
2005-09-09 23:53:39 +00:00
Nate Begeman
8422b3637e
Last round of 2-node folds from SD.cpp. Will move on to 3 node ops such
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as setcc and select next.
llvm-svn: 23295
2005-09-09 19:49:52 +00:00
Nate Begeman
1675c67c62
Move yet more folds over to the dag combiner from sd.cpp
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llvm-svn: 23278
2005-09-08 20:18:10 +00:00
Nate Begeman
c0f764ada4
Another round of dag combiner changes. This fixes some missing XOR folds
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as well as fixing how we replace old values with new values.
llvm-svn: 23260
2005-09-07 23:25:52 +00:00
Nate Begeman
e8db0c961a
Implement a common missing fold, (add (add x, c1), c2) -> (add x, c1+c2).
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This restores all of stanford to being identical with and without the dag
combiner with the add folding turned off in sd.cpp.
llvm-svn: 23258
2005-09-07 16:09:19 +00:00
Nate Begeman
143dc2039d
Add an option to the DAG Combiner to enable it for beta runs, and turn on
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that option for PowerPC's beta.
llvm-svn: 23253
2005-09-07 00:15:36 +00:00
Nate Begeman
e1a34193fa
Next round of DAGCombiner changes. This version now passes all the tests
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I have run so far when run before Legalize. It still needs to pick up the
SetCC folds, and nodes that use SetCC.
llvm-svn: 23243
2005-09-06 04:43:02 +00:00
Nate Begeman
613f777bbc
Next round of DAG Combiner changes. Just need to support multiple return
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values, and then we should be able to hook it up.
llvm-svn: 23231
2005-09-02 21:18:40 +00:00
Nate Begeman
18f456b8e3
Implement first round of feedback from chris (there's still a couple things
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left to do).
llvm-svn: 23195
2005-09-01 23:24:04 +00:00
Nate Begeman
517e40a5bb
Add the rest of the currently implemented visit routines to the switch
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statement in visit().
llvm-svn: 23185
2005-09-01 00:33:32 +00:00
Nate Begeman
be2fa8f86f
First pass at the DAG Combiner. It isn't used anywhere yet, but it should
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be mostly functional. It currently has all folds from SelectionDAG.cpp
that do not involve a condition code.
llvm-svn: 23184
2005-09-01 00:19:25 +00:00
