Bill Wendling
a4b662272d
Remove dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45496 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-02 20:47:37 +00:00
Bill Wendling
9258cd3994
Use the new architecture to get the containing machine basic block for a machine
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instruction. Also, use "splice" to move the new instruction instead of
remove/insert (where it was leaking memory anyway).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45492 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-02 19:32:43 +00:00
Chris Lattner
4ee451de36
Remove attribution from file headers, per discussion on llvmdev.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:36:04 +00:00
Bill Wendling
60ff1a3005
Updated comments to reflect what "side effects" means in this situation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45245 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-20 01:08:10 +00:00
Bill Wendling
280f4565eb
Add debugging info. Use the newly created "hasUnmodelledSideEffects" method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45178 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-18 21:38:04 +00:00
Bill Wendling
efe2be7976
Need to grow the indexed map. Added debug statements.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44892 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 23:27:51 +00:00
Bill Wendling
a17ad59e13
Simplify slightly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44881 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 22:22:22 +00:00
Bill Wendling
12ebf14048
Blark! How in the world did this work without this?!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44874 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 19:40:06 +00:00
Bill Wendling
28bd5f0e47
- Update the virtual reg to machine instruction map when hoisting.
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- Fix subtle bug when creating initially creating this map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44873 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 19:17:04 +00:00
Bill Wendling
650b0527a4
Checking for "zero operands" during the "CanHoistInst()" method isn't necessary
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because those with side effects will be caught by other checks in here.
Also, simplify the check for a BB in a sub loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44871 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 18:45:11 +00:00
Bill Wendling
041b3f8356
Reverting 44702. It wasn't correct to rename them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44727 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 23:58:46 +00:00
Bill Wendling
320c630c1b
Renaming:
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isTriviallyReMaterializable -> hasNoSideEffects
isReallyTriviallyReMaterializable -> isTriviallyReMaterializable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44702 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 07:17:56 +00:00
Bill Wendling
b48519cbad
Incorporated comments from Evan and Chris:
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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20071203/056043.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20071203/056048.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44696 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 01:47:01 +00:00
Bill Wendling
0f940c95d4
Initial commit of the machine code LICM pass. It successfully hoists this:
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_foo:
li r2, 0
LBB1_1: ; bb
li r5, 0
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
to:
_foo:
li r2, 0
li r5, 0
LBB1_1: ; bb
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
ZOMG!! :-)
Moar to come...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44687 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-07 21:42:31 +00:00
