Alkis Evlogimenos
80da865f77
Change MachineBasicBlock's vector of MachineInstr pointers into an
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ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.
llvm-svn: 11340
2004-02-12 02:27:10 +00:00
Tanya Lattner
dd0c255d14
Added missing include.
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llvm-svn: 11129
2004-02-05 05:04:39 +00:00
Alkis Evlogimenos
327426411e
Modify the two address instruction pass to remove the duplicate
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operand of the instruction and thus simplify the register allocation.
llvm-svn: 11124
2004-02-04 22:17:40 +00:00
Alkis Evlogimenos
74b26f77a3
Revert changes. Will implement this using a different set of primitives
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llvm-svn: 11091
2004-02-02 23:08:58 +00:00
Alkis Evlogimenos
6471e66fbb
Correctly update def/use information for modified machine operands.
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llvm-svn: 11087
2004-02-02 21:56:40 +00:00
Chris Lattner
a2ef296994
Fix, correctly this time, the computation of the return value
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Fix a spello
Tighten up the assertion checking
No functionality changes.
llvm-svn: 11036
2004-01-31 21:21:43 +00:00
Chris Lattner
626f431165
* Fix incorrect computation of the runOnMachineFunction return value
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* Turn a bunch of instance variables into automatic variables
llvm-svn: 11035
2004-01-31 21:14:04 +00:00
Chris Lattner
d835aa6711
Remove unneeded #includes
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Move Passes.h (which defines the interface to this file) to the top.
Move statistics to the top of the file.
Add a comment
llvm-svn: 11034
2004-01-31 21:07:15 +00:00
Alkis Evlogimenos
52a714b45b
Make LiveVariables::HandlePhysRegUse and
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LiveVariables::HandlePhysRegDef private they use information that is
not in memory when LiveVariables finishes the analysis.
Also update the TwoAddressInstructionPass to not use this interface.
llvm-svn: 10755
2004-01-11 09:18:45 +00:00
Chris Lattner
fc3d0598df
fix warning
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llvm-svn: 10692
2004-01-05 05:42:17 +00:00
Alkis Evlogimenos
08c5311729
Currently we cannot handle two-address instructions of the form:
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A = B op C where A == C, but this cannot really occur in practice
because of SSA form. Add an assert to check that just to be safe.
llvm-svn: 10682
2004-01-05 02:25:45 +00:00
Alkis Evlogimenos
5e0e67173d
Update description.
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llvm-svn: 10681
2004-01-04 23:09:24 +00:00
Alkis Evlogimenos
7139090fd2
Remove TwoAddressInstruction from the public headers and add an ID
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instead, since this pass doesn't expose any state to its users.
llvm-svn: 10520
2003-12-18 22:40:24 +00:00
Alkis Evlogimenos
725021cb6c
Add TwoAddressInstructionPass to handle instructions that have two or
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more operands and the two first operands are constrained to be the
same. The pass takes an instruction of the form:
a = b op c
and transforms it into:
a = b
a = a op c
and also preserves live variables.
llvm-svn: 10512
2003-12-18 13:06:04 +00:00
