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115 Commits

Author SHA1 Message Date
Alkis Evlogimenos
be766c7246 Remove getAllocatedRegNum(). Use getReg() instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11393 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-13 21:01:20 +00:00
Alkis Evlogimenos
c0b9dc5be7 Change MachineBasicBlock's vector of MachineInstr pointers into an 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 02:27:10 +00:00
Tanya Lattner
5a5960978a Added missing include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11129 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 05:04:39 +00:00
Alkis Evlogimenos
14be64018f Modify the two address instruction pass to remove the duplicate 
operand of the instruction and thus simplify the register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 22:17:40 +00:00
Alkis Evlogimenos
9fe7602862 Revert changes. Will implement this using a different set of primitives 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11091 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-02 23:08:58 +00:00
Alkis Evlogimenos
eea81bafd6 Correctly update def/use information for modified machine operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11087 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-02 21:56:40 +00:00
Chris Lattner
6b50767905 Fix, correctly this time, the computation of the return value 
Fix a spello
Tighten up the assertion checking

No functionality changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11036 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-31 21:21:43 +00:00
Chris Lattner
163c1e7a69 * Fix incorrect computation of the runOnMachineFunction return value 
* Turn a bunch of instance variables into automatic variables


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11035 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-31 21:14:04 +00:00
Chris Lattner
bd91c1c376 Remove unneeded #includes 
Move Passes.h (which defines the interface to this file) to the top.
Move statistics to the top of the file.
Add a comment


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11034 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-31 21:07:15 +00:00
Alkis Evlogimenos
b08bdc4a16 Make LiveVariables::HandlePhysRegUse and 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10755 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-11 09:18:45 +00:00
Chris Lattner
8c2403631b fix warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10692 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-05 05:42:17 +00:00
Alkis Evlogimenos
271bd2d7f1 Currently we cannot handle two-address instructions of the form: 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10682 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-05 02:25:45 +00:00
Alkis Evlogimenos
50c047d159 Update description. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10681 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-04 23:09:24 +00:00
Alkis Evlogimenos
4c080863de Remove TwoAddressInstruction from the public headers and add an ID 
instead, since this pass doesn't expose any state to its users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10520 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-18 22:40:24 +00:00
Alkis Evlogimenos
71499ded4d Add TwoAddressInstructionPass to handle instructions that have two or 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10512 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-18 13:06:04 +00:00