9 Commits

Author SHA1 Message Date
Chris Lattner
bff56dc518 Fix, correctly this time, the computation of the return value
Fix a spello
Tighten up the assertion checking

No functionality changes.

llvm-svn: 11036
2004-01-31 21:21:43 +00:00
Chris Lattner
05b7fef02f * Fix incorrect computation of the runOnMachineFunction return value
* Turn a bunch of instance variables into automatic variables

llvm-svn: 11035
2004-01-31 21:14:04 +00:00
Chris Lattner
b0addcc1b0 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

llvm-svn: 11034
2004-01-31 21:07:15 +00:00
Alkis Evlogimenos
ef7c077e63 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.

llvm-svn: 10755
2004-01-11 09:18:45 +00:00
Chris Lattner
bd827343af fix warning
llvm-svn: 10692
2004-01-05 05:42:17 +00:00
Alkis Evlogimenos
496be157cc 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.

llvm-svn: 10682
2004-01-05 02:25:45 +00:00
Alkis Evlogimenos
e74dd531f7 Update description.
llvm-svn: 10681
2004-01-04 23:09:24 +00:00
Alkis Evlogimenos
9181e0ab5b Remove TwoAddressInstruction from the public headers and add an ID
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
90aeecae42 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.

llvm-svn: 10512
2003-12-18 13:06:04 +00:00