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251db1890c
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3440 Commits

Author SHA1 Message Date
Chris Lattner
251db1890c optimize duplicate ValueMap lookups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34599 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 18:40:32 +00:00
Evan Cheng
de4e942faa A couple of more places where a register liveness has been extended and its last kill should be updated accordingly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34597 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:51:27 +00:00
Evan Cheng
0badfea274 Add an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34596 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:47:31 +00:00
Evan Cheng
48ef398ebd Fix a couple of bugs related IsDead back propagation during coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34595 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:46:31 +00:00
Evan Cheng
16191f0333 If the liveinterval of the source instruction has been extended, remove the IsKill marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34594 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:41:59 +00:00
Evan Cheng
bc025fbb64 Only add liveinterval to livein set if it isn't assigned a stack slot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34593 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:39:02 +00:00
Chris Lattner
753d9cb50e fold trivial token factor nodes. This allows us to compile 
test/CodeGen/X86/fp-stack-ret.ll into:

        movl 4(%esp), %eax
        fldl (%eax)
        ret

instead of:

        subl $12, %esp
        movl 16(%esp), %eax
        movsd (%eax), %xmm0
        movsd %xmm0, (%esp)
        fldl (%esp)
        addl $12, %esp
        ret

by eliminating a token factor that blocked a check.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34584 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 08:24:27 +00:00
Chris Lattner
6618039f9f initialize a instance variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34567 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 01:28:05 +00:00
Jim Laskey
7a1de987a6 Deal with cases when MMI is not requested. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34556 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-24 09:45:44 +00:00
Jim Laskey
e80873ee75 Drop unused operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34555 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-24 09:44:17 +00:00
Chris Lattner
01ca65b23e Fix CodeGen/Generic/2007-02-23-DAGCombine-Miscompile.ll and PR1219 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34551 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-24 02:09:29 +00:00
Evan Cheng
50d25d7ff7 Reuse extends the liveness of a register. Transfer the kill to the operand that reuse it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34536 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 21:47:50 +00:00
Jim Laskey
1da20a71d1 Handle improper cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34535 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 21:45:01 +00:00
Evan Cheng
da2295e631 Handle cases when joining live intervals of two virtual registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 20:40:13 +00:00
Evan Cheng
403c45dfcc Mark livein registers as being in used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34525 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 08:41:19 +00:00
Evan Cheng
91e2390818 A spill kills the register being stored. But it is later being reused by spiller, its live range has to be extended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34517 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 01:13:26 +00:00
Evan Cheng
49dd06461a First potential client of register scavenger. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 01:11:26 +00:00
Evan Cheng
76d7e76c15 Use findRegisterUseOperand to find a kill of particular register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34512 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 01:04:26 +00:00
Evan Cheng
96fa612373 Initial check in of register scavenger. Its only current functionality is tracking live registers per MBB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34511 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 01:01:19 +00:00
Evan Cheng
30cac02a92 Remove unnecessary isKill properties if a live range has been lengthened due to coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34503 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 23:03:39 +00:00
Jim Laskey
774b864f0e Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34502 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 18:51:19 +00:00
Jim Laskey
5df3ad8b7a Missing end of abbreviations - correction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34501 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 18:48:52 +00:00
Jim Laskey
7b1b39d9bc Missing end of abbreviations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 18:22:42 +00:00
Jim Laskey
9bb3c93af2 Need to init. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34499 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 18:04:49 +00:00
Jim Laskey
033c9715d9 Remove isAccessable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34497 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:39:03 +00:00
Jim Laskey
a4e7cd947e Use exception flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34496 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:22:15 +00:00
Jim Laskey
f9b1cbc80d Remove assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34494 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:12:17 +00:00
Jim Laskey
cbfdb7b871 Tighten up error checking of args. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34493 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:10:05 +00:00
Jim Laskey
735b6f8cc3 Handle lowering invoke to call correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34492 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 15:38:06 +00:00
Jim Laskey
2bc210d99f Simplify lowering and selection of exception ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34491 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 15:37:19 +00:00
Jim Laskey
b180aa1753 Selection and lowering for exception handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34481 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:53:45 +00:00
Jim Laskey
bacd304463 Exception handling support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34479 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:48:45 +00:00
Jim Laskey
bda9b0ec7b Add support for changes in DwarfWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34478 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:47:38 +00:00
Jim Laskey
02b3f5ec4a Make branch folding behave in the presence of landing pads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34476 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:42:20 +00:00
Jim Laskey
9b25b8ca24 Allow for live in registers for eh landing pads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34475 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:41:17 +00:00
Jim Laskey
59667fe203 Add structures used for collecting eh information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34473 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:38:31 +00:00
Evan Cheng
788fb1c103 Out of bound reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34461 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 02:27:39 +00:00
Evan Cheng
957840b3e1 Use BitVector instead. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34460 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 02:22:03 +00:00
Evan Cheng
667089de04 Dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34435 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 01:29:10 +00:00
Evan Cheng
b371f457b0 Re-apply my liveintervalanalysis changes. Now with PR1207 fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34428 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-19 21:49:54 +00:00
Reid Spencer
a284cbf667 For PR1207: 
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34399 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-19 03:20:00 +00:00
Evan Cheng
aa7976199c - Changes how function livein's are handled, they now have a start index of 0. 
- When coalescing a copy MI, if its destination is "dead", propagate the
  property to the source MI's destination if there are no intervening uses.
- Detect dead function live-in's and remove them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34383 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 11:15:40 +00:00
Evan Cheng
e1fd6828af Do not add livein's to entry MBB twice. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34382 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 11:11:27 +00:00
Evan Cheng
795d9509d5 Added removeLiveIn. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34381 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 11:10:48 +00:00
Evan Cheng
094e3e553f Added findRegisterDefOperand(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34380 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 11:10:18 +00:00
Evan Cheng
e15764f28f - Use MRegister::regsOverlap(). 
- Allow LiveVariables to track liveness of more registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34379 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 11:09:47 +00:00
Chris Lattner
95ad943ed5 print target nodes nicely 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34369 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 06:38:37 +00:00
Chris Lattner
9ff6ee85fe Implement i/n/s constraints correctly. This fixes 
test/CodeGen/PowerPC/2007-02-16-InlineAsmNConstraint.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34368 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 06:00:35 +00:00
Dale Johannesen
6b896cec8b Fixes PR 1200 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34359 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 00:44:34 +00:00
Evan Cheng
bdf44b929f Print <dead> def operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34343 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-16 09:49:18 +00:00