Chris Lattner
edda0e5d4f
Implement PR135, lazy emission of global variables
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llvm-svn: 10549
2003-12-20 03:36:47 +00:00
Chris Lattner
214005e5fb
Simple refactorings to prepare for lazy global emission
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Also, add a stat for the number of globals emitted
llvm-svn: 10547
2003-12-20 02:45:37 +00:00
Chris Lattner
d3676d0774
A minor cleanup for better encapsulation
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llvm-svn: 10545
2003-12-20 02:03:14 +00:00
Chris Lattner
cd8f92bc62
Cleanup the JIT as per PR176. This renames the VM class to JIT, and merges the
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VM.cpp and JIT.cpp files into JIT.cpp. This also splits some nasty code out
into TargetSelect.cpp so that people hopefully won't notice it. :)
llvm-svn: 10544
2003-12-20 01:46:27 +00:00
Chris Lattner
32658dbaf3
Update for changes in the JIT
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llvm-svn: 10543
2003-12-20 01:45:17 +00:00
Chris Lattner
1cb1efedb3
Rip JIT specific stuff out of TargetMachine, as per PR176
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llvm-svn: 10542
2003-12-20 01:22:19 +00:00
Chris Lattner
e0021ba353
Fix ADCE/2003-12-19-MergeReturn.llx
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llvm-svn: 10539
2003-12-19 09:08:34 +00:00
Chris Lattner
399d5ad32e
Remove the wierd "Operands" loop, by traversing basicblocks in reverse order
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llvm-svn: 10536
2003-12-19 08:18:16 +00:00
Chris Lattner
68db81e684
Implement LICM/sink_multiple.ll, by sinking all possible instructions in the
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loop before hoisting any.
llvm-svn: 10534
2003-12-19 07:22:45 +00:00
Chris Lattner
a0b16fb57d
Generalize a special case to fix PR187
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llvm-svn: 10531
2003-12-19 06:27:08 +00:00
Chris Lattner
e0e1fe84e8
Factor code out into the Utils library
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llvm-svn: 10530
2003-12-19 05:58:40 +00:00
Chris Lattner
c1952a1fd6
Add new function
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llvm-svn: 10529
2003-12-19 05:56:28 +00:00
Alkis Evlogimenos
9181e0ab5b
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
Chris Lattner
c984af2771
Prune some #includes
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Add a statistic for # reloads
llvm-svn: 10518
2003-12-18 20:25:31 +00:00
John Criswell
3304c39869
Reverted back to previous revision - this was previously merged
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according to the CVS log messages.
llvm-svn: 10517
2003-12-18 17:19:19 +00:00
John Criswell
0659bb0c4a
Merged in RELEASE_11.
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llvm-svn: 10516
2003-12-18 16:43:17 +00:00
Alkis Evlogimenos
f6e9dd4942
Modify linear scan register allocator to use the two-address
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instruction pass. This also fixes all remaining bugs for this new
allocator to pass all tests under test/Programs.
llvm-svn: 10515
2003-12-18 13:15:02 +00:00
Alkis Evlogimenos
9bb0ad1a37
Fix bug in reserved registers. DH actually aliases DX and EDX which
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are not reserved registers.
llvm-svn: 10514
2003-12-18 13:12:18 +00:00
Alkis Evlogimenos
48d20cb328
Modify local register allocator to use the two-address instruction pass.
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llvm-svn: 10513
2003-12-18 13:08:52 +00:00
Alkis Evlogimenos
90aeecae42
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
Alkis Evlogimenos
befef566f6
Rename LiveIntervals::expired() to LiveIntervals::expiredAt().
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llvm-svn: 10511
2003-12-18 08:56:11 +00:00
Alkis Evlogimenos
382bfbffeb
When a variable is killed and redifined in a basic block only one
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killing instruction is tracked. This causes the LiveIntervals to
create bogus intervals. The workaound is to add a range to the
interval from the redefinition to the end of the basic block.
llvm-svn: 10510
2003-12-18 08:53:43 +00:00
Alkis Evlogimenos
8e2fcc7d79
Handle multiple virtual register definitions gracefully.
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Move some of the longer LiveIntervals::Interval method out of the
header and add debug information to them. Fix bug and simplify range
merging code.
llvm-svn: 10509
2003-12-18 08:48:48 +00:00
Chris Lattner
17122cbe7b
When we delete instructions from the loop, make sure to remove them from the
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AliasSetTracker as well.
llvm-svn: 10507
2003-12-18 08:12:32 +00:00
Chris Lattner
457dd0b6c7
Add a new AliassetTracker::remove method. Because we need to be able to remove
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a pointer from an AliasSet, maintain the pointer values on a doubly linked
list instead of a singly linked list, to permit efficient removal from the
middle of the list.
llvm-svn: 10506
2003-12-18 08:11:56 +00:00
Misha Brukman
adac37e69b
* Converted C-style comments to C++
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* Doxygenified comments
* Reordered #includes
llvm-svn: 10503
2003-12-17 22:08:20 +00:00
Misha Brukman
61860852dc
Reordered #includes.
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llvm-svn: 10502
2003-12-17 22:06:28 +00:00
Misha Brukman
9f2f87bb6b
Doxygenified some comments, reduced extraneous space.
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llvm-svn: 10501
2003-12-17 22:06:08 +00:00
Misha Brukman
fe533cc4e6
Reorganized the Sparc backend to be more modular -- each different
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implementation of a Target{RegInfo, InstrInfo, Machine, etc} now has a separate
header and a separate implementation file.
This means that instead of a massive SparcInternals.h that forces a
recompilation of the whole target whenever a minor detail is changed, you should
only recompile a few files.
Note that SparcInternals.h is still around; its contents should be minimized.
llvm-svn: 10500
2003-12-17 22:04:00 +00:00
Brian Gaeke
81d68517ea
Make getObjectType() smarter about ranlibbed Mac OS X archives.
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llvm-svn: 10493
2003-12-17 00:18:18 +00:00
Chris Lattner
062d3a4ab5
Fix for PR185 & IndVarsSimplify/2003-12-15-Crash.llx
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llvm-svn: 10473
2003-12-15 17:34:02 +00:00
Alkis Evlogimenos
657eb40294
Change preserve all claim to just preserve live variables and phielimination.
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llvm-svn: 10469
2003-12-15 04:55:38 +00:00
Chris Lattner
5fc36a496f
Refactor code just a little bit, allowing us to implement TailCallElim/return_constant.ll
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llvm-svn: 10467
2003-12-14 23:57:39 +00:00
Chris Lattner
9047cde657
Finegrainify namespacification
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llvm-svn: 10465
2003-12-14 23:25:48 +00:00
Chris Lattner
2fdf5e32aa
Finegrainify namespacification
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llvm-svn: 10464
2003-12-14 21:35:53 +00:00
Chris Lattner
30ae898eb7
Finegrainify namespacification
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Make the Timer code give correct user/system/user+system times when -track-memory is enabled
llvm-svn: 10463
2003-12-14 21:27:33 +00:00
Alkis Evlogimenos
29127b8825
Change interface of MachineOperand as follows:
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a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
b) add isUse(), isDef()
c) rename opHiBits32() to isHiBits32(),
opLoBits32() to isLoBits32(),
opHiBits64() to isHiBits64(),
opLoBits64() to isLoBits64().
This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.
llvm-svn: 10461
2003-12-14 13:24:17 +00:00
Alkis Evlogimenos
b96436e679
Change preserve all claim to just preserve live variables and phielimination.
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llvm-svn: 10460
2003-12-14 10:14:23 +00:00
Chris Lattner
0d3a8b1cb4
Do not promote volatile alias sets into registers
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llvm-svn: 10458
2003-12-14 04:52:31 +00:00
Chris Lattner
a9d238d598
Finegrainify namespacification
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Add capability to represent volatile AliasSet's
Propagate this information from loads&stores into the aliassets
llvm-svn: 10457
2003-12-14 04:52:11 +00:00
Alkis Evlogimenos
d58f58b351
When reserving a preallocated register spill the aliases of this
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register too.
llvm-svn: 10450
2003-12-13 11:58:10 +00:00
Alkis Evlogimenos
f84f86137b
Ignore non-allocatable physical registers in live interval analysis.
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llvm-svn: 10449
2003-12-13 11:11:02 +00:00
Alkis Evlogimenos
18bf6b5ad7
Expire any active intervals left when register allocation is done.
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llvm-svn: 10448
2003-12-13 05:50:19 +00:00
Alkis Evlogimenos
225fc9c6db
Add instruction numbers to debugging output.
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llvm-svn: 10447
2003-12-13 05:48:57 +00:00
Alkis Evlogimenos
5ca15c8f5e
Add a floating point killer pass. This pass runs before register
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allocaton on the X86 to add information to the machine code denoting
that our floating point stackifier cannot handle virtual point
register that are alive across basic blocks. This pass adds an
implicit def of all virtual floating point register at the end of each
basic block.
llvm-svn: 10446
2003-12-13 05:36:22 +00:00
Alkis Evlogimenos
2a41fcbef3
Handle explicit physical register defs.
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llvm-svn: 10445
2003-12-13 05:26:39 +00:00
Alkis Evlogimenos
6e511754e5
Remove unecessary if statements when looping on ImplicitDefs.
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llvm-svn: 10444
2003-12-13 01:20:58 +00:00
John Criswell
93c209e4ac
Modified cast so that it converts the int to a long before casting to
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a pointer. This evades a warning emitted by GCC when we cast from
unsigned int (32 bit) to void * (64 bit) on SparcV9.
llvm-svn: 10435
2003-12-12 19:57:48 +00:00
Brian Gaeke
84101bcdb8
Dynamically get the right-sized member of a GenericValue to hold a size_t, and
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use it to return the result of strlen.
llvm-svn: 10433
2003-12-12 15:38:06 +00:00
Chris Lattner
f58e098889
Implement the ExecutionEngine::getPointerToFunctionOrStub by forwarding the
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request on to the TargetMachine if it supports the getJITStubForFunction method
llvm-svn: 10431
2003-12-12 07:12:02 +00:00