Evan Cheng
58ea935f6f
Add a variant of foldMemoryOperand to fold any load / store, not just load / store from / to stack slots.
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llvm-svn: 41597
2007-08-30 05:52:20 +00:00
Christopher Lamb
e0c9bd8d2e
Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there.
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llvm-svn: 41005
2007-08-10 21:11:55 +00:00
Christopher Lamb
7bef240f69
Have register info provide the inverse mapping of register->superregisters. PR1350
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llvm-svn: 40519
2007-07-26 08:01:58 +00:00
Anton Korobeynikov
5635277c36
Long live the exception handling!
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This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.
In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.
After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be
thought as 'finished': I expect many small and not so small glitches
everywhere.
llvm-svn: 39855
2007-07-14 14:06:15 +00:00
Evan Cheng
30adb50aaf
Add comment.
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llvm-svn: 37741
2007-06-26 21:19:07 +00:00
Evan Cheng
ac10d44736
Add immediate sub-registers.
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llvm-svn: 37738
2007-06-26 20:59:16 +00:00
Christopher Lamb
68017d151b
Add support to tablegen for specifying subregister classes on a per register class basis.
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llvm-svn: 37572
2007-06-13 22:20:15 +00:00
Evan Cheng
65f0ba62d5
Add SPAdj parameter to account for call frame setup SP adjustment.
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llvm-svn: 36623
2007-05-01 08:58:27 +00:00
Nate Begeman
767ee95d29
llvm bug #1350 , parts 1, 2, and 3.
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llvm-svn: 36618
2007-05-01 05:57:02 +00:00
Evan Cheng
34e61fc3cd
Added hook hasReservedCallFrame(). It returns true if the call frame is
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included as part of the stack frame.
llvm-svn: 36606
2007-05-01 00:47:46 +00:00
Evan Cheng
46096a692c
Test if a register is sub- or super-register of another.
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llvm-svn: 36433
2007-04-25 07:24:50 +00:00
Evan Cheng
05a82b68e8
Add super-register set.
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llvm-svn: 36295
2007-04-21 00:54:06 +00:00
Evan Cheng
1835371d44
Add sub-registers set accessor.
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llvm-svn: 36282
2007-04-20 21:28:05 +00:00
Evan Cheng
9ade37c2f1
Add sub-register sets.
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llvm-svn: 36277
2007-04-20 21:11:22 +00:00
Evan Cheng
023342b277
Change getAllocatableSet() so it returns allocatable registers for a specific register class.
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llvm-svn: 36215
2007-04-17 20:23:34 +00:00
Evan Cheng
41f4f032ee
Added MRegisterInfo hook to re-materialize an instruction.
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llvm-svn: 35205
2007-03-20 08:09:38 +00:00
Evan Cheng
b0c0d22f30
Minor interface change.
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llvm-svn: 34967
2007-03-06 10:05:14 +00:00
Evan Cheng
db591ecaa8
Make requiresRegisterScavenging determination on a per MachineFunction basis.
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llvm-svn: 34711
2007-02-28 00:59:19 +00:00
Evan Cheng
ee2e5de4fb
MRegisterInfo disowns RegScavenger. It's immutable.
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llvm-svn: 34706
2007-02-28 00:17:36 +00:00
Evan Cheng
11d5b762b9
Let MRegisterInfo owns RegScavenger.
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llvm-svn: 34689
2007-02-27 21:08:07 +00:00
Evan Cheng
df6be7d4fc
Temporay hook to enable register scavening for specific targets only.
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llvm-svn: 34513
2007-02-23 01:07:04 +00:00
Jim Laskey
b57ee1fc37
Simplify lowering and selection of exception ops.
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llvm-svn: 34488
2007-02-22 14:56:36 +00:00
Jim Laskey
6a937ad320
Support to provide exception and selector registers.
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llvm-svn: 34482
2007-02-21 22:54:50 +00:00
Evan Cheng
e4ab9c032b
Re-apply my liveintervalanalysis changes. Now with PR1207 fixes.
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llvm-svn: 34428
2007-02-19 21:49:54 +00:00
Reid Spencer
b27fcf3482
For PR1207:
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Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.
llvm-svn: 34399
2007-02-19 03:20:00 +00:00
Evan Cheng
8f7896bacc
- Added regsOverlap() to test if two registers overlap. Or in case they are
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virtual registers, test if they the same.
- Added a virtual method to return target specific reserved registers, e.g. SP.
llvm-svn: 34375
2007-02-17 11:04:35 +00:00
Evan Cheng
28eaad250f
Use BitVector instead of vector<bool> which can be extremely slow.
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llvm-svn: 34302
2007-02-15 05:59:24 +00:00
Chris Lattner
a24a3aaa94
rename DenseMap to IndexedMap.
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llvm-svn: 33749
2007-02-01 05:32:05 +00:00
Evan Cheng
b64363a085
Added a MRegisterInfo hook that tells PEI the target is responsible for
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rounding the stack frame to a multiple of stack alignment.
llvm-svn: 33504
2007-01-25 22:12:41 +00:00
Jim Laskey
a67f14502d
Repair debug frames as a prelude to eh_frames. Switched to using MachineMoves
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by value so that clean up is less confusing (these vectors tend to be small.)
llvm-svn: 33488
2007-01-24 18:45:13 +00:00
Evan Cheng
d9d93832b0
hasFP() is now a virtual method of MRegisterInfo.
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llvm-svn: 33455
2007-01-23 00:57:47 +00:00
Evan Cheng
82d9b2077b
Fix naming inconsistency: calleesave -> calleesaved.
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llvm-svn: 32821
2007-01-02 21:30:17 +00:00
Evan Cheng
3eb79afad9
Add virtual method spillCalleeSaveRegisters() and restoreCalleeSaveRegisters()
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to MRegisterInfo. These allow the target to issue instructions to spill and
restore callee saved registers in case where individual stores / loads aren't
the correct / profitable choice.
llvm-svn: 32820
2007-01-02 20:55:17 +00:00
Evan Cheng
51144ea51c
- Added a hook processFunctionBeforeCalleeSaveScn(). This is called by PEI just
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before it determines which callee-save registers are to be spilled. This allows
the target to make changes such as forcing certain physical registers to be
spilled.
- Modified comments. It's important to note the order of registers in the array
returns by getCalleeSaveRegs() determines the order of callee save spill code.
llvm-svn: 30635
2006-09-28 00:07:19 +00:00
Chris Lattner
a6ad752f16
update some comments
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llvm-svn: 29853
2006-08-24 00:21:32 +00:00
Chris Lattner
db290f7479
Constify some methods. Patch provided by Anton Vayvod, thanks!
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llvm-svn: 29756
2006-08-17 22:00:08 +00:00
Chris Lattner
8dd142b7b7
Doxygenify some methods.
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llvm-svn: 29592
2006-08-10 06:00:40 +00:00
Chris Lattner
55dad5c6ac
update comment
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llvm-svn: 29507
2006-08-03 18:57:28 +00:00
Jim Laskey
a67adda697
Use an enumeration to eliminate data relocations.
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llvm-svn: 29249
2006-07-21 20:57:35 +00:00
Evan Cheng
0675bc6539
Make sub- and super- register classes const.
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llvm-svn: 29200
2006-07-19 05:58:18 +00:00
Evan Cheng
e2cebf972d
Also add super- register class info.
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llvm-svn: 28222
2006-05-11 07:31:44 +00:00
Evan Cheng
e989b1534a
Added sub- register classes information.
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llvm-svn: 28196
2006-05-09 06:35:30 +00:00
Jim Laskey
54dc261ef6
Use existing information.
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llvm-svn: 27574
2006-04-10 23:09:19 +00:00
Jim Laskey
b93bc75add
Foundation for call frame information.
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llvm-svn: 27491
2006-04-07 16:34:46 +00:00
Jim Laskey
eb38a3e83a
Expose base register for DwarfWriter. Refactor code accordingly.
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llvm-svn: 27225
2006-03-28 13:48:33 +00:00
Jim Laskey
b4ff5c3e78
Tweak a comment.
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llvm-svn: 27066
2006-03-24 16:18:42 +00:00
Jim Laskey
cec9c18c62
Add support to locate local variables in frames (early version.)
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llvm-svn: 26994
2006-03-23 18:12:57 +00:00
Chris Lattner
ed45ad33b7
Make the LLVM headers "-ansi -pedantic -Wno-long-long" clean.
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Patch by Martin Partel!
llvm-svn: 26313
2006-02-22 16:23:43 +00:00
Chris Lattner
086fd0f862
expose the set of values types holdable in a regclass to clients
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llvm-svn: 26307
2006-02-21 23:51:58 +00:00
Chris Lattner
6684ba101f
Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo,
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a far more logical place. Other methods should also be moved if anyone
is interested. :)
llvm-svn: 25912
2006-02-02 20:11:55 +00:00