fb19f9402b
Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating
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the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.
Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.
This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.
llvm-svn: 52943
2008-07-01 00:05:16 +00:00
03553bb59a
Add option to commuteInstruction() which forces it to create a new (commuted) instruction.
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llvm-svn: 52308
2008-06-16 07:33:11 +00:00
ae84bbdbed
Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
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llvm-svn: 49809
2008-04-16 20:10:13 +00:00
a7cca362af
detabify llvm, patch by Mike Stump!
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llvm-svn: 48577
2008-03-20 01:22:40 +00:00
c6c48fca74
Change the "enable/disable" mechanism so that we can enable PPC register
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scavenging for 32-bit and 64-bit separately.
llvm-svn: 48186
2008-03-10 22:49:16 +00:00
514b3ed536
fix 80 col violations.
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llvm-svn: 48166
2008-03-10 18:55:53 +00:00
708784ea4f
Stylistic modifications. No functionality changes.
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llvm-svn: 48158
2008-03-10 17:46:45 +00:00
b1de7a35f9
Add description of individual bits in CR. This fix PR1765.
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llvm-svn: 48143
2008-03-10 14:12:10 +00:00
1af20ad336
Use a command-line option to turn register scavenging on/off for PPC.
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llvm-svn: 47915
2008-03-04 23:13:51 +00:00
632ea65072
This is the initial check-in for adding register scavenging to PPC. (Currently,
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PPC-64 doesn't work.) This also lowers the spilling of the CR registers so that
it uses a register other than the default R0 register (the scavenger scrounges
for one). A significant part of this patch fixes how kill information is
handled.
llvm-svn: 47863
2008-03-03 22:19:16 +00:00
244183ef0d
commuteInstr() can now commute non-ssa machine instrs.
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llvm-svn: 47043
2008-02-13 02:46:49 +00:00
3b3286d4bc
It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned.
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llvm-svn: 46893
2008-02-08 21:20:40 +00:00
f0f438a517
remove MachineOpCode typedef.
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llvm-svn: 45679
2008-01-07 02:48:55 +00:00
2a3be7bb6c
Move even more functionality from MRegisterInfo into TargetInstrInfo.
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Some day I'll get it all moved over...
llvm-svn: 45672
2008-01-07 01:35:02 +00:00
eee14601b1
Move some more instruction creation methods from RegisterInfo into InstrInfo.
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llvm-svn: 45484
2008-01-01 21:11:32 +00:00
b0fb17fd34
Fix a bug in my previous patch: refer to the impl not the pure virtual version. It's unclear why gcc would ever compile this...
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llvm-svn: 45476
2008-01-01 01:05:34 +00:00
25568e4cef
Fix a problem where lib/Target/TargetInstrInfo.h would include and use
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a header file from libcodegen. This violates a layering order: codegen
depends on target, not the other way around. The fix to this is to
split TII into two classes, TII and TargetInstrInfoImpl, which defines
stuff that depends on libcodegen. It is defined in libcodegen, where
the base is not.
llvm-svn: 45475
2008-01-01 01:03:04 +00:00
7a73ae9a86
Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the
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Machine-level API cleanup instigated by Chris.
llvm-svn: 45470
2007-12-31 06:32:00 +00:00
a5bb370aa4
Add new shorter predicates for testing machine operands for various types:
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e.g. MO.isMBB() instead of MO.isMachineBasicBlock(). I don't plan on
switching everything over, so new clients should just start using the
shorter names.
Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(),
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.
llvm-svn: 45464
2007-12-30 23:10:15 +00:00
6005589faf
More cleanups for MachineOperand:
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- Eliminate the static "print" method for operands, moving it
into MachineOperand::print.
- Change various set* methods for register flags to take a bool
for the value to set it to. Remove unset* methods.
- Group methods more logically by operand flavor in MachineOperand.h
llvm-svn: 45461
2007-12-30 21:56:09 +00:00
5c4637816e
Use MachineOperand::getImm instead of MachineOperand::getImmedValue. Likewise setImmedValue -> setImm
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llvm-svn: 45453
2007-12-30 20:49:49 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
e2f23a3abf
Add lengthof and endof templates that hide a lot of sizeof computations.
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Patch by Sterling Stein!
llvm-svn: 41758
2007-09-07 04:06:50 +00:00
c68554683d
Handle blocks with 2 unconditional branches in AnalyzeBranch.
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llvm-svn: 37571
2007-06-13 17:59:52 +00:00
5514bbef46
Add a utility routine to check for unpredicated terminator instruction.
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llvm-svn: 37528
2007-06-08 21:59:56 +00:00
fc94eb66d2
BlockHasNoFallThrough() now returns true if block ends with a return instruction.
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llvm-svn: 37266
2007-05-21 18:44:17 +00:00
99be49dd9b
RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted.
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llvm-svn: 37192
2007-05-18 00:05:48 +00:00
8cd224e81c
Relex assertions to account for additional implicit def / use operands.
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llvm-svn: 36430
2007-04-25 07:12:14 +00:00
9bfb1e1f29
What should be the last unnecessary <iostream>s in the library.
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llvm-svn: 32333
2006-12-07 22:21:48 +00:00
20350c4025
Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead
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of opcode and number of operands.
llvm-svn: 31947
2006-11-27 23:37:22 +00:00
be9377a1e3
convert PPC::BCC to use the 'pred' operand instead of separate predicate
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value and CR reg #. This requires swapping the order of these everywhere
that touches BCC and requires us to write custom matching logic for
PPCcondbranch :(
llvm-svn: 31835
2006-11-17 22:37:34 +00:00
e0263794f4
rename PPC::COND_BRANCH to PPC::BCC
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llvm-svn: 31834
2006-11-17 22:14:47 +00:00
8c6a41ea12
start using PPC predicates more consistently.
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llvm-svn: 31833
2006-11-17 22:10:59 +00:00
dc2c8748a7
Properly transfer kill / dead info.
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llvm-svn: 31765
2006-11-15 20:58:11 +00:00
dbd3d294e6
Matches MachineInstr changes.
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llvm-svn: 31712
2006-11-13 23:36:35 +00:00
113f7470e6
implement the BlockHasNoFallThrough hook
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llvm-svn: 31264
2006-10-28 17:35:02 +00:00
23f22de26f
Implement support for branch reversal, fix a bug in branch analysis.
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This provides stuff like:
cmpw cr0, r15, r29
mr r14, r15
- bge cr0, LBB3_111 ;bb656
- b LBB3_90 ;bb501
+ blt cr0, LBB3_90 ;bb501
LBB3_111: ;bb656
lwz r18, 68(r1)
which is particularly good for dispatch group formation.
llvm-svn: 31101
2006-10-21 06:03:11 +00:00
d881660366
Simplify code, no functionality change
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llvm-svn: 31097
2006-10-21 05:42:09 +00:00
94e04442eb
implement support for inserting a cond branch
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llvm-svn: 31096
2006-10-21 05:36:13 +00:00
a61f0105bd
add support for inserting an uncond branch
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llvm-svn: 31003
2006-10-17 18:06:55 +00:00
a47294ed7a
implement branch inspection/modification methods.
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llvm-svn: 30946
2006-10-13 21:21:17 +00:00
71227c23b1
In 64-bit mode, 64-bit GPRs are callee saved, not 32-bit ones.
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llvm-svn: 29096
2006-07-11 00:48:23 +00:00
52a956da52
Rename OR4 -> OR. Move some PPC64-specific stuff to the 64-bit file
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llvm-svn: 28889
2006-06-20 23:18:58 +00:00
49cadab385
Implement the getPointerRegClass method, which is required for the ptr_rc
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magic to work.
llvm-svn: 28847
2006-06-17 00:01:04 +00:00
10d6341618
Move some methods out of MachineInstr into MachineOperand
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llvm-svn: 28102
2006-05-04 17:52:23 +00:00
91400bd413
teach the ppc backend how to spill/reload vector regs
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llvm-svn: 26806
2006-03-16 22:24:02 +00:00
fd9f3e8ed3
Add support for copying registers. still needed: spilling and reloading them
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llvm-svn: 26800
2006-03-16 20:03:58 +00:00
ea79d9fd73
implement TII::insertNoop
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llvm-svn: 26562
2006-03-05 23:49:55 +00:00
4efb328926
add 64b gpr store to the possible list of isStoreToStackSlot opcodes.
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llvm-svn: 25916
2006-02-02 21:07:50 +00:00
c327d71e06
implement isStoreToStackSlot for PPC
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llvm-svn: 25914
2006-02-02 20:16:12 +00:00
bb53acd03c
Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo,a far more logical place. Other methods should also be moved if anyoneis interested. :)
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llvm-svn: 25913
2006-02-02 20:12:32 +00:00
5f37623218
teach ppc backend these are copies
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llvm-svn: 23813
2005-10-19 01:50:36 +00:00
0b71e007ef
First bits of 64 bit PowerPC stuff, currently disabled. A lot of this is
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purely mechanical.
llvm-svn: 23778
2005-10-18 00:28:58 +00:00
6cca84e43c
More PPC32 -> PPC changes, as well as merging some classes that were
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redundant after the change.
llvm-svn: 23759
2005-10-16 05:39:50 +00:00
6f3b954662
Rename PPC32*.h to PPC*.h
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This completes the grand PPC file renaming
llvm-svn: 23745
2005-10-14 23:59:06 +00:00
Dan Gohman