Commit Graph

733 Commits

Author SHA1 Message Date
Reid Spencer 9857229aba Add the README files to the distribution.
llvm-svn: 27651
2006-04-13 06:39:24 +00:00
Nate Begeman 3f9c17906f Disable switch lowering for targets based on the selection dag isel,
letting the code generator handle them directly.

llvm-svn: 27539
2006-04-08 19:46:55 +00:00
Jim Laskey 2d7298c362 Foundation for call frame information.
llvm-svn: 27491
2006-04-07 16:34:46 +00:00
Jim Laskey d1aa1638c6 Expose base register for DwarfWriter. Refactor code accordingly.
llvm-svn: 27225
2006-03-28 13:48:33 +00:00
Jim Laskey fa53b276d0 Translate llvm target registers to dwarf register numbers properly.
llvm-svn: 27180
2006-03-27 20:18:45 +00:00
Nate Begeman ed728c1291 SelectionDAGISel can now natively handle Switch instructions, in the same
manner that the LowerSwitch LLVM to LLVM pass does: emitting a binary
search tree of basic blocks.  The new approach has several advantages:
it is faster, it generates significantly smaller code in many cases, and
it paves the way for implementing dense switch tables as a jump table by
handling switches directly in the instruction selector.

This functionality is currently only enabled on x86, but should be safe for
every target.  In anticipation of making it the default, the cfg is now
properly updated in the x86, ppc, and sparc select lowering code.

llvm-svn: 27156
2006-03-27 01:32:24 +00:00
Chris Lattner 5d70a7c4a5 #include Intrinsics.h into all dag isels
llvm-svn: 27109
2006-03-25 06:47:10 +00:00
Jim Laskey bb84eae239 D'oh - should be even numbered.
llvm-svn: 27088
2006-03-24 22:48:02 +00:00
Jim Laskey f0729b4067 Add dwarf register numbering to register data.
llvm-svn: 27081
2006-03-24 21:15:58 +00:00
Jim Laskey 3c43609f1f Add support to locate local variables in frames (early version.)
llvm-svn: 26994
2006-03-23 18:12:57 +00:00
Chris Lattner 6f95ab7abb Eliminate IntrinsicLowering from TargetMachine.
Make the CBE and V9 backends create their own, since they're the only ones that use it.

llvm-svn: 26974
2006-03-23 05:43:16 +00:00
Nate Begeman bb01d4f272 Remove BRTWOWAY*
Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.

llvm-svn: 26814
2006-03-17 01:40:33 +00:00
Chris Lattner e363fdf318 Add support for 'special' llvm globals like debug info and static ctors/dtors.
llvm-svn: 26628
2006-03-09 06:14:35 +00:00
Chris Lattner 9c7f50376a Copysign needs to be expanded everywhere. Note that Alpha and IA64 should
implement copysign as a native op if they have it.

llvm-svn: 26541
2006-03-05 05:08:37 +00:00
Chris Lattner ec185f7843 Don't print constant initializers, they may span lines now.
llvm-svn: 26403
2006-02-27 20:09:23 +00:00
Chris Lattner 747cf60696 The HasNoV9 hack isn't needed here, now that tblgen knows that CustomDAGSchedInserter
instructions are expensive.

llvm-svn: 26298
2006-02-21 18:04:32 +00:00
Nate Begeman 5965bd19f8 kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBC
and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.

llvm-svn: 26255
2006-02-17 05:43:56 +00:00
Nate Begeman 8a77efe4f7 Rework the SelectionDAG-based implementations of SimplifyDemandedBits
and ComputeMaskedBits to match the new improved versions in instcombine.
Tested against all of multisource/benchmarks on ppc.

llvm-svn: 26238
2006-02-16 21:11:51 +00:00
Chris Lattner 6db414e8de Sparc actually *DOES* have a directive for emitting zeros. In fact, it requires
it, because this:

.bss
X:
.byte 0

results in the assembler warning: "initialization in bss segment".  Annoying.

llvm-svn: 26204
2006-02-15 07:07:14 +00:00
Chris Lattner a9d0b5800a Fix SingleSource/Regression/C/2004-08-12-InlinerAndAllocas.c on Sparc.
The ABI specifies that there is a register save area at the bottom of the
stack, which means the actual used pointer needs to be an offset from
the subtracted value.

llvm-svn: 26202
2006-02-15 06:41:34 +00:00
Chris Lattner 62c3484e43 Switch targets over to using SelectionDAG::getCALLSEQ_START to create
CALLSEQ_START nodes.

llvm-svn: 26143
2006-02-13 09:00:43 +00:00
Chris Lattner fcb8a3aa76 Use the auto-generated call matcher. Remove a broken impl of the frameaddr/returnaddr
intrinsics.

Autogen frameindex matcher

llvm-svn: 26107
2006-02-10 07:35:42 +00:00
Chris Lattner 0c4dea4cb2 Update to new-style flags usage, simplifying the .td file
llvm-svn: 26106
2006-02-10 06:58:25 +00:00
Chris Lattner 4c0bd5bcdf Done
llvm-svn: 26091
2006-02-09 20:00:19 +00:00
Chris Lattner 5259aa1c86 Enable LSR by default for SPARC: it is a clear win.
llvm-svn: 26090
2006-02-09 19:59:55 +00:00
Evan Cheng d1b82d8db0 Match getTargetNode() changes (now return SDNode* instead of SDOperand).
llvm-svn: 26085
2006-02-09 07:17:49 +00:00
Chris Lattner c75d5b093d add an option to turn on LSR.
llvm-svn: 26080
2006-02-09 05:06:36 +00:00
Chris Lattner f6190821da Adjust to MachineConstantPool interface change: instead of keeping a
value/alignment pair for each constant, keep a value/offset pair.

llvm-svn: 26078
2006-02-09 04:46:04 +00:00
Evan Cheng 6dc90ca172 Change Select() from
SDOperand Select(SDOperand N);
to
void Select(SDOperand &Result, SDOperand N);

llvm-svn: 26067
2006-02-09 00:37:58 +00:00
Chris Lattner 463fa70eaa Fix the Sparc backend with Evan's recent tblgen changes
llvm-svn: 26009
2006-02-05 08:35:50 +00:00
Evan Cheng a28b764886 Use SelectRoot() as the entry to any tblgen based isel.
llvm-svn: 25998
2006-02-05 06:51:51 +00:00
Chris Lattner a3e5b2c61c remove V8 reference
llvm-svn: 25991
2006-02-05 06:32:59 +00:00
Chris Lattner 158e1f519c Rename SPARC V8 target to be the LLVM SPARC target.
llvm-svn: 25985
2006-02-05 05:50:24 +00:00
Brian Gaeke 94e95d2b3e Great renaming: Sparc --> SparcV9
llvm-svn: 11826
2004-02-25 18:44:15 +00:00
Brian Gaeke 10a32da382 FunctionLiveVarInfo.h moved: include/llvm/CodeGen -> lib/Target/Sparc/LiveVar
llvm-svn: 11804
2004-02-24 19:46:00 +00:00
Alkis Evlogimenos 8358cc573d Move MOTy::UseType enum into MachineOperand. This eliminates the
switch statements in the constructors and simplifies the
implementation of the getUseType() member function. You will have to
specify defs using MachineOperand::Def instead of MOTy::Def though
(similarly for Use and UseAndDef).

llvm-svn: 11715
2004-02-22 19:23:26 +00:00
Chris Lattner 76b2ff4ded Adjustments to support the new ConstantAggregateZero class
llvm-svn: 11474
2004-02-15 05:55:15 +00:00
Alkis Evlogimenos 5a92240270 Use newly added next() and prior() utility functions.
llvm-svn: 11430
2004-02-14 01:18:34 +00:00
Alkis Evlogimenos 8cdd0215bf Remove getAllocatedRegNum(). Use getReg() instead.
llvm-svn: 11393
2004-02-13 21:01:20 +00:00
Chris Lattner cbf0667743 Squish warning
llvm-svn: 11375
2004-02-13 16:14:50 +00:00
Brian Gaeke c07b64f3cb Remove this MachineOpCodeFlags assertion - its test can never be false.
llvm-svn: 11342
2004-02-12 04:01:07 +00:00
Alkis Evlogimenos 80da865f77 Change MachineBasicBlock's vector of MachineInstr pointers into an
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.

llvm-svn: 11340
2004-02-12 02:27:10 +00:00
Brian Gaeke b22186adf0 MachineInstr::getOpCode() --> getOpcode() in SPARC back-end.
llvm-svn: 11335
2004-02-11 20:47:34 +00:00
Alkis Evlogimenos 8f4142616d Increase constness.
llvm-svn: 11322
2004-02-11 17:55:09 +00:00
Alkis Evlogimenos 2f21547208 Remove assert as the only integer registers on the sparc are physical.
llvm-svn: 11317
2004-02-11 06:04:51 +00:00
Alkis Evlogimenos fcb99fe370 Fix previous broken commit. A MachineOperand may have opType ==
MO_VirtualRegister but if the register number is one of a physical
register is it considered as a physical register.

llvm-svn: 11315
2004-02-11 05:55:00 +00:00
Alkis Evlogimenos adcc14d96a Remove assert as it is meaningless. MachineOperands can be tagged as
MO_VirtualRegister but actually be representing a physical register.

llvm-svn: 11310
2004-02-11 04:52:30 +00:00
Chris Lattner 1cb6d2697d Stop using this method
llvm-svn: 11282
2004-02-10 21:12:06 +00:00
Chris Lattner 2d5feb5e04 Remvoe use of MO.isVirtualRegister(), turn an assertion into an assert()
llvm-svn: 11280
2004-02-10 20:47:24 +00:00
Chris Lattner 2aea68ccfd Remove use of isPhysicalRegister
llvm-svn: 11277
2004-02-10 20:35:42 +00:00