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39 Commits

Author SHA1 Message Date
Dan Gohman 6c1426308c Rename COPY_TO_SUBCLASS to COPY_TO_REGCLASS, and generalize 
it accordingly. Thanks to Jakob Stoklund Olesen for pointing
out how this might be useful.

llvm-svn: 68986
 2009-04-13 21:06:25 +00:00
Dan Gohman 60a446ab02 Add a new TargetInstrInfo MachineInstr opcode, COPY_TO_SUBCLASS. 
This will be used to replace things like X86's MOV32to32_.

Enhance ScheduleDAGSDNodesEmit to be more flexible and robust
in the presense of subregister superclasses and subclasses. It
can now cope with the definition of a virtual register being in
a subclass of a use.

Re-introduce the code for recording register superreg classes and
subreg classes. This is needed because when subreg extracts and
inserts get coalesced away, the virtual registers are left in
the correct subclass.

llvm-svn: 68961
 2009-04-13 15:38:05 +00:00
Chris Lattner 758ce7260d Fix shift overflow bug that would occur when a field was a full 32-bits 
in tblgen.  This is PR2827, thanks to Waldemar Knorr for tracking this
down.

llvm-svn: 57124
 2008-10-05 18:31:58 +00:00
Evan Cheng 038ca4aa0f Add instruction names as comments to InstBits entries. 
llvm-svn: 56275
 2008-09-17 06:29:52 +00:00
Evan Cheng 105c581135 Eliminate a compile time warning. 
llvm-svn: 55878
 2008-09-07 09:00:57 +00:00
Evan Cheng 34f3a962b0 Change getBinaryCodeForInstr prototype. First operand MachineInstr& should be const. Make corresponding changes. 
llvm-svn: 55623
 2008-09-02 06:51:36 +00:00
Dan Gohman fb19f9402b Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating 
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
Christopher Lamb d3d0ad3f58 Make insert_subreg a two-address instruction, vastly simplifying LowerSubregs pass. Add a new TII, subreg_to_reg, which is like insert_subreg except that it takes an immediate implicit value to insert into rather than a register. 
llvm-svn: 48412
 2008-03-16 03:12:01 +00:00
Evan Cheng 0e7b00d79f Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF. 
llvm-svn: 48380
 2008-03-15 00:03:38 +00:00
Evan Cheng efd142a920 SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc. 
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.

llvm-svn: 46659
 2008-02-02 04:07:54 +00:00
Chris Lattner 8adcd9f32e remove attributions from utils. 
llvm-svn: 45419
 2007-12-29 20:37:13 +00:00
Christopher Lamb cde0ee5221 Add target independent MachineInstr's to represent subreg insert/extract in MBB's. PR1350 
llvm-svn: 40518
 2007-07-26 07:48:21 +00:00
Jim Laskey 214c582002 Files missing from LABEL check in. 
llvm-svn: 33539
 2007-01-26 17:29:20 +00:00
Bill Wendling 9bfb1e1f29 What should be the last unnecessary <iostream>s in the library. 
llvm-svn: 32333
 2006-12-07 22:21:48 +00:00
Chris Lattner 78a403f90e Remove the isTwoAddress property from the CodeGenInstruction class. It should 
not be used for anything other than backwards compat constraint handling.

Add support for a new DisableEncoding property which contains a list of
registers that should not be encoded by the generated code emitter.  Convert
the codeemitter generator to use this, fixing some PPC JIT regressions.

llvm-svn: 31769
 2006-11-15 23:23:02 +00:00
Reid Spencer 03c6038226 Remove an unused variable. 
llvm-svn: 31403
 2006-11-03 01:48:30 +00:00
Chris Lattner a2d7d1c4fa Fix JIT encoding of two-addr instructions. 
llvm-svn: 30111
 2006-09-05 03:01:52 +00:00
Jim Laskey 10d4b040ac Clean up. 
llvm-svn: 29137
 2006-07-13 22:17:08 +00:00
Jim Laskey a44f6269bf 1. Simplfy bit operations. 
2. Coalesce instruction cases.

llvm-svn: 29135
 2006-07-13 21:02:53 +00:00
Jim Laskey 23bd480cea Move base value of instruction to lookup table to prepare for case reduction. 
llvm-svn: 29122
 2006-07-12 19:15:43 +00:00
Jim Laskey 57e4363171 Reduce bloat in target libraries by removing per machine instruction assertion 
from code emitter generation.

llvm-svn: 29097
 2006-07-11 01:25:59 +00:00
Chris Lattner f878f6aa54 Fix miscodegen of V_SET0 in PPC. 
llvm-svn: 26836
 2006-03-18 00:40:36 +00:00
Chris Lattner ec249a3d30 Don't emit JIT code for these instructions 
llvm-svn: 25669
 2006-01-27 01:39:38 +00:00
Chris Lattner fc9f5773d0 Fix an incompatibility with GCC 4.1, thanks to Vladimir Merzliakov 
for pointing this out!

llvm-svn: 23963
 2005-10-24 15:04:15 +00:00
Chris Lattner 04a5ae3f71 The code emitter generator only supports targets with 32-bit instruction 
words.  There is no way for one of these targets to have a > 32-bit immediate!

llvm-svn: 22897
 2005-08-19 01:04:33 +00:00
Misha Brukman 650ba8eb56 Remove trailing whitespace 
llvm-svn: 21428
 2005-04-22 00:00:37 +00:00
Misha Brukman 8393c15b28 * Factor out (into new fn) a loop emitting operand shifts into the instruction 
* Reverse instruction bit components for a LittleEndian-style encoding
* Fix some comments and spacing

llvm-svn: 16975
 2004-10-14 05:53:01 +00:00
Reid Spencer 7c16caa336 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Chris Lattner c9d99efdd3 Do not #include files into the llvm namespace 
llvm-svn: 15849
 2004-08-17 03:08:28 +00:00
Misha Brukman 422d0fadf1 Deleted commented-out code as we now get namespace directly, add comments 
llvm-svn: 15627
 2004-08-10 20:54:58 +00:00
Misha Brukman 59978333a3 Use the target name instead of hard-coding SparcV9. 
llvm-svn: 15616
 2004-08-10 18:31:01 +00:00
Chris Lattner 79db057a3b This was a good idea, but until this does not break the build of 
lib/Target/Sparc, we should not use it.

llvm-svn: 15603
 2004-08-10 15:05:18 +00:00
Misha Brukman 920ae9524d Use the current target name instead of a ClassPrefix. 
llvm-svn: 15585
 2004-08-09 19:10:43 +00:00
Misha Brukman 18d27dc342 * Use Classname and ClassPrefix instead of hard-coded V9 values 
* Simplify code and shorten lines by not recomputing values

llvm-svn: 15582
 2004-08-09 17:47:45 +00:00
Misha Brukman 8e5492e350 * Added documentation in the file header 
* Shorten assert() text to make it fit within 80 cols

llvm-svn: 15508
 2004-08-04 22:07:54 +00:00
Chris Lattner 6847866400 Finegrainify namespacification 
llvm-svn: 15381
 2004-08-01 03:55:39 +00:00
Brian Gaeke 960707c335 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
John Criswell d3032037f1 Added LLVM copyright header. 
llvm-svn: 9305
 2003-10-20 20:20:30 +00:00
Chris Lattner f5bd1b7a8e Move support/tools/* back into utils 
llvm-svn: 8875
 2003-10-05 19:27:59 +00:00