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83 Commits

Author SHA1 Message Date
Dan Gohman a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t. 
llvm-svn: 55779
 2008-09-04 17:05:41 +00:00
Dan Gohman 3b46030375 Pool-allocation for MachineInstrs, MachineBasicBlocks, and 
MachineMemOperands. The pools are owned by MachineFunctions.

This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.

llvm-svn: 53212
 2008-07-07 23:14:23 +00:00
Evan Cheng 7d98a48f15 - Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc. 
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.

llvm-svn: 53097
 2008-07-03 09:09:37 +00:00
Evan Cheng 18e46d455b Cosmetic changes. 
llvm-svn: 52479
 2008-06-19 01:21:26 +00:00
Dan Gohman 0479aa5c0b Change class' public PassInfo variables to by initialized with the 
address of the PassInfo directly instead of calling getPassInfo.
This eliminates a bunch of dynamic initializations of static data.

Also, fold RegisterPassBase into PassInfo, make a bunch of its
data members const, and rearrange some code to initialize data
members in constructors instead of using setter member functions.

llvm-svn: 51022
 2008-05-13 02:05:11 +00:00
Dan Gohman d78c400b5b Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
 2008-05-13 00:00:25 +00:00
Bill Wendling 6b8bd513d4 Constify isSourceDefinedByImplicitDef function. Otherwise, just formatting 
changes that don't change functionality.

llvm-svn: 51004
 2008-05-12 22:15:05 +00:00
Evan Cheng bec201fa06 If all sources of a PHI node are defined by an implicit_def, just emit an implicit_def instead of a copy. 
llvm-svn: 50927
 2008-05-10 00:17:50 +00:00
Evan Cheng 33281864c1 If a PHI node has a single implicit_def source, replace it with an implicit_def instead of a copy. 
llvm-svn: 49543
 2008-04-11 17:54:45 +00:00
Evan Cheng 14bee50e06 Undo PHI elimination copy placement patch. This causes coalescing (performace) issues. 
llvm-svn: 49198
 2008-04-04 01:20:05 +00:00
Evan Cheng aacf4f15b3 - PHI elimination also eliminates implicit_def that fits into a PHI node rather than copying it. 
- Be (slightly) smarter about where to place the copies.

llvm-svn: 49165
 2008-04-03 16:38:20 +00:00
Evan Cheng be3d44c3cb Remove #include<map> from LiveVariables.h. Not referenced. 
llvm-svn: 49099
 2008-04-02 17:23:50 +00:00
Evan Cheng 6325446666 Refactor code. Remove duplicated functions that basically do the same thing as 
findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.

llvm-svn: 47927
 2008-03-05 00:59:57 +00:00
Dan Gohman 3a4be0fdef Rename MRegisterInfo to TargetRegisterInfo. 
llvm-svn: 46930
 2008-02-10 18:45:23 +00:00
Owen Anderson 1ba66e0cec Remove DefInst from LiveVariables::VarInfo. Use the facilities on MachineRegisterInfo instead. 
llvm-svn: 46016
 2008-01-15 22:02:46 +00:00
Bill Wendling 0c209430b4 Don't recalculate the loop info and loop dominators analyses if they're 
preserved.

llvm-svn: 45596
 2008-01-04 20:54:55 +00:00
Owen Anderson 7a73ae9a86 Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the 
Machine-level API cleanup instigated by Chris.

llvm-svn: 45470
 2007-12-31 06:32:00 +00:00
Chris Lattner a10fff51d9 Rename SSARegMap -> MachineRegisterInfo in keeping with the idea 
that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467
 2007-12-31 04:13:23 +00:00
Chris Lattner a5bb370aa4 Add new shorter predicates for testing machine operands for various types: 
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
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Owen Anderson 9d86ef12c8 Bring UsedBlocks back. StrongPHIElimination needs this information. 
llvm-svn: 43866
 2007-11-08 01:20:48 +00:00
Evan Cheng c1e4e3743b Allow copyRegToReg to emit cross register classes copies. 
Tested with "make check"!

llvm-svn: 42346
 2007-09-26 06:25:56 +00:00
Nick Lewycky e7da2d6ac3 Fix typo in comment. 
llvm-svn: 36873
 2007-05-06 13:37:16 +00:00
Devang Patel 8c78a0bff0 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Devang Patel e95c6ad802 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
 2007-05-02 21:39:20 +00:00
Devang Patel 09f162ca6a Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Evan Cheng 4c53d321aa VarInfo::UsedBlocks is no longer used. Remove. 
llvm-svn: 36250
 2007-04-18 05:04:38 +00:00
Evan Cheng a5a0c7c909 Increment use count of new virtuals created during PHI elimination. 
llvm-svn: 36233
 2007-04-18 00:36:11 +00:00
Evan Cheng 5382426577 Keep UsedBlocks info accurate. 
llvm-svn: 35140
 2007-03-18 09:02:31 +00:00
Chris Lattner 1003dc72b4 rename DenseMap to IndexedMap. 
llvm-svn: 33749
 2007-02-01 05:32:05 +00:00
Chris Lattner aee775a6b7 Eliminate static ctors from Statistics 
llvm-svn: 32698
 2006-12-19 22:41:21 +00:00
Chris Lattner 700b873130 Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.

llvm-svn: 32279
 2006-12-06 17:46:33 +00:00
Bill Wendling 5d409822d6 "Once more into the breach, dear friends, once more, or fill the wall up 
with our English dead."

No! Really! Serious this time...It was how the vreg uses were being
adjusted that was causing hte Olden tests to fail. I corrected this and
the Olden and Regression tests all passed.

llvm-svn: 30644
 2006-09-28 07:10:24 +00:00
Chris Lattner 764caf6129 re-re-revert this, back to the right revision. It currently breaks bisort/mst 
in olden among others.

llvm-svn: 30637
 2006-09-28 00:11:54 +00:00
Chris Lattner 9f7d0d1dc5 re-revert this patch, bisort and mst are still broken in Olden. 
llvm-svn: 30634
 2006-09-28 00:04:21 +00:00
Bill Wendling 1f29e6c5c5 Reapplying this patch. With the newest commits, the error in Olden/bisort 
has disappeared.

llvm-svn: 30633
 2006-09-27 22:37:35 +00:00
Chris Lattner 5f6c93701b Temporarily revert this. This breaks Olden/bisort on PPC 
llvm-svn: 30628
 2006-09-27 16:59:16 +00:00
Bill Wendling 0a7f617a6c PR878: Instead of calculating the vreg to PHI use count everytime we get 
a function, do it up front in linear time (going through all of the
instructions once). We create a map out of them. Then it's no problem to
use the information in it during elimination...

llvm-svn: 30624
 2006-09-27 09:04:15 +00:00
Chris Lattner 3d27be1333 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h| 
llvm-svn: 29911
 2006-08-27 12:54:02 +00:00
Chris Lattner 167ea3eb5f Fix an obvious bug, noticed by inspection. No current targets trigger this. 
llvm-svn: 29648
 2006-08-12 05:41:39 +00:00
Andrew Lenharth c496b418b5 Reduce number of exported symbols 
llvm-svn: 29220
 2006-07-20 17:28:38 +00:00
Chris Lattner 996795b0dd Use hidden visibility to make symbols in an anonymous namespace get 
dropped.  This shrinks libllvmgcc.dylib another 67K

llvm-svn: 28975
 2006-06-28 23:17:24 +00:00
Chris Lattner 227e936650 Add support for targets (like Alpha) that have terminator instructions which 
use virtual registers.  We now allow the first instruction in a block of
terminators to use virtual registers, and update phi elimination to correctly
update livevar when eliminating phi's.  This fixes a problem on a testcase
Andrew sent me.

llvm-svn: 25083
 2006-01-04 07:12:21 +00:00
Chris Lattner 0511055276 Add an assertion, update DefInst even though no one uses it (dangling pointers 
don't help anyone)

llvm-svn: 25081
 2006-01-04 06:47:48 +00:00
Chris Lattner 57b21f9f10 clean up this code a bit, no functionality change 
llvm-svn: 23609
 2005-10-03 07:22:07 +00:00
Chris Lattner 5f096e2847 Break the body of the loop out into a new method 
llvm-svn: 23606
 2005-10-03 04:47:08 +00:00
Chris Lattner 469652752c adjust to new live variables interface 
llvm-svn: 22992
 2005-08-23 23:42:17 +00:00
Misha Brukman 584ed83d4a * Order #includes alphabetically 
* Remove commented-out debug printouts

llvm-svn: 21707
 2005-05-05 23:45:17 +00:00
Misha Brukman 774511633d Convert tabs to spaces 
llvm-svn: 21439
 2005-04-22 04:01:18 +00:00
Misha Brukman 835702a094 Remove trailing whitespace 
llvm-svn: 21420
 2005-04-21 22:36:52 +00:00