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Commit Graph

82 Commits

Author SHA1 Message Date
Dan Gohman
cd25487258 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
1f6148a84c - 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
f129d15d03 Cosmetic changes.
llvm-svn: 52479
2008-06-19 01:21:26 +00:00
Dan Gohman
138a53b303 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
bab18cae46 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
2f2610cf51 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
cf4d5567d5 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
6e52146f16 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
b05f463467 Undo PHI elimination copy placement patch. This causes coalescing (performace) issues.
llvm-svn: 49198
2008-04-04 01:20:05 +00:00
Evan Cheng
ba120126ba - 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
4e841d67ed Remove #include<map> from LiveVariables.h. Not referenced.
llvm-svn: 49099
2008-04-02 17:23:50 +00:00
Evan Cheng
18064ddb5b 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
cabaec582f Rename MRegisterInfo to TargetRegisterInfo.
llvm-svn: 46930
2008-02-10 18:45:23 +00:00
Owen Anderson
946d55e773 Remove DefInst from LiveVariables::VarInfo. Use the facilities on MachineRegisterInfo instead.
llvm-svn: 46016
2008-01-15 22:02:46 +00:00
Bill Wendling
93556af6c4 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
ae7e2c1e03 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
96167aa93c 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
9e5cc35593 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
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Owen Anderson
ba84ab5b21 Bring UsedBlocks back. StrongPHIElimination needs this information.
llvm-svn: 43866
2007-11-08 01:20:48 +00:00
Evan Cheng
5f9e291240 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
c2306ff5b4 Fix typo in comment.
llvm-svn: 36873
2007-05-06 13:37:16 +00:00
Devang Patel
cd45427a87 Drop 'const'
llvm-svn: 36662
2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162 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
38a66bc82e Do not use typeinfo to identify pass in pass manager.
llvm-svn: 36632
2007-05-01 21:15:47 +00:00
Evan Cheng
fbbdb92c9d VarInfo::UsedBlocks is no longer used. Remove.
llvm-svn: 36250
2007-04-18 05:04:38 +00:00
Evan Cheng
eecfac47a8 Increment use count of new virtuals created during PHI elimination.
llvm-svn: 36233
2007-04-18 00:36:11 +00:00
Evan Cheng
76df6abc61 Keep UsedBlocks info accurate.
llvm-svn: 35140
2007-03-18 09:02:31 +00:00
Chris Lattner
a24a3aaa94 rename DenseMap to IndexedMap.
llvm-svn: 33749
2007-02-01 05:32:05 +00:00
Chris Lattner
a975b95adb Eliminate static ctors from Statistics
llvm-svn: 32698
2006-12-19 22:41:21 +00:00
Chris Lattner
a531ce882e 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
deaf6398fc "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
616a120782 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
72d308b1e8 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
9b8d1f3eb6 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
f5e5429cf9 Temporarily revert this. This breaks Olden/bisort on PPC
llvm-svn: 30628
2006-09-27 16:59:16 +00:00
Bill Wendling
cd762f5482 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
33bd5dcfb7 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
llvm-svn: 29911
2006-08-27 12:54:02 +00:00
Chris Lattner
d4ee71db50 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
c1074954fb Reduce number of exported symbols
llvm-svn: 29220
2006-07-20 17:28:38 +00:00
Chris Lattner
496bd3fbf6 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
19343b85fd 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
c3ff71cc3a 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
7754dd8231 clean up this code a bit, no functionality change
llvm-svn: 23609
2005-10-03 07:22:07 +00:00
Chris Lattner
018dc6d807 Break the body of the loop out into a new method
llvm-svn: 23606
2005-10-03 04:47:08 +00:00
Chris Lattner
7e3441972b adjust to new live variables interface
llvm-svn: 22992
2005-08-23 23:42:17 +00:00
Misha Brukman
1996bf6ea5 * Order #includes alphabetically
* Remove commented-out debug printouts

llvm-svn: 21707
2005-05-05 23:45:17 +00:00
Misha Brukman
a9a1982a44 Convert tabs to spaces
llvm-svn: 21439
2005-04-22 04:01:18 +00:00
Misha Brukman
774e55c446 Remove trailing whitespace
llvm-svn: 21420
2005-04-21 22:36:52 +00:00
Reid Spencer
c4abcbefb1 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