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58 Commits

Author SHA1 Message Date
Chris Lattner f8f724a2b1 Move two methods out of line, make them work when the record for a machine 
instruction includes physregs.

llvm-svn: 30061
 2006-09-03 00:05:09 +00:00
Chris Lattner 3c9b2420df Eliminate RegisterAnalysis. RegisterPass now does all that is necessary. 
llvm-svn: 29921
 2006-08-27 22:30:17 +00:00
Jim Laskey 4b49c23571 Eliminate data relocations by using NULL instead of global empty list. 
llvm-svn: 29250
 2006-07-21 21:15:20 +00:00
Chris Lattner ee64b6b40f Remove a bunch more dead V9 specific stuff 
llvm-svn: 28094
 2006-05-04 01:26:39 +00:00
Chris Lattner be45b5e948 Add a LiveVariables::VarInfo::dump method 
llvm-svn: 25080
 2006-01-04 05:40:30 +00:00
Chris Lattner 2ea5c99eca Add section switching to common code generator code. Add a couple of 
asserts.

llvm-svn: 24445
 2005-11-21 07:06:27 +00:00
Chris Lattner eeacce5a60 Implement LiveVariables.h change 
llvm-svn: 22994
 2005-08-24 00:09:33 +00:00
Chris Lattner 469652752c adjust to new live variables interface 
llvm-svn: 22992
 2005-08-23 23:42:17 +00:00
Chris Lattner 91caf1d039 allow a virtual register to be associated with live-in values. 
llvm-svn: 21927
 2005-05-13 07:08:07 +00:00
Misha Brukman 835702a094 Remove trailing whitespace 
llvm-svn: 21420
 2005-04-21 22:36:52 +00:00
Chris Lattner 4c6ab01a20 Consider the livein/out set for a function, allowing targets to not have to 
use ugly imp_def/imp_uses for arguments and return values.

llvm-svn: 21180
 2005-04-09 15:23:25 +00:00
Chris Lattner 1cffa73f2a Just in case, handle something that is both a use and a def. 
llvm-svn: 19696
 2005-01-19 17:11:51 +00:00
Chris Lattner 00c436824f When an instruction moves, make sure to update the VarInfo::Kills list as 
well as all of teh other stuff in livevar. This fixes the compiler crash
on fourinarow last night.

llvm-svn: 19695
 2005-01-19 17:09:15 +00:00
Chris Lattner 6180881673 Do not use variable sized arrays in C++, they are non-portable. Patch 
contributed by Morten Ofstad

llvm-svn: 17217
 2004-10-25 18:44:14 +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
Alkis Evlogimenos 6a099d439e Give a better assertion if we see a use before a def. 
llvm-svn: 16135
 2004-09-01 22:34:52 +00:00
Alkis Evlogimenos c227d73e5f Remove dead code. 
llvm-svn: 16077
 2004-08-28 22:43:31 +00:00
Alkis Evlogimenos 2c69803b61 Use newly added API in MRegisterInfo and don't expose the allocatable 
register set anymore. Its users now use the MRegisterInfo API.

llvm-svn: 16061
 2004-08-26 22:23:32 +00:00
Chris Lattner aef6c2a350 There is no need to store the MBB along with the MI any more, we can now 
ask instructions for their parent.

llvm-svn: 14998
 2004-07-19 07:04:55 +00:00
Chris Lattner a74cf5a7d9 Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead) 
llvm-svn: 14997
 2004-07-19 06:55:21 +00:00
Chris Lattner 5027de35ed Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent() 
llvm-svn: 14996
 2004-07-19 06:26:50 +00:00
Chris Lattner d47909e00a Add checks to ensure that there are no unreachable blocks in the function 
llvm-svn: 14725
 2004-07-09 16:44:37 +00:00
Chris Lattner c85535c8be Now that MachineFunction/MachineBasicBlock keep a mapping of blocks to ID #'s 
use them instead of a local LiveVariables numbering

llvm-svn: 14523
 2004-07-01 06:15:32 +00:00
Chris Lattner 6c375e4926 Start using MBB numbers directly instead of going through the live variables 
map.

llvm-svn: 14518
 2004-07-01 04:29:47 +00:00
Chris Lattner 7c77fd50e7 Instead of building a private numbering of MBB's use brg's nifty auto-numbering. 
Also convert df_iterator -> df_ext_iterator for subsequent stuff I'm doing.

llvm-svn: 14517
 2004-07-01 04:24:29 +00:00
Misha Brukman 7d11fbf971 Convert tabs to spaces. 
llvm-svn: 14373
 2004-06-24 21:31:16 +00:00
Chris Lattner 2150542af9 Adjust to new TargetMachine interface 
llvm-svn: 13956
 2004-06-02 05:57:12 +00:00
Chris Lattner 5eb8094c2d Patch to fix PR337. Make sure to mark all aliased physical registers as used 
when we see a read of a register.  This is important in cases like:

AL = ...
AH = ...

   = AX

The read of AX must make both the AL and AH defs live until the use.

llvm-svn: 13444
 2004-05-10 05:12:43 +00:00
Chris Lattner c49a9a5d76 Stop LiveVariables from using BasicBlocks as part of the mapping, instead 
use MachineBasicBlocks.  To do this, we traverse the Machine CFG instead of
the LLVM CFG, which is also *MUCH* more efficient by having fewer levels of
indirections and mappings.

llvm-svn: 13301
 2004-05-01 21:24:24 +00:00
Alkis Evlogimenos a333b1382f Correctly update LiveVariables when an instruction changes 
llvm-svn: 12561
 2004-03-30 22:44:39 +00:00
Chris Lattner 604cc83933 Add an assert 
llvm-svn: 12010
 2004-02-29 22:01:51 +00:00
Alkis Evlogimenos 61719d48d2 Uncomment assertions that register# != 0 on calls to 
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.

llvm-svn: 11882
 2004-02-26 22:00:20 +00:00
Chris Lattner 4c988391e1 Fix an iterator invalidation problem. :( 
llvm-svn: 11627
 2004-02-19 18:32:29 +00:00
Chris Lattner afa9d7eb85 Add method to update livevar when an instruction moves 
llvm-svn: 11625
 2004-02-19 18:28:02 +00:00
Alkis Evlogimenos bbf53937a4 Make dense maps keyed on physical registers smallerusing 
MRegisterInfo::getNumRegs() instead of
MRegisterInfo::FirstVirtualRegister.

Also use MRegisterInfo::is{Physical,Virtual}Register where
appropriate.

llvm-svn: 11477
 2004-02-15 21:37:17 +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
Chris Lattner b21ec54e61 Add #include 
llvm-svn: 11285
 2004-02-10 21:18:55 +00:00
Chris Lattner 5dd5be3ec3 Do not use MachineOperand::isVirtualRegister either! 
llvm-svn: 11283
 2004-02-10 21:12:22 +00:00
Chris Lattner 373fba5c1d Eliminate users of MachineOperand::isPhysicalRegister 
llvm-svn: 11278
 2004-02-10 20:41:10 +00:00
Chris Lattner bbd9a43d20 Ugh, perform an optimization that GCC should be able to do itself. This 
speeds up livevar from .48/.32s -> .45/.31s in LLC on perlbmk

llvm-svn: 11217
 2004-02-09 01:43:23 +00:00
Chris Lattner 26407384ec Only do stuff for the REAL number of physical registers we have, not 1024. 
This speeds up live variables a lot, from .60/.39s -> .47/.26s in LLC, for
the first/second pass respectively.

llvm-svn: 11216
 2004-02-09 01:35:21 +00:00
Chris Lattner c330b98c1c Finegrainify namespacification, use new MRegisterInfo::isVirtualRegister 
method

llvm-svn: 11037
 2004-01-31 21:27:19 +00:00
Chris Lattner 0770862334 Finegrainify namespacification 
Implement LiveVariables::getIndexMachineBasicBlock

llvm-svn: 11018
 2004-01-30 22:08:53 +00:00
Alkis Evlogimenos 9d0c3d21c8 Remove unneeded check (with the recent change in live variables a use 
of a physical register is always dominated by a def).

llvm-svn: 10821
 2004-01-13 21:16:25 +00:00
Alkis Evlogimenos ebbd66c042 Correctly compute live variable information for physical registers 
when an implicitely defined register is later used by an alias. For example:

         call foo
         %reg1024 = mov %AL

The call implicitely defines EAX but only AL is used. Before this fix
no information was available on AL. Now EAX and all its aliases except
AL get defined and die at the call instruction whereas AL lives to be
killed by the assignment.

llvm-svn: 10813
 2004-01-13 06:24:30 +00:00
Alkis Evlogimenos aaba4639f8 Change interface of MachineOperand as follows: 
a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
    b) add isUse(), isDef()
    c) rename opHiBits32() to isHiBits32(),
              opLoBits32() to isLoBits32(),
              opHiBits64() to isHiBits64(),
              opLoBits64() to isLoBits64().

This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.

llvm-svn: 10461
 2003-12-14 13:24:17 +00:00
Alkis Evlogimenos 9bced9455a Remove unecessary if statements when looping on ImplicitDefs. 
llvm-svn: 10444
 2003-12-13 01:20:58 +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 482202a601 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.

llvm-svn: 9298
 2003-10-20 19:43:21 +00:00
Alkis Evlogimenos 5f1f337d95 Change MRegisterDesc::AliasSet, TargetInstrDescriptor::ImplicitDefs 
and TargetInstrDescriptor::ImplicitUses to always point to a null
terminated array and never be null. So there is no need to check for
pointer validity when iterating over those sets. Code that looked
like:

if (const unsigned* AS = TID.ImplicitDefs) {
  for (int i = 0; AS[i]; ++i) {
    // use AS[i]
  }
}

was changed to:

for (const unsigned* AS = TID.ImplicitDefs; *AS; ++AS) {
  // use *AS
}

llvm-svn: 8960
 2003-10-08 05:20:08 +00:00