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4948 Commits

Author SHA1 Message Date
Chris Lattner 4a1c74dcf8 Add new method 
llvm-svn: 10649
 2003-12-30 07:36:14 +00:00
Chris Lattner 6b668f228f Further revisions of the FDHandle idea. In this version we use ownership 
semantics that are the same as those used by std::auto_ptr.  This allows
copying of FDHandle's, but copying transfers ownership.

llvm-svn: 10646
 2003-12-30 02:45:16 +00:00
Chris Lattner 0120e92b2b Add trivial exception specs to produce better code since the methods cannot 
be inlined.

llvm-svn: 10643
 2003-12-29 21:43:58 +00:00
Chris Lattner a462161f9c Factor FDHandle out of the bytecode reader into the FileUtilities.h support 
routines.

llvm-svn: 10642
 2003-12-29 21:35:05 +00:00
Chris Lattner dca358f6ae implement new getToken function 
llvm-svn: 10639
 2003-12-29 05:07:02 +00:00
Chris Lattner 5d236005b0 Clean up a lot of the code I added yesterday by exposing the IntrinsicLowering 
implementation from the TargetMachine directly.

llvm-svn: 10636
 2003-12-28 21:23:38 +00:00
Alkis Evlogimenos a158dc8104 Reserve ECX and EDI instead of EBX and EDI. Since EBX is a callee 
saved register it has a longer free range than ECX (which is defined
every time there is a fnuction call) which makes ECX a better register
to reserve.

llvm-svn: 10635
 2003-12-28 18:03:52 +00:00
Alkis Evlogimenos 43b587d94d Add coalescing to register allocator. A hint is added to each interval 
which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.

llvm-svn: 10634
 2003-12-28 17:58:18 +00:00
Alkis Evlogimenos 52564b2071 Add TargetInstrInfo::isMoveInstr() to support coalescing in register 
allocation.

llvm-svn: 10633
 2003-12-28 17:35:08 +00:00
Chris Lattner 10cac58d23 Whoops, don't try to lower non intrinsic calls 
llvm-svn: 10632
 2003-12-28 09:53:23 +00:00
Chris Lattner c45a033b42 implement support for the intrinsic lowering functionality 
llvm-svn: 10629
 2003-12-28 09:47:19 +00:00
Chris Lattner dfc5631bfd Eliminate some code that is not needed now that we have the intrinsic lowering pass 
llvm-svn: 10628
 2003-12-28 09:46:33 +00:00
Chris Lattner c8c6c03dda Pass around IntrinsicLowering instances as appropriate. 
Reimplement the Interpreters implementation of va_* to be more direct.

llvm-svn: 10627
 2003-12-28 09:44:37 +00:00
Chris Lattner 4b75e04a60 Use the intrinsic lowering functionality 
llvm-svn: 10626
 2003-12-28 09:43:35 +00:00
Chris Lattner 24650d2b5e Move into the VMCore library 
llvm-svn: 10623
 2003-12-28 08:30:20 +00:00
Chris Lattner 08c196dd4b Implement the default implementation of the intrinsic lowering class 
llvm-svn: 10621
 2003-12-28 08:19:41 +00:00
Chris Lattner 27dd64242b finegrainify namespacification 
minor cleanups

llvm-svn: 10619
 2003-12-28 07:59:53 +00:00
Chris Lattner 56db5e98c8 Merging constants can cause further room for improvement. Iterate until 
we converge

llvm-svn: 10618
 2003-12-28 07:19:08 +00:00
Chris Lattner 5f4c6f55b6 Add a note 
llvm-svn: 10617
 2003-12-28 04:03:49 +00:00
Chris Lattner 5a0d48290f Factor code out of LLI 
llvm-svn: 10616
 2003-12-26 06:50:30 +00:00
Chris Lattner 4a2a8f5821 minor cleanups 
llvm-svn: 10612
 2003-12-26 06:16:00 +00:00
Chris Lattner 385a90aa6d No longer run atExit functions from run() 
rename run to runFunction
Genericize the runFunction code a little bit, though it still stinks

llvm-svn: 10610
 2003-12-26 06:13:47 +00:00
Chris Lattner d94296c620 No longer run atExit functions from run() 
rename run to runFunction

llvm-svn: 10609
 2003-12-26 06:13:05 +00:00
Alkis Evlogimenos 2e8c984c58 Improve debugging output when choosing a register to spill. 
llvm-svn: 10604
 2003-12-24 18:53:31 +00:00
Alkis Evlogimenos eeea81483f Do a separate pass to compute spill weights because doing it inline 
with live intervals was missing registers that were used before they
were defined (in the arbitrary order live intervals numbers
instructions).

llvm-svn: 10603
 2003-12-24 15:44:53 +00:00
Chris Lattner 87c593b882 Right, fix the problem with invoke instructions, not just call instructions 
llvm-svn: 10599
 2003-12-23 22:18:36 +00:00
Chris Lattner 601415ed84 Do not delete the type holder until after the call instruction has been 
constructed!

llvm-svn: 10598
 2003-12-23 20:39:17 +00:00
Chris Lattner e970301580 Minor cleanups, plug a minor memory leak 
llvm-svn: 10596
 2003-12-23 20:05:15 +00:00
Alkis Evlogimenos 7d7d7e89d4 Change the way free regusters are computed and perform better 
allocation in the presence of preallocated intervals.

llvm-svn: 10595
 2003-12-23 18:00:33 +00:00
Chris Lattner 30513e0a3a rename ClassifyExpression -> ClassifyExpr 
llvm-svn: 10592
 2003-12-23 08:04:08 +00:00
Chris Lattner 7e755e443f More minor non-functional changes. This now computes the exit condition, though 
it doesn't do anything with it.

llvm-svn: 10590
 2003-12-23 07:47:09 +00:00
Chris Lattner 93bfb6c741 Remove extraneous #include 
finegrainify namespacification

llvm-svn: 10589
 2003-12-23 07:43:38 +00:00
Chris Lattner 1e74843e7c Finegrainify namespacification 
llvm-svn: 10588
 2003-12-23 06:44:41 +00:00
Chris Lattner c2ee05427e Fix memory corruption bug PR193 
llvm-svn: 10586
 2003-12-22 23:49:36 +00:00
John Criswell bd10d09b07 Reverted back to revision 1.11. The previous fix doesn't really fix 
anything; it just causes the bug to go dormant.

llvm-svn: 10585
 2003-12-22 16:22:49 +00:00
Alkis Evlogimenos 3ec903474f Fix crash when compiling twolf. 
llvm-svn: 10584
 2003-12-22 13:54:29 +00:00
Chris Lattner a02d5aa6ce Don't mind me, I'm just refactoring away. This patch makes room for LFTR, but 
contains no functionality changes.

llvm-svn: 10583
 2003-12-22 09:53:29 +00:00
Chris Lattner a86c4a3a01 finegrainify namespacification 
Implement indvar analysis of getelementptr and sub expressions

llvm-svn: 10582
 2003-12-22 05:26:29 +00:00
Chris Lattner 6449dcefbc Implement IndVarsSimplify/pointer-indvars.ll, transforming pointer 
arithmetic into "array subscripts"

llvm-svn: 10580
 2003-12-22 05:02:01 +00:00
Chris Lattner bb661c18c8 finegrainify namespacification 
add new getIntPtrType() method

llvm-svn: 10579
 2003-12-22 05:01:15 +00:00
Chris Lattner d3678bc7c5 Fix PR194 
llvm-svn: 10573
 2003-12-22 03:58:44 +00:00
Misha Brukman 69aa1ccb07 Really release memory used by functions. Patch by Chris. 
llvm-svn: 10572
 2003-12-22 03:47:58 +00:00
Alkis Evlogimenos 690e1b8de2 Remove verifyIntervals() since it doesn't actually work right now. 
llvm-svn: 10570
 2003-12-21 20:41:26 +00:00
Alkis Evlogimenos 2665d9c6f9 Change weight into a float so that we can take into account the 
nesting level when computing it. Right now the allocator uses:

    w = sum_over_defs_uses( 10 ^ nesting level );

llvm-svn: 10569
 2003-12-21 20:19:10 +00:00
Alkis Evlogimenos 2103574b32 Move FP_REG_KILL closer to the return instruction. 
llvm-svn: 10567
 2003-12-21 16:47:43 +00:00
Alkis Evlogimenos c09b77ea35 Add support for inactive intervals. This effectively reuses registers 
for live ranges that fall into assigned registers' holes.

llvm-svn: 10566
 2003-12-21 05:43:40 +00:00
John Criswell d8c7a7fbaa Fix PR#193. 
Modified ReadArchiveBuffer() so that it dynamically allocates the
std::string object used to hold the bytecode object file's name.  This is
necessary because it is passed by reference to the new Module that is
allocated to represent the bytecode object, and previously we were
using a std::string that disappeared on function exit.

llvm-svn: 10565
 2003-12-20 22:37:29 +00:00
Alkis Evlogimenos 27437e3318 Move FP_REG_KILL closer to the actual branch instruction. 
llvm-svn: 10563
 2003-12-20 17:28:15 +00:00
Alkis Evlogimenos 68cff6bf4d Remove floating point killer pass. This is now implemented in the 
instruction selector by adding a new pseudo-instruction
FP_REG_KILL. This instruction implicitly defines all x86 fp registers
and is a terminator so that passes which add machine code at the end
of basic blocks (like phi elimination) do not add instructions between
it and the branch or return instruction.

llvm-svn: 10562
 2003-12-20 16:22:59 +00:00
Chris Lattner 4cbb97bfdd Add a new target-independent machine code freeing pass 
llvm-svn: 10560
 2003-12-20 10:20:58 +00:00