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9649 Commits

Author SHA1 Message Date
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
John Criswell b6d3cb9449 Modified the linker so that it always links in an object from an archive 
that defines the symbol "main."  This is a hack that ensures that programs
that place their main function in a library and then link it in
(i.e. Apache 2.x) get their main function linked in.

There is probably a more correct way to do this, but this works for now.

llvm-svn: 10594
 2003-12-23 17:37:06 +00:00
Chris Lattner bd03ac8567 Rename method 
llvm-svn: 10593
 2003-12-23 09:41:45 +00:00
Chris Lattner 30513e0a3a rename ClassifyExpression -> ClassifyExpr 
llvm-svn: 10592
 2003-12-23 08:04:08 +00:00
Chris Lattner f732b6b926 Rename ClassifyExpression -> ClassifyExpr 
llvm-svn: 10591
 2003-12-23 08:03:40 +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 0b428c107d bug fixed 
llvm-svn: 10587
 2003-12-22 23:56:37 +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 f1277450ab new testcase for cananonicalization of subtracts 
llvm-svn: 10581
 2003-12-22 05:24:45 +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 db65d6f14c Doxygenize methods, add new getIntPtrType method 
llvm-svn: 10578
 2003-12-22 05:00:45 +00:00
Chris Lattner a5e3418d98 New testcase to see if -indvars can promote pointer arithmetic to array accesses 
llvm-svn: 10577
 2003-12-22 05:00:13 +00:00
Chris Lattner 2d69eae755 fix grammao 
llvm-svn: 10576
 2003-12-22 04:08:12 +00:00
Chris Lattner 8e570babb0 Bug fixed 
llvm-svn: 10575
 2003-12-22 04:06:24 +00:00
Chris Lattner 5abdc6fd3d The GCC problem is not specific to suse 
llvm-svn: 10574
 2003-12-22 04:06:12 +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
Misha Brukman 8834af99d6 Fix the URL to check the referrer for CSS conformity. 
llvm-svn: 10571
 2003-12-21 22:53:21 +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
Chris Lattner 7b432f77ac New testcase for PR194 
llvm-svn: 10568
 2003-12-21 19:06:15 +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 2406ca8d71 Fix help string for --enable-spec2000 option 
llvm-svn: 10564
 2003-12-20 21:35:15 +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 6448f89cdc Another day, another bug 
llvm-svn: 10561
 2003-12-20 10:29:02 +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
Chris Lattner 452597611f Finally, _actually delete the machine code_ for a function, after it has 
been emitted.  Also, since the FPK pass is causing memory access violations,
disable it.

llvm-svn: 10559
 2003-12-20 10:20:19 +00:00
Chris Lattner b1bbd7c7f6 This should not be needed anymore 
llvm-svn: 10558
 2003-12-20 10:19:18 +00:00
Chris Lattner 5219159892 Rearrange code, indent for the namespace, add the createMachineFunctionPrinterPass 
to passes.h, and add the machien destruction pass to Passes.h

llvm-svn: 10557
 2003-12-20 10:18:58 +00:00
Chris Lattner af4304f807 Fix memory leak in the stackifier, due to the machinebasicblocks not holding 
instructions on an ilist

llvm-svn: 10556
 2003-12-20 10:12:17 +00:00
Chris Lattner d46cd68695 Finegrainify namespacification 
Minor cleanups to killer pass

llvm-svn: 10555
 2003-12-20 09:58:55 +00:00
Chris Lattner 9a4898939a Hoist some sparc specific code into the sparc target 
llvm-svn: 10554
 2003-12-20 09:17:40 +00:00
Chris Lattner 9a3478e022 * Finegrainify namespacification 
* Move sparc specific code out of generic code
* Eliminate the getOffset() method which made INVALID_FRAME_OFFSET
  necessary, which made pulling in MAX_INT as a sentinal necessary.

llvm-svn: 10553
 2003-12-20 09:17:07 +00:00
Chris Lattner 299517dcde Remove sparc specific passes from public headers 
llvm-svn: 10552
 2003-12-20 09:15:21 +00:00
Chris Lattner 6800f92507 Remove a horrible API 
llvm-svn: 10551
 2003-12-20 09:15:01 +00:00
Chris Lattner 4df78f0fad PR135 is now finally fixed 
llvm-svn: 10550
 2003-12-20 03:42:11 +00:00
Chris Lattner fbcc0aa18d Implement PR135, lazy emission of global variables 
llvm-svn: 10549
 2003-12-20 03:36:47 +00:00
Chris Lattner 620ac15114 Cleanups to implement PR135 
llvm-svn: 10548
 2003-12-20 03:35:50 +00:00
Chris Lattner 6bbe3ecee5 Simple refactorings to prepare for lazy global emission 
Also, add a stat for the number of globals emitted

llvm-svn: 10547
 2003-12-20 02:45:37 +00:00
Chris Lattner dc997d9470 Simple refactorings to prepare for lazy global emission 
llvm-svn: 10546
 2003-12-20 02:45:16 +00:00
Chris Lattner ddec71c3b6 A minor cleanup for better encapsulation 
llvm-svn: 10545
 2003-12-20 02:03:14 +00:00
Chris Lattner 9bcae072d1 Cleanup the JIT as per PR176. This renames the VM class to JIT, and merges the 
VM.cpp and JIT.cpp files into JIT.cpp.  This also splits some nasty code out
into TargetSelect.cpp so that people hopefully won't notice it.  :)

llvm-svn: 10544
 2003-12-20 01:46:27 +00:00
Chris Lattner 32ccf7e196 Update for changes in the JIT 
llvm-svn: 10543
 2003-12-20 01:45:17 +00:00
Chris Lattner 833c3c2597 Rip JIT specific stuff out of TargetMachine, as per PR176 
llvm-svn: 10542
 2003-12-20 01:22:19 +00:00
Chris Lattner 80a4508614 Eliminate a spurious warning 
llvm-svn: 10540
 2003-12-19 19:48:43 +00:00
Chris Lattner fc7bdac1b3 Fix ADCE/2003-12-19-MergeReturn.llx 
llvm-svn: 10539
 2003-12-19 09:08:34 +00:00
Chris Lattner b141a2aca6 New testcase for missed optimization 
llvm-svn: 10538
 2003-12-19 09:08:15 +00:00
Chris Lattner b8b9163a2f Expand on the AliasSetTracker a bit, so I can remember this next time I come back to it. :) 
llvm-svn: 10537
 2003-12-19 08:43:07 +00:00
Chris Lattner 918460190f Remove the wierd "Operands" loop, by traversing basicblocks in reverse order 
llvm-svn: 10536
 2003-12-19 08:18:16 +00:00
Chris Lattner 86dd6d835c Add support for people calling main recursively 
llvm-svn: 10535
 2003-12-19 07:51:46 +00:00
Chris Lattner 547192d688 Implement LICM/sink_multiple.ll, by sinking all possible instructions in the 
loop before hoisting any.

llvm-svn: 10534
 2003-12-19 07:22:45 +00:00
Chris Lattner a2d66a5ada New testcase 
llvm-svn: 10533
 2003-12-19 06:54:37 +00:00
Chris Lattner 3d35e879dc Turn QOI section into CQ section (QUI can be added later if needed) 
Add PR187

llvm-svn: 10532
 2003-12-19 06:31:56 +00:00
Chris Lattner 031a3f8cc7 Generalize a special case to fix PR187 
llvm-svn: 10531
 2003-12-19 06:27:08 +00:00
Chris Lattner 91daeb5431 Factor code out into the Utils library 
llvm-svn: 10530
 2003-12-19 05:58:40 +00:00
Chris Lattner 04efa4b155 Add new function 
llvm-svn: 10529
 2003-12-19 05:56:28 +00:00
Chris Lattner 8f668f26a6 If -enable-linscan is specified, add ENABLE_LINEARSCAN=1 to the make commandline 
llvm-svn: 10527
 2003-12-19 03:47:31 +00:00
Chris Lattner 4953be9c73 Update template 
llvm-svn: 10525
 2003-12-19 03:34:46 +00:00
Alkis Evlogimenos 7139090fd2 Remove TwoAddressInstruction from the public headers and add an ID 
instead, since this pass doesn't expose any state to its users.

llvm-svn: 10520
 2003-12-18 22:40:24 +00:00
Brian Gaeke bbe0f1d795 Add install target for libraries. 
llvm-svn: 10519
 2003-12-18 20:57:48 +00:00
Chris Lattner 8f88cdfa22 Prune some #includes 
Add a statistic for # reloads

llvm-svn: 10518
 2003-12-18 20:25:31 +00:00
John Criswell b22e9b4b35 Reverted back to previous revision - this was previously merged 
according to the CVS log messages.

llvm-svn: 10517
 2003-12-18 17:19:19 +00:00
John Criswell 86a3a48697 Merged in RELEASE_11. 
llvm-svn: 10516
 2003-12-18 16:43:17 +00:00
Alkis Evlogimenos e5e2bd6777 Modify linear scan register allocator to use the two-address 
instruction pass. This also fixes all remaining bugs for this new
allocator to pass all tests under test/Programs.

llvm-svn: 10515
 2003-12-18 13:15:02 +00:00
Alkis Evlogimenos 3bd69eaac5 Fix bug in reserved registers. DH actually aliases DX and EDX which 
are not reserved registers.

llvm-svn: 10514
 2003-12-18 13:12:18 +00:00
Alkis Evlogimenos c17d57bd82 Modify local register allocator to use the two-address instruction pass. 
llvm-svn: 10513
 2003-12-18 13:08:52 +00:00
Alkis Evlogimenos 725021cb6c Add TwoAddressInstructionPass to handle instructions that have two or 
more operands and the two first operands are constrained to be the
same. The pass takes an instruction of the form:

        a = b op c

and transforms it into:

        a = b
        a = a op c

and also preserves live variables.

llvm-svn: 10512
 2003-12-18 13:06:04 +00:00
Alkis Evlogimenos 4d87219486 Rename LiveIntervals::expired() to LiveIntervals::expiredAt(). 
llvm-svn: 10511
 2003-12-18 08:56:11 +00:00
Alkis Evlogimenos 15b8036b29 When a variable is killed and redifined in a basic block only one 
killing instruction is tracked. This causes the LiveIntervals to
create bogus intervals. The workaound is to add a range to the
interval from the redefinition to the end of the basic block.

llvm-svn: 10510
 2003-12-18 08:53:43 +00:00
Alkis Evlogimenos 40874c708f Handle multiple virtual register definitions gracefully. 
Move some of the longer LiveIntervals::Interval method out of the
header and add debug information to them. Fix bug and simplify range
merging code.

llvm-svn: 10509
 2003-12-18 08:48:48 +00:00
Chris Lattner b3fdf83d17 add boog 
llvm-svn: 10508
 2003-12-18 08:16:25 +00:00
Chris Lattner 9e2b42a0c8 When we delete instructions from the loop, make sure to remove them from the 
AliasSetTracker as well.

llvm-svn: 10507
 2003-12-18 08:12:32 +00:00
Chris Lattner 44fea5416d Add a new AliassetTracker::remove method. Because we need to be able to remove 
a pointer from an AliasSet, maintain the pointer values on a doubly linked
list instead of a singly linked list, to permit efficient removal from the
middle of the list.

llvm-svn: 10506
 2003-12-18 08:11:56 +00:00
Chris Lattner cb6dfffa63 Check in patch that Reid submitted 
llvm-svn: 10505
 2003-12-18 06:40:22 +00:00
Misha Brukman 3096ca319a Fix the links to match our 'llvm' namespace in doxygen-generated docs. 
llvm-svn: 10504
 2003-12-17 23:10:49 +00:00
Misha Brukman ee158ca708 * Converted C-style comments to C++ 
* Doxygenified comments
* Reordered #includes

llvm-svn: 10503
 2003-12-17 22:08:20 +00:00
Misha Brukman 0f42585924 Reordered #includes. 
llvm-svn: 10502
 2003-12-17 22:06:28 +00:00
Misha Brukman 426275b96d Doxygenified some comments, reduced extraneous space. 
llvm-svn: 10501
 2003-12-17 22:06:08 +00:00
Misha Brukman b01a80aa94 Reorganized the Sparc backend to be more modular -- each different 
implementation of a Target{RegInfo, InstrInfo, Machine, etc} now has a separate
header and a separate implementation file.

This means that instead of a massive SparcInternals.h that forces a
recompilation of the whole target whenever a minor detail is changed, you should
only recompile a few files.

Note that SparcInternals.h is still around; its contents should be minimized.

llvm-svn: 10500
 2003-12-17 22:04:00 +00:00
Misha Brukman 423ad188da Since we are now in the 'llvm' namespace, the mangled C++ name of structs 
and hence the links, all change.

llvm-svn: 10495
 2003-12-17 18:46:49 +00:00
John Criswell d4e013e885 Added Stacker to Reid Spencer's list of contributions. 
llvm-svn: 10494
 2003-12-17 18:15:04 +00:00
Brian Gaeke 0a9980582d Make getObjectType() smarter about ranlibbed Mac OS X archives. 
llvm-svn: 10493
 2003-12-17 00:18:18 +00:00
Misha Brukman 91ed92fe5f Disable __attribute__((weak)) on Mac OS X and other lame platforms. 
llvm-svn: 10489
 2003-12-16 22:57:30 +00:00
Chris Lattner e7670a0bbb Add a faq entry for the demo page 
llvm-svn: 10488
 2003-12-16 22:33:55 +00:00
Brian Gaeke b69acf9a87 Fix typo in comment. 
llvm-svn: 10487
 2003-12-16 21:55:45 +00:00
Chris Lattner e5ac39d664 There is no reason to add -load support to LLC 
llvm-svn: 10483
 2003-12-15 23:10:25 +00:00
Misha Brukman 34cba91956 Added info about PR186: weak linkage on memory functions. 
llvm-svn: 10479
 2003-12-15 22:48:12 +00:00
Misha Brukman 97f451555d Make all memory functions have weak linkage so that they can be overridden with 
custom memory-management implementations (e.g., bash).

llvm-svn: 10478
 2003-12-15 22:32:50 +00:00
Chris Lattner 6c08bb8b8e Fix for PR185 & IndVarsSimplify/2003-12-15-Crash.llx 
llvm-svn: 10473
 2003-12-15 17:34:02 +00:00
Chris Lattner 98c265a382 New testcase, for PR185 
llvm-svn: 10471
 2003-12-15 17:33:41 +00:00