Commit Graph

33136 Commits

Author SHA1 Message Date
Anton Korobeynikov b6e2e4fd50 Add MSP430 InstPrinter stub
llvm-svn: 84701
2009-10-21 00:10:30 +00:00
Anton Korobeynikov 13de81ac40 Use proper target data
llvm-svn: 84700
2009-10-21 00:10:00 +00:00
David Goodwin 4388beb884 Respect src register allocation requirements when breaking anti-dependencies. Remove some dead code.
llvm-svn: 84691
2009-10-20 22:50:43 +00:00
Devang Patel 0c35dbdf03 Cosmetic changes.
s/validName/isValidName/g
s/with an Instruction/to an Instruction/g
s/RegisterMDKind/registerMDKind/g

llvm-svn: 84689
2009-10-20 22:50:27 +00:00
Daniel Dunbar a470eac6a1 Fix -Asserts warning.
llvm-svn: 84687
2009-10-20 22:10:05 +00:00
Anton Korobeynikov a6faf60831 Fix invalid for vector types fneg(bitconvert(x)) => bitconvert(x ^ sign)
transform.

llvm-svn: 84683
2009-10-20 21:37:45 +00:00
Lang Hames 16edcd724a Oops. Backing out 84681 - needs to wait for the indexing patch.
llvm-svn: 84682
2009-10-20 21:28:22 +00:00
Lang Hames d8938d1ca8 Added some debugging output to pre-alloc splitting.
llvm-svn: 84681
2009-10-20 21:25:13 +00:00
Dan Gohman 83f5c835ff Fix another place that calls Loop::contains a lot to construct a sorted
container of the blocks and do efficient lookups. This makes
isLoopSimplifyForm much faster on large loops, fixing a significant
compile-time issue in builds with assertions enabled.

llvm-svn: 84673
2009-10-20 20:41:13 +00:00
Jim Grosbach cccf5084a3 Disable by default while debugging
llvm-svn: 84669
2009-10-20 20:31:31 +00:00
Chris Lattner 7f903681ac alternate fix for PR5258 which avoids worklist problems, with reduced testcase.
llvm-svn: 84667
2009-10-20 20:27:49 +00:00
Jim Grosbach f3a2b6499e add cmd line opt to disable frame index reuse for ARM and T2. debug aid.
llvm-svn: 84664
2009-10-20 20:19:50 +00:00
Dan Gohman b6b8ec769c Restore LoopUnswitch's block-oriented threshold. LoopUnswitch now checks both
the estimated code size and the number of blocks when deciding whether to
do a non-trivial unswitch. This protects it from some very undesirable
worst-case behavior on large numbers of loop-unswitchable conditions, such
as in the testcase in PR5259.

llvm-svn: 84661
2009-10-20 20:06:09 +00:00
David Goodwin baf6dd26ea Checkpoint more aggressive anti-dependency breaking for post-ra scheduler.
llvm-svn: 84658
2009-10-20 19:54:44 +00:00
Jim Grosbach d2ba321930 Better handle instructions that re-def a scratch register
llvm-svn: 84657
2009-10-20 19:52:35 +00:00
Dan Gohman 3d9d78463c Following r84485, add Defs = [EFLAGS] to the 32-bit lock instructions too.
llvm-svn: 84652
2009-10-20 18:14:49 +00:00
Jeffrey Yasskin 27c669242a Move the Function*->allocated blocks map from the JITMemoryManager to the
JITEmitter.

I'm gradually making Functions auto-remove themselves from the JIT when they're
destroyed. In this case, the Function needs to be removed from the JITEmitter,
but the map recording which Functions need to be removed lived behind the
JITMemoryManager interface, which made things difficult.

This patch replaces the deallocateMemForFunction(Function*) method with a pair
of methods deallocateFunctionBody(void *) and deallocateExceptionTable(void *)
corresponding to the two startFoo/endFoo pairs.

llvm-svn: 84651
2009-10-20 18:13:21 +00:00
Jim Grosbach 5f2581a37a Register re-use for scavenged frame indices must check for re-deginition
of the register in the instruction which kills the scavenged value.

llvm-svn: 84641
2009-10-20 16:33:57 +00:00
Dan Gohman 4a43e3068d Make TranslateX86CC return COND_INVALID instead of aborting when it
encounters an OEQ or UNE comparison, and update its callers to check
for this return status and recover. This fixes a problem resulting from
the LowerOperation hooks being called from LegalizeVectorOps, because
LegalizeVectorOps only lowers vectors, so OEQ and UNE comparisons may
still be at large. This fixes PR5092.

llvm-svn: 84640
2009-10-20 16:22:37 +00:00
Torok Edwin cf10ec951d Fix PR5258, jump-threading creating invalid PHIs.
When an incoming value for a PHI is updated, we must also updated all other
incoming values for the same BB to match, otherwise we create invalid PHIs.

llvm-svn: 84638
2009-10-20 15:42:00 +00:00
Torok Edwin 729d92bd74 Fix PR4313: IPSCCP was not setting the lattice value for the invoke instruction
when the invoke had multiple return values: it set the lattice value only on the
extractvalue.
This caused the invoke's lattice value to remain the default (undefined), and
later propagated to extractvalue's operand, which incorrectly introduces
undefined behavior.

llvm-svn: 84637
2009-10-20 15:15:09 +00:00
Benjamin Kramer 3301207a15 Random #include pruning.
llvm-svn: 84632
2009-10-20 11:44:38 +00:00
Sanjiv Gupta 8296e62244 This file is replaeced by PIC16Section.h.
llvm-svn: 84628
2009-10-20 09:16:32 +00:00
Chris Lattner 9351e4f4b2 implement some more easy hooks.
llvm-svn: 84614
2009-10-20 06:22:33 +00:00
Chris Lattner 60d5131653 Implement some hooks, make printOperand abort if unknown modifiers are
present.

llvm-svn: 84613
2009-10-20 06:15:28 +00:00
Chris Lattner 227767b4e5 t2MOVi32imm is currently always lowered by the Thumb2ITBlockPass.
llvm-svn: 84611
2009-10-20 05:58:02 +00:00
Daniel Dunbar f0b3d15cfe Wire up the ARM MCInst printer, for llvm-mc.
llvm-svn: 84600
2009-10-20 05:15:36 +00:00
Dan Gohman c0964a571b Re-apply r84295, with fixes to how the loop "top" and "bottom" blocks are
tracked. Instead of trying to manually keep track of these locations
while doing complex modifications, just recompute them when they're needed.
This fixes a bug in which the TopMBB and BotMBB were not correctly updated,
leading to invalid transformations.

llvm-svn: 84598
2009-10-20 04:50:37 +00:00
Evan Cheng ccc2e0cbda Trim unnecessary includes.
llvm-svn: 84597
2009-10-20 04:23:20 +00:00
Dan Gohman d383c2f6ba Add getTopBlock and getBottomBlock member functions to MachineLoopInfo.
llvm-svn: 84596
2009-10-20 04:16:37 +00:00
Jim Grosbach 34f040a575 Now that all ARM subtargets use frame index scavenging, the Thumb1 requires*
functions are not needed.

llvm-svn: 84587
2009-10-20 01:32:47 +00:00
Evan Cheng fa4bcaec7c If the physical register being spilled does not have an interval, spill its sub-registers instead.
llvm-svn: 84586
2009-10-20 01:31:09 +00:00
Jim Grosbach 84f6235b6f Enable post-pass frame index register scavenging for ARM and Thumb2
llvm-svn: 84585
2009-10-20 01:26:58 +00:00
Chris Lattner 484d2e9491 lower ARM::MOVi32imm properly.
llvm-svn: 84583
2009-10-20 01:11:37 +00:00
Chris Lattner 43c5589a7e add support for external symbols. The mc instprinter can now handle
reasonable code like Codegen/ARM/2009-02-27-SpillerBug.ll, producing 
identical output except for superior formatting of constant pool entries.

llvm-svn: 84582
2009-10-20 00:56:16 +00:00
Chris Lattner 1b06acbd70 get fancy: support basic block operands. Yay for jumps.
llvm-svn: 84579
2009-10-20 00:52:47 +00:00
Chris Lattner 85ab670644 add supprort for the 'sbit' operand, MOVi apparently has one.
llvm-svn: 84577
2009-10-20 00:46:11 +00:00
Chris Lattner 19c52201bd add support for instruction predicates.
llvm-svn: 84575
2009-10-20 00:42:49 +00:00
Chris Lattner 2f69ed8f4c implement printSORegOperand, add lowering for the nasty and despicable MOVi2pieces :)
llvm-svn: 84573
2009-10-20 00:40:56 +00:00
Jim Grosbach 772b2f84eb Refs: A8-598.
Leave Inst{11-8}, which represents the starting byte index of the extracted
result in the concatenation of the operands and is left unspecified.

Patch by Johnny Chen.

llvm-svn: 84572
2009-10-20 00:38:19 +00:00
Jim Grosbach 68f495caad Add missing encoding bits to NLdSt class of instructions.
Patch by Johnny Chen.

llvm-svn: 84570
2009-10-20 00:19:08 +00:00
Chris Lattner 0b4a59fc07 X86 should ignore implicit regs when lowering to MCInst also,
no functionality change.

llvm-svn: 84567
2009-10-19 23:35:57 +00:00
Chris Lattner bd531262f8 handle addmode4 modifiers, fix a fixme in printRegisterList
by ignoring all implicit regs when lowering.

llvm-svn: 84566
2009-10-19 23:31:43 +00:00
Chris Lattner d99b6974b9 simplify by using the twine form of GetOrCreateSymbol
llvm-svn: 84565
2009-10-19 23:05:23 +00:00
Jim Grosbach f5f263f1b4 Enable allocation of R3 in Thumb1
llvm-svn: 84563
2009-10-19 22:57:03 +00:00
Chris Lattner d91c11091d use EmitLabel instead of text emission
llvm-svn: 84562
2009-10-19 22:51:16 +00:00
Chris Lattner 86dfd73c38 add a twine version of MCContext::GetOrCreateSymbol.
llvm-svn: 84561
2009-10-19 22:49:00 +00:00
Chris Lattner 186c6b0834 lower the ARM::CONSTPOOL_ENTRY pseudo op, giving us constant pool entries
like:

@ BB#1:
	.align	2
LCPI1_0:
	.long	L_.str-(LPC0+8)

Note that proper indentation of the label :)

llvm-svn: 84558
2009-10-19 22:33:05 +00:00
Jim Grosbach 5a5a3bc5d4 Adjust the scavenge register spilling to allow the target to choose an
appropriate restore location for the spill as well as perform the actual
save and restore.

The Thumb1 target uses this to make sure R12 is not clobbered while a spilled
scavenger register is live there.

llvm-svn: 84554
2009-10-19 22:27:30 +00:00
Chris Lattner add5749ac8 add MCInstLower support for lowering ARM::PICADD, a pseudo op for pic stuffola.
llvm-svn: 84553
2009-10-19 22:23:04 +00:00
Owen Anderson 168ad6985e Refactor lookup_or_add to contain _MUCH_ less duplicated code. Add support for
numbering first class aggregate instructions while we're at it.

llvm-svn: 84547
2009-10-19 22:14:22 +00:00
Chris Lattner ef2979b1da add register list and hacked up addrmode #4 support, we now get this:
_main:
	stmsp! sp!, {r7, lr}
	mov r7, sp
	sub sp, sp, #4
	mov r0, #0
	str r0, [sp]
	ldr r0, LCPI1_0
	bl _printf
	ldr r0, [sp]
	mov sp, r7
	ldmsp! sp!, {r7, pc}

Note the unhappy ldm/stm because of modifiers being ignored.

llvm-svn: 84546
2009-10-19 22:09:23 +00:00
Chris Lattner f264f8a21c revert r84540, fixing build breakage I didn't see because of
broken makefile deps :(

llvm-svn: 84544
2009-10-19 21:59:25 +00:00
Chris Lattner 7ddfdc4133 add addrmode2 support, getting us up to:
_main:
	stm , 
	mov r7, sp
	sub sp, sp, #4
	mov r0, #0
	str r0, [sp]
	ldr r0, LCPI1_0
	bl _printf
	ldr r0, [sp]
	mov sp, r7
	ldm , 

llvm-svn: 84543
2009-10-19 21:57:05 +00:00
Chris Lattner 889a6217fa add jump tables, constant pools and some trivial global
lowering stuff.  We can now compile hello world to:

_main:
	stm , 
	mov r7, sp
	sub sp, sp, #4
	mov r0, #0
	str r0, 
	ldr r0, 
	bl _printf
	ldr r0, 
	mov sp, r7
	ldm , 

Almost looks like arm code :)

llvm-svn: 84542
2009-10-19 21:53:00 +00:00
Victor Hernandez 5c704d505c Malloc calls are marked NoAlias, so the code below the isMalloc() check makes it redundant. Removing the isMalloc() check.
llvm-svn: 84541
2009-10-19 21:47:22 +00:00
Chris Lattner e3796a0fee pass mangler in as a reference instead of a pointer.
llvm-svn: 84540
2009-10-19 21:45:31 +00:00
Chris Lattner 8bd9b9d3fa reduce #includes
llvm-svn: 84536
2009-10-19 21:23:15 +00:00
Chris Lattner 89d47205b5 add printing support for SOImm operands, getting us to:
_main:
	stm , 
	mov r7, sp
	sub sp, sp, #4
	mov r0, #0
	str r0, 

llvm-svn: 84535
2009-10-19 21:21:39 +00:00
Owen Anderson 1059b5b32d Simplify some code.
llvm-svn: 84533
2009-10-19 21:14:57 +00:00
Chris Lattner 93e3ef6536 wire up some basic printOperand goodness, giving us stuff like this before
we abort:

_main:
	stm , 
	mov r7, sp
	sub sp, sp, 
	mov r0, 
	str r0, 

llvm-svn: 84532
2009-10-19 20:59:55 +00:00
Chris Lattner 78393d79a0 add the files that go with the previous rev
llvm-svn: 84531
2009-10-19 20:21:05 +00:00
Chris Lattner 71eb077c15 wire up skeletal support for having llc print instructions
through mcinst lowering -> mcinstprinter, when llc is passed
the -enable-arm-mcinst-printer flag.  Currently this
is very "aborty".

llvm-svn: 84530
2009-10-19 20:20:46 +00:00
Owen Anderson 5dab84ca9c Banish ConstantsLock. It's serving no purpose other than slowing things down
at the moment.

llvm-svn: 84529
2009-10-19 20:11:52 +00:00
Chris Lattner 296544e15f wire up ARM's printMCInst method. Now llvm-mc should be able to produce
"something" when printing MCInsts, it will just be missing all the 
operand info.

llvm-svn: 84528
2009-10-19 19:59:05 +00:00
Chris Lattner a290778859 stub out a minimal ARMInstPrinter.
llvm-svn: 84527
2009-10-19 19:56:26 +00:00
Chris Lattner 5db7b6a5d4 remove strings from instructions who are never asmprinted.
All of these "subreg32" modifier instructions are handled
explicitly by the MCInst lowering phase.  If they got to
the asmprinter, they would explode.  They should eventually
be replace with correct use of subregs.

llvm-svn: 84526
2009-10-19 19:51:42 +00:00
Jeffrey Yasskin 7d2edada7f Clean up the JITResolver stub/callsite<->function maps.
The JITResolver maps Functions to their canonical stubs and all callsites for
lazily-compiled functions to their target Functions. To make Function
destruction work, I'm going to need to remove all callsites on destruction, so
this patch also adds the reverse mapping for that.

There was an incorrect assumption in here that the only stub for a function
would be the one caused by needing to lazily compile it, while x86-64 far calls
and dlsym-stubs could also cause such stubs, but I didn't look for a test case
that the assumption broke.

This also adds DenseMapInfo<AssertingVH> so I can use DenseMaps instead of
std::maps.

llvm-svn: 84522
2009-10-19 18:49:59 +00:00
Chris Lattner 8d2e3a28d6 simplify code, reducing string thrashing.
llvm-svn: 84521
2009-10-19 18:49:14 +00:00
Chris Lattner 3334deb19b switch hidden gv stubs to use MachineModuleInfoMachO instead of a custom map.
llvm-svn: 84520
2009-10-19 18:44:38 +00:00
Chris Lattner 6462adcd20 use MachineModuleInfoMachO for non-lazy gv stubs instead of a private map.
llvm-svn: 84519
2009-10-19 18:38:33 +00:00
Anton Korobeynikov 8383c3d7f3 Revert r84295, this unbreaks llvm-gcc bootstrap on x86-64/linux
llvm-svn: 84516
2009-10-19 18:21:09 +00:00
Chris Lattner 24fcb826bd remove dead map
llvm-svn: 84513
2009-10-19 18:11:25 +00:00
Chris Lattner 84a493ca21 don't bother trying to avoid emitting redundant constant pool alignment directives.
llvm-svn: 84512
2009-10-19 18:08:02 +00:00
Chris Lattner 66ebfab3ab remove accidental comment.
llvm-svn: 84510
2009-10-19 18:03:41 +00:00
Chris Lattner e6da1826e8 emit .subsections_via_symbols through MCStreamer instead of textually.
llvm-svn: 84509
2009-10-19 18:03:08 +00:00
Chris Lattner ee9399acaa cleanup doFinalization -> EmitEndOfAsmFile.
llvm-svn: 84508
2009-10-19 17:59:19 +00:00
Nate Begeman 5ca7b345b9 PR 5245 - The imediate size target flag was not set on 3A-prefixed SSSE3 instructions.
llvm-svn: 84506
2009-10-19 17:31:16 +00:00
Dan Gohman 8f986672a1 Fix SplitBlockPredecessors' LoopInfo updating code to handle the case
where a loop's header is being split and it has predecessors which are not
contained by the most-nested loop which contains the loop.
This fixes PR5235.

llvm-svn: 84505
2009-10-19 16:04:50 +00:00
Dan Gohman b0db9917af Fix a typo in a comment.
llvm-svn: 84504
2009-10-19 14:56:05 +00:00
Dan Gohman 20a327b31f Change a few instance variables to be local variables.
llvm-svn: 84503
2009-10-19 14:52:05 +00:00
Dan Gohman 511d2e26dd Change instnamer to name arguments "arg" instead of "tmp" for clarity, and
to name basic blocks "bb" instead of "BB", for consistency.

llvm-svn: 84502
2009-10-19 14:47:32 +00:00
Torok Edwin 033f01c922 Fix PR5247, "lock addq" pattern (and other atomics), it DOES modify EFLAGS.
LLC was scheduling compares before the adds causing wrong branches to be taken
in programs, resulting in misoptimized code wherever atomic adds where used.

llvm-svn: 84485
2009-10-19 11:00:58 +00:00
Chris Lattner b0c23e81e7 various cleanups.
llvm-svn: 84471
2009-10-19 07:10:59 +00:00
Chris Lattner aa1332ed72 simplify.
llvm-svn: 84465
2009-10-19 05:51:03 +00:00
Chris Lattner 8d58f2f8ea clean up after metadata changes.
llvm-svn: 84463
2009-10-19 05:31:10 +00:00
Nate Begeman 18df82a20c Add support for matching shuffle patterns with palignr.
llvm-svn: 84459
2009-10-19 02:17:23 +00:00
Evan Cheng f0236e011e Spill slots cannot alias.
llvm-svn: 84432
2009-10-18 19:58:47 +00:00
Evan Cheng c436631a9c Turn on post-alloc scheduling for x86.
llvm-svn: 84431
2009-10-18 19:57:27 +00:00
Evan Cheng 936d87b39d Oops. I forgot to change the tests first. Disable post-alloc scheduling.
llvm-svn: 84425
2009-10-18 18:31:31 +00:00
Evan Cheng 0e9d9ca855 -Revert parts of 84326 and 84411. Distinquishing between fixed and non-fixed
stack slots and giving them different PseudoSourceValue's did not fix the
problem of post-alloc scheduling miscompiling llvm itself.
- Apply Dan's conservative workaround by assuming any non fixed stack slots can
alias other memory locations. This means a load from spill slot #1 cannot 
move above a store of spill slot #2. 
- Enable post-alloc scheduling for x86 at optimization leverl Default and above.

llvm-svn: 84424
2009-10-18 18:16:27 +00:00
Evan Cheng 0b8db2dab7 Only fixed stack objects and spill slots should be get FixedStack PseudoSourceValue.
llvm-svn: 84411
2009-10-18 06:27:36 +00:00
Chris Lattner c05471ea5b remove some nonascii weird stuff
llvm-svn: 84410
2009-10-18 05:27:44 +00:00
Chris Lattner 39afe7e657 add some fixme's
llvm-svn: 84408
2009-10-18 05:09:15 +00:00
Chris Lattner 1fa98f0d74 remove the IndMemRemPass, which only made sense for when malloc/free were intrinsic
instructions.

llvm-svn: 84404
2009-10-18 05:02:09 +00:00
Chris Lattner f4591d9a72 fix the other issue with ID's, hopefully really fixing the linux build.
llvm-svn: 84403
2009-10-18 04:58:34 +00:00
Chris Lattner 7883fc2ab1 fix some problems with ID definitions, which will hopefully fix the build bots.
llvm-svn: 84399
2009-10-18 04:27:14 +00:00
Chris Lattner 9e6882c8de add function passes for printing various dominator datastructures
accessible through opt.  Patch by Tobias Grosser!

llvm-svn: 84397
2009-10-18 04:10:40 +00:00
Chris Lattner da42426e04 make DOTGraphTraits public, patch by Tobias Grosser!
llvm-svn: 84396
2009-10-18 04:09:11 +00:00
Nick Lewycky bb1410ea8b Fix test/Bindings/Ocaml/vmcore.ml. When IRBuilder::CreateMalloc was removed,
LLVMBuildMalloc was reimplemented but with the bug that it didn't insert the
resulting instruction.

llvm-svn: 84374
2009-10-17 23:52:26 +00:00
Chris Lattner b2647b9e67 inline isGEP away.
llvm-svn: 84373
2009-10-17 23:48:54 +00:00
Daniel Dunbar 54279632f3 Fix my -Asserts warning fix.
llvm-svn: 84372
2009-10-17 23:15:04 +00:00
Chris Lattner f67d297eda Teach vm core to more aggressively fold 'trunc' constantexprs,
allowing it to simplify the crazy constantexprs in the testcases
down to something sensible.  This allows -std-compile-opts to
completely "devirtualize" the pointers to member functions in
the testcase from PR5176.

llvm-svn: 84368
2009-10-17 21:53:27 +00:00
Daniel Dunbar 04f049f2f5 Move UnescapeString to a static function for its sole client; its inefficient and broken.
llvm-svn: 84358
2009-10-17 20:43:42 +00:00
Daniel Dunbar 59449581b2 Remove llvm::EscapeString, raw_ostream::write_escaped is much faster.
llvm-svn: 84357
2009-10-17 20:43:29 +00:00
Daniel Dunbar 8eff29d805 Use raw_ostream::write_escaped instead of EscapeString.
llvm-svn: 84356
2009-10-17 20:43:19 +00:00
Daniel Dunbar 4108c43fd1 Add raw_ostream::write_escaped, for writing escaped strings.
llvm-svn: 84355
2009-10-17 20:43:08 +00:00
Mikhail Glushenkov 867f67301b First draft of the OptionPreprocessor.
More to follow...

llvm-svn: 84352
2009-10-17 20:09:29 +00:00
Nick Lewycky e63c2cb3b7 Emit newlines at the end of instructions too.
llvm-svn: 84348
2009-10-17 19:43:45 +00:00
Daniel Dunbar 77668004c4 Move StringMap's string has function into StringExtras.h
llvm-svn: 84344
2009-10-17 18:21:06 +00:00
Daniel Dunbar c099f1a0c5 Remove unnecessary include.
llvm-svn: 84336
2009-10-17 18:11:57 +00:00
Daniel Dunbar 47dfc9ae1b Suppress -Asserts warning.
llvm-svn: 84327
2009-10-17 09:33:00 +00:00
Evan Cheng 4729191bb2 Distinquish stack slots from other stack objects. They (and fixed objects) get FixedStack PseudoSourceValues.
llvm-svn: 84326
2009-10-17 09:20:14 +00:00
Evan Cheng 8759585aba Revert 84315 for now. Re-thinking the patch.
llvm-svn: 84321
2009-10-17 07:53:04 +00:00
Evan Cheng 0818d87ed1 Rename getFixedStack to getStackObject. The stack objects represented are not
necessarily fixed. Only those will negative frame indices are "fixed."

llvm-svn: 84315
2009-10-17 06:22:26 +00:00
Evan Cheng a6e4db8ff7 80 col violation.
llvm-svn: 84311
2009-10-17 06:05:11 +00:00
Chris Lattner 88b36f1140 Simplify some code (first hunk) and fix PR5208 (second hunk) by
updating the callgraph when introducing a call.

llvm-svn: 84310
2009-10-17 05:39:39 +00:00
Dan Gohman 650997fb0b Delete an obsolete comment.
llvm-svn: 84300
2009-10-17 01:37:38 +00:00
Victor Hernandez a3aaf85e23 Remove MallocInst from LLVM Instructions.
llvm-svn: 84299
2009-10-17 01:18:07 +00:00
Dan Gohman 0d3d9ee03e Enhance CodePlacementOpt's unconditional intra-loop branch elimination logic
to be more general and understand more varieties of loops.

Teach CodePlacementOpt to reorganize the basic blocks of a loop so that
they are contiguous. This also includes a fair amount of logic for preserving
fall-through edges while doing so. This fixes a BranchFolding-ism where blocks
which can't be made to use a fall-through edge and don't conveniently fit
anywhere nearby get tossed out to the end of the function.

llvm-svn: 84295
2009-10-17 00:32:43 +00:00
Victor Hernandez c7d6a8327c Autoupgrade malloc insts to malloc calls.
Update testcases that rely on malloc insts being present.

Also prematurely remove MallocInst handling from IndMemRemoval and RaiseAllocations to help pass tests in this incremental step.

llvm-svn: 84292
2009-10-17 00:00:19 +00:00
Victor Hernandez 264da3274e HeapAllocSRoA also needs to check if malloc array size can be computed.
llvm-svn: 84288
2009-10-16 23:12:25 +00:00
Mon P Wang b1baaf5ab9 Allow widening of extract subvector
llvm-svn: 84279
2009-10-16 22:05:48 +00:00
Devang Patel 12524fd2e5 Do not emit name entry for a pointer type.
llvm-svn: 84276
2009-10-16 21:27:43 +00:00
Evan Cheng 007ceb4603 Change createPostRAScheduler so it can be turned off at llc -O1.
llvm-svn: 84273
2009-10-16 21:06:15 +00:00
Dan Gohman 99429a00ff Move zext and sext casts fed by loads into the same block as the
load, to help SelectionDAG fold them into the loads, unless
conditions are unfavorable.

llvm-svn: 84271
2009-10-16 20:59:35 +00:00
Devang Patel 8f842d31fd Parse PHI instruction with attached metadata.
llvm-svn: 84264
2009-10-16 18:45:49 +00:00
Devang Patel d0099a94db If there is not any llvm instruction associated with each lexical scope encoded in debug info then create such scope on demand for variable info.
llvm-svn: 84262
2009-10-16 18:18:03 +00:00
Victor Hernandez 6f834660c9 Invert isSafeToGetMallocArraySize check because we return NULL when we don't know the size.
Thanks to Duncan Sands for noticing this bug.

llvm-svn: 84261
2009-10-16 18:08:17 +00:00
Duncan Sands 0058c7bcb0 Strip trailing white space.
llvm-svn: 84256
2009-10-16 15:20:13 +00:00
Benjamin Kramer ca019e704c Update CMake file.
llvm-svn: 84252
2009-10-16 10:29:08 +00:00
Sanjiv Gupta 89259d7929 Cleaned up some code. No functionality change.
llvm-svn: 84251
2009-10-16 08:58:34 +00:00
Evan Cheng 343d17d762 I am no spelling bee.
llvm-svn: 84250
2009-10-16 06:18:09 +00:00
Evan Cheng 03da4dba59 Enable post-alloc scheduling for all ARM variants except for Thumb1.
llvm-svn: 84249
2009-10-16 06:11:08 +00:00
Evan Cheng 8b614768f8 If post-alloc scheduler is not enabled, it should return false, not true.
llvm-svn: 84248
2009-10-16 06:10:34 +00:00
Zhongxing Xu 47062ce503 Indent code.
llvm-svn: 84247
2009-10-16 05:42:28 +00:00
Evan Cheng 8cd7c92613 Add comment.
llvm-svn: 84246
2009-10-16 05:33:58 +00:00
Evan Cheng 9c096840a0 80 column violation.
llvm-svn: 84244
2009-10-16 05:18:39 +00:00
Bob Wilson 01404ecec7 Fix more NEON instruction encodings.
Patch by Johnny Chen.

llvm-svn: 84243
2009-10-16 03:58:44 +00:00
Chris Lattner 4794b2b27b Add half precision floating point support (float16) to APFloat,
patch by Peter Johnson! (PR5195)

llvm-svn: 84239
2009-10-16 02:13:51 +00:00
Chris Lattner 27f2049305 add haiku support, patch by Paul Davey!
llvm-svn: 84238
2009-10-16 02:06:30 +00:00
Daniel Dunbar 5d9134747b MC: Set symbol values in MachO MCStreamer.
llvm-svn: 84236
2009-10-16 01:58:23 +00:00
Daniel Dunbar e024def785 Minor formatting tweaks.
llvm-svn: 84235
2009-10-16 01:58:15 +00:00
Daniel Dunbar 8e6d889d4c MC: Switch assembler API to using MCExpr instead of MCValue.
llvm-svn: 84234
2009-10-16 01:58:03 +00:00
Daniel Dunbar c3bd60e393 MC: Remove unneeded context argument to MCExpr::Evaluate*.
llvm-svn: 84233
2009-10-16 01:57:52 +00:00
Daniel Dunbar 5f339244fb MC: Tweak variable assignment diagnostics, and make reassignment of non-absolute
variables and symbols invalid.

llvm-svn: 84232
2009-10-16 01:57:39 +00:00
Daniel Dunbar d20cda028a MC: When parsing a variable reference, substitute absolute variables immediately
since they are allowed to be redefined.

llvm-svn: 84230
2009-10-16 01:34:54 +00:00
Daniel Dunbar 17b9027b5c MC: Move assembler variable values from MCContext to MCSymbol.
llvm-svn: 84229
2009-10-16 01:33:57 +00:00
Daniel Dunbar 584a1b25ef MC: Switch MCContext value table to storing MCExprs.
llvm-svn: 84228
2009-10-16 01:33:11 +00:00
Evan Cheng 8ec25937f1 When checking aliases between phi sources and V2, we know the sources are not themselves phi nodes. However, V2 may be. Call aliasCheck with V2 first to potentially eliminate a std::swap call.
llvm-svn: 84226
2009-10-16 00:33:09 +00:00
Bob Wilson 419160bd79 Revert svn r80498 and replace it with a different solution. The only problem
I can see with the original code was that I forgot that this runs after
type legalization and hence the result type will always be i32. (Custom
legalization of EXTRACT_VECTOR_ELT is only enabled for vector types with
8- and 16-bit elements.)

Regarding the FIXME comment: any information about sign and zero-extension
should be captured by separate extension operations.  The DAG combiner should
handle those to produce either VGETLANEu or VGETLANEs, and that seems to be
working now.  If there are cases that we're missing, let me know.

llvm-svn: 84218
2009-10-15 23:12:05 +00:00
Anton Korobeynikov 49e417c52c Dllexport stuff cleanup:
1. Emit external function type information for all COFF targets since it's
a feature of object format
2. Emit linker directives only for cygming (since this is ld-specific stuff)

llvm-svn: 84214
2009-10-15 22:36:18 +00:00
Sandeep Patel 3f23601b00 Branches must be the last instruction in a Thumb2 IT block. Approved by Evan Cheng.
llvm-svn: 84212
2009-10-15 22:25:32 +00:00
Bob Wilson 4138b11c93 Fix encoding bits for N3VLInt3_QHS multiclass with 8-bit elements.
Patch by Johnny Chen.

llvm-svn: 84206
2009-10-15 21:57:47 +00:00
Kevin Enderby 644de27659 Fix ARM memory operand parsing of post indexing with just a base register, that
is just "[Rn]" and no tailing comma with an offset, etc.

llvm-svn: 84205
2009-10-15 21:42:45 +00:00
Bob Wilson 2f9be50774 Fix a potential performance problem in placing ARM constant pools.
In the case where there are no good places to put constants and we fall back
upon inserting unconditional branches to make new blocks, allow all constant
pool references in range of those blocks to put constants there, even if that
means resetting the "high water marks" for those references.  This will still
terminate because you can't keep splitting blocks forever, and in the bad
cases where we have to split blocks, it is important to avoid splitting more
than necessary.

llvm-svn: 84202
2009-10-15 20:49:47 +00:00
Kevin Enderby 146dcf2ab5 More bits of the ARM target assembler for llvm-mc, code added to parse labels
as expressions, code for parsing a few arm specific directives (still needs
the MCStreamer calls for these).  Some clean up of the operand parsing code
and adding some comments.

llvm-svn: 84201
2009-10-15 20:48:48 +00:00
Evan Cheng e4a2117161 Remove X86Subtarget::IsLinux. It's no longer being used.
llvm-svn: 84200
2009-10-15 20:23:21 +00:00
Victor Hernandez 13020b1faf Fix bug where array malloc with unexpected computation of the size argument resulted in MallocHelper
identifying the malloc as a non-array malloc.  This broke GlobalOpt's optimization of stores of mallocs 
to global variables.

The fix is to classify malloc's into 3 categories:
1. non-array mallocs
2. array mallocs whose array size can be determined
3. mallocs that cannot be determined to be of type 1 or 2 and cannot be optimized

getMallocArraySize() returns NULL for category 3, and all users of this function must avoid their 
malloc optimization if this function returns NULL.

Eventually, currently unexpected codegen for computing the malloc's size argument will be supported in
isArrayMalloc() and getMallocArraySize(), extending malloc optimizations to those examples.

llvm-svn: 84199
2009-10-15 20:14:52 +00:00
Benjamin Kramer 74c35c126a Add files Sanjiv forgot.
llvm-svn: 84196
2009-10-15 19:46:34 +00:00
Sanjiv Gupta a07cae65e3 Re-apply 84180 with the fixed test case.
llvm-svn: 84195
2009-10-15 19:26:25 +00:00
Jakob Stoklund Olesen 460ceae432 Move Blackfin intrinsics into the Target/Blackfin directory.
llvm-svn: 84194
2009-10-15 18:50:52 +00:00
Jakob Stoklund Olesen e4197250cc Report errors correctly for unselected target intrinsics.
llvm-svn: 84193
2009-10-15 18:50:03 +00:00
Jakob Stoklund Olesen 923b5aa973 Clean up TargetIntrinsicInfo API. Add pure virtual methods.
llvm-svn: 84192
2009-10-15 18:49:26 +00:00
Nick Lewycky d708a4908c Add missing break statements! Thanks to Duncan Sands for pointing this out!
llvm-svn: 84191
2009-10-15 18:48:58 +00:00
Daniel Dunbar 3b5bdd536b Revert "Complete Rewrite of AsmPrinter, TargetObjectFile based on new
PIC16Section class", it breaks globals.ll.

llvm-svn: 84184
2009-10-15 15:02:14 +00:00
Sanjiv Gupta 917db86b42 Complete Rewrite of AsmPrinter, TargetObjectFile based on new PIC16Section class
derived from MCSection.

llvm-svn: 84180
2009-10-15 10:10:43 +00:00
Sanjiv Gupta 7357636091 Few changes to comply with new DebugInfo Metadata representation.
llvm-svn: 84179
2009-10-15 09:48:25 +00:00
Nick Lewycky 9cec2380f2 Teach basicaa about memcpy/memmove/memset. The length argument can be used to
improve alias results if constant, and the source pointer can't be modified.

llvm-svn: 84175
2009-10-15 07:11:24 +00:00
Nick Lewycky d7216cf74c Teach BasicAA to use the size parameter of the memory use marker intrinsics.
llvm-svn: 84174
2009-10-15 06:12:11 +00:00
Bob Wilson 68ead6c7a8 Be smarter about reusing constant pool entries.
llvm-svn: 84173
2009-10-15 05:52:29 +00:00
Bob Wilson b4f2a85fe4 Fix another problem with ARM constant pools. Radar 7303551.
When ARMConstantIslandPass cannot find any good locations (i.e., "water") to
place constants, it falls back to inserting unconditional branches to make a
place to put them.  My recent change exposed a problem in this area.  We may
sometimes append to the same block more than one unconditional branch.  The
symptoms of this are that the generated assembly has a branch to an undefined
label and running llc with -debug will cause a seg fault.

This happens more easily since my change to prevent CPEs from moving from
lower to higher addresses as the algorithm iterates, but it could have
happened before.  The end of the block may be in range for various constant
pool references, but the insertion point for new CPEs is not right at the end
of the block -- it is at the end of the CPEs that have already been placed
at the end of the block.  The insertion point could be out of range.  When
that happens, the fallback code will always append another unconditional
branch if the end of the block is in range.

The fix is to only append an unconditional branch if the block does not
already end with one.  I also removed a check to see if the constant pool load
instruction is at the end of the block, since that is redundant with
checking if the end of the block is in-range.

There is more to be done here, but I think this fixes the immediate problem.

llvm-svn: 84172
2009-10-15 05:10:36 +00:00
Chris Lattner c855b45b78 only try to fold constantexpr operands when the worklist is first populated,
don't bother every time going around the main worklist.  This speeds up a 
release-asserts opt -std-compile-opts on 403.gcc by about 4% (1.5s).  It
seems to speed up the most expensive instances of instcombine by ~10%.

llvm-svn: 84171
2009-10-15 04:59:28 +00:00
Chris Lattner dd1f68a10c don't bother calling ConstantFoldInstruction unless there is a use of the
instruction (which disqualifies stores, unreachable, etc) and at least the
first operand is a constant.  This filters out a lot of obvious cases that
can't be folded.  Also, switch the IRBuilder to a TargetFolder, which tries
harder.

llvm-svn: 84170
2009-10-15 04:13:44 +00:00
Nick Lewycky fcb27ad54c Take advantage of TargetData when available; we know that the atomic intrinsics
only dereference the element they point to directly with no pointer arithmetic.

llvm-svn: 84159
2009-10-15 00:36:35 +00:00
Dan Gohman c9af381df8 Make CodePlacementOpt align loops, rather than loop headers. The
header is just the entry block to the loop, and it needn't be at
the top of the loop in the code layout.

Remove the code that suppressed loop alignment for outer loops,
so that outer loops are aligned.

llvm-svn: 84158
2009-10-15 00:36:22 +00:00
Evan Cheng 2f61e0946a When LiveVariables is adding implicit-def to model "partial dead", add the earlyclobber marker if the superreg def has it.
llvm-svn: 84153
2009-10-14 23:39:27 +00:00
Evan Cheng 70b1fa5a24 Print earlyclobber for implicit-defs as well.
llvm-svn: 84152
2009-10-14 23:37:31 +00:00
Bob Wilson cfcf6bc70d Fix instruction encoding bits for NEON VPADAL.
Patch by Johnny Chen.

llvm-svn: 84146
2009-10-14 21:43:17 +00:00
Bob Wilson ad03cf02f6 Remove unused variables to fix build warning.
llvm-svn: 84144
2009-10-14 21:40:45 +00:00
Jim Grosbach b1d6fde13e Make loop not recalc getNumOperands() each time around
llvm-svn: 84138
2009-10-14 21:22:39 +00:00
Devang Patel 6875c5ebe4 Add support to record DbgScope as inlined scope.
llvm-svn: 84134
2009-10-14 21:08:09 +00:00
Jim Grosbach 02f5588f62 quiet compiler warning
llvm-svn: 84133
2009-10-14 21:07:11 +00:00
Jim Grosbach 94068707e1 Inst{11-8} for vshl should be 0b0101, not 0b1111.
Refs: A7-17 & A8-750.

Patch by Johnny Chen.

llvm-svn: 84131
2009-10-14 20:31:01 +00:00
Bob Wilson 1a791eedbf Set instruction encoding bits 4 and 7 for ARM register-register and
register-shifted-register instructions.  Patch by Johnny Chen.

llvm-svn: 84124
2009-10-14 19:00:24 +00:00
Bob Wilson c350cdf3b3 Refactor code to select NEON VST intrinsics.
llvm-svn: 84122
2009-10-14 18:32:29 +00:00
Devang Patel 92f8619923 Use isVoidTy()
llvm-svn: 84118
2009-10-14 17:29:00 +00:00
Bob Wilson 12b4799787 Refactor code to select NEON VLD intrinsics.
llvm-svn: 84117
2009-10-14 17:28:52 +00:00
Devang Patel ebaa76ed0d Add copyMD to copy metadata from one instruction to another instruction.
llvm-svn: 84113
2009-10-14 17:02:49 +00:00
Bob Wilson 93117bc499 More refactoring. NEON vst lane intrinsics can share almost all the code for
vld lane intrinsics.

llvm-svn: 84110
2009-10-14 16:46:45 +00:00
Bob Wilson 4145e3ac8d Refactor code for selecting NEON load lane intrinsics.
llvm-svn: 84109
2009-10-14 16:19:03 +00:00
Duncan Sands 8e6ccb65df I don't see any point in having both eh.selector.i32 and eh.selector.i64,
so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector.
Likewise for eh.typeid.for.  This aligns us with gcc, which always uses a
32 bit value for the selector on all platforms.  My understanding is that
the register allocator used to assert if the selector intrinsic size didn't
match the pointer size, and this was the reason for introducing the two
variants.  However my testing shows that this is no longer the case (I
fixed some bugs in selector lowering yesterday, and some more today in the
fastisel path; these might have caused the original problems).

llvm-svn: 84106
2009-10-14 16:11:37 +00:00
Chris Lattner 6b9044db01 make instcombine's instruction sinking more aggressive in the
presence of PHI nodes.

llvm-svn: 84103
2009-10-14 15:21:58 +00:00
Evan Cheng b3ccb6498c Clear VisitedPHIs after use.
llvm-svn: 84080
2009-10-14 06:46:26 +00:00
Evan Cheng c1eed9d120 Another BasicAA fix. If a value does not alias a GEP's base pointer, then it
cannot alias the GEP. GEP pointer alias rule states this clearly:
A pointer value formed from a getelementptr instruction is associated with the
addresses associated with the first operand of the getelementptr.

llvm-svn: 84079
2009-10-14 06:41:49 +00:00
Evan Cheng f92f5557ee More code clean up based on patch feedback.
llvm-svn: 84074
2009-10-14 05:22:03 +00:00
Evan Cheng 31565b3e9f Change VisitedPHIs into an instance variable that's freed by each alias() call.
llvm-svn: 84072
2009-10-14 05:05:02 +00:00
Dan Gohman 0be8c2b0e3 Make isSafeToClobberEFLAGS more aggressive. Teach it to scan backwards
(for uses marked kill and defs marked dead) a few instructions in
addition to forwards. Also, increase the maximum number of instructions
to scan, as it appears to help in a fair number of cases.

llvm-svn: 84061
2009-10-14 00:08:59 +00:00
Dan Gohman df777edea9 This remat entry is basically done. There are hooks to allow targets
to remat non-load instructions as loads, and the remat code now uses
the UnmodeledSideEffects flags, MachineMemOperands, and similar things
to decide which instructions are valid for rematerialization.

llvm-svn: 84060
2009-10-14 00:02:01 +00:00
Dan Gohman 0aa63c97ce Add a few README.txt items.
llvm-svn: 84059
2009-10-13 23:58:05 +00:00