Commit Graph

33136 Commits

Author SHA1 Message Date
Devang Patel dcb99d310a Remove meaningless const.
Pass StringRef by value.

llvm-svn: 84804
2009-10-22 00:10:15 +00:00
Dan Gohman ff97acd8f1 Revert the main portion of r31856. It was causing BranchFolding
to break up CFG diamonds by banishing one of the blocks to the end of
the function, which is bad for code density and branch size.

This does pessimize MultiSource/Benchmarks/Ptrdist/yacr2, the
benchmark cited as the reason for the change, however I've examined
the code and it looks more like a case of gaming a particular
branch than of being generally applicable.

llvm-svn: 84803
2009-10-22 00:03:58 +00:00
Devang Patel 27e0be274e Derive metadata hierarchy from Value instead of User.
llvm-svn: 84801
2009-10-21 23:57:35 +00:00
Chris Lattner 966526cbfb revert r84754, it isn't the right approach. Edwin, please propose
patches for fixes like this instead of committing them directly.

llvm-svn: 84799
2009-10-21 23:41:58 +00:00
Jim Grosbach f2e74df12e Missing piece of the ARM frame index post-scavenging conditionalization
llvm-svn: 84798
2009-10-21 23:40:56 +00:00
Benjamin Kramer 8b051b8240 Fix thinko noticed by Chris.
llvm-svn: 84797
2009-10-21 23:29:32 +00:00
Dale Johannesen 1cfb958b00 Rename msasm to alignstack per review.
llvm-svn: 84795
2009-10-21 23:28:00 +00:00
Benjamin Kramer 22146fbc5f Remove pointless return; at end of function.
llvm-svn: 84794
2009-10-21 23:27:54 +00:00
Jim Grosbach c16c8c707b The spill restore needs to be resolved to the SP/FP just like the spill
llvm-svn: 84792
2009-10-21 22:59:56 +00:00
Jim Grosbach 05536f50dc Conditionalize ARM/T2 frame index post-scavenging while working out fixes
for a few bugs.

llvm-svn: 84791
2009-10-21 22:59:24 +00:00
Benjamin Kramer b378347796 Simplify code. No intended functionality change.
llvm-svn: 84790
2009-10-21 22:55:51 +00:00
Devang Patel 2505c1e17a Use StringRef.
llvm-svn: 84786
2009-10-21 21:57:13 +00:00
Bob Wilson 854530a7dd Most of the NEON shuffle instructions do not support 64-bit element types.
llvm-svn: 84785
2009-10-21 21:36:27 +00:00
Devang Patel 49914e6eb3 Do not use SmallVector to store MDNode elements.
llvm-svn: 84784
2009-10-21 21:25:09 +00:00
Anton Korobeynikov b45d621ab1 Revert r84764, it breaks mingw build
llvm-svn: 84783
2009-10-21 21:15:18 +00:00
Jim Grosbach a93ca3c637 Improve handling of immediates by splitting 32-bit immediates into two 16-bit
immediate operands when they will fit into the using instruction.

llvm-svn: 84778
2009-10-21 20:44:34 +00:00
Anton Korobeynikov 9e92857b38 Add DAG printing for RMW stuff debugging
llvm-svn: 84776
2009-10-21 19:18:28 +00:00
Anton Korobeynikov ccfa3e31f7 RMW preprocessing stuff was incorrect. Grab the stuff from x86 backend and disable some tests until it will be clever enough to handle them.
llvm-svn: 84775
2009-10-21 19:17:55 +00:00
Anton Korobeynikov 5399c2d05e Implement branch folding
llvm-svn: 84774
2009-10-21 19:17:18 +00:00
Anton Korobeynikov 2983dcb1f2 Cosmetic changes, no functionality changes
llvm-svn: 84773
2009-10-21 19:16:49 +00:00
Victor Hernandez be9e179104 Make changes to rev 84292 as requested by Chris Lattner.
Most changes are cleanup, but there is 1 correctness fix:
I fixed InstCombine so that the icmp is removed only if the malloc call is removed (which requires explicit removal because the Worklist won't DCE any calls since they can have side-effects).

llvm-svn: 84772
2009-10-21 19:11:40 +00:00
Bob Wilson 0db964a3a0 Fix NEON VST2LN instruction encoding.
Patch by Johnny Chen.

llvm-svn: 84767
2009-10-21 17:54:01 +00:00
Bob Wilson 87671da29a Revert 84732. It was the wrong fix.
llvm-svn: 84766
2009-10-21 17:52:34 +00:00
Devang Patel 3eb5d33b65 Incorporate various suggestions Chris gave during metadata review.
- i < getNumElements()  instead of getNumElements() > i
- Make setParent() private
- Fix use of resizeOperands
- Reset HasMetadata bit after removing all metadata attached to an instruction
- Efficient use of iterators

llvm-svn: 84765
2009-10-21 17:33:41 +00:00
Sanjiv Gupta c5804f3cb6 Build shared lib instead of an archive.
llvm-svn: 84764
2009-10-21 17:27:23 +00:00
Jim Grosbach bc30143451 Cleanup of frame index scavenging. Better code flow and more accurately
handles T2 and ARM use cases.

llvm-svn: 84761
2009-10-21 15:26:21 +00:00
Torok Edwin 1539a352a6 Fix PR5262: when folding select into PHI, make sure all operands are available
in the PHI's Basic Block. This uses a conservative approach, because we don't
have dominator info in instcombine.

llvm-svn: 84754
2009-10-21 10:49:00 +00:00
Sanjiv Gupta 47ea743618 Add a pass to overlay pic16 data sections for function frame and automatic
variables. This pass can be invoked by llvm-ld or opt to traverse over the call graph 
to detect what function frames and their automatic variables can be overlaid.
Currently this builds an archive , but needs to be changed to a loadable module.

llvm-svn: 84753
2009-10-21 10:42:44 +00:00
Evan Cheng 786b15fe12 Match more patterns to movt.
llvm-svn: 84751
2009-10-21 08:15:52 +00:00
Evan Cheng f781bd8947 Need a comma after imp-use.
llvm-svn: 84749
2009-10-21 07:56:02 +00:00
Douglas Gregor 05f77d5006 De-bork CMake build
llvm-svn: 84744
2009-10-21 06:01:54 +00:00
Chris Lattner 8ed7bef409 make GVN work better when TD is not around:
"In the existing code, if the load and the value to replace it with are
of different types *and* target data is available, it tries to use the
target data to coerce the replacement value to the type of the load.
Otherwise, it skips all effort to handle the type mismatch and just
feeds the wrongly-typed replacement value to replaceAllUsesWith, which
triggers an assertion.

The patch replaces it with an outer if checking for type mismatch, and
an inner if-else that checks whether target data is available and, if
not, returns false rather than trying to replace the load."

Patch by Kenneth Uildriks!

llvm-svn: 84739
2009-10-21 04:11:19 +00:00
Chris Lattner 175d04c90f tidy
llvm-svn: 84738
2009-10-21 04:10:24 +00:00
Bob Wilson 5b5cb92816 Fix some more NEON instruction encoding problems.
Thanks to Johnny Chen for discovering the problem.

llvm-svn: 84732
2009-10-21 02:27:20 +00:00
Devang Patel 1d7f7d21dc Do not remove dead metadata for now.
llvm-svn: 84731
2009-10-21 02:21:34 +00:00
Bob Wilson bd3650cc84 Leave some NEON instruction encoding bits unspecified instead of setting
a default value of zero.  This is important for decoding the instructions.
Patch by Johnny Chen, with some changes from me, too.

llvm-svn: 84730
2009-10-21 02:15:46 +00:00
Dan Gohman 682a2d154a Revert r84658 and r84691. They were causing llvm-gcc bootstrap to fail.
llvm-svn: 84727
2009-10-21 01:44:44 +00:00
Chris Lattner bc69313909 IPSCCP is missing stuff.
llvm-svn: 84725
2009-10-21 01:10:37 +00:00
Jeffrey Yasskin 08fa03c740 Delete the MacOSJITEventListener per echristo's request. It was disabled by
default and didn't work anyway.

llvm-svn: 84720
2009-10-21 00:43:48 +00:00
Anton Korobeynikov 7099d0c19c Add note
llvm-svn: 84713
2009-10-21 00:14:15 +00:00
Anton Korobeynikov e43af4a085 Be crazy and assert in case of unsupported modifier passed.
llvm-svn: 84712
2009-10-21 00:13:58 +00:00
Anton Korobeynikov 11074fa73e Handle external symbols
llvm-svn: 84711
2009-10-21 00:13:42 +00:00
Anton Korobeynikov cc55b9086d Distinguish between pcrel imm operands and 'normal' ones. Fix fixes gross weirdness of asmprinting.
llvm-svn: 84710
2009-10-21 00:13:25 +00:00
Anton Korobeynikov 94ba9c27b0 Add basic block operands & jump kinds
llvm-svn: 84709
2009-10-21 00:13:05 +00:00
Anton Korobeynikov 8a06a4e5c8 Ignore all implicit reg operands
llvm-svn: 84708
2009-10-21 00:12:44 +00:00
Anton Korobeynikov 196b0e5431 Add a workaround for different memops prefixes
llvm-svn: 84707
2009-10-21 00:12:27 +00:00
Anton Korobeynikov 4e32bff382 Checkpoint MCInst printer. We (almostly) able to print global / JT / constpool entries
llvm-svn: 84706
2009-10-21 00:12:08 +00:00
Anton Korobeynikov 7fbc0a50d5 Add simple operand printing stuff
llvm-svn: 84704
2009-10-21 00:11:27 +00:00
Anton Korobeynikov 6e78029d82 Add experimental MSP430 MCInstLowering stuff
llvm-svn: 84703
2009-10-21 00:11:08 +00:00
Anton Korobeynikov daaa2f0c31 Wire up MSP430 printMCInst() method
llvm-svn: 84702
2009-10-21 00:10:47 +00:00
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