Commit Graph

12233 Commits

Author SHA1 Message Date
Jim Grosbach 5bde1cbd93 of -> or
llvm-svn: 85065
2009-10-25 19:14:48 +00:00
Jim Grosbach 5a9788b979 80-column cleanup
llvm-svn: 85064
2009-10-25 18:55:46 +00:00
Sanjiv Gupta b18a46806b Reapply 85006 with a minor fix.
llvm-svn: 85052
2009-10-25 08:14:11 +00:00
Evan Cheng 2e7dee5f23 Add ARM getMatchingSuperRegClass to handle S / D / Q cross regclass coalescing.
llvm-svn: 85049
2009-10-25 07:53:28 +00:00
Evan Cheng 5d1b849658 Don't forget subreg indices when folding load / store.
llvm-svn: 85048
2009-10-25 07:52:27 +00:00
Nick Lewycky 974e12b2d3 Remove includes of Support/Compiler.h that are no longer needed after the
VISIBILITY_HIDDEN removal.

llvm-svn: 85043
2009-10-25 06:57:41 +00:00
Nick Lewycky 02d5f77d26 Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.

llvm-svn: 85042
2009-10-25 06:33:48 +00:00
Chris Lattner 13b8b56dd4 this is done.
llvm-svn: 85041
2009-10-25 06:17:51 +00:00
Nick Lewycky 54d7179a25 Remove ICmpInst::isSignedPredicate which was a reimplementation
CmpInst::isSigned.

llvm-svn: 85037
2009-10-25 05:20:17 +00:00
Sanjiv Gupta 9e8d42f295 Revert back 85006 for now as it breaks PIC16 tests.
llvm-svn: 85008
2009-10-24 18:19:41 +00:00
Sanjiv Gupta 055c3305a1 Adding support for placing global objects in shared data memory.
llvm-svn: 85006
2009-10-24 18:02:44 +00:00
Evan Cheng 46ed1f8341 80 col violation.
llvm-svn: 84986
2009-10-24 02:07:42 +00:00
Jim Grosbach e2871d69db Restrict Thumb1 register allocation to low registers, even for instructions that
can access the hi regs. Our prologue and epilogue code doesn't know how to
properly handle save/restore of the hi regs, so things go badly when we alloc
them.

llvm-svn: 84982
2009-10-24 00:19:24 +00:00
Jim Grosbach 22b2c011f9 FIXME no longer applies. R12 and R3 are available for allocation
llvm-svn: 84977
2009-10-23 23:07:42 +00:00
Chris Lattner 851193b873 some stuff is done, we still have constantexpr simplification to do.
llvm-svn: 84943
2009-10-23 07:00:55 +00:00
Evan Cheng 8b86efefec X86 needs critical path anti-dependency breaking.
llvm-svn: 84931
2009-10-23 05:57:35 +00:00
David Goodwin 02ad4cb32e Allow the target to select the level of anti-dependence breaking that should be performed by the post-RA scheduler. The default is none.
llvm-svn: 84911
2009-10-22 23:19:17 +00:00
Bob Wilson 9d763cc3f8 Revert 84843. Evan, this was breaking some of the if-conversion tests.
llvm-svn: 84868
2009-10-22 16:52:21 +00:00
Benjamin Kramer c77f8634e5 Shift art to the right to keep GCC from complaining about multi-line comments.
llvm-svn: 84849
2009-10-22 09:28:49 +00:00
Evan Cheng 3615b9bef3 Move if-conversion before post-regalloc scheduling so the predicated instruction get scheduled properly.
llvm-svn: 84843
2009-10-22 06:48:32 +00:00
Evan Cheng 943f4f41f2 Load / store multiple was missing opportunites when the load / store bundles are at the end of the bb. Test case is already in, the bug is exposed by subsequent commit.
llvm-svn: 84842
2009-10-22 06:47:35 +00:00
Evan Cheng 5457a96b63 Trim more includes.
llvm-svn: 84832
2009-10-22 05:11:00 +00:00
Evan Cheng 344fcd9d61 Trim include.
llvm-svn: 84831
2009-10-22 05:08:49 +00:00
Chris Lattner 1448799377 fix warning.
llvm-svn: 84826
2009-10-22 03:42:27 +00:00
Evan Cheng 0f55e9ce2e Don't generate sbfx / ubfx with negative lsb field. Patch by David Conrad.
llvm-svn: 84813
2009-10-22 00:40:00 +00:00
Anton Korobeynikov f1ad2c618a Use special DAG-to-DAG preprocessing to allow mem-mem instructions to be selected.
Yay for ASCII graphics!

llvm-svn: 84808
2009-10-22 00:16:00 +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
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
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
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
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
Sanjiv Gupta c5804f3cb6 Build shared lib instead of an archive.
llvm-svn: 84764
2009-10-21 17:27:23 +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
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
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
Chris Lattner bc69313909 IPSCCP is missing stuff.
llvm-svn: 84725
2009-10-21 01:10:37 +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
Daniel Dunbar a470eac6a1 Fix -Asserts warning.
llvm-svn: 84687
2009-10-20 22:10:05 +00:00
Jim Grosbach cccf5084a3 Disable by default while debugging
llvm-svn: 84669
2009-10-20 20:31:31 +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 3d9d78463c Following r84485, add Defs = [EFLAGS] to the 32-bit lock instructions too.
llvm-svn: 84652
2009-10-20 18:14:49 +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
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
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
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
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
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
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
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
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
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
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
Nate Begeman 18df82a20c Add support for matching shuffle patterns with palignr.
llvm-svn: 84459
2009-10-19 02:17:23 +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
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
Victor Hernandez a3aaf85e23 Remove MallocInst from LLVM Instructions.
llvm-svn: 84299
2009-10-17 01:18:07 +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
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 8cd7c92613 Add comment.
llvm-svn: 84246
2009-10-16 05:33:58 +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
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
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 923b5aa973 Clean up TargetIntrinsicInfo API. Add pure virtual methods.
llvm-svn: 84192
2009-10-15 18:49:26 +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
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
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 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
Bob Wilson 12b4799787 Refactor code to select NEON VLD intrinsics.
llvm-svn: 84117
2009-10-14 17:28:52 +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