Commit Graph

859 Commits

Author SHA1 Message Date
Jim Grosbach 980d94164d Convert to FileCheck
llvm-svn: 88942
2009-11-16 19:46:46 +00:00
Jim Grosbach c670bdc311 tbb opt off by default
llvm-svn: 88921
2009-11-16 17:24:45 +00:00
Jim Grosbach 01c1cae34d Detect need for autoalignment of the stack earlier to catch spills more
conservatively. eliminateFrameIndex() machinery adjust to handle addr mode
6 (vld1/vst1) used for spills. Fix tests to expect aligned Q-reg spilling

llvm-svn: 88874
2009-11-15 21:45:34 +00:00
Jim Grosbach f16a3b7a9f remove xfail
llvm-svn: 88817
2009-11-14 21:57:35 +00:00
Evan Cheng 66401c90da When expanding t2STRDi8 r, r to two stores, add kill markers correctly.
llvm-svn: 88734
2009-11-14 01:50:00 +00:00
Jim Grosbach 1025a4998b Clean up testcase a bit. Simplify case blocks and adjust switch instruction to not take an undefined value as input.
llvm-svn: 86997
2009-11-12 17:19:09 +00:00
Benjamin Kramer 5218176bc6 Fix typo in run line.
llvm-svn: 86984
2009-11-12 12:35:27 +00:00
Evan Cheng 5d85a46f76 RegScavenger::enterBasicBlock should always reset register state.
llvm-svn: 86972
2009-11-12 07:49:10 +00:00
Evan Cheng 85a9f430e9 - Teach LSR to avoid changing cmp iv stride if it will create an immediate that
cannot be folded into target cmp instruction.
- Avoid a phase ordering issue where early cmp optimization would prevent the
  later count-to-zero optimization.
- Add missing checks which could cause LSR to reuse stride that does not have
  users.
- Fix a bug in count-to-zero optimization code which failed to find the pre-inc
  iv's phi node.
- Remove, tighten, loosen some incorrect checks disable valid transformations.
- Quite a bit of code clean up.

llvm-svn: 86969
2009-11-12 07:35:05 +00:00
Dan Gohman 64b5d0f468 Add support for tail duplication to BranchFolding, and extend
tail merging support to handle more cases.
 - Recognize several cases where tail merging is beneficial even when
   the tail size is smaller than the generic threshold.
 - Make use of MachineInstrDesc::isBarrier to help detect
   non-fallthrough blocks.
 - Check for and avoid disrupting fall-through edges in more cases.

llvm-svn: 86871
2009-11-11 19:48:59 +00:00
Jim Grosbach 47e3bcf180 Update test
llvm-svn: 86614
2009-11-09 22:59:01 +00:00
Jim Grosbach d7cf55cd0e Use Unified Assembly Syntax for the ARM backend.
llvm-svn: 86494
2009-11-09 00:11:35 +00:00
Evan Cheng a8e8a7c976 Refactor code. Fix a potential missing check. Teach isIdentical() about tLDRpci_pic.
llvm-svn: 86330
2009-11-07 04:04:34 +00:00
Evan Cheng 7ff831962a - Add TargetInstrInfo::isIdentical(). It's similar to MachineInstr::isIdentical
except it doesn't care if the definitions' virtual registers differ. This is
  used by machine LICM and other MI passes to perform CSE.
- Teach Thumb2InstrInfo::isIdentical() to check two t2LDRpci_pic are identical.
  Since pc relative constantpool entries are always different, this requires it
  it check if the values can actually the same.

llvm-svn: 86328
2009-11-07 03:52:02 +00:00
Evan Cheng 207b246650 - Add pseudo instructions tLDRpci_pic and t2LDRpci_pic which does a pc-relative
load of a GV from constantpool and then add pc. It allows the code sequence to
  be rematerializable so it would be hoisted by machine licm.
- Add a late pass to break these pseudo instructions into a number of real
  instructions. Also move the code in Thumb2 IT pass that breaks up t2MOVi32imm
  to this pass. This is done before post regalloc scheduling to allow the
  scheduler to proper schedule these instructions. It also allow them to be
  if-converted and shrunk by later passes.

llvm-svn: 86304
2009-11-06 23:52:48 +00:00
Bob Wilson db42ca663b Fix a broken test.
llvm-svn: 86298
2009-11-06 23:06:42 +00:00
Evan Cheng 8f4e3d99c9 Fix test.
llvm-svn: 85986
2009-11-04 00:42:33 +00:00
Evan Cheng 8d681f0471 Fix PR5367. QPR_8 is the super regclass of DPR_8 and SPR_8.
llvm-svn: 85871
2009-11-03 05:52:54 +00:00
Anton Korobeynikov 2c2dc9f64f Temporary xfail until PR5367 will be resolved
llvm-svn: 85848
2009-11-03 00:37:36 +00:00
Evan Cheng 1708b06c0e Unbreak ARMBaseRegisterInfo::copyRegToReg.
llvm-svn: 85787
2009-11-02 04:44:55 +00:00
Evan Cheng 43219997b6 Make use of imm12 version of Thumb2 ldr / str instructions more aggressively.
llvm-svn: 85743
2009-11-01 21:12:51 +00:00
Evan Cheng 50bc004b67 Fix tests.
llvm-svn: 85723
2009-11-01 18:13:29 +00:00
Evan Cheng 6f29ad9170 Use cbz and cbnz instructions.
llvm-svn: 85698
2009-10-31 23:46:45 +00:00
Jim Grosbach 5cba8de2c8 vml[as].f32 cause stalls in following advanced SIMD instructions. Avoid using
them for scalar floating point operations for now.

llvm-svn: 85697
2009-10-31 22:57:36 +00:00
Jim Grosbach 403202aef1 Consolidate test files
llvm-svn: 85696
2009-10-31 22:20:56 +00:00
Jim Grosbach c79fb530d4 Change to use FileCheck
llvm-svn: 85695
2009-10-31 22:16:14 +00:00
Jim Grosbach 69f364babc Make tests more explicit about which instructions are expected.
llvm-svn: 85694
2009-10-31 22:14:17 +00:00
Jim Grosbach 259c37cc55 Grammar tweak to comments
llvm-svn: 85693
2009-10-31 22:12:44 +00:00
Jim Grosbach 2c3e618a06 Update test to be more explicit about what instruction sequences are expected for each operation.
llvm-svn: 85691
2009-10-31 22:10:38 +00:00
Benjamin Kramer 6ef6fe1c31 Force triple; darwin's ASM syntax differs from linux's.
llvm-svn: 85676
2009-10-31 19:54:06 +00:00
Benjamin Kramer 7e06083a3a Add missing colons for FileCheck.
llvm-svn: 85674
2009-10-31 19:22:24 +00:00
Evan Cheng cdbb70c065 It's safe to remat t2LDRpci; Add PseudoSourceValue to load / store's to enable more machine licm. More changes coming.
llvm-svn: 85643
2009-10-31 03:39:36 +00:00
Bob Wilson 3d43b38f0f Fix Thumb2 failures by converting them to FileCheck.
llvm-svn: 85210
2009-10-27 06:31:02 +00:00
Evan Cheng 69140ec4fa Add a couple of ARM cross-rc coalescing tests.
llvm-svn: 85051
2009-10-25 08:01:41 +00:00
Evan Cheng b9f3520660 Update tests.
llvm-svn: 85050
2009-10-25 07:53:48 +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
Evan Cheng 786b15fe12 Match more patterns to movt.
llvm-svn: 84751
2009-10-21 08:15:52 +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
David Goodwin baf6dd26ea Checkpoint more aggressive anti-dependency breaking for post-ra scheduler.
llvm-svn: 84658
2009-10-20 19:54:44 +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
Evan Cheng 4ad726b4be Fix tests.
llvm-svn: 83241
2009-10-02 06:53:57 +00:00
David Goodwin 1cc6dd97da Remove neonfp attribute and instead set default based on CPU string. Add -arm-use-neon-fp to override the default.
llvm-svn: 83218
2009-10-01 22:19:57 +00:00
Evan Cheng 3ea1ba7739 Forgot this test earlier.
llvm-svn: 83143
2009-09-30 08:41:27 +00:00
Evan Cheng 83e0d481ae Make ARM and Thumb2 32-bit immediate materialization into a single 32-bit pseudo
instruction. This makes it re-materializable.

Thumb2 will split it back out into two instructions so IT pass will generate the
right mask. Also, this expose opportunies to optimize the movw to a 16-bit move.

llvm-svn: 82982
2009-09-28 09:14:39 +00:00
Evan Cheng a6b9cab822 Enable pre-regalloc load / store multiple pass for Thumb2.
llvm-svn: 82893
2009-09-27 09:46:04 +00:00
Daniel Dunbar ccde96e96b "Update" tests for -disable-if-conversion removal. I think branch.ll should just
be removed, but I XFAIL'd it for now.

llvm-svn: 82847
2009-09-26 05:29:36 +00:00
Dan Gohman a080159a7c Convert more tests to avoid llvm-as.
llvm-svn: 81545
2009-09-11 18:36:27 +00:00
Evan Cheng cf61d68eaf Cast MO.getImm() to unsigned before comparing with an unsigned limit.
llvm-svn: 81318
2009-09-09 06:05:16 +00:00
Dan Gohman c8054d90fb Eliminate more uses of llvm-as and llvm-dis.
llvm-svn: 81293
2009-09-09 00:09:15 +00:00
Chris Lattner f87421f088 update various tests for signedness changes in .s file.
llvm-svn: 81289
2009-09-08 23:51:06 +00:00
Chris Lattner 9ef94277f1 adjust for signedness change. I'd appreciate it if an ARM flavored person
could look at this: the top undefined bits of an immediate shouldn't affect
isel (cmp vs cmp.w)

llvm-svn: 81288
2009-09-08 23:44:53 +00:00
Chris Lattner 6837964819 merge thumb2-bic2.ll into thumb2-bic.ll and update for signedness changes.
llvm-svn: 81285
2009-09-08 23:41:06 +00:00
Evan Cheng 3d2fce01aa Run branch folding if if-converter make some transformations.
llvm-svn: 80994
2009-09-04 07:47:40 +00:00
Evan Cheng 4f835f1d7d Remove .n suffix for some 16-bit opcodes now that Darwin assembler is fixed.
llvm-svn: 80615
2009-08-31 20:14:07 +00:00
Evan Cheng 43b9ca6f42 Let Darwin linker auto-synthesize stubs and lazy-pointers. This deletes a bunch of nasty code in ARM asm printer.
llvm-svn: 80404
2009-08-28 23:18:09 +00:00
Evan Cheng 7a37b1a2ca Fix PR4789. Teach eliminateFrameIndex how to handle VLDRQ and VSTRQ which cannot fold any immediate offset.
llvm-svn: 80191
2009-08-27 01:23:50 +00:00
Bob Wilson 9054d25808 Fix a typo. Somehow I thought this had passed before, but I guess not.
llvm-svn: 79937
2009-08-24 21:17:17 +00:00
Bob Wilson 5fe1d38607 Convert slow test to use FileCheck.
llvm-svn: 79935
2009-08-24 20:33:47 +00:00
Dan Gohman a41fa35992 Make tail merging handle blocks with repeated predecessors correctly, and
remove RemoveDuplicateSuccessor, as it is no longer necessary, and because
it breaks assumptions made in
MachineBasicBlock::isOnlyReachableByFallthrough.

Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase
for PR4732.

test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to
it being bugpoint-reduced to the point where it doesn't matter what the
condition for the branch is.

Add some more interesting code to
test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase
that originally motivated the RemoveDuplicateSuccessor code, to help
verify that the original problem isn't being re-broken.

llvm-svn: 79338
2009-08-18 15:18:18 +00:00
Evan Cheng dd406177de Fix revsh pattern.
llvm-svn: 79318
2009-08-18 05:43:23 +00:00
Evan Cheng d7e1a79eea Fix tests.
llvm-svn: 79086
2009-08-15 08:23:11 +00:00
Evan Cheng 6ddd7bcdd1 Turn on if-conversion for thumb2.
llvm-svn: 79084
2009-08-15 07:59:10 +00:00
Evan Cheng 7dae88d2c9 Leaf functions which do not save CSRs can be frameless even with -disable-fp-elim.
llvm-svn: 79039
2009-08-14 20:48:13 +00:00
Evan Cheng e41903b10d Also shrink immediate branches; also more assembler workarounds.
llvm-svn: 79014
2009-08-14 18:31:44 +00:00
Evan Cheng db73d68cbe Shrink ADR and LDR from constantpool late during constantpool island pass.
llvm-svn: 78970
2009-08-14 00:32:16 +00:00
Evan Cheng 608d92c943 Remove an Darwin assembler workaround.
llvm-svn: 78777
2009-08-12 01:56:42 +00:00
Evan Cheng 1e6c2a1c17 Shrink ADDS, ADC, RSB, and SUBS.
llvm-svn: 78776
2009-08-12 01:49:45 +00:00
Evan Cheng f6a9d06241 Shrinkify Thumb2 r = add sp, imm.
llvm-svn: 78745
2009-08-11 23:00:31 +00:00
Evan Cheng cc9ca3500d Shrinkify Thumb2 load / store multiple instructions.
llvm-svn: 78717
2009-08-11 21:11:32 +00:00
Evan Cheng 806845daec Fix the previous accidental commit. Now shrinking common Thumb2 load / store instructions.
llvm-svn: 78659
2009-08-11 09:37:40 +00:00
Evan Cheng 475f8a4fa2 Enable Thumb2 instruction shrinking (32-bit to 16-bit) pass. Convert a bunch of thumb2 tests to FileCheck.
llvm-svn: 78622
2009-08-10 23:56:04 +00:00
Evan Cheng f72c13bdf5 Handle the constantfp created during post-legalization dag combiner phase.
llvm-svn: 78594
2009-08-10 20:25:59 +00:00
Jakob Stoklund Olesen ac51533b8a Simplify RegScavenger::forward a bit more.
Verify that early clobber registers and their aliases are not used.

All changes to RegsAvailable are now done as a transaction so the order of
operands makes no difference.

The included test case is from PR4686. It has behaviour that was dependent on the order of operands.

llvm-svn: 78465
2009-08-08 13:18:47 +00:00
Evan Cheng 6e130db3b7 Thumb2 32-bit ldm / stm needs .w suffix if submode is ia.
llvm-svn: 78410
2009-08-07 21:19:10 +00:00
Evan Cheng 4c3b1ca5a0 Fix support to use NEON for single precision fp math.
llvm-svn: 78397
2009-08-07 19:30:41 +00:00
Evan Cheng b1aeeed03e Another coalescer bug. When a dead copy is eliminated, transfer the kill to a def of the exact register rather than a super-register.
llvm-svn: 78376
2009-08-07 07:14:14 +00:00
Evan Cheng b972e5633f It turns out most of the thumb2 instructions are not allowed to touch SP. The semantics of such instructions are unpredictable. We have just been lucky that tests have been passing.
This patch takes pain to ensure all the PEI lowering code does the right thing when lowering frame indices, insert code to manipulate stack pointers, etc. It's also custom lowering dynamic stack alloc into pseudo instructions so we can insert the right instructions at scheduling time.

This fixes PR4659 and PR4682.

llvm-svn: 78361
2009-08-07 00:34:42 +00:00
Evan Cheng ea2b82b8fc Disable stack coloring with register for now. It's not able to set kill markers.
llvm-svn: 78179
2009-08-05 07:26:17 +00:00
Evan Cheng a2ce665f60 Another nasty coalescer bug (is there another kind):
After coalescing reg1027's def and kill are both at the same point:
 %reg1027,0.000000e+00 = [56,814:0)  0@70-(814)

bb5:
60   %reg1027<def> = t2MOVr %reg1027, 14, %reg0, %reg0
68   %reg1027<def> = t2LDRi12 %reg1027<kill>, 8, 14, %reg0
76   t2CMPzri %reg1038<kill,undef>, 0, 14, %reg0, %CPSR<imp-def>
84   %reg1027<def> = t2MOVr %reg1027, 14, %reg0, %reg0
96   t2Bcc mbb<bb5,0x2030910>, 1, %CPSR<kill>

Do not remove the kill marker on t2LDRi12.

llvm-svn: 78178
2009-08-05 07:05:41 +00:00
Evan Cheng 1f7b549c79 One more. Transfer kill of the larger register when lowering an EXTRACT_SUBREG.
llvm-svn: 78145
2009-08-05 02:25:11 +00:00
Evan Cheng 6376367356 One more place where subreg lowering forgot to transfer undefness.
llvm-svn: 78144
2009-08-05 01:57:22 +00:00
Evan Cheng cdb125ce66 If the insert_subreg source is <undef>, insert an implicit_def instead of a copy.
llvm-svn: 78141
2009-08-05 01:29:24 +00:00
Evan Cheng 7cc6aca1e6 Fix part 1 of pr4682. PICADD is a 16-bit instruction even in thumb2 mode.
llvm-svn: 78126
2009-08-04 23:47:55 +00:00
Evan Cheng 28c2d9809d Fix test.
llvm-svn: 78113
2009-08-04 22:22:58 +00:00
Evan Cheng 783b65b546 Enable load / store multiple pass for Thumb2. It's not using ldrd / strd yet.
llvm-svn: 78104
2009-08-04 21:12:13 +00:00
Evan Cheng a3abe2a7ce In thumb mode, r7 is used as frame register. This fixes pr4681.
llvm-svn: 78086
2009-08-04 18:46:17 +00:00
Evan Cheng 03eb0e3c33 Emit sub r, #c instead of transforming it to add r, #-c if c fits in 8-bit. This is a bit of pre-mature optimization. 8-bit variant makes it likely it will be narrowed to a 16-bit instruction.
llvm-svn: 78030
2009-08-04 01:41:15 +00:00
Evan Cheng 093e124256 Fix a coaelescer bug. If a copy val# is extended to eliminate a non-trivially coalesced copy, and the copy kills its source register. Trim the source register's live range to the last use if possible. This fixes up kill marker to make the scavenger happy.
llvm-svn: 77967
2009-08-03 08:41:59 +00:00
Evan Cheng 8b9deebba3 Use the i12 variant of load / store opcodes if offset is zero. Now we pass all of multisource as well.
llvm-svn: 77939
2009-08-03 02:38:06 +00:00
Evan Cheng 8e3889f12e Test both darwin and linux.
llvm-svn: 77852
2009-08-02 02:54:34 +00:00
Eli Friedman f165160724 Hack to make this test work on platforms which aren't Macs. Fixing this
myself because I'm getting tired of seeing the red buildbots, which have 
been red since 5:30PM PDT last night.

Proposed supplement to developer policy: committers should make sure to 
be around to watch for buildbot failures after committing.

llvm-svn: 77785
2009-08-01 16:37:18 +00:00
Evan Cheng e64f48ba8b Workaround a couple of Darwin assembler bugs.
llvm-svn: 77781
2009-08-01 06:13:52 +00:00
Evan Cheng e6e8289d72 Split t2MOVCCs since some assemblers do not recognize mov shifted register alias with predicate.
llvm-svn: 77764
2009-08-01 01:43:45 +00:00
Evan Cheng 6ab54fdb0a Fix Thumb2 function call isel. Thumb1 and Thumb2 should share the same
instructions for calls since BL and BLX are always 32-bit long and BX is always
16-bit long.

Also, we should be using BLX to call external function stubs.

llvm-svn: 77756
2009-08-01 00:16:10 +00:00
Evan Cheng be8422e8e0 Until we have a "ALIGN" pseudo instruction, have asm printer emitted a .align
to ensure the instruction that follows a TBB (when the number of table entries
is odd) is 2-byte aligned.
Patch by Sandeep Patel.

llvm-svn: 77705
2009-07-31 18:35:56 +00:00
Evan Cheng 5811ab5cf3 When fp is not eliminated, instructions with T2_i12 modes will be changed to T2_i8 ones. Take that into consideration when determining stack size limit for reserving register scavenging slot.
llvm-svn: 77642
2009-07-30 23:29:25 +00:00
David Goodwin 0bfc8312c2 Darwin assembler now recognizes "orn", so remove workaround.
llvm-svn: 77627
2009-07-30 21:51:41 +00:00
David Goodwin ce774e2383 Darwin assembler now supports "rrx", so remove workaround.
llvm-svn: 77625
2009-07-30 21:38:40 +00:00
David Goodwin 79c079b478 Cleanup and include code selection for some frame index cases.
llvm-svn: 77622
2009-07-30 18:56:48 +00:00
Evan Cheng e3493a91cc tbb / tbh instructions only branch forward, not backwards.
llvm-svn: 77522
2009-07-29 23:20:20 +00:00
Evan Cheng c6d70ae063 Optimize Thumb2 jumptable to use tbb / tbh when all the offsets fit in byte / halfword.
llvm-svn: 77422
2009-07-29 02:18:14 +00:00
Evan Cheng c8bed03349 In thumb2 mode, add pc is unpredictable. Use add + mov pc instead (that is until more optimization goes in).
llvm-svn: 77364
2009-07-28 20:53:24 +00:00
David Goodwin 68bb69d6e3 Remove support for ORN to workaround <rdar://problem/7096522>.
llvm-svn: 77363
2009-07-28 20:51:25 +00:00
David Goodwin 865c6298d7 Add workaround for <rdar://problem/7098328>.
llvm-svn: 77340
2009-07-28 18:15:38 +00:00
David Goodwin e82862e24e Add Thumb-2 patterns for ARMsrl_flag and ARMsra_flag.
llvm-svn: 77329
2009-07-28 17:06:49 +00:00
Evan Cheng 780748d565 - More refactoring. This gets rid of all of the getOpcode calls.
- This change also makes it possible to switch between ARM / Thumb on a
  per-function basis.
- Fixed thumb2 routine which expand reg + arbitrary immediate. It was using
  using ARM so_imm logic.
- Use movw and movt to do reg + imm when profitable.
- Other code clean ups and minor optimizations.

llvm-svn: 77300
2009-07-28 05:48:47 +00:00
David Goodwin 57b51d9f82 ORN does not require (and can not have) the ".w" suffix. "Orthogonality" is a dirty word at ARM.
llvm-svn: 77275
2009-07-27 23:34:12 +00:00
David Goodwin 782f242fd7 Add ".w" suffix for wide thumb-2 instructions.
llvm-svn: 77199
2009-07-27 16:31:55 +00:00
Evan Cheng f3a1fce8ae Change Thumb2 jumptable codegen to one that uses two level jumps:
Before:
      adr r12, #LJTI3_0_0
      ldr pc, [r12, +r0, lsl #2]
LJTI3_0_0:
      .long    LBB3_24
      .long    LBB3_30
      .long    LBB3_31
      .long    LBB3_32

After:
      adr r12, #LJTI3_0_0
      add pc, r12, +r0, lsl #2
LJTI3_0_0:
      b.w    LBB3_24
      b.w    LBB3_30
      b.w    LBB3_31
      b.w    LBB3_32

This has several advantages.
1. This will make it easier to optimize this to a TBB / TBH instruction +
   (smaller) table.
2. This eliminate the need for ugly asm printer hack to force the address
   into thumb addresses (bit 0 is one).
3. Same codegen for pic and non-pic.
4. This eliminate the need to align the table so constantpool island pass
   won't have to over-estimate the size.

Based on my calculation, the later is probably slightly faster as well since
ldr pc with shifter address is very slow. That is, it should be a win as long
as the HW implementation can do a reasonable job of branch predict the second
branch.

llvm-svn: 77024
2009-07-25 00:33:29 +00:00
Evan Cheng 8c8e88bd39 Remove a duplicated test.
llvm-svn: 77020
2009-07-25 00:24:40 +00:00
Evan Cheng aee0e1f48c Fix these tests.
llvm-svn: 77006
2009-07-24 22:42:22 +00:00
Evan Cheng 3990850a7d Convert a test to FileCheck.
llvm-svn: 76954
2009-07-24 06:01:46 +00:00
Evan Cheng dc99f07113 Thumb2 does not allow the use of "pc" register as part of the load / store address.
llvm-svn: 76909
2009-07-23 23:09:51 +00:00
Evan Cheng d2919a1773 Fix up ARM constant island pass for Thumb2.
Also fixed up code to fully use the SoImm field for ADR on ARM mode.

llvm-svn: 76890
2009-07-23 18:27:47 +00:00
Evan Cheng 38e88cb53f Do not select tSXTB / tSXTH in thumb2 mode.
llvm-svn: 76600
2009-07-21 18:15:26 +00:00
Evan Cheng 0d8b0cf3b8 Fix ARM isle code that optimize multiply by constants which are power-of-2 +/- 1.
llvm-svn: 76520
2009-07-21 00:31:12 +00:00
Anton Korobeynikov c5df7e2dc1 Emit cross regclass register moves for thumb2.
Minor code duplication cleanup.

llvm-svn: 76124
2009-07-16 23:26:06 +00:00
David Goodwin 72b80ac9b1 Fix detection of valid BFC immediates.
llvm-svn: 75576
2009-07-14 00:57:56 +00:00
Evan Cheng 017288a4fc Don't put IT instruction before conditional branches.
llvm-svn: 75361
2009-07-11 07:26:20 +00:00
Chris Lattner e3c4765bac convert test to use FileCheck, which is much more precise and faster than
the previous RUN lines.  Hopefully this will be an inspiration for future
tests :)

llvm-svn: 75261
2009-07-10 18:34:47 +00:00
Evan Cheng 0f9cce7951 Add a thumb2 pass to insert IT blocks.
llvm-svn: 75218
2009-07-10 01:54:42 +00:00
David Goodwin 22c2fba978 Use common code for both ARM and Thumb-2 instruction and register info.
llvm-svn: 75067
2009-07-08 23:10:31 +00:00
David Goodwin 121563c615 Add rev16 test... xfail for now
llvm-svn: 75012
2009-07-08 16:15:06 +00:00
David Goodwin af7451b674 Checkpoint Thumb2 Instr info work. Generalized base code so that it can be shared between ARM and Thumb2. Not yet activated because register information must be generalized first.
llvm-svn: 75010
2009-07-08 16:09:28 +00:00
Evan Cheng d0611f9a37 Add Thumb2 movcc instructions.
llvm-svn: 74946
2009-07-07 20:39:03 +00:00
Evan Cheng d0f6324cdc Add Thumb2 pkhbt / pkhtb.
llvm-svn: 74895
2009-07-07 05:35:52 +00:00
Evan Cheng b24e51e2d9 Add some more Thumb2 multiplication instructions.
llvm-svn: 74889
2009-07-07 01:17:28 +00:00
Evan Cheng 0e8bde5910 Add thumb2 sign / zero extend with rotate instructions.
llvm-svn: 74755
2009-07-03 01:43:10 +00:00
Evan Cheng 53cdf022b6 Added indexed stores.
llvm-svn: 74740
2009-07-03 00:06:39 +00:00
Evan Cheng 8ecd7eb3f7 Sign extending pre/post indexed loads.
llvm-svn: 74736
2009-07-02 23:16:11 +00:00
Evan Cheng 84c6cda2ef Thumb2 pre/post indexed loads.
llvm-svn: 74696
2009-07-02 07:28:31 +00:00
David Goodwin 86c7e20ca6 Add PIC load and store patterns for Thumb-2.
llvm-svn: 74577
2009-07-01 00:01:13 +00:00
David Goodwin d0890a2bad Add thumb-2 store word, halfword, and byte.
llvm-svn: 74555
2009-06-30 22:11:34 +00:00
David Goodwin 28d6d87244 Improve Thumb-2 jump table support.
llvm-svn: 74549
2009-06-30 19:50:22 +00:00
Evan Cheng 57726817aa A few more load instructions.
llvm-svn: 74500
2009-06-30 02:15:48 +00:00
David Goodwin 17512663f5 Enhance tests to include shifted-register operand testing.
llvm-svn: 74490
2009-06-30 01:02:20 +00:00
David Goodwin 76b37950ca Add Thumb-2 support for TEQ amd TST.
llvm-svn: 74468
2009-06-29 22:49:42 +00:00
David Goodwin 911edef65b Thumb-2 tests
llvm-svn: 74464
2009-06-29 22:25:22 +00:00
David Goodwin dbf11ba800 Rename ARMcmpNZ to ARMcmpZ and use it to represent comparisons that set only the Z flag (i.e. eq and ne). Make ARMcmpZ commutative.
llvm-svn: 74423
2009-06-29 15:33:01 +00:00
Evan Cheng b23b50d54d Implement Thumb2 ldr.
After much back and forth, I decided to deviate from ARM design and split LDR into 4 instructions (r + imm12, r + imm8, r + r << imm12, constantpool). The advantage of this is 1) it follows the latest ARM technical manual, and 2) makes it easier to reduce the width of the instruction later. The down side is this creates more inconsistency between the two sub-targets. We should split ARM LDR instruction in a similar fashion later. I've added a README entry for this.

llvm-svn: 74420
2009-06-29 07:51:04 +00:00
David Goodwin 5285817490 When possible, use "mvn ra, rb" instead of "eor ra, rb, -1" because mvn has a narrow version and eor(i) does not.
llvm-svn: 74355
2009-06-26 23:13:13 +00:00
David Goodwin 3aaa751712 Thumb-2 tests
llvm-svn: 74345
2009-06-26 22:37:07 +00:00
David Goodwin aa294c5593 Thumb-2 has CLZ.
llvm-svn: 74322
2009-06-26 20:47:43 +00:00
David Goodwin 35ee722d42 Use "adcs/sbcs" only when the carry-out is live, otherwise use "adc/sbc".
llvm-svn: 74321
2009-06-26 20:45:56 +00:00
Daniel Dunbar a720af1370 More spelling Count as count.
llvm-svn: 74306
2009-06-26 18:35:07 +00:00
Daniel Dunbar 6b1678d5d8 Spell Count as count.
llvm-svn: 74298
2009-06-26 18:21:54 +00:00
David Goodwin 3bd42afebe Add Thumb-2 tests.
llvm-svn: 74295
2009-06-26 18:10:30 +00:00
David Goodwin 5960e6d974 ADC used to implement adde should use "adcs" opcode instead of "adc".
llvm-svn: 74293
2009-06-26 18:07:25 +00:00
David Goodwin 34f7ede9e7 ORN and BIC tests.
llvm-svn: 74289
2009-06-26 16:20:06 +00:00
David Goodwin 0377f737ff Currently there is a pattern for the thumb-2 MOV 16-bit immediate instruction. That instruction cannot write the flags so it should use T2I instead of T2sI.
Also, added a pattern for the thumb-2 MOV of shifted immediate since that can encode immediates not encodable by the 16-bit immediate.

llvm-svn: 74288
2009-06-26 16:10:07 +00:00
Evan Cheng 7779156b39 Fix tests: Count -> count.
llvm-svn: 74282
2009-06-26 07:05:57 +00:00
Evan Cheng 34c8c7414f Fix a CodeGenDAGPatterns bug. Check if top level predicates match when it's looking for duplicates.
llvm-svn: 74276
2009-06-26 05:59:16 +00:00
Daniel Dunbar 07025e2c02 Fix spelling of 'count'
llvm-svn: 74249
2009-06-26 01:33:02 +00:00
Evan Cheng 97727a61f9 Select ADC, SBC, and RSC instead of the ADCS, SBCS, and RSCS when the carry bit def is not used.
llvm-svn: 74228
2009-06-25 23:34:10 +00:00
David Goodwin 16f357cccf Use MVN for ~t2_so_imm immediates.
llvm-svn: 74223
2009-06-25 23:11:21 +00:00
Evan Cheng c7ea8df67e ISD::ADDE / ISD::SUBE updates the carry bit so they should isle to ADCS and SBCS / RSCS.
llvm-svn: 74200
2009-06-25 20:59:23 +00:00
Evan Cheng 83f979a48b Add Thumb2 pc relative add.
llvm-svn: 74141
2009-06-24 23:47:58 +00:00
Evan Cheng ff1a4a7271 We should run these tests as well.
llvm-svn: 74121
2009-06-24 21:36:26 +00:00
Evan Cheng d76d0aa68a Move thumb and thumb2 tests into separate directories.
llvm-svn: 74068
2009-06-24 06:36:07 +00:00