8740ee3637
Fix preload instruction isel. Only v7 supports pli, and only v7 with mp extension supports pldw. Add subtarget attribute to denote mp extension support and legalize illegal ones to nothing.
...
llvm-svn: 118160
2010-11-03 06:34:55 +00:00
6f36042557
Add support to match @llvm.prefetch to pld / pldw / pli. rdar://8601536.
...
llvm-svn: 118152
2010-11-03 05:14:24 +00:00
e84eb99cbb
The MC code couldn't handle ARM LDR instructions with negative offsets:
...
vldr.64 d1, [r0, #-32]
The problem was with how the addressing mode 5 encodes the offsets. This change
makes sure that the way offsets are handled in addressing mode 5 is consistent
throughout the MC code. It involves re-refactoring the "getAddrModeImmOpValue"
method into an "Imm12" and "addressing mode 5" version. But not to worry! The
majority of the duplicated code has been unified.
llvm-svn: 118144
2010-11-03 01:49:29 +00:00
c6af2b4066
Break ARM addrmode4 (load/store multiple base address) into its constituent
...
parts. Represent the operation mode as an optional operand instead.
rdar://8614429
llvm-svn: 118137
2010-11-03 01:01:43 +00:00
cc5dce89d4
Completely reject instructions that have an operand in their
...
ins/outs list that isn't specified by their asmstring. Previously
the asmmatcher would just force a 0 register into it, which clearly
isn't right. Mark a bunch of ARM instructions that use this as
isCodeGenOnly. Some of them are clearly pseudo instructions (like
t2TBB) others use a weird hasExtraSrcRegAllocReq thing that will
either need to be removed or the asmmatcher will need to be taught
about it (someday).
llvm-svn: 118119
2010-11-02 23:40:41 +00:00
603bd8f54c
Rename getAddrModeImm12OpValue to getAddrModeImmOpValue and expand it to work
...
with immediates up to 16-bits in size. The same logic is applied to other LDR
encodings, e.g. VLDR, but which use a different immediate bit width (8-bits in
VLDR's case). Removing the "12" allows it to be more generic.
llvm-svn: 118094
2010-11-02 22:31:46 +00:00
a4b63e19d2
Rename encoder methods to match naming convention.
...
llvm-svn: 118093
2010-11-02 22:28:01 +00:00
93a4d44ee6
Sort bit assignments. Cosmetic change only.
...
llvm-svn: 118029
2010-11-02 17:59:04 +00:00
526ffd57d2
Add correct NEON encodings for vld2, vld3, and vld4 basic variants.
...
llvm-svn: 117997
2010-11-02 01:24:55 +00:00
ad40234eff
Add correct NEON encodings for the "multiple single elements" form of vld.
...
llvm-svn: 117984
2010-11-02 00:05:05 +00:00
dd9fbaa9c0
Add support for alignment operands on VLD1-lane instructions.
...
This is another part of the fix for Radar 8599955.
llvm-svn: 117976
2010-11-01 23:40:51 +00:00
0190a649e8
Mark ARM subtarget features that are available for the assembler.
...
llvm-svn: 117929
2010-11-01 16:59:54 +00:00
33fc3e095b
reapply r117858 with apparent editor malfunction fixed (somehow I
...
got a dulicated line).
llvm-svn: 117860
2010-10-31 19:10:56 +00:00
e59eef3dd1
revert r117858 while I check out a failure I missed.
...
llvm-svn: 117859
2010-10-31 19:05:32 +00:00
9293008e90
the asm matcher can't handle operands with modifiers (like ${foo:bar}).
...
Instead of silently ignoring these instructions, emit a hard error and
force the target author to either refactor the target or mark the
instruction 'isCodeGenOnly'.
Mark a few instructions in ARM and MBlaze as isCodeGenOnly the are
doing this.
llvm-svn: 117858
2010-10-31 18:48:12 +00:00
7ed597149b
Overhaul memory barriers in the ARM backend. Radar 8601999.
...
There were a number of issues to fix up here:
* The "device" argument of the llvm.memory.barrier intrinsic should be
used to distinguish the "Full System" domain from the "Inner Shareable"
domain. It has nothing to do with using DMB vs. DSB instructions.
* The compiler should never need to emit DSB instructions. Remove the
ARMISD::SYNCBARRIER node and also remove the instruction patterns for DSB.
* Merge the separate DMB/DSB instructions for options only used for the
disassembler with the default DMB/DSB instructions. Add the default
"full system" option ARM_MB::SY to the ARM_MB::MemBOpt enum.
* Add a separate ARMISD::MEMBARRIER_MCR node for subtargets that implement
a data memory barrier using the MCR instruction.
* Fix up encodings for these instructions (except MCR).
I also updated the tests and added a few new ones to check for DMB options
that were not currently being exercised.
llvm-svn: 117756
2010-10-30 00:54:37 +00:00
74ef9e184e
Encode the register list operands for ARM mode LDM/STM instructions.
...
llvm-svn: 117753
2010-10-30 00:37:59 +00:00
58018e62a8
s/getNEONVcvtImm32/getNEONVcvtImm32OpValue/ to be consistent with other operand
...
encoder functions.
llvm-svn: 117738
2010-10-29 23:19:55 +00:00
4a0c2d73c3
Convert ARM::MOVi2pieces to a true pseudo-instruction and expand it in
...
the ARMExpandPseudos pass rather than during the asm lowering.
llvm-svn: 117714
2010-10-29 21:35:25 +00:00
cb8aec8ec9
Fix typo.
...
llvm-svn: 117703
2010-10-29 20:21:49 +00:00
3b7e05bb97
ARM encoding information for CLREX, SWP and SWPB. Add comment for sjlj pseudos and a FIXME for TLS.
...
llvm-svn: 117702
2010-10-29 20:21:36 +00:00
4e57b52394
ARM mode LDREX*/STREX* binary encodings.
...
llvm-svn: 117695
2010-10-29 19:58:57 +00:00
6ae3fba7c8
Encoding information for ARM conditional move instructions.
...
llvm-svn: 117687
2010-10-29 19:28:17 +00:00
5d6f6a061b
add simple support for addrmode5 operands, allowing
...
vldr.64 to work. I have no idea if this is fully right, but
it is in the right direction.
llvm-svn: 117626
2010-10-29 00:27:31 +00:00
505607e4c6
PLD, PLDW, PLI encodings, plus refactor their use of addrmode2.
...
llvm-svn: 117571
2010-10-28 18:34:10 +00:00
ff310737e5
Re-commit 117518 and 117519 now that ARM MC test failures are out of the way.
...
llvm-svn: 117531
2010-10-28 06:47:08 +00:00
e2c211c1b9
Revert 117518 and 117519 for now. They changed scheduling and cause MC tests to fail. Ugh.
...
llvm-svn: 117520
2010-10-28 02:00:25 +00:00
ff1c862f8e
- Assign load / store with shifter op address modes the right itinerary classes.
...
- For now, loads of [r, r] addressing mode is the same as the
[r, r lsl/lsr/asr #] variants. ARMBaseInstrInfo::getOperandLatency() should
identify the former case and reduce the output latency by 1.
- Also identify [r, r << 2] case. This special form of shifter addressing mode
is "free".
llvm-svn: 117519
2010-10-28 01:49:06 +00:00
59bbc545e0
Shifter ops are not always free. Do not fold them (especially to form
...
complex load / store addressing mode) when they have higher cost and
when they have more than one use.
llvm-svn: 117509
2010-10-27 23:41:30 +00:00
338de3ee56
Refactor ARM STR/STRB instruction patterns into STR{B}i12 and STR{B}rs, like
...
the LDR instructions have. This makes the literal/register forms of the
instructions explicit and allows us to assign scheduling itineraries
appropriately. rdar://8477752
llvm-svn: 117505
2010-10-27 23:12:14 +00:00
fadb951e5b
Provide correct encodings for NEON vcvt, which has its own special immediate encoding
...
for specifying fractional bits for fixed point conversions.
llvm-svn: 117501
2010-10-27 22:49:00 +00:00
333b0a9e74
ARM JIT fix for LDRi12 and company.
...
llvm-svn: 117478
2010-10-27 19:55:59 +00:00
5a7c715470
Split ARM::LDRB into LDRBi12 and LDRBrs. Adjust accordingly. Continuing on
...
rdar://8477752.
llvm-svn: 117419
2010-10-27 00:19:44 +00:00
a92801b695
Since I parameterized this bit, I should probably actually use said parameter.
...
llvm-svn: 117418
2010-10-26 23:58:04 +00:00
1e4d9a17c2
First part of refactoring ARM addrmode2 (load/store) instructions to be more
...
explicit about the operands. Split out the different variants into separate
instructions. This gives us the ability to, among other things, assign
different scheduling itineraries to the variants. rdar://8477752.
llvm-svn: 117409
2010-10-26 22:37:02 +00:00
696fe9d36c
Trailing whitespace.
...
llvm-svn: 117188
2010-10-22 23:48:29 +00:00
2c9ae05c67
ARM mode encoding information for CLZ, RBIT, REV*, and PKH*.
...
llvm-svn: 117165
2010-10-22 22:12:16 +00:00
2b80543fc2
Add the encoding information for the rest of the ARM mode multiply instructions.
...
llvm-svn: 117133
2010-10-22 19:15:30 +00:00
6956a60563
More ARM multiply instuction binary encodings.
...
llvm-svn: 117121
2010-10-22 18:35:16 +00:00
f98df0849f
Parameterize a bit of ARM encoding information, simplifying some instruction
...
definitions.
llvm-svn: 117114
2010-10-22 17:42:06 +00:00
22261600a8
More ARM multiply instruction encoding information.
...
llvm-svn: 117108
2010-10-22 17:16:17 +00:00
e2ec62e252
ARM binary encoding for some of the multiply instructions.
...
llvm-svn: 117080
2010-10-21 22:52:30 +00:00
a97becfaac
ARM binary encodings for MVN variants.
...
llvm-svn: 117076
2010-10-21 22:19:32 +00:00
5edb03ee57
ARM Binary encoding information for BFC/BFI instructions.
...
llvm-svn: 117072
2010-10-21 22:03:21 +00:00
bbdc5d2ef9
Add a pre-dispatch SjLj EH hook on the unwind edge for targets to do any
...
setup they require. Use this for ARM/Darwin to rematerialize the base
pointer from the frame pointer when required. rdar://8564268
llvm-svn: 116879
2010-10-19 23:27:08 +00:00
1c6fd774f7
ARM encoding information for [SU]SAT* instructions.
...
llvm-svn: 116768
2010-10-18 23:35:38 +00:00
90f74fe16a
Encoding information for the various ARM saturating add/sub instructions.
...
llvm-svn: 116612
2010-10-15 19:49:46 +00:00
00ce8deae6
ARM binary encoding information for RSB and RSC instructions.
...
llvm-svn: 116604
2010-10-15 18:42:41 +00:00
68a335e185
ARM mode encoding information for UBFX and SBFX instructions.
...
llvm-svn: 116588
2010-10-15 17:15:16 +00:00
3b1db392fc
Remove unused ARMISD::AND selection DAG node.
...
llvm-svn: 116566
2010-10-15 04:34:40 +00:00
118c4238ff
Encoding info for extension instructions.
...
llvm-svn: 116560
2010-10-15 02:29:58 +00:00
19c6cb978b
Add missing Rd encoding for MOVs instruction.
...
llvm-svn: 116537
2010-10-14 23:28:31 +00:00
8b6a9c1574
Refactor the MOVsr[al]_flag and RRX pseudo-instructions to really be pseudos
...
and let the ARMExpandPseudoInsts pass fix them up into the real (MOVs)
instruction form.
llvm-svn: 116534
2010-10-14 22:57:13 +00:00
062749cb25
Tweak the ARM backend to use the RRX mnemonic instead of the 'mov a, b, rrx'
...
pseudonym.
llvm-svn: 116512
2010-10-14 20:43:44 +00:00
eafcb27ded
MOVi16 and MOVT ARM mode encodings.
...
llvm-svn: 116498
2010-10-14 18:54:27 +00:00
8229153629
Simplify encoding information and add 'dst' operand info for TAILJMP.
...
llvm-svn: 116488
2010-10-14 17:24:28 +00:00
348013f829
Add a FIXME.
...
llvm-svn: 116449
2010-10-13 22:55:33 +00:00
0708e74a95
Add operand encoding bits for SMC and SVC in ARM mode.
...
llvm-svn: 116447
2010-10-13 22:38:23 +00:00
16db3287c0
More encoding cleanup. Also add register Rd operands for indirect branches.
...
llvm-svn: 116444
2010-10-13 22:09:34 +00:00
2a4d99ab62
Simplify some ARM encoding information.
...
llvm-svn: 116440
2010-10-13 21:48:54 +00:00
9874b7de58
Add a FIXME. The ADR instruction is a bit odd.
...
llvm-svn: 116437
2010-10-13 21:32:30 +00:00
7e72ec6626
Refactor the ARM 'setend' instruction pattern. Use a single instruction pattern
...
and handle the operand explicitly. Flesh out encoding information. Add an
explicit disassembler testcase for the instruction.
llvm-svn: 116432
2010-10-13 21:00:04 +00:00
fb07ef19cc
Add a FIXME.
...
llvm-svn: 116428
2010-10-13 20:38:04 +00:00
efc066829b
Make a few more bits of some simple instructions explicit. nop, yield, wfe,
...
wfi, sel, sev and bkpt. All would disassemble properly before, but more
explicitness is good, especially with the integrated assembler coming in
the future.
llvm-svn: 116427
2010-10-13 20:30:55 +00:00
1e7db68774
Add ARM mode encoding for [SU]XT[BH] and [SU]XTA[BH] instructions.
...
llvm-svn: 116421
2010-10-13 19:56:10 +00:00
142e3cbb26
Fix encoding for compares. No Rd register.
...
llvm-svn: 116414
2010-10-13 18:05:25 +00:00
651dc7c9e9
Add ARM mode operand encoding information for ADDE/SUBE instructions.
...
llvm-svn: 116412
2010-10-13 18:00:52 +00:00
8c519c0d4b
Add ARM encoding information for comparisons, forced-cc-out arithmetics, and
...
arithmetic-with-carry-in instructions.
llvm-svn: 116384
2010-10-13 00:50:27 +00:00
efd5369749
Add the rest of the ARM so_reg encoding options (register shifted register)
...
and move to a custom operand encoder. Remove the last of the special handling
stuff from ARMMCCodeEmitter::EncodeInstruction.
llvm-svn: 116377
2010-10-12 23:53:58 +00:00
12e493ace4
Move the ARM so_imm encoding into a custom operand encoder and remove the
...
explicit handling of the instructions referencing it from the MC code
emitter.
llvm-svn: 116367
2010-10-12 23:18:08 +00:00
0e57a9f7a9
Add MOVi ARM encoding.
...
llvm-svn: 116321
2010-10-12 18:09:12 +00:00
6fead930af
Add encoding information for the remainder of the generic arithmetic
...
ARM instructions.
llvm-svn: 116313
2010-10-12 17:11:26 +00:00
b7c2962d20
MC machine encoding for simple aritmetic instructions that use a shifted
...
register operand.
llvm-svn: 116259
2010-10-11 23:16:21 +00:00
5476a274c8
More binary encoding stuff, taking advantage of the new "by name" operand
...
matching in tblgen to do the predicate operand.
llvm-svn: 116213
2010-10-11 18:51:51 +00:00
c43c930690
Implement a few more binary encoding bits. Still very early stage proof-of-
...
concept level stuff at this point, but it is generally working for those
instructions that know how to map the operands.
This patch fills in the register operands for add/sub/or/etc instructions
and adds the conditional execution predicate encoding.
llvm-svn: 116112
2010-10-08 21:45:55 +00:00
742adc328a
Allow use of the 16-bit literal move instruction in CMOVs for ARM mode.
...
llvm-svn: 115884
2010-10-07 00:42:42 +00:00
24ab1ce8c2
Clean up MOVi32imm and t2MOVi32imm pseudo instruction definitions.
...
llvm-svn: 115853
2010-10-06 22:01:26 +00:00
f49540cb4f
Kill of the vestiges of the 'call' Modifier (no longer needed for PLT).
...
llvm-svn: 115845
2010-10-06 21:36:43 +00:00
49d4c0bd18
- Add TargetInstrInfo::getOperandLatency() to compute operand latencies. This
...
allow target to correctly compute latency for cases where static scheduling
itineraries isn't sufficient. e.g. variable_ops instructions such as
ARM::ldm.
This also allows target without scheduling itineraries to compute operand
latencies. e.g. X86 can return (approximated) latencies for high latency
instructions such as division.
- Compute operand latencies for those defined by load multiple instructions,
e.g. ldm and those used by store multiple instructions, e.g. stm.
llvm-svn: 115755
2010-10-06 06:27:31 +00:00
c13194254b
Nuke a bunch of no-longer-needed comment-only asm strings.
...
llvm-svn: 115370
2010-10-01 23:09:33 +00:00
c8e2e9d830
Nuke a few more unused asm strings
...
llvm-svn: 115193
2010-09-30 19:53:58 +00:00
b9429179f9
The asm strings are never used at all, so just nuke 'em entirely.
...
llvm-svn: 115160
2010-09-30 16:56:53 +00:00
4a9cb8f10e
Go ahead and jump!
...
Now that the MC lowering handles the expansion of the pseudos, kill the horrible
blobs of text.
llvm-svn: 115130
2010-09-30 02:18:06 +00:00
2fb20b1d37
ARM instruction itinerary fixes:
...
1. Cortex-a9 8-bit and 16-bit loads / stores AGU cycles are 1 cycle longer than 32-bit ones.
2. Cortex-a9 is out-of-order so model all read cycles as cycle 1.
3. Lots of other random fixes for A8 and A9.
llvm-svn: 115121
2010-09-30 01:08:25 +00:00
0860520527
Add specializations of addrmode2 that allow differentiating those forms
...
which require the use of the shifter-operand. This will be used to split
the ldr/str instructions such that those versions needing the shifter operand
can get a different scheduling itenerary, as in some cases, the use of the
shifter can cause different scheduling than the simpler forms.
llvm-svn: 115066
2010-09-29 19:03:54 +00:00
2259d67a33
Separate itinerary classes for mvn from mov; for tst / teq from cmp / cmn.
...
llvm-svn: 115010
2010-09-29 00:49:25 +00:00
c35d7bbe43
Assign bitwise binary instructions different itinerary classes from ALU instructions such as add / sub.
...
llvm-svn: 115008
2010-09-29 00:27:46 +00:00
62d626ce86
Fix zero and sign extension instructions scheduling itineraries.
...
llvm-svn: 114780
2010-09-25 00:49:35 +00:00
1d35ad62cc
Fix scheduling itinerary for pseudo mov immediate instructions which expand into two real instructions.
...
llvm-svn: 114766
2010-09-24 22:03:46 +00:00
2c5df619c4
Revert r114703 and r114702, removing the isConditionalMove flag from instructions. After further
...
reflection, this isn't going to achieve the purpose I intended it for. Back to the drawing board!
llvm-svn: 114710
2010-09-23 23:45:25 +00:00
2f3728f576
#+4 --> #4 for consistency with other asm output
...
llvm-svn: 114706
2010-09-23 23:32:38 +00:00
07f07290d8
Fix formatting of output .s code
...
llvm-svn: 114705
2010-09-23 23:03:26 +00:00
bd57e0ce3d
Add isConditionalMove bits to X86 and ARM instructions.
...
llvm-svn: 114703
2010-09-23 22:57:01 +00:00
8503054410
Clean up the 'trap' instruction printing a bit. Non-Darwin assemblers don't
...
(yet) recognize the 'trap' mnemonic, so we use .short/.long to emit the
opcode directly. On Darwin, however, we do want the mnemonic for more
readable assembly code and better disassembly.
Adjust the .td file to use the 'trap' mnemonic and handle using the binutils
workaround in the assembly printer. Also tweak the formatting of the opcode
values to make them consistent between the MC printer and the old printer.
llvm-svn: 114679
2010-09-23 18:05:37 +00:00
0e023ea02a
fix a long standing wart: all the ComplexPattern's were being
...
passed the root of the match, even though only a few patterns
actually needed this (one in X86, several in ARM [which should
be refactored anyway], and some in CellSPU that I don't feel
like detangling). Instead of requiring all ComplexPatterns to
take the dead root, have targets opt into getting the root by
putting SDNPWantRoot on the ComplexPattern.
llvm-svn: 114471
2010-09-21 20:31:19 +00:00
ac0ad0f634
Reword since this may not be a bug but intended behavior.
...
llvm-svn: 113584
2010-09-10 10:31:11 +00:00
722cd122dc
Fix LDM_RET schedule itinery.
...
llvm-svn: 113435
2010-09-08 22:57:08 +00:00
39eccb4754
temporarily revert r112664, it is causing a decoding conflict, and
...
the testcases should be merged.
llvm-svn: 112711
2010-09-01 16:00:50 +00:00
6789f8b6ae
We have a chance for an optimization. Consider this code:
...
int x(int t) {
if (t & 256)
return -26;
return 0;
}
We generate this:
tst.w r0, #256
mvn r0, #25
it eq
moveq r0, #0
while gcc generates this:
ands r0, r0, #256
it ne
mvnne r0, #25
bx lr
Scandalous really!
During ISel time, we can look for this particular pattern. One where we have a
"MOVCC" that uses the flag off of a CMPZ that itself is comparing an AND
instruction to 0. Something like this (greatly simplified):
%r0 = ISD::AND ...
ARMISD::CMPZ %r0, 0 @ sets [CPSR]
%r0 = ARMISD::MOVCC 0, -26 @ reads [CPSR]
All we have to do is convert the "ISD::AND" into an "ARM::ANDS" that sets [CPSR]
when it's zero. The zero value will all ready be in the %r0 register and we only
need to change it if the AND wasn't zero. Easy!
llvm-svn: 112664
2010-08-31 22:41:22 +00:00
d657d82597
And ANDS pattern to match the t2ANDS pattern.
...
llvm-svn: 112654
2010-08-31 22:05:37 +00:00
fef37287a8
Make ARM add rN, sp, #imm instructions rematerializable. That's how the address of locals is calculated, so this should
...
help relieve register pressure a bit. Recalculating the local address is
almost always going to be better than spilling.
llvm-svn: 112503
2010-08-30 19:49:58 +00:00
8fc2b590b9
Fix whitespaces. No functionality changes.
...
llvm-svn: 112421
2010-08-29 11:31:07 +00:00
ac64ed0923
File missing from last commit.
...
llvm-svn: 112394
2010-08-29 03:02:28 +00:00
a9c03f4fae
Reapply r112176 without removing the other CMN patterns (that was unintentional).
...
llvm-svn: 112206
2010-08-26 18:33:51 +00:00
e2cbaf6ed7
Don't call tablegen'ed Predicate_* functions in the ARM target.
...
llvm-svn: 111277
2010-08-17 20:39:04 +00:00
62800a990b
80 column cleanup.
...
llvm-svn: 111266
2010-08-17 18:39:16 +00:00
942b10f511
Change ARM PKHTB and PKHBT instructions to use a shift_imm operand to avoid
...
printing "lsl #0". This fixes the remaining parts of pr7792. Make
corresponding changes for encoding/decoding these instructions.
llvm-svn: 111251
2010-08-17 17:23:19 +00:00
804f6159f1
Generalize a pattern for PKHTB: an SRL of 16-31 bits will guarantee
...
that the high halfword is zero. The shift need not be exactly 16 bits.
llvm-svn: 111196
2010-08-16 22:26:55 +00:00
481d7a9ab4
Rename sat_shift operand to shift_imm, in preparation for using it for other
...
instructions besides saturate instructions. No functional changes.
llvm-svn: 111168
2010-08-16 18:27:34 +00:00
8303fbbcf9
Remove unused code.
...
llvm-svn: 111154
2010-08-16 17:06:03 +00:00
8e8f1c133a
Cleaned up the for-disassembly-only entries in the arm instruction table so that
...
the memory barrier variants (other than 'SY' full system domain read and write)
are treated as one instruction with option operand.
llvm-svn: 110951
2010-08-12 20:46:17 +00:00
d59c73f998
Changed the format of DMBsy, DSBsy, and friends from Pseudo to MiscFrm.
...
Added two test cases to arm-tests.txt.
llvm-svn: 110880
2010-08-11 23:35:12 +00:00
add513112a
Move the ARM SSAT and USAT optional shift amount operand out of the
...
instruction opcode. This also fixes part of PR7792.
llvm-svn: 110875
2010-08-11 23:10:46 +00:00
91033bed94
Really control isel of barrier instructions with cpu feature.
...
llvm-svn: 110787
2010-08-11 06:36:31 +00:00
6e809de90c
- Add subtarget feature -mattr=+db which determine whether an ARM cpu has the
...
memory and synchronization barrier dmb and dsb instructions.
- Change instruction names to something more sensible (matching name of actual
instructions).
- Added tests for memory barrier codegen.
llvm-svn: 110785
2010-08-11 06:22:01 +00:00
920f74aaab
Mark ARM compare instructions as isCompare.
...
llvm-svn: 110761
2010-08-11 00:22:27 +00:00
9664984be8
Add a separate ARM instruction format for Saturate instructions.
...
(I discovered 2 more copies of the ARM instruction format list, bringing the
total to 4!! Two of them were already out of sync. I haven't yet gotten into
the disassembler enough to know the best way to fix this, but something needs
to be done.) Add support for encoding these instructions.
llvm-svn: 110754
2010-08-11 00:01:18 +00:00
b1021395b8
Fix indentation.
...
llvm-svn: 110363
2010-08-05 19:00:21 +00:00
72de307116
Add an ARM RSCrr instruction for disassembly only.
...
Partial fix for PR7792.
llvm-svn: 110361
2010-08-05 18:59:36 +00:00
adb93e56a3
Add an ARM RSBrr instruction for disassembly only.
...
Partial fix for PR7792.
llvm-svn: 110358
2010-08-05 18:23:43 +00:00
b128824b60
Move newlines before inline jumptables from the asm strings in .td files to
...
the jtblock_operand print methods. This avoids extra newlines in the
disassembler's output. PR7757.
llvm-svn: 109948
2010-07-31 06:28:10 +00:00
c4a96c0e8c
Add builtins for ssat/usat, similar to RealView's __ssat and __usat intrinsics.
...
llvm-svn: 109813
2010-07-29 22:48:09 +00:00
7010a71ac4
Add intrinsics __builtin_arm_qadd & __builtin_arm_qsub to allow access to the QADD & QSUB instructions.
...
Behave identically to __qadd & __qsub RealView instruction intrinsics.
llvm-svn: 109770
2010-07-29 17:56:55 +00:00
c445a7d29b
ARM mode version of r109693. Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138
...
llvm-svn: 109696
2010-07-28 23:25:44 +00:00
11013eda5a
Add basic support to code-gen the ARM/Thumb2 bit-field insert (BFI) instruction
...
and a combine pattern to use it for setting a bit-field to a constant
value. More to come for non-constant stores.
llvm-svn: 108570
2010-07-16 23:05:05 +00:00
a90af1ba38
Improve 64-subtraction of immediates when parts of the immediate can fit
...
in the literal field of an instruction. E.g.,
long long foo(long long a) {
return a - 734439407618LL;
}
rdar://7038284
llvm-svn: 108339
2010-07-14 17:45:16 +00:00
0cc4ad983d
Extend the r107852 optimization which turns some fp compare to code sequence using only i32 operations. It now optimize some f64 compares when fp compare is exceptionally slow (e.g. cortex-a8). It also catches comparison against 0.0.
...
llvm-svn: 108258
2010-07-13 19:27:42 +00:00
e2289285ae
Changes to ARM tail calls, mostly cosmetic.
...
Add explicit testcases for tail calls within the same module.
Duplicate some code to humor those who think .w doesn't apply on ARM.
Leave this disabled on Thumb1, and add some comments explaining why it's hard
and won't gain much.
llvm-svn: 107851
2010-07-08 01:18:23 +00:00
523e554afa
LEApcrelJT shouldn't be marked as neverHasSideEffects, as we don't want it
...
being moved around away from the jump table it references. rdar://8104340
llvm-svn: 106483
2010-06-21 21:27:27 +00:00
d5c58b76ab
Fix PR 7433. Silly typo in non-Darwin ARM tail call
...
handling, plus correct R9 handling in that mode.
llvm-svn: 106434
2010-06-21 18:21:49 +00:00
e5fcd333da
Indentation and remove dead code.
...
llvm-svn: 106362
2010-06-19 00:11:54 +00:00
589ffb4902
Fix ARM/Thumb reversal in previous attempt.
...
llvm-svn: 106314
2010-06-18 21:07:47 +00:00
a06c2f79fc
An attempt to fix the problem Anton reported with
...
ARM tail calls. Don't know if it works, but it
doesn't break Darwin.
llvm-svn: 106309
2010-06-18 20:44:28 +00:00
3ac52b3e43
Last round of changes for ARM tail calls.
...
Not turning them on yet.
llvm-svn: 106295
2010-06-18 18:13:11 +00:00
438c35b5d1
Add file missing from previous commit.
...
llvm-svn: 106058
2010-06-15 22:24:08 +00:00
d679ff7330
Early implementation of tail call for ARM.
...
A temporary flag -arm-tail-calls defaults to off,
so there is no functional change by default.
Intrepid users may try this; simple cases work
but there are bugs.
llvm-svn: 105413
2010-06-03 21:09:53 +00:00
84511e1526
Clean up 80 column violations. No functional change.
...
llvm-svn: 105350
2010-06-02 21:53:11 +00:00
b342e09b5e
correct retattr
...
llvm-svn: 104980
2010-05-28 18:03:48 +00:00
37eb2c24b9
make sure accesses to set up the jmpbuf don't get moved after it by the scheduler. Add a missing \n.
...
llvm-svn: 104967
2010-05-28 17:37:40 +00:00
faa3abbe39
Update the saved stack pointer in the sjlj function context following either
...
an alloca() or an llvm.stackrestore(). rdar://8031573
llvm-svn: 104900
2010-05-27 23:49:24 +00:00
c98892fdaa
Adjust eh.sjlj.setjmp to properly have a chain and to have an opcode entry in
...
ISD::. No functional change.
llvm-svn: 104734
2010-05-26 20:22:18 +00:00
bd9485db63
Implement eh.sjlj.longjmp for ARM. Clean up the intrinsic a bit.
...
Followups: docs patch for the builtin and eh.sjlj.setjmp cleanup to match
longjmp.
llvm-svn: 104419
2010-05-22 01:06:18 +00:00
b7704fee4c
Use 'adr' for LEApcrel and LEApcrel. Mark LEApcrel re-materializable.
...
llvm-svn: 104114
2010-05-19 07:26:50 +00:00
dd7f566597
Mark pattern-less mayLoad / mayStore instructions neverHasSideEffects. These do not have other un-modeled side effects.
...
llvm-svn: 104111
2010-05-19 06:07:03 +00:00
2c452fcd14
Mark a few more pattern-less instructions with neverHasSideEffects. This is especially important on instructions like t2LEApcreal which are prime candidate for machine LICM.
...
llvm-svn: 104102
2010-05-19 01:52:25 +00:00
497d831966
Chris said that the comment char should be escaped. Fix all the occurences of "@" in *.td
...
llvm-svn: 103903
2010-05-16 09:15:36 +00:00
2b7aace2e0
"trap" pseudo-op turned out to be apple-local.
...
Temporary emit it as raw bytes until it will be added to binutils as well.
llvm-svn: 103878
2010-05-15 17:19:20 +00:00
2fa5a7e7e4
Select @llvm.trap to the special B with 1111 condition (i.e. trap) instruction.
...
llvm-svn: 103459
2010-05-11 07:26:32 +00:00
151cd8f159
Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack
...
instructions to subtarget features and update tests to reflect.
PR5717.
llvm-svn: 103136
2010-05-05 23:44:43 +00:00
92d999001c
Add initial support for ARMv7M subtarget and cortex-m3 cpu. Patch by
...
Jordy <snhjordy@gmail.com>.
Followup patches will add some tests and adjust to use Subtarget features
for the instructions.
llvm-svn: 103119
2010-05-05 20:44:35 +00:00
807e1748fc
Multiclass LdStCop was using pre-UAL syntax LDC<c>L for the L fragment. Changed
...
to the UAL syntax of LDCL<c>, instead.
Add a test case for this change which also tests the removal of assert() from
printAddrMode2OffsetOperand().
llvm-svn: 101527
2010-04-16 19:33:23 +00:00
acbc06c2a3
Fixed a bug in ARM disassembly where LDRSBT should have am3offset operand, not
...
am2offset. Modified the instruction table entry and added a new test case.
llvm-svn: 101415
2010-04-15 23:12:47 +00:00
0106063556
Provide versions of the ARM eh_sjlj_setjmp instructions for non-VFP subtargets
...
such that the non-VFP versions have no implicit defs of VFP registers.
If any callee-saved VFP registers are marked as having been defined, the
prologue/epilogue code will try to save and restore them.
Radar 7770432.
llvm-svn: 100892
2010-04-09 20:41:18 +00:00
34de7768bf
Make the use of the vmla and vmls VFP instructions controllable via cmd line.
...
Preliminary testing shows significant performance wins by not using these
instructions.
llvm-svn: 99436
2010-03-24 22:31:46 +00:00
ae08a736d6
Re-commit r98683 ("remove redundant writeback flag from ARM address mode 6")
...
with changes to add a separate optional register update argument. Change all
the NEON instructions with address register writeback to use it.
llvm-svn: 99095
2010-03-20 22:13:40 +00:00
053e3510a3
Revert r98679. The disassembler will be updated to depend on the existence of
...
IndexModeUpd and then populates the Inst{21}=1 while populating the instructions
for disassembly.
llvm-svn: 99013
2010-03-19 23:50:27 +00:00
e4191e719b
Revert this change, since it was causing ARM performance regressions.
...
--- Reverse-merging r98889 into '.':
U lib/Target/ARM/ARMInstrNEON.td
U lib/Target/ARM/ARMISelLowering.h
U lib/Target/ARM/ARMInstrInfo.td
U lib/Target/ARM/ARMInstrVFP.td
U lib/Target/ARM/ARMISelLowering.cpp
U lib/Target/ARM/ARMInstrFormats.td
llvm-svn: 99010
2010-03-19 22:51:32 +00:00
0433699ef0
set SDNPVariadic on nodes throughout the rest of the targets that
...
need them.
llvm-svn: 98937
2010-03-19 05:33:51 +00:00
f11aa9e7b4
Get rid of target-specific fp <-> int nodes when still I'm here.
...
llvm-svn: 98889
2010-03-18 22:35:45 +00:00
c7ba918b84
Revert 98683. It is breaking something in the disassembler.
...
llvm-svn: 98692
2010-03-16 23:01:13 +00:00
c953bca10b
Remove redundant writeback flag from ARM address mode 6. Also remove the
...
optional register update argument, which is currently unused -- when we add
support for that, it can just be a separate operand.
llvm-svn: 98683
2010-03-16 21:44:40 +00:00
71ab18bdd5
Disambiguate the *_UPD and * variants by specifying the writeback flag as 1.
...
This is for the disassembly work.
There are cases where this is not possible, for example, A8.6.53 LDM Encoding T1.
In such case, we'll use an adhoc approach to deduce the Opcode programmatically.
llvm-svn: 98679
2010-03-16 21:25:05 +00:00
d6243b49d4
Remove the writeback flag from ARM's address mode 4. Now that we have separate
...
instructions for ld/st with writeback, the flag is completely redundant.
llvm-svn: 98643
2010-03-16 17:46:45 +00:00
f1e8f7ff7d
Attempt to appease the arm-linux buildbot by fixing the JIT encodings for new
...
base register updating load/store-multiple instructions.
llvm-svn: 98427
2010-03-13 07:34:35 +00:00
947f04bad0
Change ARM ld/st multiple instructions to have variant instructions for
...
writebacks to the address register. This gets rid of the hack that the
first register on the list was the magic writeback register operand. There
was an implicit constraint that if that operand was not reg0 it had to match
the base register operand. The post-RA scheduler's antidependency breaker
did not understand that constraint and sometimes changed one without the
other. This also fixes Radar 7495976 and should help the verifier work
better for ARM code.
There are now new ld/st instructions explicit writeback operands and explicit
constraints that tie those registers together.
llvm-svn: 98409
2010-03-13 01:08:20 +00:00
9a3e2398ae
Factored out the disassembly printing of CPS option, MSR mask, and Negative Zero
...
operands into their own PrintMethod, in order not to pollute the printOperand()
impl with disassembly only Imm modifiers.
llvm-svn: 98172
2010-03-10 18:59:38 +00:00
15804db55c
MSR (Move to Special Register from ARM core register) requires a mask to specify
...
what fields of the CPSR or SPSR are affected.
llvm-svn: 98085
2010-03-09 21:39:34 +00:00
b8a7427636
fix a bunch of partially ambiguous patterns on ARM. As an
...
example, this:
(set DPR:$dst, (fsub (fneg (fmul DPR:$a, DPR:$b)), DPR:$dstin))
is ambiguous because DPR contains both f64 and v2f32. tblgen
currently accidentally picks f64 because it's first in the
regclass.
llvm-svn: 97955
2010-03-08 18:51:21 +00:00
bf16a17fc1
Initial bits of ARMv4-only support.
...
Patch by John Tytgat!
llvm-svn: 97886
2010-03-06 19:39:36 +00:00
d520eabcb9
Change some asm shift opcode strings to lowercase.
...
llvm-svn: 97567
2010-03-02 17:03:18 +00:00
718ed8a6d5
Added STRHT for disassembly only and fixed a bug in AI3sthpo class where the W
...
bit should be set to 0 instead of 1.
llvm-svn: 97481
2010-03-01 19:22:00 +00:00
8c5d683aa9
The mayHaveSideEffects flag is no longer used.
...
llvm-svn: 97348
2010-02-27 23:47:46 +00:00
38e7bb6f34
Added the follwoing 32-bit Thumb instructions for disassembly only:
...
o Parallel addition and subtraction, signed/unsigned
o Miscellaneous operations: QADD, QDADD, QSUB, QDSUB
o Unsigned sum of absolute differences [and accumulate]: USAD8, USADA8
o Signed/Unsigned saturate: SSAT, SSAT16, USAT, USAT16
o Signed multiply accumulate long (halfwords): SMLAL<x><y>
o Signed multiply accumulate/subtract [long] (dual): SMLAD[x], SMLALD[X], SMLSD[X], SMLSLD[X]
o Signed dual multiply add/subtract [long]: SMUAD[X], SMUSD[X]
llvm-svn: 97276
2010-02-26 22:04:29 +00:00
45fceea0e4
Updated version of r96634 (which was reverted due to failing 176.gcc and
...
126.gcc nightly tests. These failures uncovered latent bugs that machine DCE
could remove one half of a stack adjust down/up pair, causing PEI to assert.
This update fixes that, and the tests now pass.
llvm-svn: 96822
2010-02-22 23:10:38 +00:00
5ddd4aca97
Added SEL, SXTB16, SXTAB16, UXTAB16, SMMULR, SMMLAR, SMMLSR, SMUAD, and SMUSD,
...
for disassembly only.
llvm-svn: 96806
2010-02-22 21:50:40 +00:00
9d4a3e2a7c
Added a bunch of instructions for disassembly only:
...
o signed/unsigned add/subtract
o signed/unsigned halving add/subtract
o unsigned sum of absolute difference [and accumulate]
o signed/unsigned saturate
o signed multiply accumulate/subtract [long] dual
llvm-svn: 96795
2010-02-22 18:50:54 +00:00
a07c9c7c56
Undo r96654. The printing of ARM shift instructions in canonical forms can be
...
handled in ARMInstPrinter.cpp.
And added PLD/PLDW/PLI (Preload Data/Instruction) for disassembly only.
llvm-svn: 96719
2010-02-21 04:42:01 +00:00
1ca8af9b76
Added entries for ASR, LSL, LSR, ROR, and RRX so that the disassembler prints
...
out the canonical form (A8.6.98) instead of the pseudo-instruction as provided
via MOVs.
DBG_ARM_DISASM=YES llvm-mc -triple=arm-unknown-unknown --disassemble
0xc0 0x00 0xa0 0xe1
Opcode=29 Name=ASR Format=ARM_FORMAT_LDMISCFRM
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
-------------------------------------------------------------------------------------------------
| 1: 1: 1: 0| 0: 0: 0: 1| 1: 0: 1: 0| 0: 0: 0: 0| 0: 0: 0: 0| 0: 0: 0: 0| 1: 1: 0: 0| 0: 0: 0: 0|
-------------------------------------------------------------------------------------------------
asr r0, r0, #1
llvm-svn: 96654
2010-02-19 02:12:06 +00:00
688a90e2d7
Added LDRD_PRE/POST & STRD_PRE/POST for disassembly only.
...
llvm-svn: 96619
2010-02-18 22:31:18 +00:00
74c904589e
Added LDRSBT, LDRHT, LDRSHT for disassembly only. And fixed encoding errors
...
of AI3ldsbpo, AI3ldhpo, and AI3ldshpo in ARMInstrFormats.td in the process.
llvm-svn: 96565
2010-02-18 03:27:42 +00:00
f3d79a5025
Added for disassembly only the variants of DMB, DSB, and ISB.
...
llvm-svn: 96540
2010-02-18 00:19:08 +00:00
1d793a5e0e
Added CLREX (Clear-Exclusive) for disassembly only.
...
A8.6.30
llvm-svn: 96523
2010-02-17 22:37:58 +00:00
5454e0633e
Added RFE for disassembly only.
...
B6.1.8 RFE Return From Exception loads the PC and the CPSR from the word at the
specified address and the following word respectively.
llvm-svn: 96519
2010-02-17 21:39:10 +00:00
036b2f6542
Added BFI for disassembly only.
...
A8.6.18 BFI - Bitfield insert (Encoding A1)
llvm-svn: 96462
2010-02-17 06:31:48 +00:00
4c444bf606
Add SMC (Secure Monitor Call) system instruction for disassembly only.
...
llvm-svn: 96401
2010-02-16 21:59:54 +00:00
3e2cad3b1a
80 column cleanup
...
llvm-svn: 96393
2010-02-16 21:23:02 +00:00
fba7fce5be
Remove trailing whitespace
...
llvm-svn: 96388
2010-02-16 21:07:46 +00:00
2284ddab56
Update Thumb2 to not use CarryDefIsUnused or CarryDefIsUsed predicates, but
...
to have the predicate on the pattern itself instead. Support for the new
ISel. Remove definitions of CarryDefIsUnused and CarryDefIsUsed since they are
no longer used anywhere.
llvm-svn: 96384
2010-02-16 20:42:29 +00:00
756ab53e60
Remove redundant setting of Defs. CPSR is already marked by the block level set of Defs.
...
llvm-svn: 96383
2010-02-16 20:35:59 +00:00
0a334d0df9
First step in eliminating the CarryDefIsUnused and CarryDefIsUsed predicates.
...
They won't work with the new ISel mechanism, as Requires predicates are no
longer allowed to reference the node being selected. Moving the predicate to
the patterns instead solves the problem.
This patch handles ARM mode. Thumb2 will follow.
llvm-svn: 96381
2010-02-16 20:17:57 +00:00
46c39d4f1f
Added for disassembly the following instructions:
...
o Store Return State (SRSW, SRS)
o Load/Store Coprocessor (LDC/STC and friends)
o MSR (immediate)
llvm-svn: 96380
2010-02-16 20:04:27 +00:00
70aa8d0745
Fix pr6111: Avoid using the LR register for the target address of an indirect
...
branch in ARM v4 code, since it gets clobbered by the return address before
it is used. Instead of adding a new register class containing all the GPRs
except LR, just use the existing tGPR class.
llvm-svn: 96360
2010-02-16 17:24:15 +00:00
a945c64b5a
Put repeated empty pattern into the AQI instruction class.
...
We could almost use a multiclass for the signed/unsigned instructions, but
there are only 6 of them so I guess it's not worth it.
llvm-svn: 96297
2010-02-15 23:43:47 +00:00
c95a814ec3
Try to factorize the specification of saturating add/subtract operations a bit,
...
as suggested by Bob Wilson.
llvm-svn: 96153
2010-02-14 06:32:20 +00:00
52a6ab3ba7
Add SETEND and BXJ instructions for disassembly only.
...
llvm-svn: 96075
2010-02-13 02:51:09 +00:00
b0208d2a06
Added a bunch of saturating add/subtract instructions for disassembly only.
...
llvm-svn: 96063
2010-02-13 01:21:01 +00:00
29a9103ee6
Add YIELD, WFE, WFI, and SEV instructions for disassembly only.
...
Plus add two formats: MiscFrm and ThumbMiscFrm. Some of the for disassembly
only instructions are changed from Pseudo Format to MiscFrm Format.
llvm-svn: 96032
2010-02-12 22:53:19 +00:00
dc2051c802
Add halfword multiply accumulate long SMLALBB/BT/TB/TT for disassembly only.
...
llvm-svn: 96019
2010-02-12 21:59:23 +00:00
bdf1b9520c
Add SWP (Swap) and SWPB (Swap Byte) for disassembly only.
...
llvm-svn: 96010
2010-02-12 20:48:24 +00:00
cf20cbec49
Add CPS, MRS, MRSsys, MSR, MSRsys for disassembly only.
...
llvm-svn: 95999
2010-02-12 18:55:33 +00:00
905a2d7727
Added coprocessor Instructions CDP, CDP2, MCR, MCR2, MRC, MRC2, MCRR, MCRR2,
...
MRRC, MRRc2. For disassembly only.
llvm-svn: 95955
2010-02-12 01:44:23 +00:00
af88c0a84d
Added LDRT/LDRBT/STRT/STRBT for disassembly only.
...
llvm-svn: 95916
2010-02-11 20:31:08 +00:00
f40b8e03fb
Added BKPT/tBKPT (breakpoint) to the instruction table for disassembly purpose.
...
llvm-svn: 95884
2010-02-11 18:12:29 +00:00
9c13dfb5dd
Add pseudo instruction TRAP for disassembly, which is encoded according to A5-21
...
as the "Permanently UNDEFINED" instruction.
llvm-svn: 95873
2010-02-11 17:14:31 +00:00
c7e14704d0
Added NOP, DBG, SVC to the instruction table for disassembly purpose.
...
llvm-svn: 95784
2010-02-10 18:02:25 +00:00
a570d05228
tighten up eh.setjmp sequence a bit.
...
llvm-svn: 95603
2010-02-08 23:22:00 +00:00
5b66b31774
MOVi16 should also be marked as a UnaryDP instruction, i.e., it doesn't have a
...
Rn operand.
llvm-svn: 95025
2010-02-01 23:06:04 +00:00
b3562f7cf6
For MVNr and MVNs, we need to set Inst{25} = 0 so as not to confuse the decoder.
...
llvm-svn: 94955
2010-01-31 11:22:28 +00:00
267430f74d
Fix PR5694. The CMN instructions set the flags differently from CMP, so they
...
cannot be directly interchanged for comparisons against negated values.
Disable the CMN instructions for the time being.
llvm-svn: 94119
2010-01-22 00:08:13 +00:00
6c0fb92c03
Fix r93758. Use isel patterns instead of c++ selection code to select rbit and make sure we pick different instructions for ARM vs. Thumb2.
...
llvm-svn: 93829
2010-01-19 00:44:15 +00:00
8546ec9c14
Patch by David Conrad:
...
"On ARMv6T2 this turns cttz into rbit, clz instead of the 4 instruction
sequence it is now."
llvm-svn: 93758
2010-01-18 19:58:49 +00:00
ea6f91ff64
Change SelectCode's argument from SDValue to SDNode *, to make it more
...
clear what information these functions are actually using.
This is also a micro-optimization, as passing a SDNode * around is
simpler than passing a { SDNode *, int } by value or reference.
llvm-svn: 92564
2010-01-05 01:24:18 +00:00
69461f50c1
Mark STREX* as earlyclobber for the success result register.
...
llvm-svn: 91555
2009-12-16 19:44:06 +00:00
bee6f16fed
Add encoding bits "let Inst{11-4} = 0b00000000;" to BR_JTr to disambiguate
...
between BR_JTr and STREXD.
llvm-svn: 91339
2009-12-14 21:51:34 +00:00
3974a80307
v6 sync insn copy/paste error
...
llvm-svn: 91333
2009-12-14 21:33:32 +00:00
3c4f04112a
Add ARMv6 memory and sync barrier instructions
...
llvm-svn: 91329
2009-12-14 21:24:16 +00:00
acba3b0ae2
Fixed encoding bits typo of ldrexd/strexd.
...
llvm-svn: 91327
2009-12-14 21:01:46 +00:00
fed3d088ce
correct selection requirements for thumb2 vs. arm versions of the barrier intrinsics
...
llvm-svn: 91313
2009-12-14 19:24:11 +00:00
3cdb555e0f
whitespace
...
llvm-svn: 91307
2009-12-14 18:36:32 +00:00
5e0d2a2df6
ARM memory barrier instructions are not predicable
...
llvm-svn: 91305
2009-12-14 18:31:20 +00:00
9d6410d040
add ldrexd/strexd instructions
...
llvm-svn: 91284
2009-12-14 17:02:55 +00:00
8f9a3ac12c
Framework for atomic binary operations. The emitter for the pseudo instructions
...
just issues an error for the moment. The front end won't yet generate these
intrinsics for ARM, so this is behind the scenes until complete.
llvm-svn: 91200
2009-12-12 01:40:06 +00:00
22a4ea8690
memory barrier instructions by definition have side effects. This prevents the post-RA scheduler from moving them around.
...
llvm-svn: 91150
2009-12-11 20:29:53 +00:00
afdddaed55
Update properties.
...
llvm-svn: 91140
2009-12-11 18:52:41 +00:00
5c4e99fca6
Rough first pass at compare_and_swap atomic builtins for ARM mode. Work in progress.
...
llvm-svn: 91090
2009-12-11 01:42:04 +00:00
fed78ccfb5
Add instruction encoding for DMB/DSB
...
llvm-svn: 91053
2009-12-10 18:35:32 +00:00
53e8854443
Add memory barrier intrinsic support for ARM. Moving towards adding the atomic operations intrinsics.
...
llvm-svn: 91003
2009-12-10 00:11:09 +00:00
c168a52627
Fix some more ARM unified syntax warnings.
...
llvm-svn: 90141
2009-11-30 17:47:19 +00:00
2522908653
Materialize global addresses via movt/movw pair, this is always better
...
than doing the same via constpool:
1. Load from constpool costs 3 cycles on A9, movt/movw pair - just 2.
2. Load from constpool might stall up to 300 cycles due to cache miss.
3. Movt/movw does not use load/store unit.
4. Less constpool entries => better compiler performance.
This is only enabled on ELF systems, since darwin does not have needed
relocations (yet).
llvm-svn: 89720
2009-11-24 00:44:37 +00:00
de5dea869f
Remove ISD::DEBUG_LOC and ISD::DBG_LABEL, which are no longer used.
...
Note that "hasDotLocAndDotFile"-style debug info was already broken;
people wanting this functionality should implement it in the
AsmPrinter/DwarfWriter code.
llvm-svn: 89711
2009-11-23 23:20:51 +00:00
04c0e76772
fold immediate of a + Const into the user as a subtract if it can fit as a negated two-part immediate.
...
llvm-svn: 89694
2009-11-23 20:35:53 +00:00
bdb43a9d99
Remat VLDRD from constpool. Clean up some instruction property specifications.
...
llvm-svn: 89478
2009-11-20 19:57:15 +00:00
9dea05d724
Fix a few places that were missed when we converted to unified syntax.
...
llvm-svn: 89214
2009-11-18 18:10:35 +00:00
14b25eb87b
Set Inst{15-12} (Rd/Rt) to 0b1111 (PC) for BR_JTadd, BR_JTr, and BR_JTm to
...
distinguish between them and the more generic instructions (add, mov, and ldr).
llvm-svn: 89108
2009-11-17 17:17:50 +00:00
18183b6d8e
Set Rm bits of BX_RET to 0b1110 (R14); and set condition code bits of BRIND to
...
0b1110 (ALways). This is so that the disassembler decoder can distinguish among
BX_RET, BRIND, and BXr9.
llvm-svn: 89000
2009-11-16 23:57:56 +00:00
d7cf55cd0e
Use Unified Assembly Syntax for the ARM backend.
...
llvm-svn: 86494
2009-11-09 00:11:35 +00:00
d1d002a6fe
Support alignment specifier for NEON vld/vst instructions
...
llvm-svn: 86404
2009-11-07 21:25:39 +00:00
3467dcb12d
My previous patch (r84124) for setting the encoding bits 4 and 7 of DPSoRegFrm
...
was wrong and too aggressive in the sense that DPSoRegFrm includes both constant
shifts (with Inst{4} = 0) and register controlled shifts (with Inst{4} = 1 and
Inst{7} = 0). The 'rr' fragment of the multiclass definitions actually means
register/register with no shift, see A8-11.
llvm-svn: 86319
2009-11-07 00:54:36 +00:00
1c66e8a6b7
Put BlockAddresses into ARM constant pools.
...
llvm-svn: 85824
2009-11-02 20:59:23 +00:00
5ac6f244fd
Fix schedule model for BFC.
...
llvm-svn: 85809
2009-11-02 17:28:36 +00:00
1cf0b03064
Add ARM codegen for indirect branches.
...
clang/test/CodeGen/indirect-goto.c runs! (unoptimized)
llvm-svn: 85577
2009-10-30 05:45:42 +00:00
73789b848d
Add a Thumb BRIND pattern. Change the ARM BRIND assembly to separate the
...
opcode and operand with a tab. Check for these instructions in the usual
places.
llvm-svn: 85411
2009-10-28 18:26:41 +00:00
e4b80c9bee
Add an indirect branch pattern for ARM. Testcase will be coming soon.
...
llvm-svn: 85355
2009-10-28 00:37:03 +00:00
cde65ec581
Similar to r85280, do not clear the "S" bit for RSBri and RSBrs.
...
llvm-svn: 85299
2009-10-27 20:51:49 +00:00
4f36affe5f
Set condition code bits of BL and BLr9 to 0b1110 (ALways) to distinguish between
...
BL_pred and BLr9_pred.
llvm-svn: 85297
2009-10-27 20:45:15 +00:00
b5044ce5a9
Do not clear the "S" bit for RSCri and RSCrs. They inherit from the "sI"
...
instruction format that already takes care of setting this.
llvm-svn: 85280
2009-10-27 19:52:03 +00:00
df5dcdaa10
Explicitly specify 0b00, i.e, zero rotation, as the rotate filed (Inst{11-10})
...
for the r/rr fragment of the multiclass AI_unary_rrot/AI_bin_rrot.
llvm-svn: 85271
2009-10-27 18:44:24 +00:00
13edef55b6
Change ARM asm strings to separate opcode from operands with a tab instead of a space.
...
llvm-svn: 85178
2009-10-26 23:45:59 +00:00
a33fa47141
Try to get ahead of Johnny Chen and pro-actively add some more ARM encoding
...
bits. Johnny, please review -- I do not have a good track record of getting
these right.
llvm-svn: 85173
2009-10-26 22:59:12 +00:00
a6aba77e0a
Add more ARM instruction encodings for 's' bit set and "rs" register encoding
...
bits. Patch by Johnny Chen.
llvm-svn: 85167
2009-10-26 22:34:44 +00:00
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
786b15fe12
Match more patterns to movt.
...
llvm-svn: 84751
2009-10-21 08:15:52 +00:00
2f69ed8f4c
implement printSORegOperand, add lowering for the nasty and despicable MOVi2pieces :)
...
llvm-svn: 84573
2009-10-20 00:40:56 +00:00
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
423e42b371
Add ARMv6T2 SBFX/UBFX instructions. Approved by Anton Korobeynikov.
...
llvm-svn: 84009
2009-10-13 18:59:48 +00:00
453a06e3ac
Add some ARM instruction encoding bits.
...
Patch by Johnny Chen.
llvm-svn: 83983
2009-10-13 17:35:30 +00:00
0bc673de0d
Fix a tab. Thanks to Johnny Chen for pointing it out.
...
llvm-svn: 83973
2009-10-13 15:27:23 +00:00
4a72f7ab53
Mark the LDR instruction with isReMaterializable, as it is rematerializable
...
when loading from an invariant memory location.
llvm-svn: 83688
2009-10-09 23:28:27 +00:00
dc7d1ce575
Fix a comment typo.
...
Patch by Johnny Chen.
llvm-svn: 83407
2009-10-06 20:18:46 +00:00
1b2b64f618
Add hasExtraSrcRegAllocReq and hasExtraDefRegAllocReq flags to ld / st multiple,
...
ld / st pairs, etc.
llvm-svn: 83197
2009-10-01 08:22:27 +00:00
3bbc6c3ae6
Change ld/st multiples to explicitly model the writeback to base register. This fixes most of the -ldstopti-before-sched2 regressions.
...
llvm-svn: 83191
2009-10-01 01:33:39 +00:00
bcad0c8421
Add "isBarrier = 1" to return instructions.
...
Patch by Sylvere Teissier.
llvm-svn: 83135
2009-09-30 01:35:11 +00:00
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
c30d816d7a
Fix thinko in my recent movt commit: it's not safe to remat movt, since it has input reg argument.
...
Disable rematting of it for now.
llvm-svn: 82975
2009-09-28 07:26:46 +00:00
7c2b1e71c1
Use movt/movw pair to materialize 32 bit constants on ARMv6T2+.
...
This should be better than single load from constpool.
llvm-svn: 82948
2009-09-27 23:52:58 +00:00
9fa8345b65
Fix arm jit encoding bug introduced by 75048. Some instructions', e.g. MOVi, bit 25 should be set.
...
llvm-svn: 81310
2009-09-09 01:47:07 +00:00
d93c668f00
Calls clobber FPSCR.
...
llvm-svn: 80956
2009-09-03 22:12:28 +00:00
5f582b7290
RRX reads CPSR.
...
llvm-svn: 80699
2009-09-01 18:32:09 +00:00
4047b53a40
Print a nl before pic labels so they start at a new line. This makes assembly more readable.
...
llvm-svn: 80350
2009-08-28 06:59:37 +00:00
209baa5c48
STRD and LDRD require ARMv5TE, not just ARMv5T.
...
See http://llvm.org/PR4687 for more info and links.
llvm-svn: 80244
2009-08-27 14:14:21 +00:00
ceffeb6abd
Rename ARM "lane_cst" operands to "nohash_imm" since they are used for
...
several things other than Neon vector lane numbers. For inline assembly
operands with a "c" print code, check that they really are immediates.
llvm-svn: 79676
2009-08-21 21:58:55 +00:00
a7c2dfbca1
Update Cortex-A8 instruction itineraries for integer instructions.
...
llvm-svn: 79436
2009-08-19 18:00:44 +00:00
eba70d85cf
Add missing defs of R2 and D1.
...
llvm-svn: 78918
2009-08-13 16:59:44 +00:00
a9c2aad939
Finalize itineraries for cortex-a8 integer multiply
...
llvm-svn: 78908
2009-08-13 15:51:13 +00:00
695e1c6087
Remove unnecessary newline
...
llvm-svn: 78905
2009-08-13 15:12:16 +00:00
c96e88f8a5
Correct comment wording
...
llvm-svn: 78904
2009-08-13 15:11:43 +00:00
b369ee4c48
Enhance the InstrStage object to enable the specification of an Itinerary with overlapping stages. The default is to maintain the current behavior that the "next" stage immediately follows the previous one.
...
llvm-svn: 78827
2009-08-12 18:31:53 +00:00
a5fdfac6ca
register naming cleanup (s/ip/r12/)
...
llvm-svn: 78806
2009-08-12 15:21:13 +00:00
9f94459d24
Split EVT into MVT and EVT, the former representing _just_ a primitive type, while
...
the latter is capable of representing either a primitive or an extended type.
llvm-svn: 78713
2009-08-11 20:47:22 +00:00
693e36a3e8
SjLj based exception handling unwinding support. This patch is nasty, brutish
...
and short. Well, it's kinda short. Definitely nasty and brutish.
The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.
Built on Darwin and verified no llvm-core "make check" regressions.
llvm-svn: 78625
2009-08-11 00:09:57 +00:00
53aa7a960c
Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.
...
llvm-svn: 78610
2009-08-10 22:56:29 +00:00
cfed3005e5
Use subclassing to print lane-like immediates (w/o hash) eliminating
...
'no_hash' modifier. Hopefully this will make Daniel happy :)
llvm-svn: 78514
2009-08-08 23:10:41 +00:00
887d05ce9b
Use VLDM / VSTM to spill/reload 128-bit Neon registers
...
llvm-svn: 78468
2009-08-08 13:35:48 +00:00
b062c236c5
Add parameter to pattern classes to enable an itinerary to be specified for instructions. For now just use the existing itineraries or NoItinerary.
...
llvm-svn: 78321
2009-08-06 16:52:47 +00:00
3b9c52c5c1
Initial support for single-precision FP using NEON. Added "neonfp" attribute to enable. Added patterns for some binary FP operations.
...
llvm-svn: 78081
2009-08-04 17:53:06 +00:00
175bd14967
Make sure Thumb2 uses the right call instructions.
...
llvm-svn: 77507
2009-07-29 21:26:42 +00:00
0d98d8b8b3
- Fix an obvious copy and paste error.
...
- Darwin Thumb2 call clobbers r9.
llvm-svn: 77500
2009-07-29 20:10:36 +00:00
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
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
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
e270d4a4dd
Use getTargetConstant instead of getConstant since it's meant as an constant operand.
...
llvm-svn: 76803
2009-07-22 22:03:29 +00:00
4b02b2f79c
Don't forget D16 - D31 are clobbered by calls and sjlj eh.
...
llvm-svn: 76729
2009-07-22 06:46:53 +00:00
bd9ba429ca
1. In Thumb mode, select tBx instead of ARM variants.
...
2. BX does not "use" the link register, it defines it.
3. Fix a couple more places in thumb td file that still uses pre-UAL syntax.
llvm-svn: 75585
2009-07-14 01:49:27 +00:00
72b80ac9b1
Fix detection of valid BFC immediates.
...
llvm-svn: 75576
2009-07-14 00:57:56 +00:00
cd4cdd1157
Major changes to Thumb (not Thumb2). Many 16-bit instructions either modifies CPSR when they are outside the IT blocks, or they can predicated when in Thumb2. Move the implicit def of CPSR to an optional def which defaults CPSR. This allows the 's' bit to be toggled dynamically.
...
A side-effect of this change is asm printer is now using unified assembly. There are some minor clean ups and fixes as well.
llvm-svn: 75359
2009-07-11 06:43:01 +00:00
a02fc2d327
LDM_RET should be marked mayLoad.
...
llvm-svn: 75187
2009-07-09 22:57:41 +00:00
e3a53c448b
Change how so_imm and t2_so_imm are handled. At instruction selection time, the immediates are no longer encoded in the imm8 + rot format, that are left as it is. The encoding is now done in ams printing and code emission time instead.
...
llvm-svn: 75048
2009-07-08 21:03:57 +00:00
f0080b734a
Also statically set bit 25 for BR_JT instructions.
...
llvm-svn: 74974
2009-07-07 23:45:10 +00:00
2cff076cfe
Statically encode bit 25 to indicate immediate form of data processing instructions. Patch by Sean Callanan.
...
llvm-svn: 74972
2009-07-07 23:40:25 +00:00
02a44edf12
Add BX and BXr9 encodings. Patch by Sean Callanan.
...
llvm-svn: 74938
2009-07-07 19:16:24 +00:00
40398233b7
Add bfc to armv6t2.
...
llvm-svn: 74868
2009-07-06 22:23:46 +00:00
e63b0e6f79
Added ARM::mls for armv6t2.
...
llvm-svn: 74866
2009-07-06 22:05:45 +00:00
2c450d35ae
Change the meaning of predicate hasThumb2 to mean thumb2 ISA is available, not that it's in thumb mode and thumb2 is available. Added isThumb2 predicate to replace the old predicate.
...
llvm-svn: 74692
2009-07-02 06:38:40 +00:00
979da0e590
80 col violation.
...
llvm-svn: 74683
2009-07-02 01:30:04 +00:00
deb35afd23
Add a new addressing mode for NEON load/store instructions.
...
llvm-svn: 74658
2009-07-01 23:16:05 +00:00
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
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
1eda63715f
Simplify predicate CarryDefIsUsed.
...
llvm-svn: 74277
2009-06-26 06:10:18 +00:00
5bf9011c2d
Mark a bunch of instructions commutable.
...
llvm-svn: 74237
2009-06-26 00:19:44 +00:00
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
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
4c048fe5ad
80 col violation.
...
llvm-svn: 74138
2009-06-24 23:14:45 +00:00
431cf567de
Initial Thumb2 support. Majority of the work is done by David Goodwin. There are
...
also some contribution from Jim Grosbach, Bob Wilson, and Evan Cheng.
I've done my best to consolidate the patches with those that were done by
Viktor Kutuzov and Anton Korzh from Access Softek, Inc. Let me know if missed
anything. I've completely reorganized the thumb2 td file, made more extensive
uses of multiclass, etc.
Test cases will be contributed later after I re-organize what's in svn first.
llvm-svn: 73965
2009-06-23 17:48:47 +00:00
6a42ec3e70
Minor reorg.
...
llvm-svn: 73948
2009-06-23 05:25:29 +00:00
2e076c4e02
Add support for ARM's Advanced SIMD (NEON) instruction set.
...
This is still a work in progress but most of the NEON instruction set
is supported.
llvm-svn: 73919
2009-06-22 23:27:02 +00:00
e67b77028e
Add explicit types for shift count constants. This is in preparation for
...
another change that makes the types ambiguous (at least as far as tablegen
is concerned).
llvm-svn: 73909
2009-06-22 22:08:29 +00:00
4582530a2c
For Darwin on ARMv6 and newer, make register r9 available for use as a
...
caller-saved register.
llvm-svn: 73901
2009-06-22 21:01:46 +00:00
4e712de541
Latency information for ARM v6. It's rough and not yet hooked up. Right now we are only using branch latency to determine if-conversion limits.
...
llvm-svn: 73747
2009-06-19 01:51:50 +00:00
02bb33c58d
Initial support for some Thumb2 instructions.
...
Patch by Viktor Kutuzov and Anton Korzh from Access Softek, Inc.
llvm-svn: 73622
2009-06-17 18:13:58 +00:00
409105fc95
Rename methods for the sake of consistency.
...
llvm-svn: 73428
2009-06-15 21:46:20 +00:00
1283c6a066
Part 1.
...
- Change register allocation hint to a pair of unsigned integers. The hint type is zero (which means prefer the register specified as second part of the pair) or entirely target dependent.
- Allow targets to specify alternative register allocation orders based on allocation hint.
Part 2.
- Use the register allocation hint system to implement more aggressive load / store multiple formation.
- Aggressively form LDRD / STRD. These are formed *before* register allocation. It has to be done this way to shorten live interval of base and offset registers. e.g.
v1025 = LDR v1024, 0
v1026 = LDR v1024, 0
=>
v1025,v1026 = LDRD v1024, 0
If this transformation isn't done before allocation, v1024 will overlap v1025 which means it more difficult to allocate a register pair.
- Even with the register allocation hint, it may not be possible to get the desired allocation. In that case, the post-allocation load / store multiple pass must fix the ldrd / strd instructions. They can either become ldm / stm instructions or back to a pair of ldr / str instructions.
This is work in progress, not yet enabled.
llvm-svn: 73381
2009-06-15 08:28:29 +00:00
d93b5b672f
Mark some pattern-less instructions as neverHasSideEffects.
...
llvm-svn: 73252
2009-06-12 20:46:18 +00:00
b6f4538683
Add placeholder for thumb2 stuff
...
llvm-svn: 72593
2009-05-29 23:41:08 +00:00
06928192ae
Update the names of the exception handling sjlj instrinsics to
...
llvm.eh.sjlj.* for better clarity as to their purpose and scope. Add
a description of llvm.eh.sjlj.setjmp to ExceptionHandling.html.
(llvm.eh.sjlj.longjmp documentation coming when that implementation is
added).
llvm-svn: 71758
2009-05-14 00:46:35 +00:00
aeca45dd6f
Add support for GCC compatible builtin setjmp and longjmp intrinsics. This is
...
a supporting preliminary patch for GCC-compatible SjLJ exception handling. Note that these intrinsics are not designed to be invoked directly by the user, but
rather used by the front-end as target hooks for exception handling.
llvm-svn: 71610
2009-05-12 23:59:14 +00:00
64fdacc27f
A few more isAsCheapAsAMove.
...
llvm-svn: 63852
2009-02-05 08:42:55 +00:00
69cc2cbbff
Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.
...
llvm-svn: 60487
2008-12-03 18:15:48 +00:00
30f6f8fdad
Fix MOVrx, MOVsrl_flag, and MOVsra_flag encodings.
...
llvm-svn: 59314
2008-11-14 20:09:11 +00:00
2666f59322
Fix pre- and post-indexed load / store encoding bugs.
...
llvm-svn: 59230
2008-11-13 07:34:59 +00:00
af644b50b4
Consolidate formats; fix FCMPED etc. encodings.
...
llvm-svn: 59107
2008-11-12 07:18:38 +00:00
7095cd2af2
Jump table JIT support. Work in progress.
...
llvm-svn: 58836
2008-11-07 09:06:08 +00:00
98dc53e926
Encode misc arithmetic instructions.
...
llvm-svn: 58828
2008-11-07 01:41:35 +00:00
49d665218c
Encode extend instructions; more clean up.
...
llvm-svn: 58818
2008-11-06 22:15:19 +00:00
aa03cd3336
- Improve naming consistency: Branch -> BrFrm, BranchMisc -> BrMiscFrm.
...
- Consolidate instruction formats.
- Other clean up.
llvm-svn: 58808
2008-11-06 17:48:05 +00:00
47b546d75f
Remove opcode from instruction TS flags; add MOVCC support; fix addrmode3 encoding bug.
...
llvm-svn: 58800
2008-11-06 08:47:38 +00:00
36ae40342f
Handle smul<x><y>, smulw<y>, smla<x><y>, smlaw<y>.
...
llvm-svn: 58793
2008-11-06 03:35:07 +00:00
b870fd8874
Fix so_imm encoding bug; add support for MOVi2pieces.
...
llvm-svn: 58790
2008-11-06 02:25:39 +00:00
2686c8fb34
Fix encoding of multiple instructions with 3 src operands; also handle smmul, smmla, and smmls.
...
llvm-svn: 58789
2008-11-06 01:21:28 +00:00
fd2adbfa28
Encode pic load / store instructions; fix some encoding bugs.
...
llvm-svn: 58780
2008-11-05 23:22:34 +00:00
81889d010c
Restructure ARM code emitter to use instruction formats instead of addressing modes to determine how to encode instructions.
...
llvm-svn: 58764
2008-11-05 18:35:52 +00:00
4d0549e3be
Add binary encoding support for multiply instructions. Some blanks left to fill in, but the basics are there.
...
llvm-svn: 58626
2008-11-03 18:38:31 +00:00
8fce66a47c
Forgot this in last commit.
...
llvm-svn: 58527
2008-10-31 19:11:09 +00:00
b7c01f5f48
Update ARM Insn encoding to get endian-ness to match the documentation (31-0 left to right)
...
llvm-svn: 57524
2008-10-14 20:36:24 +00:00
2753955fc0
Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as
...
parameters instead of raw Constants. This prevents the constants from
being selected by the isel pass, fixing PR2735.
llvm-svn: 57385
2008-10-11 22:08:30 +00:00
f311fe142c
Unconditional branch instruction encoding fix. Needs to use ABI, not AXI, to get the proper opcode bits.
...
llvm-svn: 57262
2008-10-07 21:08:09 +00:00
1d54d4f375
Fix Opcode values of CMP and CMN
...
llvm-svn: 57251
2008-10-07 17:40:46 +00:00
7848cfcd77
Fix addrmode1 instruction encodings; fix bx_ret encoding.
...
llvm-svn: 56277
2008-09-17 07:53:38 +00:00
12134701ec
Revert 56176. All those instruction formats are still needed.
...
llvm-svn: 56180
2008-09-13 01:35:33 +00:00
c5c74f36fd
Eliminate unnecessary instruction formats.
...
llvm-svn: 56176
2008-09-12 23:15:39 +00:00
effb894453
Rename ConstantSDNode::getValue to getZExtValue, for consistency
...
with ConstantInt. This led to fixing a bug in TargetLowering.cpp
using getValue instead of getAPIntValue.
llvm-svn: 56159
2008-09-12 16:56:44 +00:00
fa558788e7
Control flow instruction encodings.
...
llvm-svn: 55601
2008-09-01 08:25:56 +00:00
c288cc0572
ldm / stm instruction encodings.
...
llvm-svn: 55599
2008-09-01 07:48:18 +00:00
c37532b24a
AXI2 and AXI3 instruction encodings.
...
llvm-svn: 55598
2008-09-01 07:34:13 +00:00
169eccc24e
addrmode3 instruction encodings.
...
llvm-svn: 55596
2008-09-01 07:00:14 +00:00
cccca875b1
Rest of addrmode2 instruction encodings.
...
llvm-svn: 55593
2008-09-01 01:27:33 +00:00
01fd3f129a
Addr2 word / byte load encodings.
...
llvm-svn: 55591
2008-08-31 19:02:21 +00:00
9f717afd68
MVN is addrmode1.
...
llvm-svn: 55530
2008-08-29 07:36:24 +00:00
2d37f19ef2
Refactor ARM instruction format definitions into a separate file. No functionality changes.
...
llvm-svn: 55518
2008-08-28 23:39:26 +00:00
2ce6f2ad5e
Rename SDOperand to SDValue.
...
llvm-svn: 54128
2008-07-27 21:46:04 +00:00
0e7b00d79f
Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.
...
llvm-svn: 48380
2008-03-15 00:03:38 +00:00
97925ec704
Final de-tabification.
...
llvm-svn: 47663
2008-02-27 06:33:05 +00:00
1ea55cf816
This commit changes:
...
1. Legalize now always promotes truncstore of i1 to i8.
2. Remove patterns and gunk related to truncstore i1 from targets.
3. Rename the StoreXAction stuff to TruncStoreAction in TLI.
4. Make the TLI TruncStoreAction table a 2d table to handle from/to conversions.
5. Mark a wide variety of invalid truncstores as such in various targets, e.g.
X86 currently doesn't support truncstore of any of its integer types.
6. Add legalize support for truncstores with invalid value input types.
7. Add a dag combine transform to turn store(truncate) into truncstore when
safe.
The later allows us to compile CodeGen/X86/storetrunc-fp.ll to:
_foo:
fldt 20(%esp)
fldt 4(%esp)
faddp %st(1)
movl 36(%esp), %eax
fstps (%eax)
ret
instead of:
_foo:
subl $4, %esp
fldt 24(%esp)
fldt 8(%esp)
faddp %st(1)
fstps (%esp)
movl 40(%esp), %eax
movss (%esp), %xmm0
movss %xmm0, (%eax)
addl $4, %esp
ret
llvm-svn: 46140
2008-01-17 19:59:44 +00:00
9a249b0ce5
rename SDTRet -> SDTNone.
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Move definition of 'trap' sdnode up from x86 instrinfo to targetselectiondag.td.
llvm-svn: 46017
2008-01-15 22:02:54 +00:00
94de7bc3aa
get def use info more correct.
...
llvm-svn: 45821
2008-01-10 05:12:37 +00:00
7250120177
Only mark instructions that load a single value without extension as isSimpleLoad = 1.
...
llvm-svn: 45727
2008-01-07 23:56:57 +00:00
a4ce4f6987
rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate.
...
llvm-svn: 45667
2008-01-06 23:38:27 +00:00
10324d0175
rename isStore -> mayStore to more accurately reflect what it captures.
...
llvm-svn: 45656
2008-01-06 08:36:04 +00:00
f4d55ec4e8
remove explicit isStore flags that are now inferrable.
...
llvm-svn: 45653
2008-01-06 05:55:01 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
6e68381e02
Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled.
...
llvm-svn: 44960
2007-12-12 23:12:09 +00:00
77b13af9a6
Unifacalize the CALLSEQ{START,END} stuff.
...
llvm-svn: 44045
2007-11-13 09:19:02 +00:00
f359fed9f9
Unify CALLSEQ_{START,END}. They take 4 parameters: the chain, two stack
...
adjustment fields, and an optional flag. If there is a "dynamic_stackalloc" in
the code, make sure that it's bracketed by CALLSEQ_START and CALLSEQ_END. If
not, then there is the potential for the stack to be changed while the stack's
being used by another instruction (like a call).
This can only result in tears...
llvm-svn: 44037
2007-11-13 00:44:25 +00:00
933b5b7e62
Add a flag for indirect branch instructions.
...
Target maintainers: please check that the instructions for your target are correctly marked.
llvm-svn: 44012
2007-11-12 07:39:39 +00:00
3e18e504ae
Remove (somewhat confusing) Imp<> helper, use let Defs = [], Uses = [] instead.
...
llvm-svn: 41863
2007-09-11 19:55:27 +00:00
f948772f9e
80 col.
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llvm-svn: 41812
2007-09-10 22:22:23 +00:00
73489273ae
ARM instruction table was modified by adding information to generate multiply instruction of V5TE.
...
llvm-svn: 41626
2007-08-30 23:25:47 +00:00
f7c6effc44
Initial JIT support for ARM by Raul Fernandes Herbster.
...
llvm-svn: 40887
2007-08-07 01:37:15 +00:00
aa39b39eec
Indexed loads each has 2 outputs.
...
llvm-svn: 40658
2007-08-01 00:12:08 +00:00
ac1591be42
No more noResults.
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llvm-svn: 40132
2007-07-21 00:34:19 +00:00
94b5a80b93
Change instruction description to split OperandList into OutOperandList and
...
InOperandList. This gives one piece of important information: # of results
produced by an instruction.
An example of the change:
def ADD32rr : I<0x01, MRMDestReg, (ops GR32:$dst, GR32:$src1, GR32:$src2),
"add{l} {$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
=>
def ADD32rr : I<0x01, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
"add{l} {$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
llvm-svn: 40033
2007-07-19 01:14:50 +00:00
9d41b311fb
Remove clobbersPred. Add an OptionalDefOperand to instructions which have the 's' bit.
...
llvm-svn: 38501
2007-07-10 18:08:01 +00:00
881248c4e1
No need for ccop anymore.
...
llvm-svn: 37965
2007-07-06 23:34:09 +00:00
76a97c5f8a
Do away with ImmutablePredicateOperand.
...
llvm-svn: 37961
2007-07-06 23:22:46 +00:00
5c66888580
PredicateDefOperand -> OptionalDefOperand.
...
llvm-svn: 37931
2007-07-06 01:00:49 +00:00
085314b455
Unbreak the build.
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llvm-svn: 37914
2007-07-05 17:13:19 +00:00
aa3b8014bd
Each ARM use predicate operand is now made up of two components. The new component is the CPSR register.
...
llvm-svn: 37895
2007-07-05 07:13:32 +00:00
e8c1e428f2
Revert the earlier change that removed the M_REMATERIALIZABLE machine
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instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).
llvm-svn: 37728
2007-06-26 00:48:07 +00:00
0c550df9d2
Fix the build.
...
llvm-svn: 37705
2007-06-22 16:59:54 +00:00
c3c949b473
Allow predicated immediate ARM to ARM calls.
...
llvm-svn: 37659
2007-06-19 21:05:09 +00:00
9e82064924
Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad
...
with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.
llvm-svn: 37644
2007-06-19 01:48:05 +00:00
a7ca624028
Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit.
...
llvm-svn: 37643
2007-06-19 01:26:51 +00:00
e8c3cbf971
Mark these instructions clobbersPred. They modify the condition code register.
...
llvm-svn: 37468
2007-06-06 10:17:05 +00:00
9aa5fc8577
Opcode modifier s comes after condition code. e.g. addlts, not addslt.
...
llvm-svn: 37388
2007-06-01 20:51:29 +00:00
a2ab4e5feb
Make jumptable non-predicable for now.
...
llvm-svn: 37381
2007-06-01 00:56:15 +00:00
a6e9a4ce07
For ldrb, strh, etc., the condition code is before the width specifier. e.g. streqh, not strheq.
...
llvm-svn: 37349
2007-05-29 23:32:06 +00:00
d1de276c16
Use AXI3 not AXI2 for appropriate PIC PC-relative loads and stores. Cosmetic.
...
llvm-svn: 37271
2007-05-21 22:42:04 +00:00
7d55f3733e
Add some patterns for PIC PC-relative loads and stores.
...
llvm-svn: 37269
2007-05-21 22:14:33 +00:00
4ae1840d21
Mark calls non-predicable for now. Need to ensure it's the last instruction in the if-converted block or make sure it preserve condition code.
...
llvm-svn: 37199
2007-05-18 01:53:54 +00:00
dcd6cdf896
Make ARM::B isPredicable; Make Bcc and MOVCC condition option a normal operand so they are not predicable.
...
llvm-svn: 37118
2007-05-16 20:50:01 +00:00
01a4227ed1
Conditional branch is not a barrier.
...
llvm-svn: 37103
2007-05-16 07:45:54 +00:00
0f7cbe8370
Add PredicateOperand to all ARM instructions that have the condition field.
...
llvm-svn: 37066
2007-05-15 01:29:07 +00:00
9c031c0ddf
Switch BCC, MOVCCr, etc. to PredicateOperand.
...
llvm-svn: 36948
2007-05-08 21:08:43 +00:00
7e7280b538
change per review
...
llvm-svn: 36519
2007-04-28 00:36:37 +00:00
29c05756b5
Prevent Thumb code from generating ARM instructions
...
llvm-svn: 36518
2007-04-27 22:17:18 +00:00
c39c12a3fa
ARM TLS: implement "general dynamic", "initial exec" and "local exec" models.
...
llvm-svn: 36506
2007-04-27 13:54:47 +00:00
598bc0d9a3
dag combiner just got better at pruning bits. This fixes CodeGen/ARM/rev.ll
...
llvm-svn: 36222
2007-04-17 22:39:58 +00:00
6be85337b0
- Divides the comparisons in two types: comparisons that only use N and Z
...
flags (ARMISD::CMPNZ) and comparisons that use all flags (ARMISD::CMP).
- Defines the instructions: TST, TEQ (ARM) and TST (Thumb).
llvm-svn: 35573
2007-04-02 01:30:03 +00:00
143b0dff31
bugfix: sometimes the spiller puts a load between the "mov lr, pc" and "bx" of a CALL_NOLINK.
...
llvm-svn: 35381
2007-03-27 16:19:21 +00:00
a88c4a74f3
bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted:
...
mov lr, pc
bx lr
So, the function was not called.
llvm-svn: 35218
2007-03-20 17:57:23 +00:00
9e7b838469
Make two piece constant generation as a single instruction. It's re-materialized as a load from constantpool.
...
llvm-svn: 35207
2007-03-20 08:11:30 +00:00
9bb01c9f4f
Fix naming inconsistencies.
...
llvm-svn: 35163
2007-03-19 07:48:02 +00:00
ee2763f76f
Special LDR instructions to load from non-pc-relative constantpools. These are
...
rematerializable. Only used for constant generation for now.
llvm-svn: 35162
2007-03-19 07:20:03 +00:00
5be3e09a30
Constant generation instructions are re-materializable.
...
llvm-svn: 35161
2007-03-19 07:09:02 +00:00
456db39ea9
ARM callseq_end should have a input flag operand so it would be scheduled right after the call.
...
llvm-svn: 33832
2007-02-03 09:11:58 +00:00
83f35170fa
- Fix codegen for pc relative constant (e.g. JT) in thumb mode:
...
.set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
add r1, pc, #PCRELV0
This is not legal since add r1, pc, #c requires the constant be a multiple of 4.
Do the following instead:
.set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
mov r1, #PCRELV0
add r1, pc
- In thumb mode, it's not possible to use .set generate a pc relative stub
address. The stub is ARM code which is in a different section from the thumb
code. Load the value from a constpool instead.
- Some asm printing clean up.
llvm-svn: 33664
2007-01-30 20:37:08 +00:00
f9e5445ed4
Make LABEL a builtin opcode.
...
llvm-svn: 33537
2007-01-26 14:34:52 +00:00
77c15ded10
Code clean up. Use def : pat instead of defining new instructions.
...
llvm-svn: 33368
2007-01-19 20:27:35 +00:00
10043e215b
ARM backend contribution from Apple.
...
llvm-svn: 33353
2007-01-19 07:51:42 +00:00
fd68718467
implement missing compares
...
patch by Lauro
bug fixed by me
llvm-svn: 32795
2006-12-31 18:52:39 +00:00
7251e57ff8
Implement SELECT_CC (f32/f64) for ARM.
...
llvm-svn: 32762
2006-12-28 13:11:14 +00:00
865b979833
remove duplicated line
...
bug noticed by Lauro
llvm-svn: 32761
2006-12-28 12:51:40 +00:00
d0ced3f1e8
This patch defines extloadi1 and fixes an internal compiler error on
...
arm.
llvm-svn: 32760
2006-12-26 19:30:42 +00:00
67d1c8ae0e
more general matching of the MVN instruction
...
llvm-svn: 32484
2006-12-12 17:10:13 +00:00
9fa0a26808
use MVN to handle small negative constants
...
llvm-svn: 32459
2006-12-12 01:03:11 +00:00
1bbe581d0f
add mvn
...
llvm-svn: 32454
2006-12-12 00:37:38 +00:00
87f4382163
fix truncstorei1
...
llvm-svn: 32364
2006-12-08 18:41:21 +00:00
5f7ab1b964
implement load effective address similar to the alpha backend
...
remove lea_addri and the now unused memri addressing mode
llvm-svn: 31592
2006-11-09 13:58:55 +00:00
708cb60588
initial implementation of addressing mode 2
...
TODO: fix lea_addri
llvm-svn: 31552
2006-11-08 17:07:32 +00:00
9ac6442db6
remove dead/redundant vars
...
llvm-svn: 31435
2006-11-03 23:48:56 +00:00
0cd8d14c7c
implement zextload bool and truncstore bool
...
llvm-svn: 31348
2006-11-01 14:13:27 +00:00
aaeede0aa2
implement uncond branch insertion, mark branches with isBranch.
...
llvm-svn: 31160
2006-10-24 16:47:57 +00:00
b43efe86f5
implement STRB and STRH
...
llvm-svn: 31138
2006-10-23 20:34:27 +00:00
336d62e99a
use Pat to implement extloadi8 and extloadi16
...
llvm-svn: 31052
2006-10-19 17:05:03 +00:00
f8274c0318
implement undef
...
llvm-svn: 31049
2006-10-19 13:45:00 +00:00
ff62819e2f
implement extloadi8 and extloadi16
...
llvm-svn: 31047
2006-10-19 12:45:04 +00:00
bad440742e
add blx
...
llvm-svn: 31037
2006-10-18 16:21:43 +00:00
01dd97a8aa
add isTerminatortto b and bcond
...
llvm-svn: 31036
2006-10-18 16:20:57 +00:00
3968263ca8
add the FPUnaryOp and DFPUnaryOp classes
...
llvm-svn: 31013
2006-10-17 20:45:22 +00:00
99bf133d58
add FABSS and FABSD
...
llvm-svn: 31012
2006-10-17 20:33:13 +00:00
2d7d14262a
remove extra [] in stores
...
llvm-svn: 31008
2006-10-17 18:29:14 +00:00
19398ec86e
initial implementation of addressing mode 5
...
llvm-svn: 31002
2006-10-17 18:04:53 +00:00
418c8e69bb
add FSTD and FSTS
...
llvm-svn: 30996
2006-10-17 13:36:07 +00:00
c31ee94920
add FCPYS and FCPYD
...
llvm-svn: 30995
2006-10-17 13:13:23 +00:00
afdd47ace4
add fdivs e fdivd
...
llvm-svn: 30988
2006-10-16 21:50:04 +00:00
f719c5f43d
expand ISD::SHL_PARTS, ISD::SRA_PARTS and ISD::SRL_PARTS
...
llvm-svn: 30987
2006-10-16 21:10:32 +00:00
e341d60f53
define the DFPBinOp class
...
llvm-svn: 30981
2006-10-16 18:39:22 +00:00
f63752f94b
add the FPBinOp class
...
llvm-svn: 30980
2006-10-16 18:32:36 +00:00
b23dc14135
define the Addr1BinOp class
...
llvm-svn: 30979
2006-10-16 18:18:14 +00:00
203922d083
define the IntBinOp class and use it to implement the multiply instructions
...
llvm-svn: 30978
2006-10-16 17:57:20 +00:00
c4abf8dc5b
fix assembly syntax
...
llvm-svn: 30977
2006-10-16 17:38:12 +00:00
Evan Cheng