Commit Graph

6844 Commits

Author SHA1 Message Date
Sean Callanan 9f6c622f88 Fixed handling of immediate operand sizes, which
weren't properly reflecting the OperandSize attribute
of the instruction leading to improper decoding of
certain instructions with the 66H prefix.  Also added
a test case for this.

llvm-svn: 117084
2010-10-22 01:24:11 +00:00
Kevin Enderby 0138a05557 More tweaks to X86 instructions to allow the 'w' suffix in places it makes
sense, when the instruction takes the 16-bit ax register or m16 memory
location.  These changes to llvm-mc matches what the darwin assembler allows
for these instructions.  Also added the missing flex (without the wait prefix)
and ud2a as an alias to ud2 (still to add ud2b).

llvm-svn: 117031
2010-10-21 17:16:46 +00:00
Duncan Sands ee4eb2bad1 Remove some variables that are never really used
(gcc-4.6 warns about these).

llvm-svn: 117021
2010-10-21 16:03:28 +00:00
Duncan Sands 1f0d37e892 Add parentheses to pacify gcc, which warns otherwise.
llvm-svn: 117020
2010-10-21 16:02:12 +00:00
Michael J. Spencer f509c6ca27 X86: Add alloca probing to dynamic alloca on Windows. Fixes PR8424.
llvm-svn: 116984
2010-10-21 01:41:01 +00:00
Michael J. Spencer 83ce5f181f CodeGen-Windows: Only emit _fltused if a VarArg function is called with floating point args.
This should be the minimum set of functions that could possibly need it.

llvm-svn: 116978
2010-10-21 00:08:21 +00:00
Michael J. Spencer 9cafc872ab Fix Whitespace.
llvm-svn: 116972
2010-10-20 23:40:27 +00:00
Dale Johannesen 320a553319 Remove Synthesizable from the Type system; as MMX vector
types are no longer Legal on X86, we don't need it.
No functional change.  8499854.

llvm-svn: 116947
2010-10-20 21:32:10 +00:00
Rafael Espindola 89f6613e76 Handle _GLOBAL_OFFSET_TABLE_ correctly.
llvm-svn: 116932
2010-10-20 16:46:08 +00:00
Evan Cheng 63c7608c34 Re-enable register pressure aware machine licm with fixes. Hoist() may have
erased the instruction during LICM so UpdateRegPressureAfter() should not
reference it afterwards.

llvm-svn: 116845
2010-10-19 18:58:51 +00:00
Daniel Dunbar 418204e523 Revert r116781 "- Add a hook for target to determine whether an instruction def
is", which breaks some nightly tests.

llvm-svn: 116816
2010-10-19 17:14:24 +00:00
Michael J. Spencer 3e64de9504 X86: Add MS-CRT libcalls.
llvm-svn: 116801
2010-10-19 07:32:52 +00:00
Michael J. Spencer 8b382e7e10 Fix Whitespace.
llvm-svn: 116800
2010-10-19 07:32:42 +00:00
Evan Cheng 8249dfe6ce - Add a hook for target to determine whether an instruction def is
"long latency" enough to hoist even if it may increase spilling. Reloading
  a value from spill slot is often cheaper than performing an expensive
  computation in the loop. For X86, that means machine LICM will hoist
  SQRT, DIV, etc. ARM will be somewhat aggressive with VFP and NEON
  instructions.
- Enable register pressure aware machine LICM by default.

llvm-svn: 116781
2010-10-19 00:55:07 +00:00
Kevin Enderby 49843c0162 Added a few tweaks to the Intel Descriptor-table support instructions to allow
word forms and suffixed versions to match the darwin assembler in 32-bit and
64-bit modes.  This is again for use just with assembly source for llvm-mc .

llvm-svn: 116773
2010-10-19 00:01:44 +00:00
Rafael Espindola e3dc9e2ea1 Produce ELF::R_386_GOTPC relocations.
llvm-svn: 116728
2010-10-18 18:36:12 +00:00
Kevin Enderby b9783dd9bc Added a handful of x86-32 instructions that were missing so that llvm-mc would
be more complete.  These are only expected to be used by llvm-mc with assembly
source so there is no pattern, [], in the .td files.  Most are being added to
X86InstrInfo.td as Chris suggested and only comments about register uses are
added.  Suggestions welcome on the .td changes as I'm not sure on every detail
of the x86 records.  More missing instructions will be coming.

llvm-svn: 116716
2010-10-18 17:04:36 +00:00
Rafael Espindola 4262a22225 Add a MCObjectFormat class so that code common to all targets that use a
single object format can be shared.

This also adds support for

mov zed+(bar-foo), %eax

on ELF and COFF targets.

llvm-svn: 116675
2010-10-16 18:23:53 +00:00
Michael J. Spencer 5e683250ee X86-Windows: Emit an undefined global __fltused symbol when targeting Windows
if any floating point arguments are passed to an external function.

llvm-svn: 116665
2010-10-16 08:25:41 +00:00
Rafael Espindola 2216af3fa8 Fix another case where we were preferring instructions with large
immediates instead of 8 bits ones.

llvm-svn: 116410
2010-10-13 17:14:25 +00:00
Rafael Espindola 8ea9b0eb32 Fix PR8365 by adding a more specialized Pat that checks if an 'and' with
8 bit constants can be used.

llvm-svn: 116403
2010-10-13 13:31:20 +00:00
Evan Cheng d565b44a98 Turn some fp stackifier assertion into errors to avoid silently generating bad code when assertions are off. rdar://8540457.
llvm-svn: 116368
2010-10-12 23:19:28 +00:00
Eric Christopher 604e142844 Combine these together - should probably have some text associated
that says what why what we just asserted is wrong.

llvm-svn: 116333
2010-10-12 19:44:17 +00:00
Nick Lewycky eb7b91d417 Mark variable 'NoImplicitFloatOps' used only in an assert as used.
llvm-svn: 116323
2010-10-12 18:18:03 +00:00
Dan Gohman 395a898b2b Initial va_arg support for x86-64. Patch by David Meyer!
llvm-svn: 116319
2010-10-12 18:00:49 +00:00
Jakob Stoklund Olesen aec745326a Remove the x86 MOV{32,64}{rr,rm,mr}_TC instructions.
The reg-reg copies were no longer being generated since copyPhysReg copies
physical registers only.

The loads and stores are not necessary - The TC constraint is imposed by the
TAILJMP and TCRETURN instructions, there should be no need for constrained loads
and stores.

llvm-svn: 116314
2010-10-12 17:15:00 +00:00
Andrew Trick e01c9001c9 Fixes bug 8297: i386 cmpxchg8b, missing MachineMemOperand
llvm-svn: 116214
2010-10-11 19:02:04 +00:00
Michael J. Spencer 8dedb62019 X86: Call ulldiv and ftol2 on Windows instead of their libgcc eqivilents.
llvm-svn: 116188
2010-10-11 05:29:15 +00:00
Michael J. Spencer 00765e5be0 X86: MinGW should always use libgcc on Windows.
llvm-svn: 116177
2010-10-10 23:11:06 +00:00
Michael J. Spencer 7a573a5e1f X86: Call _alldiv instead of __divdi3 on Windows (excluding cygwin).
llvm-svn: 116174
2010-10-10 22:04:34 +00:00
Michael J. Spencer bee1f7f5ba Fix Whitespace.
llvm-svn: 116173
2010-10-10 22:04:20 +00:00
Michael J. Spencer 530ce85b3e Fix Whitespace.
llvm-svn: 116149
2010-10-09 11:00:50 +00:00
Chris Lattner c951cfe6a0 add jit support for the new psuedo instructions I added for
the add/or xform.  The JIT isn't mcized yet, boo.

This fixes Olden/voronoi, bh and a ton of other stuff that
uses the jit.

llvm-svn: 116125
2010-10-08 23:59:27 +00:00
Chris Lattner 8eeb5013cd machine a mutable machineinstr down into emitInstruction.
llvm-svn: 116124
2010-10-08 23:54:01 +00:00
Cameron Esfahani d57f9ecd4a Recommit 116056, now with the missing file...
llvm-svn: 116083
2010-10-08 19:24:18 +00:00
Andrew Trick cf97db2402 reverting 116056: win64_params.ll may need to be conditionalized?
llvm-svn: 116063
2010-10-08 17:22:42 +00:00
Cameron Esfahani a07b5c291d Small patch to restore home register stack space allocation for the Win64 case. Add test case. This code eventually needs to be tighter, since it's always allocating it, even in leaf routines.
llvm-svn: 116056
2010-10-08 10:31:30 +00:00
Chris Lattner 35e6ce479c fix a subtle bug I introduced in my refactoring, where we stopped preferring
the i8 versions of instructions in some cases.  In test6, we started 
generating:

	cmpq	$0, -8(%rsp)            ## encoding: [0x48,0x81,0x7c,0x24,0xf8,0x00,0x00,0x00,0x00]
                                        ## <MCInst #478 CMP64mi32
                                        ##  <MCOperand Reg:114>
                                        ##  <MCOperand Imm:1>
                                        ##  <MCOperand Reg:0>
                                        ##  <MCOperand Imm:-8>
                                        ##  <MCOperand Reg:0>
                                        ##  <MCOperand Imm:0>>

instead of:

	cmpq	$0, -8(%rsp)            ## encoding: [0x48,0x83,0x7c,0x24,0xf8,0x00]
                                        ## <MCInst #479 CMP64mi8
                                        ##  <MCOperand Reg:114>
                                        ##  <MCOperand Imm:1>
                                        ##  <MCOperand Reg:0>
                                        ##  <MCOperand Imm:-8>
                                        ##  <MCOperand Reg:0>
                                        ##  <MCOperand Imm:0>>

Fix this and add some comments.

llvm-svn: 116053
2010-10-08 05:12:14 +00:00
Chris Lattner dd77477690 reapply: Use the new TB_NOT_REVERSABLE flag instead of special
reapply: reimplement the second half of the or/add optimization.  We should now

with no changes.  Turns out that one missing "Defs = [EFLAGS]" can upset things
a bit.

llvm-svn: 116040
2010-10-08 03:57:25 +00:00
Chris Lattner 626656a562 reapply the patch reverted in r116033:
"Reimplement (part of) the or -> add optimization.  Matching 'or' into 'add'"

With a critical fix: the add pseudos clobber EFLAGS.

llvm-svn: 116039
2010-10-08 03:54:52 +00:00
Daniel Dunbar 8f21f9c1fb Revert "Reimplement (part of) the or -> add optimization. Matching 'or' into
'add'", which seems to have broken just about everything.

llvm-svn: 116033
2010-10-08 02:07:32 +00:00
Daniel Dunbar 5b2a411c77 Revert "Use the new TB_NOT_REVERSABLE flag instead of special ", which depends
on r116007, which I am about to revert.

llvm-svn: 116032
2010-10-08 02:07:29 +00:00
Daniel Dunbar efdf08b5b8 Revert "reimplement the second half of the or/add optimization. We should now",
which depends on r116007, which I am about to revert.

llvm-svn: 116031
2010-10-08 02:07:26 +00:00
Chris Lattner 134f415bf8 reimplement the second half of the or/add optimization. We should now
only end up emitting LEA instead of OR.  If we aren't able to promote
something into an LEA, we should never be emitting it as an ADD.

Add some testcases that we emit "or" in cases where we used to produce
an "add".

llvm-svn: 116026
2010-10-08 01:05:10 +00:00
Chris Lattner e2245542ce Use the new TB_NOT_REVERSABLE flag instead of special
casing FsMOVAPDrr/FsMOVAPSrr.

llvm-svn: 116016
2010-10-08 00:03:02 +00:00
Chris Lattner 0921bfdf36 simplify some map operations.
llvm-svn: 116014
2010-10-07 23:57:02 +00:00
Chris Lattner 4fb38d3cd3 Reimplement (part of) the or -> add optimization. Matching 'or' into 'add'
is general goodness because it allows ORs to be converted to LEA to avoid
inserting copies.  However, this is bad because it makes the generated .s
file less obvious and gives valgrind heartburn (tons of false positives in
bitfield code).

While the general fix should be in valgrind, we can at least try to avoid
emitting ADD instructions that *don't* get promoted to LEA.  This is more
work because it requires introducing pseudo instructions to represents
"add that knows the bits are disjoint", but hey, people really love valgrind.

This fixes this testcase:
https://bugs.kde.org/show_bug.cgi?id=242137#c20

the add r/i cases are coming next.

llvm-svn: 116007
2010-10-07 23:36:18 +00:00
Chris Lattner 1c090c00bc Reduce casting in various tables by defining the table
with the right types.

llvm-svn: 116001
2010-10-07 23:08:41 +00:00
Chris Lattner 70a7b54f97 simplify code: don't build up vector only to assert it is empty.
llvm-svn: 115997
2010-10-07 22:26:19 +00:00
Chris Lattner f5c60d8156 convert test to use the existing classes that the multipatterns
use.  Since TEST is completely different than all other binops,
don't define a multipattern for it.

This completes factorization of binops.

llvm-svn: 115982
2010-10-07 21:31:03 +00:00
Chris Lattner ae8d67d3bb convert cmp to use a multipattern
llvm-svn: 115978
2010-10-07 20:56:25 +00:00
Evan Cheng 5c31bf0619 Canonicalize X86ISD::MOVDDUP nodes to v2f64 to make sure all cases match. Also eliminate unneeded isel patterns. rdar://8520311
llvm-svn: 115977
2010-10-07 20:50:20 +00:00
Chris Lattner a8c0bbb869 reduce redundancy between pattern copies.
llvm-svn: 115968
2010-10-07 20:14:23 +00:00
Chris Lattner 9fece2bea2 the opcode for BinOpMI/BinOpMI8 is always the same, remove the argument.
llvm-svn: 115967
2010-10-07 20:06:24 +00:00
Chris Lattner 752b60bc01 convert adc/sbb to a multipattern. Because the adde/sube nodes
are not defined as returning EFLAGS (like add_flag and friends),
the entire multipattern and several of the subclasses need to be
cloned.

This could be handled through better instantiation support in tblgen,
but it isn't meta enough.

llvm-svn: 115964
2010-10-07 20:01:55 +00:00
Jakob Stoklund Olesen c6a6e9ba7c Fix obvious mistake pointed out by Michael Spencer.
llvm-svn: 115952
2010-10-07 18:47:10 +00:00
Chris Lattner 67677515ac add support for isConvertibleToThreeAddress to ArithBinOpEFLAGS,
allowing us to convert ADD over.  deletes 160 lines of .td file.

llvm-svn: 115897
2010-10-07 01:37:01 +00:00
Chris Lattner 4fc52f6fa0 Fix a few issues in ArithBinOpEFLAGS that made it specific to and.
Start using ArithBinOpEFLAGS for OR, XOR, and SUB.

This removes 500 lines from the .td file.  Now AND/OR/XOR/SUB are all
defined exactly the same way instead of being close relatives.

llvm-svn: 115896
2010-10-07 01:26:27 +00:00
Chris Lattner 26d6a0449a Convert 'and' to single instance of a multipattern
which instantiates the 34 versions of and all in one
swoop.  The BaseOpc/BaseOpc2/BaseOpc4 stuff should not
be required, but tblgen's feeble brain explodes when I
use Or4<BaseOpc>.V in the multipattern.

No change in the generated .inc files.

llvm-svn: 115893
2010-10-07 01:10:20 +00:00
Chris Lattner b71a77d7b8 add a new BinOpAI class to represent the immediate form that directly acts on EAX.
This does change the generated .inc files to include the implicit use/def of eax.
Since these instructions are only generated by the assembler and disassembler it
doesn't actually matter though.

llvm-svn: 115885
2010-10-07 00:43:39 +00:00
Chris Lattner 894d2e6146 add a bunch of classes for other common patterns.
As usual, no change in generated .inc files.

llvm-svn: 115882
2010-10-07 00:35:28 +00:00
Chris Lattner e17d7212f1 Define a new BinOpRI8 class and use it to define the imm8 versions of and.
llvm-svn: 115880
2010-10-07 00:12:45 +00:00
Jakob Stoklund Olesen b19bae4e3e Constrain the offset register to a *_NOSP register class when inserting LEA
instructions.

This unbreaks the machine code verifier and fixes PR8317.

llvm-svn: 115879
2010-10-07 00:07:26 +00:00
Chris Lattner 356f16c142 add the pattern operator to match to X86TypeInfo, use this to
convert AND64ri32 to use BinOpRI.

llvm-svn: 115878
2010-10-07 00:01:39 +00:00
Jakob Stoklund Olesen b2dd88db6b Properly handle GR32_NOSP in X86RegisterInfo::getMatchingSuperRegClass.
This function looks like it is about ready to be generated by TebleGen.

llvm-svn: 115876
2010-10-06 23:56:46 +00:00
Chris Lattner 6e85be2ecf enhance X86TypeInfo to include information about the encoding and
operand kind for immediates.  Use these to define a new BinOpRI
class and switch AND8/16/32ri over to it.  AND64ri32 needs some
more refactoring before it can make the switcheroo.

llvm-svn: 115752
2010-10-06 05:55:42 +00:00
Chris Lattner 94eff91dc0 add a class for _REV nodes.
llvm-svn: 115748
2010-10-06 05:35:22 +00:00
Chris Lattner a46073b56b sink more intelligence into the ITy base class. Now it knows
that i8 operations are even and i16,i32,i64 operations have a
low opcode bit set (they are odd).

llvm-svn: 115747
2010-10-06 05:28:38 +00:00
Chris Lattner b6da2be7e8 refactor things a bit, now the REX_W and OpSize prefix bytes are inferred from the type info.
llvm-svn: 115745
2010-10-06 05:20:57 +00:00
Chris Lattner 7bbd809b6c with tblgen suitably extended, we can now get the load node from typeinfo.
llvm-svn: 115744
2010-10-06 04:58:43 +00:00
Chris Lattner 1fc81e90f7 lets go all meta and define new X86 type wrappers that declare the associated
gunk that goes along with an MVT (e.g. reg class, preferred load operation,
memory operand)

llvm-svn: 115727
2010-10-06 00:45:24 +00:00
Chris Lattner eadaeaab93 introduce a new BinOpRM class and use it to factor AND*rm. This points out
that I need a heavier handed approach to get ultimate factorization.

llvm-svn: 115726
2010-10-06 00:30:49 +00:00
Chris Lattner 9402633637 remove the !nameconcat tblgen feature. It "shorthand" and only used in 4 places
where !cast is just as short.

llvm-svn: 115722
2010-10-06 00:19:21 +00:00
Chris Lattner 61ea00b494 allow !strconcat to take more than two operands to eliminate
!strconcat(!strconcat(!strconcat(!strconcat

Simplify some x86 td files to use it.

llvm-svn: 115719
2010-10-05 23:58:18 +00:00
Chris Lattner 97b1368ae3 associate the instruction suffix letter with the integer gpr
register class, and use this to simplify use of BinOpRR.

llvm-svn: 115716
2010-10-05 23:43:04 +00:00
Chris Lattner 7359194b63 introduce a new BinOpRR class, and convert 4 and instructions to use it.
llvm-svn: 115715
2010-10-05 23:32:05 +00:00
Chris Lattner cff5b0ea36 Move cmov pseudo instructions to InstrCompiler,
convert all the rest of the cmovs to the multiclass,
with good results:

 X86InstrCMovSetCC.td |  598 +--------------------------------------------------
 X86InstrCompiler.td  |   61 +++++
 2 files changed, 77 insertions(+), 582 deletions(-)

llvm-svn: 115707
2010-10-05 23:09:10 +00:00
Chris Lattner 1a1c600110 Use #NAME# to have the CMOV multiclass define things with the same names as before
(e.g. CMOVBE16rr instead of CMOVBErr16).

llvm-svn: 115705
2010-10-05 23:00:14 +00:00
Chris Lattner 7538ed80a9 enhance tblgen to support anonymous defm's, use this to
simplify the X86 CMOVmr's.

llvm-svn: 115702
2010-10-05 22:51:56 +00:00
Chris Lattner fa25dd9548 convert cmov mr patterns to use a multipattern. Death to redundancy
and verbosity

llvm-svn: 115701
2010-10-05 22:42:54 +00:00
Chris Lattner 0067ee02f9 switch CMOVBE to the multipattern:
21 insertions(+), 53 deletions(-)

Moar change coming before I switch the rest.

llvm-svn: 115697
2010-10-05 22:23:58 +00:00
Chris Lattner 907d86db22 fix a bug I introduced in r115669, which ended up with MOV64mr_TC
not getting marked as mayStore.  This fixes llvm-gcc bootstrap.

llvm-svn: 115693
2010-10-05 22:16:48 +00:00
Chris Lattner c3a767e9b0 add a multiclass for cmov's, but don't start using it yet.
llvm-svn: 115692
2010-10-05 22:01:02 +00:00
Chris Lattner aa02c1c91d use a multipattern to define setcc instructions:
X86InstrCMovSetCC.td |  200 ++++++---------------------------------------------
 1 file changed, 27 insertions(+), 173 deletions(-)

llvm-svn: 115689
2010-10-05 21:34:29 +00:00
Chris Lattner 8f4f1d1136 move SETB pseudos into the same place in InstrCompiler.td
llvm-svn: 115686
2010-10-05 21:18:04 +00:00
Chris Lattner 13111b08fb Replace a gross hack (the MOV64ri_alt instruction) with a slightly less
gross hack (having the asmmatcher handle the alias).

llvm-svn: 115685
2010-10-05 21:09:45 +00:00
Chris Lattner ab85ef9e55 distribute the rest of the contents of X86Instr64bit.td out to
the right places.  X86Instr64bit.td now dies, long live x86-64!

llvm-svn: 115669
2010-10-05 20:49:15 +00:00
Chris Lattner 27c763d342 move the rest of the simple 64-bit arithmetic into InstrArithmetic.td
llvm-svn: 115663
2010-10-05 20:35:37 +00:00
Chris Lattner c2f5e5764f continue moving 64-bit stuff into X86InstrArithmetic.td
llvm-svn: 115660
2010-10-05 20:23:31 +00:00
Chris Lattner 7552d15d19 move 64-bit add and adc to InstrArithmetic.
llvm-svn: 115632
2010-10-05 16:59:08 +00:00
Chris Lattner 182e87caaf rewrote two addr constraints so that they are only set, not set and then nestedly cleared.
llvm-svn: 115631
2010-10-05 16:52:25 +00:00
Chris Lattner 39c70f4833 split the 32-bit integer arithmetic instructions out to their own file.
llvm-svn: 115627
2010-10-05 16:39:12 +00:00
Chris Lattner 1818dd510e integrate the 64-bit shifts into X86InstrShiftRotate.td. Enough for tonight.
llvm-svn: 115608
2010-10-05 07:13:35 +00:00
Chris Lattner 1b3aa8678e move 32-bit shift and rotates out to their own file.
llvm-svn: 115607
2010-10-05 07:00:12 +00:00
Chris Lattner 89497a990e add new file
llvm-svn: 115606
2010-10-05 06:52:35 +00:00
Chris Lattner a68466c202 move sign and zero extensions out to their own file.
llvm-svn: 115605
2010-10-05 06:52:26 +00:00
Chris Lattner 84571a1581 move some instructions from Instr64Bit -> InstrInfo.
bswap32 doesn't read eflags.

llvm-svn: 115604
2010-10-05 06:47:35 +00:00
Chris Lattner da8c94ef44 move CMOV_FR32 and friends to InstrCompiler, since they are
pseudo instructions.

Move POPCNT to InstrSSE since they are SSE4 instructions.

llvm-svn: 115603
2010-10-05 06:41:40 +00:00
Chris Lattner 44a5a2b569 move various pattern matching support goop out of X86Instr64Bit, to live
with the 32-bit stuff.

llvm-svn: 115602
2010-10-05 06:37:31 +00:00
Chris Lattner fa9b058eef split conditional moves and setcc's out to their own file.
llvm-svn: 115601
2010-10-05 06:33:16 +00:00
Chris Lattner f9594ba4e7 move string pseudo instructions to InstrCompiler consolidate 64-bit and 32-bit together.
llvm-svn: 115600
2010-10-05 06:27:48 +00:00
Chris Lattner c184a57e98 move the atomic pseudo instructions out to X86InstrCompiler.td
llvm-svn: 115599
2010-10-05 06:22:35 +00:00
Chris Lattner c793f8bca6 move more pseudo instructions out to X86InstrCompiler.td
llvm-svn: 115598
2010-10-05 06:10:16 +00:00
Chris Lattner 52d3935dfe move VMX instructions out to their own file.
llvm-svn: 115597
2010-10-05 06:06:53 +00:00
Chris Lattner ae33f5d93b continue moving stuff out to X86InstrSystem.td. Move
control flow stuff out to X86InstrControl.td.  Move
some compiler pseudo instructions and Pat<> patterns
out to X86InstrCompiler.td

llvm-svn: 115596
2010-10-05 06:04:14 +00:00
Chris Lattner dec85b8c64 refactor .td files a bit, moving system instructions out to X86InstrSystem.td
llvm-svn: 115591
2010-10-05 05:32:15 +00:00
Bill Wendling 402e54822b The pshufw instruction came about in MMX2 when SSE was introduced. Don't place
it in with the SSSE3 instructions.

Steward! Could you place this chair by the aft sun deck? I'm trying to get away
from the Astors. They are such boors!

llvm-svn: 115552
2010-10-04 20:24:01 +00:00
Anton Korobeynikov d77a443631 va_args support for Win64.
Patch by Cameron!

llvm-svn: 115480
2010-10-03 22:52:07 +00:00
Anton Korobeynikov ff85688559 Properly emit stack probe on win64 (for non-mingw targets).
Based on the patch by Cameron Esfahani!

llvm-svn: 115479
2010-10-03 22:02:38 +00:00
Eli Friedman bb48e26732 Add 3DNowA instructions.
llvm-svn: 115477
2010-10-03 20:23:13 +00:00
Chris Lattner d3593c3a8e the immediate field of pshufw is actually an 8-bit field, not a 8-bit field that is sign extended. This fixes PR8288
llvm-svn: 115473
2010-10-03 19:09:13 +00:00
Rafael Espindola 66e08d43d2 Jim Asked us to move DataLayout on ARM back to the most specialized classes. Do
so and also change X86 for consistency.

Investigating if this can be improved a bit.

llvm-svn: 115469
2010-10-03 18:59:45 +00:00
Chris Lattner b44b202d66 add support for the prefetch/prefetchw instructions, move femms into
the right file.  The assembler supports all the 3dnow instructions now,
but not the "3dnowa" ones.

llvm-svn: 115468
2010-10-03 18:42:30 +00:00
Chris Lattner 3a0a620c2e what the heck, add support for the rest of the 3dNow! binary operations.
llvm-svn: 115467
2010-10-03 18:24:18 +00:00
Chris Lattner 45270db916 Implement support for the bizarre 3DNow! encoding (which is unlike anything
else in X86), and add support for pavgusb.  This is apparently the
only instruction (other than movsx) that is preventing ffmpeg from building
with clang.

If someone else is interested in banging out the rest of the 3DNow! 
instructions, it should be quite easy now.

llvm-svn: 115466
2010-10-03 18:08:05 +00:00
Chris Lattner ae1a9de083 stub out a header to put 3dNow! instructions into.
llvm-svn: 115429
2010-10-02 23:06:23 +00:00
Chris Lattner 4756bbeba0 fix a regression introduced in r115243, in which the instruction
backing int_x86_ssse3_pshuf_w got removed.  This caused PR8280.

llvm-svn: 115422
2010-10-02 21:32:15 +00:00
Jim Grosbach 0e854f3d43 Rename the AsmPrinter directory to InstPrinter for those targets that have
been MC-ized for assembly printing. MSP430 is mostly so, but still has the
asm printer and lowering code in the printer subdir for the moment.

llvm-svn: 115360
2010-10-01 22:39:28 +00:00
Benjamin Kramer 14e909a942 Delete token *after* reading from it.
llvm-svn: 115311
2010-10-01 12:25:27 +00:00
Dale Johannesen dd224d2333 Massive rewrite of MMX:
The x86_mmx type is used for MMX intrinsics, parameters and
return values where these use MMX registers, and is also
supported in load, store, and bitcast.

Only the above operations generate MMX instructions, and optimizations
do not operate on or produce MMX intrinsics. 

MMX-sized vectors <2 x i32> etc. are lowered to XMM or split into
smaller pieces.  Optimizations may occur on these forms and the
result casted back to x86_mmx, provided the result feeds into a
previous existing x86_mmx operation.

The point of all this is prevent optimizations from introducing
MMX operations, which is unsafe due to the EMMS problem.

llvm-svn: 115243
2010-09-30 23:57:10 +00:00
Jim Grosbach c6e13f7383 Clean up asm writer usage for x86 and msp430 to flag that the writer should
use MC instructions in the printInstruction() method via the tablegen flag
for it rather than a #define prior to including the autogenerated bits.

llvm-svn: 115238
2010-09-30 23:40:25 +00:00
Chris Lattner 73a7caee4b preemptively add the rest of the non-n fpstack instructions.
llvm-svn: 115168
2010-09-30 17:11:29 +00:00
Chris Lattner 4373badcdf implement support for finit, PR8258
llvm-svn: 115156
2010-09-30 16:42:53 +00:00
Chris Lattner adc0dbe470 add support for fstcw, PR8259
llvm-svn: 115154
2010-09-30 16:39:29 +00:00
Kevin Enderby bad267fa05 Adds getPointerSize() to the AsmBackend which will be needed by the final patch
for the dwarf .loc support to emit dwarf line number tables.

llvm-svn: 115153
2010-09-30 16:38:07 +00:00
Rafael Espindola 70d6e0e0ff Correctly produce R_X86_64_32 or R_X86_64_32S.
With this patch in

movq    $foo, foo(%rip)
foo:
.long   foo

We produce a R_X86_64_32S for the first relocation and R_X86_64_32 for the
second one.

llvm-svn: 115134
2010-09-30 03:11:42 +00:00
Eric Christopher 0574cc556a Noticed by inspection when looking for other cmov bits.
llvm-svn: 115100
2010-09-29 23:00:29 +00:00
Nick Lewycky 23ebf4b319 Add parens to fix GCC warning:
lib/Target/X86/X86MCCodeEmitter.cpp: 190: error: suggest parentheses around '&&' within '||'

llvm-svn: 115064
2010-09-29 18:56:57 +00:00
Chris Lattner 2b43c1cf42 implement rdar://8491845 - Gas supports commuted forms of non-commutable instructions.
llvm-svn: 115061
2010-09-29 18:39:16 +00:00
Chris Lattner 8f7851d2b4 fix rdar://8490728 - llvm-mc rejects gpr64 form of 'movmskpd'
llvm-svn: 115029
2010-09-29 05:05:03 +00:00
Chris Lattner 52e6020883 add assembler support for the cvtsd2sil/cvtsd2siq mnemonics, rdar://8456382
llvm-svn: 115027
2010-09-29 04:55:40 +00:00
Chris Lattner 5da7f9fcfd make the x86 mccode emitter emit the 0x67 and 0x66 prefix bytes in the same
order as cctools for diffability.

llvm-svn: 115022
2010-09-29 03:43:43 +00:00
Chris Lattner a4e1c74947 implement support for 32-bit address operands in 64-bit mode, which
are defined to emit the 0x67 prefix byte.  rdar://8482675

llvm-svn: 115021
2010-09-29 03:33:25 +00:00
Chris Lattner f60062fd55 add basic avx support to the disassembler, also teach it about ssmem/sdmem
operands.

With this done, we can remove the _Int suffixes from the round instructions
without the disassembler blowing up.  This allows the assembler to support
them, implementing rdar://8456376 - llvm-mc rejects 'roundss'

llvm-svn: 115019
2010-09-29 02:57:56 +00:00
Chris Lattner ff3a3930a0 add asmparser support for cvttpd2dq by removing some Int_ prefixes.
Clean up cvttps2dq by removing some redundant implementations of the
same instruction.  rdar://8456382

llvm-svn: 115018
2010-09-29 02:36:32 +00:00
Chris Lattner ef1c2fc305 implement rdar://8456382 - cvtsd2si support, by removing some Int_ prefixes.
llvm-svn: 115017
2010-09-29 02:24:57 +00:00
Chris Lattner a63292a3ca implement rdar://8456378 and PR7557 - support for the fstsw,
an instruction that requires a WHOLE NEW wonderful kind of alias.

llvm-svn: 115015
2010-09-29 01:50:45 +00:00
Chris Lattner b44fd24fc1 change the protocol TargetAsmPArser::MatchInstruction method to take an
MCStreamer to emit into instead of an MCInst to fill in.  This allows the
matcher extra flexibility and is more convenient.

llvm-svn: 115014
2010-09-29 01:42:58 +00:00
Dale Johannesen 786874de82 MMX parameters aren't handled here yet.
llvm-svn: 114844
2010-09-27 17:29:47 +00:00
Chris Lattner b6a7f97c88 yet more aliases.
llvm-svn: 114822
2010-09-27 07:24:57 +00:00
Chris Lattner 882626cd5b add a couple more aliases, rdar://8456378
llvm-svn: 114821
2010-09-27 07:21:41 +00:00
Chris Lattner 972c60d821 fix rdar://8470918 - llvm-mc can't assemble smovl
llvm-svn: 114819
2010-09-27 07:11:53 +00:00
Chris Lattner ff0062af62 Fix rdar://8468087 - llvm-mc commutes fmul (and friend) operands.
My previous fix for rdar://8456371 should only apply to fmulp/faddp,
not to fmul/fadd.  Instruction set orthogonality is overrated or 
something.

llvm-svn: 114818
2010-09-27 07:08:21 +00:00
Chris Lattner b5b71e07af improve indentation
llvm-svn: 114815
2010-09-27 06:34:01 +00:00
Eric Christopher 422e463be7 This code should never fire on non-darwin subtargets.
llvm-svn: 114811
2010-09-27 06:01:51 +00:00
Chris Lattner 4f59cbfb66 implement support for 'clr' alias. This is part of rdar://8416805,
but balrog was wanting it on irc.

llvm-svn: 114809
2010-09-27 04:23:03 +00:00
Rafael Espindola 75d65b9a03 Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put
symbols defined in merge sections in independent atoms.

llvm-svn: 114786
2010-09-25 05:42:19 +00:00
Dale Johannesen 6a4cd59b08 We can't return SSE/MMX vectors if SSE is disabled.
llvm-svn: 114745
2010-09-24 19:05:48 +00:00
Owen Anderson 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
Owen Anderson bd57e0ce3d Add isConditionalMove bits to X86 and ARM instructions.
llvm-svn: 114703
2010-09-23 22:57:01 +00:00
Cameron Esfahani bbb9287080 Fix PR8201: Update the code to call via X86::CALL64pcrel32 in the 64-bit case.
llvm-svn: 114597
2010-09-22 22:35:21 +00:00
Eric Christopher c1b3e072f4 Temporarily work around new address lowering while I figure out what
needs to happen for darwin.

llvm-svn: 114577
2010-09-22 20:42:08 +00:00
Bob Wilson e1223fb583 Attempt to fix llvm-gcc build. It was crashing when building gcov.o for an
ARM cross-compiler on x86, because the MMO size did not match the type size.
This fixes the MMO size and also the size of the stack object to match the
type size.

llvm-svn: 114554
2010-09-22 17:35:14 +00:00
Chris Lattner 415624cf3f fix rdar://8456371 - Handle commutable instructions written backward.
llvm-svn: 114536
2010-09-22 06:26:39 +00:00
Chris Lattner bd85725341 Fix an inconsistency in the x86 backend that led it to reject "calll foo" on
x86-32: 32-bit calls were named "call" not "calll".  64-bit calls were correctly
named "callq", so this only impacted x86-32.

This fixes rdar://8456370 - llvm-mc rejects 'calll'

This also exposes that mingw/64 is generating a 32-bit call instead of a 64-bit call,
I will file a bugzilla.

llvm-svn: 114534
2010-09-22 05:49:14 +00:00
Chris Lattner 37fc469f88 fix rdar://8456412 - llvm-mc crash in encoder on "mov %rdx, %cr8"
Teaching the code generator about CR8-15, how to rex them up, etc.

llvm-svn: 114533
2010-09-22 05:29:50 +00:00
Chris Lattner 9dfd2e354e add the missing aliases for fp stack cmovs, rdar://8456391
llvm-svn: 114531
2010-09-22 04:56:20 +00:00
Chris Lattner 8a236b63d8 reimplement elf TLS support in terms of addressing modes, eliminating SegmentBaseAddress.
llvm-svn: 114529
2010-09-22 04:39:11 +00:00
Chris Lattner 1261b81e82 Fix rdar://8456364 - llvm-mc rejects '%CS'
llvm-svn: 114528
2010-09-22 04:11:10 +00:00
Chris Lattner 39cf8deded fix rdar://8456389 - llvm-mc mismatch with 'as' on 'fstp'
-This line, and those below, will be ignored--

M    test/MC/AsmParser/X86/x86_instructions.s
M    lib/Target/X86/AsmParser/X86AsmParser.cpp

llvm-svn: 114527
2010-09-22 04:04:03 +00:00
Chris Lattner a91e510f94 fix rdar://8456361 - llvm-mc rejects 'rep movsd'
llvm-svn: 114526
2010-09-22 03:50:32 +00:00
Chris Lattner a5156c30ed convert the last 4 X86ISD nodes that should have memoperands to have them.
llvm-svn: 114523
2010-09-22 01:28:21 +00:00
Chris Lattner ed85da5600 give X86ISD::FNSTCW16m a memoperand, since it touches memory. It only
can access the stack due to how it is generated though.

llvm-svn: 114522
2010-09-22 01:11:26 +00:00
Chris Lattner 78f518b79b give FP_TO_INT16_IN_MEM and friends a memoperand. They are only
used with stack slots, but hey, lets be safe.

llvm-svn: 114521
2010-09-22 01:05:16 +00:00
Chris Lattner 54e5329545 give VZEXT_LOAD a memory operand, it now works with segment registers.
llvm-svn: 114515
2010-09-22 00:34:38 +00:00
Chris Lattner 07827ba978 revert r114386 now that address modes work correctly, we get a nice
call through gs-relative memory now.

llvm-svn: 114510
2010-09-22 00:11:31 +00:00
Chris Lattner e479e9643b give LCMPXCHG_DAG[8] a memory operand, allowing it to work with addrspace 256/257
llvm-svn: 114508
2010-09-21 23:59:42 +00:00
Chris Lattner d58d7c1907 reimplement support for GS and FS relative address space matching
by having X86DAGToDAGISel::SelectAddr get passed in the parent node
of the operand match (the load/store/atomic op) and having it get
the address space from that, instead of having special FS/GS addr
mode operations that require duplicating the entire instruction set
to support.

This makes FS and GS relative accesses *far* more predictable and
work much better.  It also simplifies the X86 backend a bit, more
to come.

There is still a pending issue with nodes like ISD::PREFETCH and
X86ISD::FLD, which really should be MemSDNode's but aren't.

llvm-svn: 114491
2010-09-21 22:07:31 +00:00
Owen Anderson 5e65dfbb97 Reimplement r114460 in target-independent DAGCombine rather than target-dependent, by using
the predicate to discover the number of sign bits.  Enhance X86's target lowering to provide
a useful response to this query.

llvm-svn: 114473
2010-09-21 20:42:50 +00:00
Chris Lattner 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
Chris Lattner c6d8839a2b even though I'm about to rip it out, simplify the address mode stuff
llvm-svn: 114468
2010-09-21 19:41:58 +00:00
Chris Lattner 886250c8f0 convert a couple more places to use the new getStore()
llvm-svn: 114463
2010-09-21 18:51:21 +00:00
Owen Anderson f4b1a5bdc4 When adding the carry bit to another value on X86, exploit the fact that the carry-materialization
(sbbl x, x) sets the registers to 0 or ~0.  Combined with two's complement arithmetic, we can fold
the intermediate AND and the ADD into a single SUB.

This fixes <rdar://problem/8449754>.

llvm-svn: 114460
2010-09-21 18:41:19 +00:00
Chris Lattner 802527adad eliminate some uses of the getStore overload.
llvm-svn: 114453
2010-09-21 17:50:43 +00:00
Chris Lattner 3d178ed4d4 propagate MachinePointerInfo through various uses of the old
SelectionDAG::getExtLoad overload, and eliminate it.

llvm-svn: 114446
2010-09-21 17:04:51 +00:00
Chris Lattner 7727d05dbb convert the targets off the non-MachinePointerInfo of getLoad.
llvm-svn: 114410
2010-09-21 06:44:06 +00:00
Chris Lattner 82fd06d3ce it's more elegant to put the "getConstantPool" and
"getFixedStack" on the MachinePointerInfo class.  While
this isn't the problem I'm setting out to solve, it is the
right way to eliminate PseudoSourceValue, so lets go with it.

llvm-svn: 114406
2010-09-21 06:22:23 +00:00
Chris Lattner c3e05d6e50 update the X86 backend to use the MachinePointerInfo version of one
of the getLoad methods.  This fixes at least one bug where an incorrect
svoffset is passed in (a potential combiner-aa miscompile).

llvm-svn: 114404
2010-09-21 06:02:19 +00:00
Chris Lattner 4470c2bb23 Fix a bug where the x86 backend would lower memcpy/memset of segment relative operations
into non-segment-relative copies.

llvm-svn: 114402
2010-09-21 05:43:34 +00:00
Chris Lattner 2510de2bea reimplement memcpy/memmove/memset lowering to use MachinePointerInfo
instead of srcvalue/offset pairs.  This corrects SV info for mem 
operations whose size is > 32-bits.

llvm-svn: 114401
2010-09-21 05:40:29 +00:00
Chris Lattner e3d864b857 convert targets to the new MF.getMachineMemOperand interface.
llvm-svn: 114391
2010-09-21 04:39:43 +00:00
Chris Lattner bb0a1c44bf fix rdar://8453210, a crash handling a call through a GS relative load.
For now, just disable folding the load into the call.

llvm-svn: 114386
2010-09-21 03:37:00 +00:00
NAKAMURA Takumi ea639aa11f X86Subtarget.h: Fix Cygwin's TD.
llvm-svn: 114297
2010-09-18 19:50:42 +00:00
Dan Gohman 534db8a5c8 Avoid emitting a PIC base register if no PIC addresses are needed.
This fixes rdar://8396318.

llvm-svn: 114201
2010-09-17 20:24:24 +00:00
Chris Lattner cea0a8d7ae fix rdar://8444631 - encoder crash on 'enter'
What a weird instruction.

llvm-svn: 114190
2010-09-17 18:02:29 +00:00
Chris Lattner 74d320db97 fix rdar://8438816 - unrecognized 'fildq' instruction
llvm-svn: 114116
2010-09-16 20:46:38 +00:00
Chris Lattner ee7e6f42f8 lcall and ljmp always default to lcalll and ljmpl. This finally
wraps up r8418316

llvm-svn: 113949
2010-09-15 05:30:20 +00:00
Chris Lattner 09bfe645f6 apparently jmpl $1,$2 is an alias for ljmpl, similiarly
for call.  Add this.

llvm-svn: 113948
2010-09-15 05:25:21 +00:00
Chris Lattner 6757eae45e Disambiguate lcall/ljmp to the 32-bit version. This happens
even in 64-bit mode apparently.

llvm-svn: 113945
2010-09-15 05:14:54 +00:00
Chris Lattner 5be87c619b fix the encoding of sldt GR16 to have the 0x66 prefix, and
add sldt GR32, which isn't documented in the intel manual
but which gas accepts.  Part of rdar://8418316

llvm-svn: 113938
2010-09-15 04:45:10 +00:00
Chris Lattner 6b40b0def1 implement aliases for shld/shrd, part of rdar://8418316
llvm-svn: 113937
2010-09-15 04:37:18 +00:00
Chris Lattner 4bd21710b6 fix rdar://8431880 - rcl/rcr with no shift amount not recognized
llvm-svn: 113936
2010-09-15 04:33:27 +00:00
Chris Lattner 81ce173860 add various broken forms of fnstsw. I didn't add the %rax
version because it adds a prefix and makes even less sense
than the other broken forms.  This wraps up rdar://8431422

llvm-svn: 113932
2010-09-15 04:15:16 +00:00
Chris Lattner 7df35dbd19 add some aliases for f[u]comi, part of rdar://8431422
llvm-svn: 113930
2010-09-15 04:08:38 +00:00
Chris Lattner 4dbcba0082 add a bunch of aliases for fp operations with no operand,
rdar://8431422

llvm-svn: 113929
2010-09-15 04:04:33 +00:00
Chris Lattner d28452d94a Diagnose invalid instructions like "incl" with "too few operands for instruction"
instead of crashing.  This fixes:
rdar://8431815 - crash when invalid operand is one that isn't present

llvm-svn: 113921
2010-09-15 03:50:11 +00:00
Jim Grosbach 95ede4d3b6 trailing whitespace
llvm-svn: 113915
2010-09-15 01:01:45 +00:00
Chris Lattner 5f2311dc29 add a terrible hack to allow out with dx is parens, a gas bug.
This fixes PR8114

llvm-svn: 113894
2010-09-14 23:34:29 +00:00
Michael J. Spencer 93c9b2ea93 Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."
This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

llvm-svn: 113819
2010-09-13 23:59:48 +00:00
Dale Johannesen 1eea351920 Fix typos. 128-bit PSHUFB takes 128-bit memory op.
v8i16 is not an MMX type; put it where it belongs.

llvm-svn: 113785
2010-09-13 21:15:43 +00:00
John Thompson 1094c80281 Added skeleton for inline asm multiple alternative constraint support.
llvm-svn: 113766
2010-09-13 18:15:37 +00:00
Chris Lattner 1bbb14ab8f add a missed cmov alias, part of rdar://8416805
llvm-svn: 113693
2010-09-11 17:08:22 +00:00
Chris Lattner 3340c3e86c add support for all the setCC aliases. Part of rdar://8416805
llvm-svn: 113692
2010-09-11 17:06:05 +00:00
Chris Lattner b47c042e09 add support for pushfd/popfd which are aliases for pushfl/popfl.
This fixes rdar://8408129 - pushfd and popfd get invalid instruction mnemonic errors

llvm-svn: 113690
2010-09-11 16:39:16 +00:00
Chris Lattner 30561aba20 implement rdar://8407928 - support for in/out with a missing "a" register.
llvm-svn: 113689
2010-09-11 16:32:12 +00:00
Chris Lattner a2a9d16b78 fix the asmparser so that the target is responsible for skipping to
the end of the line on a parser error, allowing skipping to happen
for syntactic errors but not for semantic errors.  Before we would
miss emitting a diagnostic about the second line, because we skipped
it due to the semantic error on the first line:

  foo %eax
  bar %al

This fixes rdar://8414033 - llvm-mc ignores lines after an invalid instruction mnemonic errors

llvm-svn: 113688
2010-09-11 16:18:25 +00:00
Michael J. Spencer dc38d36ccb CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.
llvm-svn: 113632
2010-09-10 21:14:25 +00:00
Bill Wendling 798725b24d Reapply r113585. The msvc machine is mercurial.
llvm-svn: 113610
2010-09-10 20:20:28 +00:00
Bill Wendling a9c9aaa839 r113585 was causing clang-i686-xp-msvc9 to fail in mysterious ways that I can't
understand (the log file was no help).

llvm-svn: 113605
2010-09-10 19:20:47 +00:00
Bill Wendling 638a098f72 Mark the sse_load_f32 and sse_load_f64 load patterns as having memoperands so
that the memoperands are properly set after DAG building and general mucking
about.

llvm-svn: 113585
2010-09-10 10:34:22 +00:00
Bruno Cardoso Lopes e8501a468c Add one more pattern to fallback movddup
llvm-svn: 113522
2010-09-09 18:48:34 +00:00
Roman Divacky 3b727f55aa Make ELF OS ABI dependent on the OS from target triple.
llvm-svn: 113508
2010-09-09 17:57:50 +00:00
Dale Johannesen 0ec303b97b Move remaining MMX instructions from SSE to MMX.
llvm-svn: 113501
2010-09-09 17:13:07 +00:00
Dale Johannesen 5f4a6f295c Move most MMX instructions (defined as anything that
uses MMX, even if it also uses other things) from InstrSSE
into InstrMMX.  No (intended) functional change.

llvm-svn: 113462
2010-09-09 01:02:39 +00:00
Chris Lattner 28a9c2f89a fix rdar://8407548, I missed the commuted form of xchg/test without a suffix.
llvm-svn: 113427
2010-09-08 22:27:05 +00:00
Chris Lattner d7aba234c2 fix wonky formatting.
llvm-svn: 113426
2010-09-08 22:22:10 +00:00
Chris Lattner 8ead237758 fix bugs in push/pop segment support, rdar://8407242
llvm-svn: 113422
2010-09-08 22:13:08 +00:00
Dale Johannesen 0d2e6ad504 Add intrinsic-based patterns for MMX PINSRW and PEXTRW.
llvm-svn: 113420
2010-09-08 22:08:40 +00:00
Dale Johannesen e54dba94f9 Check in forgotten file. Should fix build.
llvm-svn: 113409
2010-09-08 21:09:48 +00:00
Dale Johannesen 4dae01781f Slight cleanup, use only one form of MMXI_binop_rm_int.
llvm-svn: 113406
2010-09-08 20:54:00 +00:00
Dale Johannesen d79bb127dd Add intrinsic forms of mmx<->sse conversions. Notes:
Omission of memory form of PI2PD is intentional; this
does not use an MMX register and does not put the chip
into MMX mode (PI2PS, oddly enough, does).
Operands of PI2PS follow the gcc builtin, not Intel.

llvm-svn: 113388
2010-09-08 19:15:38 +00:00
Bruno Cardoso Lopes 99a9f4661a Minor change. Fix comments and remove unused and redundant code
llvm-svn: 113378
2010-09-08 18:12:31 +00:00
Bruno Cardoso Lopes f7fee1c185 x86 vector shuffle lowering now relies only on target specific
nodes to emit shuffles and don't do isel mask matching anymore.
- Add the selection of the remaining shuffle opcode (movddup)
- Introduce two new functions to "recognize" where we may get
potential folds and add several comments to them explaining why
they are not yet in the desidered shape.
- Add more patterns to fallback the case where we select
a specific shuffle opcode as if it could fold a load, but it
can't, so remap to a valid instruction.
- Add a couple of FIXMEs to address in the following days once
there's a good solution to the current folding problem.

llvm-svn: 113369
2010-09-08 17:43:25 +00:00
Chris Lattner 2907d2e419 add support for the commuted form of the test instruction, rdar://8018260.
llvm-svn: 113352
2010-09-08 05:51:12 +00:00
Chris Lattner a9ca7837e4 implement proper support for sysret{,l,q}, rdar://8403907
llvm-svn: 113350
2010-09-08 05:45:34 +00:00
Chris Lattner 063363fa80 implement the iret suite of instructions properly,
fixing rdar://8403974

llvm-svn: 113349
2010-09-08 05:38:31 +00:00
Chris Lattner 086a83afb1 add support for instruction prefixes on the same line as the instruction,
implementing rdar://8033482 and PR7254.

llvm-svn: 113348
2010-09-08 05:17:37 +00:00
Chris Lattner 91689c1d0f change the MC "ParseInstruction" interface to make it the
implementation's job to check for and lex the EndOfStatement
marker.

llvm-svn: 113347
2010-09-08 05:10:46 +00:00
Chris Lattner 8caea68a4f gas accepts xchg <mem>, <reg> as a synonym for xchg <reg>, <mem>.
Add this to the mc assembler, fixing PR8061

llvm-svn: 113346
2010-09-08 04:53:27 +00:00
Chris Lattner 4703cb4a96 fix the encoding of the "jump on *cx" family of instructions,
rdar://8061602

llvm-svn: 113343
2010-09-08 04:30:51 +00:00
Bruno Cardoso Lopes 6b1d62c529 Factor out some x86 vector shuffle rewriting and add comments about the direction the shuffle lowering is heading to
llvm-svn: 113286
2010-09-07 21:03:14 +00:00
Bruno Cardoso Lopes 7c483028fb Move code around to prepare for moving some of the logic together to another function
llvm-svn: 113267
2010-09-07 20:20:27 +00:00
Bill Wendling 353802114f Add an MVT::x86mmx type. It will take the place of all current MMX vector types.
llvm-svn: 113261
2010-09-07 20:03:56 +00:00
Evan Cheng 5444b36e01 Remove a dead comment.
llvm-svn: 113259
2010-09-07 20:01:10 +00:00
Bruno Cardoso Lopes 5a45db3e6c decouple MMX check from regular splat checks. Some refactoring is coming, and MMX should be left alone to be easily removed after moving to intrinsics
llvm-svn: 113247
2010-09-07 18:41:45 +00:00
Bruno Cardoso Lopes 4f5d4b4a6e Remove now useless check, because the code can be matched below, no need to leave it for isel
llvm-svn: 113242
2010-09-07 18:29:03 +00:00
Bruno Cardoso Lopes c9b3316fea Minor change. Since the checks are equivalent, use isMMX
llvm-svn: 113239
2010-09-07 18:24:00 +00:00
Dale Johannesen 605acfe533 Add patterns for MMX that use the new intrinsics.
Enable palignr intrinsic.
These may need adjustment for a new VT in due course.

llvm-svn: 113233
2010-09-07 18:10:56 +00:00
Bruno Cardoso Lopes f0ea222255 Remove unused target specific node
llvm-svn: 113224
2010-09-07 17:38:55 +00:00
Benjamin Kramer 1ecb978214 Don't leak the old operand when transforming "sldt" into "sldtw".
llvm-svn: 113200
2010-09-07 14:40:58 +00:00
Chris Lattner 30bb384944 add missing cmov aliases, this resolves rdar://8208499
llvm-svn: 113189
2010-09-07 00:05:45 +00:00
Chris Lattner 3ae9398d5f remove duplicated entry
llvm-svn: 113188
2010-09-06 23:57:24 +00:00
Chris Lattner 7ece716da2 "sldt <mem>" is ambiguous in 64-bit mode, but should
always be disambiguated as sldtw.  sldtw and sldtq with
a mem operands have the same effect, but sldtw is more
compact.  Force it to sldtw, resolving rdar://8017530

llvm-svn: 113186
2010-09-06 23:51:44 +00:00
Chris Lattner 415e04fad2 fix rdar://8017621 - llvm-mc can't guess encoding for "push $(1000)"
llvm-svn: 113184
2010-09-06 23:40:56 +00:00
Chris Lattner 34e366b45c fix the operand constraints of the immediate form of in/out,
allowing unsigned 8-bit operands.  This fixes rdar://8208481

llvm-svn: 113182
2010-09-06 23:29:05 +00:00
Chris Lattner 339cc7bfef in the case where an instruction only has one implementation
of a mneumonic, report operand errors with better location
info.  For example, we now report:

t.s:6:14: error: invalid operand for instruction
        cwtl $1
             ^

but we fail for common cases like:

t.s:11:4: error: invalid operand for instruction
   addl $1, $1
   ^

because we don't know if this is supposed to be the reg/imm or imm/reg
form.

llvm-svn: 113178
2010-09-06 22:11:18 +00:00
Chris Lattner 628fbecf4f Now that we know if we had a total fail on the instruction mnemonic,
give a more detailed error.  Before:

t.s:11:4: error: unrecognized instruction
   addl $1, $1
   ^
t.s:12:4: error: unrecognized instruction
   f2efqefa $1
   ^

After:

t.s:11:4: error: invalid operand for instruction
   addl $1, $1
   ^
t.s:12:4: error: invalid instruction mnemonic 'f2efqefa'
   f2efqefa $1
   ^

This fixes rdar://8017912 - llvm-mc says "unrecognized instruction" when it means "invalid operands"

llvm-svn: 113176
2010-09-06 21:54:15 +00:00
Chris Lattner 31c63fb518 simplify the hacks around jrcxz.
llvm-svn: 113167
2010-09-06 20:10:12 +00:00
Chris Lattner b4be28f33d have tblgen detect when an instruction would have matched, but
failed because a subtarget feature was not enabled.  Use this to
remove a bunch of hacks from the X86AsmParser for rejecting things
like popfl in 64-bit mode.  Previously these hacks weren't needed,
but were important to get a message better than "invalid instruction"
when used in the wrong mode.

This also fixes bugs where pushal would not be rejected correctly in
32-bit mode (just pusha).

llvm-svn: 113166
2010-09-06 20:08:02 +00:00
Chris Lattner a22a368e7c change MatchInstructionImpl to return an enum instead of bool.
llvm-svn: 113165
2010-09-06 19:22:17 +00:00