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47 Commits

Author SHA1 Message Date
Daniel Dunbar eaa367f5ae MCCodeEmitter: Add target independent fixup flag for is-pc-relative. 
llvm-svn: 98954
 2010-03-19 10:43:23 +00:00
Daniel Dunbar 2ca1108254 X86MCCodeEmitter: Fix two minor issues with reloc_riprel_4byte_movq_load, we 
were missing it on some movq instructions and were not including the appropriate
PCrel bias.

llvm-svn: 98880
 2010-03-18 21:53:54 +00:00
Chris Lattner b3f659c8c8 fix an x86-64 encoding bug Daniel found. 
llvm-svn: 98855
 2010-03-18 20:04:36 +00:00
Chris Lattner a3a66b28b6 add a special relocation type for movq loads for object 
files that produce special relocation types where the 
linker changes movq's into lea's.

llvm-svn: 98839
 2010-03-18 18:10:56 +00:00
Chris Lattner 4964ef88c2 make pcrel immediate values relative to the start of the field, 
not the end of the field, fixing rdar://7651978

llvm-svn: 96330
 2010-02-16 05:03:17 +00:00
Chris Lattner 406cd61828 teach the encoder to handle pseudo instructions like FP_REG_KILL, 
encoding them into nothing.

llvm-svn: 96110
 2010-02-13 19:16:53 +00:00
Daniel Dunbar 2610a34b15 X86: Move extended MCFixupKinds into X86FixupKinds.h 
llvm-svn: 96088
 2010-02-13 09:27:52 +00:00
Chris Lattner f83726f6ba add encoder support and tests for rdtscp 
llvm-svn: 96076
 2010-02-13 03:42:24 +00:00
Chris Lattner 140caa7240 remove special cases for vmlaunch, vmresume, vmxoff, and swapgs 
fix swapgs to be spelled right.

llvm-svn: 96058
 2010-02-13 00:41:14 +00:00
Chris Lattner 064e926362 Remove special cases for [LM]FENCE, MONITOR and MWAIT from 
encoder and decoder by using new MRM_ forms.

llvm-svn: 96048
 2010-02-12 23:54:57 +00:00
Chris Lattner 1e827fd8ca implement the rest of correct x86-64 encoder support for 
rip-relative addresses, and add a testcase.

llvm-svn: 96040
 2010-02-12 23:24:09 +00:00
Chris Lattner 741580a5bd give MCCodeEmitters access to the current MCContext. 
llvm-svn: 96038
 2010-02-12 23:12:47 +00:00
Chris Lattner 4ad96055fb implement infrastructure to support fixups for rip-rel 
addressing.  This isn't complete because I need an MCContext
to generate new MCExprs.

llvm-svn: 96036
 2010-02-12 23:00:36 +00:00
Chris Lattner d18320361f pull the rip-relative addressing mode case up early. 
llvm-svn: 96031
 2010-02-12 22:47:55 +00:00
Chris Lattner 6c1c0141be fixme resolved! 
llvm-svn: 96029
 2010-02-12 22:39:06 +00:00
Chris Lattner 0055e75249 start producing reloc_pcrel_4byte/reloc_pcrel_1byte for calls. 
llvm-svn: 96028
 2010-02-12 22:36:47 +00:00
Chris Lattner f7477e599f add a bunch of mod/rm encoding types for fixed mod/rm bytes. 
This will work better for the disassembler for modeling things
like lfence/monitor/vmcall etc.

llvm-svn: 95960
 2010-02-12 02:06:33 +00:00
Chris Lattner 1572e760bc fix the encodings of monitor and mwait, which were completely 
busted in both encoders.  I'm not bothering to fix it in the
old one at this point.

llvm-svn: 95947
 2010-02-12 01:06:22 +00:00
Chris Lattner 524138176d add a new MCInstPrinter::getOpcodeName interface, when it is 
implemented, llvm-mc --show-inst now uses it to print the
instruction opcode as well as the number.

llvm-svn: 95929
 2010-02-11 22:39:10 +00:00
Chris Lattner ddeceae839 make getFixupKindInfo return a const reference, allowing 
the tables to be const.  Teach MCCodeEmitter to handle
the target-indep kinds so that we don't crash on them.

llvm-svn: 95924
 2010-02-11 21:27:18 +00:00
Chris Lattner 2a34015abc switch to target-indep fixups for 1/2/4/8 byte data. 
llvm-svn: 95920
 2010-02-11 21:17:54 +00:00
Chris Lattner 2b0a7a2592 refactor the conditional jump instructions in the .td file to 
use a multipattern that generates both the 1-byte and 4-byte 
versions from the same defm

llvm-svn: 95901
 2010-02-11 19:25:55 +00:00
Chris Lattner fbf1f02fee dont' call getX86RegNum on X86::RIP, it doesn't like that. This 
fixes the remaining x86-64 jit failures afaik.

llvm-svn: 95867
 2010-02-11 08:45:56 +00:00
Chris Lattner 5a4ec879bf fix a really nasty bug I introduced in r95693: r12 (and r12d, 
r12b, etc) also encodes to a R/M value of 4, which is just
as illegal as ESP/RSP for the non-sib version an address.

This fixes x86-64 jit miscompilations of a bunch of programs.

llvm-svn: 95866
 2010-02-11 08:41:21 +00:00
Chris Lattner 6bb2463f85 Add and commonize encoder support for all immediates. 
Stub out some dummy fixups to make things work.

We can now emit fixups like this:
	subl	$20, %esp               ## encoding: [0x83,0xec,A]
                                        ##   fixup A - offset: 2, value: 20, kind: fixup_1byte_imm

Emitting $20 as a single-byte fixup to be later resolved
by the assembler is ridiculous of course (vs just emitting
the byte) but this is a failure of the matcher, which 
should be producing an imm of 20, not an MCExpr of 20.

llvm-svn: 95860
 2010-02-11 07:06:31 +00:00
Chris Lattner 167842f90b generalize EmitDisplacementField to work with any size 
and rename it to EmitImmediate.

llvm-svn: 95859
 2010-02-11 06:54:23 +00:00
Chris Lattner 3555993312 eliminate the dead IsPCRel argument. 
llvm-svn: 95858
 2010-02-11 06:51:36 +00:00
Chris Lattner 5a40e6c95c eliminate the dead "PCAdj" logic. 
llvm-svn: 95857
 2010-02-11 06:49:52 +00:00
Chris Lattner de03bd0ab4 emit some simple (and probably incorrect) fixups for symbolic 
displacement values.

llvm-svn: 95773
 2010-02-10 06:52:12 +00:00
Chris Lattner f58d0074d7 keep track of what the current byte being emitted is 
throughout the X86 encoder.

llvm-svn: 95771
 2010-02-10 06:41:02 +00:00
Chris Lattner a725d785a9 simplify displacement handling, emit displacements by-operand 
even for the immediate case.  No functionality change.

llvm-svn: 95770
 2010-02-10 06:30:00 +00:00
Daniel Dunbar b311a6b3ae MC: First cut at MCFixup, for getting fixup/relocation information out of an MCCodeEmitter. 
llvm-svn: 95708
 2010-02-09 22:59:55 +00:00
Chris Lattner 8aef06f8eb port encoder enhancements over to the new encoder. 
llvm-svn: 95699
 2010-02-09 21:57:34 +00:00
Chris Lattner a60af09414 add note. 
llvm-svn: 95445
 2010-02-05 22:48:33 +00:00
Chris Lattner 58827ff98e port X86InstrInfo::determineREX over to the new encoder. 
llvm-svn: 95440
 2010-02-05 22:10:22 +00:00
Chris Lattner 9c9453e582 wire up 64-bit MCCodeEmitter. 
llvm-svn: 95438
 2010-02-05 21:51:35 +00:00
Chris Lattner 86bd194234 really kill off the last MRMInitReg inst, remove logic from encoder. 
llvm-svn: 95437
 2010-02-05 21:34:18 +00:00
Chris Lattner 89f7dfff21 implement the rest of the encoding types. 
llvm-svn: 95414
 2010-02-05 19:37:31 +00:00
Chris Lattner 503243559a move functions for decoding X86II values into the X86II namespace. 
llvm-svn: 95410
 2010-02-05 19:24:13 +00:00
Chris Lattner b8d375fd21 change getSizeOfImm and getBaseOpcodeFor to just take 
TSFlags directly instead of a TargetInstrDesc.

llvm-svn: 95405
 2010-02-05 19:16:26 +00:00
Chris Lattner 37166eb419 add some more encodings. 
llvm-svn: 95403
 2010-02-05 19:04:37 +00:00
Chris Lattner df84b1aa50 implement the non-relocation forms of memory operands 
llvm-svn: 95368
 2010-02-05 06:16:07 +00:00
Chris Lattner 610c84a7c2 start adding MRMDestMem, which requires memory form mod/rm encoding 
to start limping.

llvm-svn: 95350
 2010-02-05 02:18:40 +00:00
Chris Lattner 4f627ba89f Add a few more encodings, we can now encode all of: 
pushl	%ebp
	movl	%esp, %ebp
	movl	$42, %eax
	popl	%ebp
	ret

llvm-svn: 95344
 2010-02-05 01:53:19 +00:00
Chris Lattner 223084d3ac enhance new encoder to support prefixes + RawFrm 
instructions with no operands.  It can now handle

define void @test2() nounwind { ret void }

llvm-svn: 95261
 2010-02-03 21:57:59 +00:00
Chris Lattner 6794f9b9f6 set up some infrastructure, some minor cleanups. 
llvm-svn: 95260
 2010-02-03 21:43:43 +00:00
Chris Lattner f914be06d2 stub out a new X86 encoder, which can be tried with 
-enable-new-x86-encoder until its stable.

llvm-svn: 95256
 2010-02-03 21:24:49 +00:00