maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
78,045 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

13094 Commits

Author SHA1 Message Date
Daniel Dunbar 224340cabe MC/X86: Push immediate operands as immediates not expressions when possible. 
llvm-svn: 96055
 2010-02-13 00:17:21 +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
Dale Johannesen 626b79d6a6 Add the problem I just hacked around in 96015/96020. 
The solution there produces correct code, but is seriously
deficient in several ways.

llvm-svn: 96039
 2010-02-12 23:16:24 +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
Johnny Chen 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
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 12455ca03d enhance the immediate field encoding to know whether the immediate 
is pc relative or not, mark call and branches as pcrel.

llvm-svn: 96026
 2010-02-12 22:27:07 +00:00
Evan Cheng 439bda9d3f Load / store multiple instructions cannot load / store sp. Sorry, can't come up with a reasonable test case. 
llvm-svn: 96023
 2010-02-12 22:17:21 +00:00
Dale Johannesen cb39340b81 This should have gone in with 26015, see comments there. 
llvm-svn: 96020
 2010-02-12 22:00:40 +00:00
Johnny Chen dc2051c802 Add halfword multiply accumulate long SMLALBB/BT/TB/TT for disassembly only. 
llvm-svn: 96019
 2010-02-12 21:59:23 +00:00
Dale Johannesen 26062150fa When save/restoring CR at prolog/epilog, in a large 
stack frame, the prolog/epilog code was using the same
register for the copy of CR and the address of the save slot.  Oops.
This is fixed here for Darwin, sort of, by reserving R2 for this case.
A better way would be to do the store before the decrement of SP,
which is safe on Darwin due to the red zone.

SVR4 probably has the same problem, but I don't know how to fix it;
there is no red zone and R2 is already used for something else.
I'm going to leave it to someone interested in that target.

Better still would be to rewrite the CR-saving code completely;
spilling each CR subregister individually is horrible code.

llvm-svn: 96015
 2010-02-12 21:35:34 +00:00
Chris Lattner 392be58cad Add support for a union type in LLVM IR. Patch by Talin! 
llvm-svn: 96011
 2010-02-12 20:49:41 +00:00
Johnny Chen bdf1b9520c Add SWP (Swap) and SWPB (Swap Byte) for disassembly only. 
llvm-svn: 96010
 2010-02-12 20:48:24 +00:00
Johnny Chen cf20cbec49 Add CPS, MRS, MRSsys, MSR, MSRsys for disassembly only. 
llvm-svn: 95999
 2010-02-12 18:55:33 +00:00
Anton Korobeynikov c3c357006e Setup correct data layout to match gcc's expectations on mingw32. 
llvm-svn: 95981
 2010-02-12 15:28:56 +00:00
Anton Korobeynikov c9276dfe04 Cleanup stdcall / fastcall name mangling. 
This should fix alot of problems we saw so far, e.g. PRs 5851 & 2936

llvm-svn: 95980
 2010-02-12 15:28:40 +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 44ac89f517 revert r95949, it turns out that adding new prefixes is not a 
great solution for the disassembler, we'll go with "plan b".

llvm-svn: 95957
 2010-02-12 01:55:31 +00:00
Johnny Chen 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
Daniel Dunbar d7e9212e2d X86: Fix definition for RCL/RCR.*m? operations -- they were getting represented 
with "tied memory operands", which is wrong.

llvm-svn: 95950
 2010-02-12 01:22:03 +00:00
Chris Lattner 336f9abb45 add another bit of space for new kinds of instruction prefixes. 
llvm-svn: 95949
 2010-02-12 01:15:16 +00:00
Nate Begeman c780af6471 Add a missing pattern for movhps so that we get: 
movq	(%ecx,%edx,2), %xmm2
movhps	(%ecx,%eax,2), %xmm2

rather than:

movq     (%eax, %edx, 2), %xmm2		
movq     (%eax, %ebx, 2), %xmm3		
movlhps  %xmm3, %xmm2			

Testcase forthcoming.

llvm-svn: 95948
 2010-02-12 01:10:45 +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 b1913c4df9 enhance llvm-mc -show-inst to print the enum of an instruction, like so: 
testb	%al, %al                ## <MCInst #2412 TEST8rr
                                        ##   <MCOperand Reg:2>
                                        ##   <MCOperand Reg:2>>
	jne	LBB1_7                  ## <MCInst #938 JNE_1
                                        ##   <MCOperand Expr:(LBB1_7)>>

llvm-svn: 95935
 2010-02-11 22:57:32 +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 b8af65ed0b improve encoding information for branches. We now know they have 
8 or 32-bit immediates, which allows the new encoder to handle
them.

llvm-svn: 95927
 2010-02-11 21:45:31 +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
Johnny Chen af88c0a84d Added LDRT/LDRBT/STRT/STRBT for disassembly only. 
llvm-svn: 95916
 2010-02-11 20:31:08 +00:00
Chris Lattner 1f298326b0 unbreak the build. 
llvm-svn: 95915
 2010-02-11 19:52:11 +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
Johnny Chen 3964059a16 Forgot to also check in this file for vcvt (floating-point <-> fixed-point, VFP). 
Sorry!

llvm-svn: 95892
 2010-02-11 18:47:03 +00:00
Johnny Chen 2588efd071 Added VCVT (between floating-point and fixed-point, VFP) for disassembly. 
A8.6.297

llvm-svn: 95885
 2010-02-11 18:17:16 +00:00
Johnny Chen f40b8e03fb Added BKPT/tBKPT (breakpoint) to the instruction table for disassembly purpose. 
llvm-svn: 95884
 2010-02-11 18:12:29 +00:00
Johnny Chen 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
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
Mon P Wang 5b77f0dac1 The previous fix of widening divides that trap was too fragile as it depends on custom 
lowering and requires that certain types exist in ValueTypes.h.  Modified widening to
check if an op can trap and if so, the widening algorithm will apply only the op on
the defined elements.  It is safer to do this in widening because the optimizer can't
guarantee removing unused ops in some cases.

llvm-svn: 95823
 2010-02-10 23:37:45 +00:00
Eli Friedman 4d4c6944e9 A few missed optimizations; the last one could have a significant impact on 
code with lots of bitfields.

llvm-svn: 95809
 2010-02-10 21:26:04 +00:00
Daniel Dunbar 3e0c9790f2 MC/X86 AsmMatcher: Fix a use after free spotted by d0k, and de-XFAIL 
x86_32-encoding.s in on expectation of it passing.

llvm-svn: 95806
 2010-02-10 21:19:28 +00:00
Johnny Chen c7e14704d0 Added NOP, DBG, SVC to the instruction table for disassembly purpose. 
llvm-svn: 95784
 2010-02-10 18:02:25 +00:00
Dan Gohman 4a618827de Fix "the the" and similar typos. 
llvm-svn: 95781
 2010-02-10 16:03:48 +00:00