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143 Commits

Author SHA1 Message Date
Daniel Dunbar 5c5228a8f6 MC/Mach-O: Implement "absolutizing" semantics of .set, by evaluating the assembly time value of variables. 
llvm-svn: 98241
 2010-03-11 05:53:37 +00:00
Daniel Dunbar 27b984ac85 MC/Mach-O: Use the SECTDIFF relocation type for (A - B + constant) where A is external. 
- I'm not sure why, but this is what 'as' does.

llvm-svn: 98115
 2010-03-10 00:58:25 +00:00
Daniel Dunbar b70c2f795e MC/X86: Rename alternate spellings of ADD{8,16,32} and mark as "code gen only" so they don't get selected by the asm matcher. 
llvm-svn: 98098
 2010-03-09 22:50:46 +00:00
Daniel Dunbar f5b6a1118d MC/X86: Rename alternate spellings of CMP{8,16,32} and mark as "code gen only" so they don't get selected by the asm matcher. 
llvm-svn: 98097
 2010-03-09 22:50:40 +00:00
Daniel Dunbar 3dde457b94 MC/Mach-O: For PCrel relocations, we need to compensate for the PCrel adjustment when determining if we need a scattered relocation. 
llvm-svn: 98082
 2010-03-09 21:27:58 +00:00
Kevin Enderby d2030e38a6 Fix the vmxon entry in the X86InstrInfo.td so it has the correct prefix bytes 
for the encoding and is not the same as vmptrld.

llvm-svn: 97992
 2010-03-08 22:17:26 +00:00
Daniel Dunbar 3a3f472cb4 MC/Macho-O: Align the zerofill section itself to the maximum alignment. 
llvm-svn: 97991
 2010-03-08 22:03:42 +00:00
Daniel Dunbar 6622fe7873 MC/Mach-O: Fix address compution for zero fill sections. 
llvm-svn: 97984
 2010-03-08 21:10:42 +00:00
Daniel Dunbar b59f7734b9 X86: Fix encoding for TEST{8,16,32}rr. 
llvm-svn: 97982
 2010-03-08 21:10:36 +00:00
Kevin Enderby 7f99302dc9 This is a patch to the assembler frontend to detect when aligning a text 
section with TextAlignFillValue and calls EmitCodeAlignment() instead of
calling EmitValueToAlignment().  This allows x86 assembly code to be aligned
with optimal nops.

llvm-svn: 97158
 2010-02-25 18:46:04 +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 f83726f6ba add encoder support and tests for rdtscp 
llvm-svn: 96076
 2010-02-13 03:42:24 +00:00
Daniel Dunbar d0c6d361fe MC/AsmParser: Attempt to constant fold expressions up-front. This ensures we avoid fixups for obvious cases like '-(16)'. 
llvm-svn: 96064
 2010-02-13 01:28:07 +00:00
Chris Lattner 509154e0f9 rip out the 'heinous' x86 MCCodeEmitter implementation. 
We still have the templated X86 JIT emitter, *and* the
almost-copy in X86InstrInfo for getting instruction sizes.

llvm-svn: 96059
 2010-02-13 00:49:29 +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
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 34749d879d add some disassemble testcases for weird instructions 
llvm-svn: 96045
 2010-02-12 23:46:48 +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 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
Kevin Enderby 37993197bf Remove the few # TAILCALL comments that snuck in. As they may fail on linux. 
llvm-svn: 95827
 2010-02-11 00:18:12 +00:00
Kevin Enderby cfd0e5a15e Update the X86 assembler matcher test case now that a few more things match 
with some of the recent changes that have gone into llvm-mc.

llvm-svn: 95826
 2010-02-11 00:13:43 +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
Daniel Dunbar df11958895 XFAIL this on linux until I figure out what is happening. 
llvm-svn: 95804
 2010-02-10 21:01:04 +00:00
Kevin Enderby cc152d6159 Replace this file containing 4 tests of x86 32-bit encodings with a file 
containing the subset of the full auto generated test case that currently
encodes correctly.  Again it is useful as we bring up the the new encoder
to make sure currently working stuff stays working.

llvm-svn: 95791
 2010-02-10 19:13:56 +00:00
Kevin Enderby a7c1d6cfd1 Fix the encoding of the movntdqa X86 instruction. It was missing the 0x66 
prefix which is part of the opcode encoding.

llvm-svn: 95729
 2010-02-10 00:10:31 +00:00
Chris Lattner 0c3b66cd87 fix X86 encoder to output [disp] only addresses with no SIB byte 
in X86-32 mode.  This is still required in x86-64 mode to avoid
forming [disp+rip] encoding.  Rewrite the SIB byte decision logic
to be actually understandable.

llvm-svn: 95693
 2010-02-09 21:47:19 +00:00
Chris Lattner d00faaa9c7 Implement x86 asm parsing support for %st and %st(4) 
llvm-svn: 95634
 2010-02-09 00:49:22 +00:00
Chris Lattner 9d624778a3 fix incorrect encoding of SBB8mi that Kevin noticed. 
llvm-svn: 95448
 2010-02-05 22:56:11 +00:00
Chris Lattner d91f302a05 fix a case where we'd mis-encode fisttp because of an incorrect (and 
redundant with a correct one) pattern that was added for the disassembler.

llvm-svn: 95446
 2010-02-05 22:49:06 +00:00
Chris Lattner d2e879a012 remove fixme 
llvm-svn: 95444
 2010-02-05 22:46:46 +00:00
Kevin Enderby 00f1e6c030 Added support for X86 instruction prefixes so llvm-mc can assemble them. The 
Lock prefix, Repeat string operation prefixes and the Segment override prefixes.
Also added versions of the move string and store string instructions without the
repeat prefixes to X86InstrInfo.td. And finally marked the rep versions of
move/store string records in X86InstrInfo.td as isCodeGenOnly = 1 so tblgen is
happy building the disassembler files.

llvm-svn: 95252
 2010-02-03 21:04:42 +00:00
Daniel Dunbar bdbffbedf0 AsmParser/X86: Add temporary hack to allow parsing "sal". Eventually we need 
some mechanism for specifying alternative syntaxes, but I'm not sure what form
that should take yet.

llvm-svn: 95158
 2010-02-02 23:46:47 +00:00
Chris Lattner 73051044fd remove the # TAILCALL markers, which was causing the to fail. 
It's unclear if the matcher is nondeterminstic of what here,
but I'm getting matches without TAILCALL and some other hosts
are getting matches with it.

llvm-svn: 95149
 2010-02-02 22:36:29 +00:00
Daniel Dunbar 09d81caa12 MCAssembler/Darwin: Add a test (on Darwin) that we assemble a bunch of 
instructions exactly like 'as', and produce equivalent .o files.

llvm-svn: 95143
 2010-02-02 22:00:15 +00:00
Daniel Dunbar 255a8c8b13 MC/Mach-O: Set SOME_INSTRUCTIONS bit for sections. 
llvm-svn: 95135
 2010-02-02 21:44:01 +00:00
Chris Lattner de9b3ada5d this apparently depends on the host somehow. 
llvm-svn: 95122
 2010-02-02 20:57:28 +00:00
Chris Lattner 2481509162 disable this test for now. 
llvm-svn: 95120
 2010-02-02 20:41:39 +00:00
Kevin Enderby db32c4567b Added another version of the X86 assembler matcher test case. 
This test case is different subset of the full auto generated test case, and a
larger subset that is in x86_32-bit.s (that set will encode correctly).  These
instructions can pass though llvm-mc as it were a logical cat(1) and then
reassemble to the same instruction.  It is useful as we bring up the parser and
matcher so we don't break things that currently work.

llvm-svn: 95107
 2010-02-02 19:05:57 +00:00
Daniel Dunbar 76e5d70c57 MC/X86 AsmParser: Handle absolute memory operands correctly. We were doing 
something totally broken and parsing them as immediates, but the .td file also
had the wrong match class so things sortof worked. Except, that is, that we
would parse
  movl $0, %eax
as
  movl 0, %eax
Feel free to guess how well that worked.

llvm-svn: 94869
 2010-01-30 01:02:48 +00:00
Daniel Dunbar 7f0421eebb MC/X86: Add a nice X86 assembler matcher test case from Kevin Enderby. 
- This test case is auto generated, and has been verified to round-trip
   correctly through llvm-mc by checking the assembled .o file before and after
   piping through llvm-mc. It will be extended over time as the matcher grows
   support for more instructions.

llvm-svn: 94857
 2010-01-29 23:32:40 +00:00
Chris Lattner d45adf28de wirte up .file and .file to the mc asmparser. 
llvm-svn: 94438
 2010-01-25 19:02:58 +00:00
Chris Lattner 807a3bcbbb fix a parsing problem on instructions like: 
movw	$8, (_cost_table_-L97$pb)+66(%eax)

After the parens, we could still have a binop.

llvm-svn: 94345
 2010-01-24 01:07:33 +00:00
Chris Lattner ded9af63bb teach MCAsmStreamer::EmitBytes to use .ascii and .asciz 
llvm-svn: 94259
 2010-01-23 00:15:00 +00:00
Daniel Dunbar 862023fcb2 Mark EH_RETURN64 as CodeGenOnly. 
llvm-svn: 94205
 2010-01-22 20:16:37 +00:00
Chris Lattner 4340cb3246 add an MCAsmStreamer::EmitFill specialization of EmitFill that 
emits one directive instead of N.  Not doing this would be a
significant regression on the # bytes generated by .fill.

llvm-svn: 93889
 2010-01-19 18:52:28 +00:00
Chris Lattner 795bfb7207 only darwin has zerofill 
llvm-svn: 93866
 2010-01-19 06:21:23 +00:00
Chris Lattner f6d4129c76 specify a triple to use, fixing the test on non-x86-64 hosts. 
llvm-svn: 91900
 2009-12-22 07:01:12 +00:00
Chris Lattner dd0c01b5de various cleanups, make the disassemble reject lines with too much 
data on them, for example:

	addb	%al, (%rax)
simple-tests.txt:11:5: error: excess data detected in input
0 0 0 0 0 
    ^

llvm-svn: 91896
 2009-12-22 06:56:51 +00:00
Chris Lattner dc9845b79a rewrite the file parser for the disassembler, implementing support for 
comments.  Also, check in a simple testcase for the disassembler,
including a test for r91864

llvm-svn: 91894
 2009-12-22 06:37:58 +00:00
Daniel Dunbar 6a19c14968 Force triple in tests. 
llvm-svn: 84257
 2009-10-16 16:30:02 +00:00