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Author SHA1 Message Date
Dan Gohman
fd8f55bc9e Minor code simplification. 
llvm-svn: 95780
 2010-02-10 15:54:22 +00:00
Benjamin Kramer
0a0f0f6465 Silence GCC warnings. 
llvm-svn: 95779
 2010-02-10 13:34:02 +00:00
Daniel Dunbar
59cb3a1ca4 MC/AsmMatcher: Add support for creating tied operands when constructing MCInsts. 
- Pretty messy, but we need to rework how we handle tied operands in MCInst
   anyway.

llvm-svn: 95774
 2010-02-10 08:15:48 +00:00
Chris Lattner
72dfdc8b8a emit some simple (and probably incorrect) fixups for symbolic 
displacement values.

llvm-svn: 95773
 2010-02-10 06:52:12 +00:00
Chris Lattner
6abaa9ee3c 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
aa22470a1a 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
Dan Gohman
ff8027e33a Canonicalize sizeof and alignof on pointer types to a canonical 
pointer type.

llvm-svn: 95769
 2010-02-10 06:13:07 +00:00
Dan Gohman
2dd0d36f14 Implement operators |=, &=, and ^= for SmallBitVector, and remove the 
restriction in BitVector for |= and ^= that the operand must be the
same length.

llvm-svn: 95768
 2010-02-10 05:54:04 +00:00
Daniel Dunbar
d2035fb242 MC: Switch MCFixup to just hold an MCExpr pointer instead of index into the 
MCInst it came from.

llvm-svn: 95767
 2010-02-10 04:47:08 +00:00
Daniel Dunbar
50b2609956 Fix a signed comparison warning. 
llvm-svn: 95766
 2010-02-10 04:46:51 +00:00
Daniel Dunbar
54d6a41882 Remove stray DOS newline. 
llvm-svn: 95765
 2010-02-10 04:10:10 +00:00
Daniel Dunbar
4e9161800a Add a ReleaseNotes FIXME. 
llvm-svn: 95764
 2010-02-10 04:09:52 +00:00
Garrison Venn
fc41a88897 Prevented build on WINDOWS using default make system. Stopped WINDOWS build 
at eh llvm/examples level using if check on LLVM_ON_UNIX.

llvm-svn: 95763
 2010-02-10 03:38:29 +00:00
Sean Callanan
c022448a07 Updated the enhanced disassembly library's TableGen 
backend to not use exceptions at all except in cases
of actual error.

llvm-svn: 95762
 2010-02-10 03:23:23 +00:00
Garrison Venn
4857ff7ad0 Prevented ExceptionDemo example being built on WINDOWS via if( NOT WIN32 ) 
check in examples cmake list file. This has NOT been tested.

llvm-svn: 95761
 2010-02-10 02:50:08 +00:00
Sean Callanan
65a17e3ac6 Updated the TableGen emitter for the Enhanced 
Disassembler to take advantage of the refactored
AsmWriterInst.h.  Note removed parser code.

llvm-svn: 95760
 2010-02-10 02:47:08 +00:00
Sean Callanan
d21eecd9a2 Changed AsmWriterOperand to also include the index of the 
operand into the CodeGenInstruction's list of operands,
which is useful for EDEmitter.  (Still working on PR6219)

llvm-svn: 95759
 2010-02-10 02:27:43 +00:00
Evan Cheng
8bee7fb61d Now that ShrinkDemandedOps() is separated out from DAG combine. It sometimes leave some obvious nops which dag combine used to clean up afterwards e.g. (trunk (ext n)) -> n. Look for them and squash them. 
llvm-svn: 95757
 2010-02-10 02:17:34 +00:00
Chris Lattner
aed1ea28cf "fixup" a comment. 
llvm-svn: 95754
 2010-02-10 01:46:47 +00:00
Chris Lattner
bd21fff65c Introduce a new CodeGenInstruction::ConstraintInfo class 
for representing constraint info semantically instead of
as a c expression that will be blatted out to the .inc
file.  Fix X86RecognizableInstr to use this instead of
parsing C code :).

llvm-svn: 95753
 2010-02-10 01:45:28 +00:00
Daniel Dunbar
75df429af0 llvm-mc: Remove --show-fixups and always show as part of --show-encoding. 
Also, fix a silly memory leak.

llvm-svn: 95752
 2010-02-10 01:41:14 +00:00
Dale Johannesen
12262a957f Rewrite loop to suit Chris' preference. 
llvm-svn: 95749
 2010-02-10 01:31:26 +00:00
Chris Lattner
72156036b9 fix a layering violation: VirtRegRewriter.cpp shouldn't use AsmPrinter.h. 
llvm-svn: 95748
 2010-02-10 01:23:18 +00:00
Evan Cheng
e0e620c006 Remove duplicated #include. 
llvm-svn: 95747
 2010-02-10 01:22:57 +00:00
Evan Cheng
8c2662f96a Emit an error for illegal inline asm constraint (which uses illegal type) rather than asserting. 
llvm-svn: 95746
 2010-02-10 01:21:02 +00:00
Chris Lattner
750bf54fc6 fix missing #includes. 
llvm-svn: 95745
 2010-02-10 01:17:36 +00:00
Chris Lattner
477ce1773c daniel *really* likes fixups! 
llvm-svn: 95742
 2010-02-10 01:05:28 +00:00
Chris Lattner
70fd490fa2 Stop MachineInstr.h from #including AsmPrinter.h 
llvm-svn: 95741
 2010-02-10 01:04:16 +00:00
Bill Wendling
270a5c4426 Improve comments a even more. 
llvm-svn: 95740
 2010-02-10 00:59:47 +00:00
Dale Johannesen
9b0d228b5f Skip DBG_VALUE many places in live intervals and 
register coalescing.  This fixes many crashes and
places where debug info affects codegen (when
dbg.value is lowered to machine instructions, which
it isn't yet in TOT).

llvm-svn: 95739
 2010-02-10 00:55:42 +00:00
Chris Lattner
db4b4d819d Move verbose asm instruction comments to using MCStreamer. 
The major win of this is that the code is simpler and they 
print on the same line as the instruction again:

        movl    %eax, 96(%esp)          ## 4-byte Spill
        movl    96(%esp), %eax          ## 4-byte Reload
        cmpl    92(%esp), %eax          ## 4-byte Folded Reload
        jl      LBB7_86

llvm-svn: 95738
 2010-02-10 00:47:53 +00:00
Bill Wendling
076bf7e91c Improve comments a bit more. 
llvm-svn: 95737
 2010-02-10 00:45:28 +00:00
Dale Johannesen
da728faa59 more comment updates 
llvm-svn: 95736
 2010-02-10 00:44:23 +00:00
Dale Johannesen
59679b7966 Add isDebug argument to ChangeToRegister; this prevents 
the field from being used uninitialized later in some cases.

llvm-svn: 95735
 2010-02-10 00:41:49 +00:00
Chris Lattner
6d7856867a print all the newlines at the end of instructions with 
OutStreamer.AddBlankLine instead of textually.

llvm-svn: 95734
 2010-02-10 00:36:00 +00:00
Kenneth Uildriks
d9026b3fa4 IntegerValType holds a uint32_t, so its constructor should take a uint32_t. This allows it to be properly initialized with bit widths > 65535 
llvm-svn: 95731
 2010-02-10 00:14:03 +00:00
Dale Johannesen
c9f253214e Fix comments to reflect renaming elsewhere. 
llvm-svn: 95730
 2010-02-10 00:11:11 +00:00
Kevin Enderby
f31bc700f1 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
ca01d26903 Add ability for MCInstPrinters to add comments for instructions. 
Enhance the x86 backend to show the hex values of immediates in
comments when they are large.  For example:

        movl    $1072693248, 4(%esp)    ## imm = 0x3FF00000

llvm-svn: 95728
 2010-02-10 00:10:18 +00:00
David Greene
bb211816b6 TableGen fragment refactoring. 
Move some utility TableGen defs, classes, etc. into a common file so
they may be used my multiple pattern files.  We will use this for
the AVX specification to help with the transition from the current
SSE specification.

llvm-svn: 95727
 2010-02-09 23:52:19 +00:00
Garrison Venn
bb6a6a6a47 Adds a JIT based exception handling example to the examples directory. 
Both zero cost example domain specific, and C++ foreign exception handling are 
shown. The example's documentation fully explains how to run the example.

Notes:

1)   The code uses an extremely simple type info model.
2)   Only a single landing pad is used per unwind edge 
     (one call to llvm.eh.selector)
3)   llvm.eh.selector support for filter arguments is not given.
4)   llvm.eh.typeid.for is not used.
5)   Forced unwind behavior is not supported.
6)   Very little if any error handling is given.
7)   __attribute__((__aligned__)) is used.
8)   The code uses parts from the llvm compiler-rt project and
     the llvm Kaleidoscope example.
9)   The code has not been ported or tested on WINDOWS.
10)  The code was not tested with a cmake build.
11)  The code was tested for a debug build on 32bit X86 CentOS LINUX, 
     and both a debug and release build on OS X 10.6.2 (64bit).

llvm-svn: 95723
 2010-02-09 23:22:43 +00:00
Sean Callanan
c1249e600e Fixed some indentation in the AsmWriterInst 
implementation.  Also changed the constructor
so that it does not require a Record, making it
usable by the EDEmitter.

llvm-svn: 95715
 2010-02-09 23:06:35 +00:00
Johnny Chen
1f609fe5fd Add VBIF/VBIT for disassembly only. 
A8.6.279

llvm-svn: 95713
 2010-02-09 23:05:23 +00:00
Jeffrey Yasskin
f7833b76ca Make --disable-libffi work on systems with libffi installed. Also 
make no-ffi the default even on systems with libffi.  This fixes
http://llvm.org/PR5018.

llvm-svn: 95712
 2010-02-09 23:03:44 +00:00
David Greene
d2c34ce826 Only dump output in debug mode. 
llvm-svn: 95711
 2010-02-09 23:03:05 +00:00
Daniel Dunbar
1b050afd4e llvm-mc: Add --show-fixups option, for displaying the instruction fixup information in the asm comments. 
llvm-svn: 95710
 2010-02-09 23:00:14 +00:00
Daniel Dunbar
75c5ab93a0 MC/X86: Add a dummy implementation of MCFixup generation for hacky X86 MCCodeEmitter. 
llvm-svn: 95709
 2010-02-09 23:00:03 +00:00
Daniel Dunbar
ddfda89472 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
Bill Wendling
fe743bc4d0 Improve comments in the LSDA somewhat. They can be improved much more. 
llvm-svn: 95707
 2010-02-09 22:49:16 +00:00
Johnny Chen
15da54da55 Added VMRS/VMSR for disassembly only. 
A8.6.335 & A8.6.336

llvm-svn: 95703
 2010-02-09 22:35:38 +00:00