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Commit Graph

10342 Commits

Author SHA1 Message Date
Nate Begeman
be4b78ff53 Remove some code that moved to the generic asm printer a long time ago.
llvm-svn: 22407
2005-07-12 18:34:15 +00:00
Reid Spencer
78910545f0 For PR540:
This patch completes the changes for making lli thread-safe. Here's the list
of changes:
* The Support/ThreadSupport* files were removed and replaced with the
  MutexGuard.h file since all ThreadSupport* declared was a Mutex Guard.
  The implementation of MutexGuard.h is now based on sys::Mutex which hides
  its implementation and makes it unnecessary to have the -NoSupport.h and
  -PThreads.h versions of ThreadSupport.

* All places in ExecutionEngine that previously referred to "Mutex" now
  refer to sys::Mutex

* All places in ExecutionEngine that previously referred to "MutexLocker"
  now refer to MutexGuard (this is frivolous but I believe the technically
  correct name for such a class is "Guard" not a "Locker").

These changes passed all of llvm-test. All we need now are some test cases
that actually use multiple threads.

llvm-svn: 22404
2005-07-12 15:51:55 +00:00
Reid Spencer
5f037ea395 For PR540:
Add a Mutex class for thread synchronization in a platform-independent way.
The current implementation only supports pthreads. Win32 use of Critical
Sections will be added later. The design permits other threading models to
be used if (and only if) pthreads is not available.

llvm-svn: 22403
2005-07-12 15:37:43 +00:00
Chris Lattner
bec12eb953 Add support for 64-bit elf files
llvm-svn: 22400
2005-07-12 06:57:52 +00:00
Andrew Lenharth
062b70fd54 Fix povray and minor cleanups
llvm-svn: 22397
2005-07-12 04:20:52 +00:00
Jeff Cohen
13c63ee283 I don't know how this ever compiled with gcc, but VC++ correctly rejects it.
llvm-svn: 22394
2005-07-12 02:59:38 +00:00
Jeff Cohen
7bc4266cf1 VC++ demands that the function returns a value
llvm-svn: 22393
2005-07-12 02:53:33 +00:00
Nate Begeman
4d96f2769c Clean up the TargetSubtarget class a bit, removing an unnecessary argument
to the constructor.

llvm-svn: 22392
2005-07-12 02:41:19 +00:00
Chris Lattner
b383dec36f Minor changes to improve comments and fix the build on _WIN32 systems.
llvm-svn: 22391
2005-07-12 02:36:10 +00:00
Chris Lattner
855fe2ea0c Add a note
llvm-svn: 22390
2005-07-12 02:35:36 +00:00
Nate Begeman
626fb671c8 Implement Subtarget support
Implement the X86 Subtarget.

This consolidates the checks for target triple, and setting options based
on target triple into one place.  This allows us to convert the asm printer
and isel over from being littered with "forDarwin", "forCygwin", etc. into
just having the appropriate flags for each subtarget feature controlling
the code for that feature.

This patch also implements indirect external and weak references in the
X86 pattern isel, for darwin.  Next up is to convert over the asm printers
to use this new interface.

llvm-svn: 22389
2005-07-12 01:41:54 +00:00
Nate Begeman
faf9b5b763 Commit some pending darwin changes before subtarget support.
llvm-svn: 22388
2005-07-12 01:37:28 +00:00
Chris Lattner
ac2bba6862 fix a warning
llvm-svn: 22385
2005-07-11 22:46:18 +00:00
Andrew Lenharth
10f725f64b Remove glibc specific functions, and mark a couple as C99
llvm-svn: 22384
2005-07-11 20:35:20 +00:00
Andrew Lenharth
8089fbc902 because on alpha:
#   define errno (*__errno_location ())

*shakes head

llvm-svn: 22383
2005-07-11 17:41:12 +00:00
Chris Lattner
8dd11b0f9c Clean up code, no functionality changes.
llvm-svn: 22382
2005-07-11 06:34:30 +00:00
Chris Lattner
cace336deb Output .size directives to tell the assembler the size of each function.
llvm-svn: 22381
2005-07-11 06:29:14 +00:00
Chris Lattner
af83621722 Fix crazy indentation
llvm-svn: 22380
2005-07-11 06:25:47 +00:00
Chris Lattner
d710b0a025 Emit a symbol table entry for each function we output to the ELF file. This
allows objdump to know which function we are emitting to:

00000000 <foo>:     <----
   0:   b8 01 00 00 00          mov    $0x1,%eax
   5:   03 44 24 04             add    0x4(%esp,1),%eax
   9:   c3                      ret

... and allows .o files to be useful for linking :)

llvm-svn: 22378
2005-07-11 06:17:35 +00:00
Chris Lattner
a556fc183f Refactor things a bit to allow the ELF code emitter to run the X86 machine code emitter
after itself.

llvm-svn: 22376
2005-07-11 05:17:48 +00:00
Chris Lattner
34d2a2ae23 add code to emit the .text section to the section header.
Add a *VERY INITIAL* machine code emitter class.  This is enough to take
this C function:
int foo(int X) { return X +1; }

and make objdump produce the following:

$ objdump -d t-llvm.o

t-llvm.o:     file format elf32-i386

Disassembly of section .text:

00000000 <.text>:
   0:   b8 01 00 00 00          mov    $0x1,%eax
   5:   03 44 24 04             add    0x4(%esp,1),%eax
   9:   c3                      ret


Anything using branches or refering to the constant pool or requiring
relocations will not work yet.

llvm-svn: 22375
2005-07-11 05:17:18 +00:00
Chris Lattner
41dbb3993d Remove prototype for non-existant function
llvm-svn: 22372
2005-07-11 04:20:55 +00:00
Chris Lattner
8c10fbf3cc Use a name mangler object to uniquify names and remove nonstandard
characters from them.

llvm-svn: 22371
2005-07-11 03:11:47 +00:00
Chris Lattner
cd3e31ee5a fix long lines
llvm-svn: 22369
2005-07-11 02:49:16 +00:00
Chris Lattner
ffaf40a143 Change *EXTLOAD to use an VTSDNode operand instead of being an MVTSDNode.
This is the last MVTSDNode.

This allows us to eliminate a bunch of special case code for handling
MVTSDNodes.

Also, remove some uses of dyn_cast that should really be cast (which is
cheaper in a release build).

llvm-svn: 22368
2005-07-10 01:56:13 +00:00
Chris Lattner
6e49696ba6 Change *EXTLOAD to use an VTSDNode operand instead of being an MVTSDNode.
This is the last MVTSDNode.

This allows us to eliminate a bunch of special case code for handling
MVTSDNodes.

llvm-svn: 22367
2005-07-10 01:55:33 +00:00
Chris Lattner
273b81e0c0 Change TRUNCSTORE to use a VTSDNode operand instead of being an MVTSTDNode
llvm-svn: 22366
2005-07-10 00:29:18 +00:00
Chris Lattner
c355896290 Introduce a new VTSDNode class with the ultimate goal of eliminating the
MVTSDNode class.  This class is used to provide an operand to operators
that require an extra type.  We start by converting FP_ROUND_INREG and
SIGN_EXTEND_INREG over to using it.

llvm-svn: 22364
2005-07-10 00:07:11 +00:00
Jeff Cohen
d1901833d9 Fix bugs also fixed in Unix version, plus other general cleanup.
llvm-svn: 22363
2005-07-09 18:42:49 +00:00
Jeff Cohen
32d77a9154 1. Fix bug in getBaseName where it mishandles suffixes
2. Fix bug in eraseSuffix where it allows /path/.suffix to become /path/

llvm-svn: 22362
2005-07-09 18:42:02 +00:00
Reid Spencer
0db6c1f252 Ensure that functions like isDirectory don't fail if the file doesn't
exist but just return false instead.

llvm-svn: 22361
2005-07-08 17:46:10 +00:00
Reid Spencer
6bed5ca433 Two changes:
1. Use isValid() to check validity of the resulting path name in the
   eraseSuffix even though we can't think of a case where eraseSuffix could
   possibly cause an invalid path name.
2. Rewrite isValid() to not use the deprecated realpath function any more.
   It now just uses isascii to make sure all the characters are legit.

llvm-svn: 22359
2005-07-08 06:53:26 +00:00
Chris Lattner
de44e16474 Add support for emitting a .data section and .bss section.
Add support for emitting external and .bss symbols.

llvm-svn: 22358
2005-07-08 05:47:00 +00:00
Jeff Cohen
00f7df2ba0 Stamp out tabs
llvm-svn: 22357
2005-07-08 05:02:13 +00:00
Jeff Cohen
2a6a854faf Make Win32 implementation conform to new paradigm
llvm-svn: 22356
2005-07-08 04:50:08 +00:00
Jeff Cohen
fff16d6986 Fix eraseSuffix()
llvm-svn: 22355
2005-07-08 04:49:16 +00:00
Reid Spencer
04d734c2f6 Final Changes For PR495:
This chagne just renames some sys::Path methods to ensure they are not
misused. The Path documentation now divides methods into two dimensions:
Path/Disk and accessor/mutator. Path accessors and mutators only operate
on the Path object itself without making any disk accesses. Disk accessors
and mutators will also access or modify the file system. Because of the
potentially destructive nature of disk mutators, it was decided that all
such methods should end in the work "Disk" to ensure the user recognizes
that the change will occur on the file system. This patch makes that
change. The method name changes are:

makeReadable        -> makeReadableOnDisk
makeWriteable       -> makeWriteableOnDisk
makeExecutable      -> makeExecutableOnDisk
setStatusInfo       -> setStatusInfoOnDisk
createDirectory     -> createDirectoryOnDisk
createFile          -> createFileOnDisk
createTemporaryFile -> createTemporaryFileOnDisk
destroy             -> eraseFromDisk
rename              -> renamePathOnDisk

These changes pass the Linux Deja Gnu tests.

llvm-svn: 22354
2005-07-08 03:08:58 +00:00
Jeff Cohen
abf7ec1fcc Fix VC++ breakage
llvm-svn: 22353
2005-07-08 02:48:42 +00:00
Nate Begeman
70532b9f00 Add support for assembling .s files on mac os x for intel
Add support for running bugpoint on mac os x for intel

llvm-svn: 22351
2005-07-08 00:23:26 +00:00
Reid Spencer
a23bbd3854 Changes to mimic those in Unix/Path.inc in support of PR495. This hasn't
been compiled or tested.

llvm-svn: 22350
2005-07-07 23:35:23 +00:00
Reid Spencer
5534b2d505 For PR495:
Get rid of the difference between file paths and directory paths. The Path
class now simply stores a path that can refer to either a file or a
directory. This required various changes in the implementation and interface
of the class with the corresponding impact to its users. Doxygen comments were
also updated to reflect these changes. Interface changes are:

appendDirectory -> appendComponent
appendFile -> appendComponent
elideDirectory -> eraseComponent
elideFile -> eraseComponent
elideSuffix -> eraseSuffix
renameFile -> rename
setDirectory -> set
setFile -> set

Changes pass Dejagnu and llvm-test/SingleSource tests.

llvm-svn: 22349
2005-07-07 23:21:43 +00:00
Chris Lattner
e102466ece Fix a problem that instcombine would hit when dealing with unreachable code.
Because the instcombine has to scan the entire function when it starts up
to begin with, we might as well do it in DFO so we can nuke unreachable code.

This fixes: Transforms/InstCombine/2005-07-07-DeadPHILoop.ll

llvm-svn: 22348
2005-07-07 20:40:38 +00:00
Andrew Lenharth
262477edde clean up prolouge and epilouge
llvm-svn: 22346
2005-07-07 19:52:58 +00:00
Reid Spencer
fb7bca6fa6 For PR495:
Change interface to Path class:
readable -> canRead
writable -> canWrite
executable -> canExecute

More (incremental) changes coming to close 495.

llvm-svn: 22345
2005-07-07 18:21:42 +00:00
Chris Lattner
e45dd7850d Restore some code that was accidentally removed by Nate's patch yesterday.
This fixes the regressions from last night.

llvm-svn: 22344
2005-07-07 17:12:53 +00:00
Chris Lattner
efccb190b5 Add support for emitting the symbol table (and its string table) of the
module to the ELF file.  Test it by adding support for emitting common
symbols.  This allows us to compile this:

%X = weak global int 0
%Y = weak global int 0
%Z = weak global int 0

to an elf file that 'readelf's this:

Symbol table '.symtab' contains 4 entries:
   Num:    Value  Size Type    Bind   Vis      Ndx Name
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND
     1: 00000004     4 OBJECT  GLOBAL DEFAULT  COM X
     2: 00000004     4 OBJECT  GLOBAL DEFAULT  COM Y
     3: 00000004     4 OBJECT  GLOBAL DEFAULT  COM Z

llvm-svn: 22343
2005-07-07 07:02:20 +00:00
Nate Begeman
667588d524 Fix a typo in my checkin today that caused regressions. Oops!
llvm-svn: 22341
2005-07-07 06:32:01 +00:00
Nate Begeman
e5314eb2c2 First round of support for doing scalar FP using the SSE2 ISA extension and
XMM registers.  There are many known deficiencies and fixmes, which will be
addressed ASAP.  The major benefit of this work is that it will allow the
LLVM register allocator to allocate FP registers across basic blocks.

The x86 backend will still default to x87 style FP.  To enable this work,
you must pass -enable-sse-scalar-fp and either -sse2 or -sse3 to llc.

An example before and after would be for:
double foo(double *P) { double Sum = 0; int i; for (i = 0; i < 1000; ++i)
                        Sum += P[i]; return Sum; }

The inner loop looks like the following:
x87:
.LBB_foo_1:     # no_exit
        fldl (%esp)
        faddl (%eax,%ecx,8)
        fstpl (%esp)
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

SSE2:
        addsd (%eax,%ecx,8), %xmm0
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

llvm-svn: 22340
2005-07-06 18:59:04 +00:00
Chris Lattner
199560c668 Make several cleanups to Andrews varargs change:
1. Pass Value*'s into lowering methods so that the proper pointers can be
   added to load/stores from the valist
2. Intrinsics that return void should only return a token chain, not a token
   chain/retval pair.
3. Rename LowerVAArgNext -> LowerVAArg, because VANext is long gone.
4. Now that we have Value*'s available in the lowering methods, pass them
   into any load/stores from the valist that are emitted

llvm-svn: 22339
2005-07-05 19:58:54 +00:00
Chris Lattner
bf100c8bdb Make several cleanups to Andrews varargs change:
1. Pass Value*'s into lowering methods so that the proper pointers can be
   added to load/stores from the valist
2. Intrinsics that return void should only return a token chain, not a token
   chain/retval pair.
3. Rename LowerVAArgNext -> LowerVAArg, because VANext is long gone.

llvm-svn: 22338
2005-07-05 19:57:53 +00:00