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Commit Graph

19188 Commits

Author SHA1 Message Date
Chris Lattner
40fbf63df8 Major refactor of the ELFWriter code. Instead of building up one big
vector that represents the .o file at once, build up a vector for each
section of the .o file.  This is needed because the .o file writer needs
to be able to switch between sections as it emits them (e.g. switch
between the .text section and the .rel section when emitting code).

This patch has no functionality change.

llvm-svn: 22453
2005-07-16 08:01:13 +00:00
Nate Begeman
160c12d896 Teach the legalizer how to promote SINT_TO_FP to a wider SINT_TO_FP that
the target natively supports.  This eliminates some special-case code from
the x86 backend and generates better code as well.

For an i8 to f64 conversion, before & after:

_x87 before:
        subl $2, %esp
        movb 6(%esp), %al
        movsbw %al, %ax
        movw %ax, (%esp)
        filds (%esp)
        addl $2, %esp
        ret

_x87 after:
        subl $2, %esp
        movsbw 6(%esp), %ax
        movw %ax, (%esp)
        filds (%esp)
        addl $2, %esp
        ret

_sse before:
        subl $12, %esp
        movb 16(%esp), %al
        movsbl %al, %eax
        cvtsi2sd %eax, %xmm0
        addl $12, %esp
        ret

_sse after:
        subl $12, %esp
        movsbl 16(%esp), %eax
        cvtsi2sd %eax, %xmm0
        addl $12, %esp
        ret

llvm-svn: 22452
2005-07-16 02:02:34 +00:00
Nate Begeman
7a1bc7318d Teach the register allocator that movaps is also a move instruction
llvm-svn: 22451
2005-07-16 02:00:20 +00:00
Nate Begeman
c93c1c5148 A couple more darwinisms
llvm-svn: 22450
2005-07-16 01:59:47 +00:00
Chris Lattner
79573b1a93 Remove all knowledge of UINT_TO_FP from the X86 backend, relying on the
legalizer to eliminate them.  With this comes the expected code quality
improvements, such as, for this:

double foo(unsigned short X) { return X; }

we now generate this:

_foo:
        subl $4, %esp
        movzwl 8(%esp), %eax
        movl %eax, (%esp)
        fildl (%esp)
        addl $4, %esp
        ret

instead of this:

_foo:
        subl $4, %esp
        movw 8(%esp), %ax
        movzwl %ax, %eax   ;; Load not folded into this.
        movl %eax, (%esp)
        fildl (%esp)
        addl $4, %esp
        ret

-Chris

llvm-svn: 22449
2005-07-16 00:28:20 +00:00
Chris Lattner
10da57bfed Break the code for expanding UINT_TO_FP operations out into its own
SelectionDAGLegalize::ExpandLegalUINT_TO_FP method.

Add a new method, PromoteLegalUINT_TO_FP, which allows targets to request
that UINT_TO_FP operations be promoted to a larger input type.  This is
useful for targets that have some UINT_TO_FP or SINT_TO_FP operations but
not all of them (like X86).

The same should be done with SINT_TO_FP, but this patch does not do that
yet.

llvm-svn: 22447
2005-07-16 00:19:57 +00:00
Chris Lattner
94e486c56e You can't use config options without config.h
llvm-svn: 22446
2005-07-15 22:48:31 +00:00
Chris Lattner
bee317e9b0 Fix PR595: These error messages should not be looking at CGI.Name, they
should be looking at CGI.TheDef->getName().

llvm-svn: 22445
2005-07-15 22:43:04 +00:00
John Criswell
7e59cfe0bf Fixed some punctuation.
llvm-svn: 22443
2005-07-15 19:25:12 +00:00
Nate Begeman
957e0e7c9e Get closer to fully working scalar FP in SSE regs. This gets singlesource
working, and Olden/power.

llvm-svn: 22441
2005-07-15 00:38:55 +00:00
Nate Begeman
8c2dadc92e Add support for printing the sse scalar comparison instruction mnemonics.
llvm-svn: 22440
2005-07-14 22:52:25 +00:00
Nate Begeman
c871411c9d Add support for a TODO; instructions in .td files can now have arguments
printed as part of the opcode.  This allows something like
cmp${cc}ss in the x86 backed to be printed as cmpltss, cmpless, etc.
depending on what the value of $cc is.

llvm-svn: 22439
2005-07-14 22:50:30 +00:00
John Criswell
434270ec55 Regression test for PR#596: Make sure that negation of a minus doesn't
turn into a C predecrement operator.

llvm-svn: 22438
2005-07-14 19:56:03 +00:00
John Criswell
64f658a2f7 Fixed PR#596:
Add parenthesis around the value being negated; that way, if the value
begins with a minus sign (e.g. negative integer), we won't generate a
C predecrement operator by mistake.

llvm-svn: 22437
2005-07-14 19:41:16 +00:00
Chris Lattner
d8eb6ea6da Make this use the new autoconf support for finding the executables for
gv and Graphviz.

llvm-svn: 22434
2005-07-14 05:33:13 +00:00
Reid Spencer
d390dabdd5 * Correct the AC_DEFINE for LLVM_PATH_GRAPHVIZ to use AC_DEFINE_UNQUOTED so
we actually get the path and not $GRAPHVIZ as the value.
* Add a #define for the gv program (HAVE_GV) and its value LLVM_PATH_GV.

llvm-svn: 22433
2005-07-14 05:19:12 +00:00
Chris Lattner
d9f1a60c61 As discussed on IRC, this stuff is just for debugging.
llvm-svn: 22432
2005-07-14 05:17:43 +00:00
Reid Spencer
878f3f051f Put the path to the Graphviz program in the #defines so it can be used.
llvm-svn: 22430
2005-07-14 02:25:12 +00:00
Chris Lattner
61b33e0bc4 If the Graphviz program is available, use it to visualize dot graphs.
llvm-svn: 22429
2005-07-14 01:10:55 +00:00
Reid Spencer
2d8bc1004a Get rid of warnings on Alpha
llvm-svn: 22428
2005-07-13 23:20:24 +00:00
Reid Spencer
4ca34a740e Implement a test for the Graphviz program for Chris Lattner. The symbol
GRAPHVIZ will contain the path to the program if its found (or "echo Graphviz"
if not) and the #define HAVE_GRAPHVIZ will be defined if its found.

llvm-svn: 22424
2005-07-13 03:20:14 +00:00
Reid Spencer
ed5ee0f4e8 Don't call pthread_mutexattr_setpshared on FreeBSD because its implementation
of pthreads is missing that call (despite it violating the spec).

llvm-svn: 22423
2005-07-13 03:02:06 +00:00
Jeff Cohen
f008a9d1a7 Note to self: don't introduce memory leaks.
llvm-svn: 22422
2005-07-13 02:58:04 +00:00
Jeff Cohen
6e01930e34 Eliminate tabs
llvm-svn: 22421
2005-07-13 02:19:59 +00:00
Jeff Cohen
0882aa2a75 Win32 support for Mutex class.
llvm-svn: 22420
2005-07-13 02:15:18 +00:00
Chris Lattner
aeae45b371 Fix Alpha/2005-07-12-TwoMallocCalls.ll and PR593.
It is not safe to call LegalizeOp on something that has already been legalized.
Instead, just force another iteration of legalization.

This could affect all platforms but X86, as this codepath is dynamically
dead on X86 (ISD::MEMSET and friends are legal).

llvm-svn: 22419
2005-07-13 02:00:04 +00:00
Chris Lattner
3df095d677 new testcase for PR593
llvm-svn: 22418
2005-07-13 01:57:39 +00:00
Chris Lattner
628a248ff9 Fix test/Regression/CodeGen/Generic/2005-07-12-memcpy-i64-length.ll
llvm-svn: 22417
2005-07-13 01:42:45 +00:00
Chris Lattner
63cefe75ad new testcase that crashes llc on x86/ppc. Not generated by C/C++ or LLVM
though.

llvm-svn: 22416
2005-07-13 01:42:03 +00:00
Reid Spencer
e92540ca6b Add a test that runs the ParallelJIT example program to ensure that the
JIT can run against a multi-threaded program without getting its data
structures messed up. Also had to add the examples directory to the path
for the tests so that ParallelJIT can be found.

llvm-svn: 22415
2005-07-13 00:35:12 +00:00
Reid Spencer
d5aea06291 Correct the file title.
llvm-svn: 22414
2005-07-12 22:00:29 +00:00
Reid Spencer
605cafd051 For PR418:
Add an example program that utilizes multiple threads in the JIT to process
work. This was used by Evan Jones as the original test case for ensuring
that the ExecutionEngine was thread safe.

Original source by Evan Jones (adapted from other LLVM JIT examples) and
made LLVM style compliant by Reid Spencer.

llvm-svn: 22411
2005-07-12 21:51:33 +00:00
Nate Begeman
7330d9cd80 Check in the last of the darwin-specific code necessary to get shootout
working before modifying the asm printer to use the subtarget info.

llvm-svn: 22408
2005-07-12 18:34:58 +00:00
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
6fb6e35f3c Update release notes regarding thread-safe JIT.
llvm-svn: 22405
2005-07-12 16:36:24 +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
Reid Spencer
373e553223 For PR540:
* Add check for pthread.h
* Make sure -lpthread gets added to LIBS if its available

llvm-svn: 22402
2005-07-12 15:24:20 +00:00
Reid Spencer
206d3f0eff In support of PR418:
Make sure that -lpthread gets added to LIBS variable which puts it at the
end of the tools' link commands, if libpthread.a is found.

Add a test for pthread.h so we can use #ifdef HAVE_PTHREAD_H

llvm-svn: 22401
2005-07-12 07:19:13 +00:00
Chris Lattner
bec12eb953 Add support for 64-bit elf files
llvm-svn: 22400
2005-07-12 06:57:52 +00:00
Chris Lattner
81e3035723 Add support for emitting 64-bit integers
llvm-svn: 22399
2005-07-12 06:57:26 +00:00
Chris Lattner
79e388c0f6 Add some apparently undocumented ELF section header flags
llvm-svn: 22398
2005-07-12 06:40:29 +00:00
Andrew Lenharth
062b70fd54 Fix povray and minor cleanups
llvm-svn: 22397
2005-07-12 04:20:52 +00:00
Nate Begeman
0a08ce9c07 Clean up and add comments to the newly implemented subtarget code.
llvm-svn: 22396
2005-07-12 03:04:49 +00:00
Jeff Cohen
f212860211 Add new files to Visual Studio projects.
llvm-svn: 22395
2005-07-12 03:00:20 +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