Commit Graph

127 Commits

Author SHA1 Message Date
Evan Cheng
25ab690a43 Committing X86-64 support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30177 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-08 06:48:29 +00:00
Jim Laskey
fde1b3bb2f 1. Remove condition on delete.
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30169 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 23:39:26 +00:00
Chris Lattner
2130b99eb2 Fix some X86 JIT failures. This should really come from TargetJITInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30102 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04 18:48:41 +00:00
Chris Lattner
1911fd4f85 Completely rearchitect the interface between targets and the pass manager.
This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30081 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04 04:14:57 +00:00
Chris Lattner
c4fa386471 Simplify target construction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30070 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03 18:44:02 +00:00
Evan Cheng
e50794adda - Enable x86 isel preprocessing by default unless -fast is specified.
- Also disable isel load folding if -fast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29956 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-29 18:28:33 +00:00
Nate Begeman
eb883af390 Initial checkin of the Mach-O emitter. There's plenty of fixmes, but it
does emit linkable .o files in very simple cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29850 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-23 21:08:52 +00:00
Nate Begeman
8f74680c78 Disable LSR at -fast
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29467 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-02 05:29:40 +00:00
Chris Lattner
35d86fef1f Rename RelocModel::PIC to PIC_, to avoid conflicts with -DPIC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29307 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-26 21:12:04 +00:00
Evan Cheng
55fc28076f - Refactor the code that resolve basic block references to a TargetJITInfo
method.
- Added synchronizeICache() to TargetJITInfo. It is called after each block
  of code is emitted to flush the icache. This ensures correct execution
  on targets that have separate dcache and icache.
- Added PPC / Mac OS X specific code to do icache flushing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29276 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-25 20:40:54 +00:00
Chris Lattner
1790d44d0d Don't pass target name into TargetData anymore, it is never used or needed.
Remove explicit casts to std::string now that there is no overload resolution
issues in the TargetData ctors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28830 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-16 18:22:52 +00:00
Evan Cheng
aa3c1410b4 Fix a build breaker.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28574 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-30 21:45:53 +00:00
Owen Anderson
bcd8a8264e Make TargetData strings less redundant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28423 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 23:28:54 +00:00
Owen Anderson
d988b32aba Make all of the TargetMachine subclasses use the new string TargetData methods.
This is part of the on-going work on PR 761.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28414 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 00:24:56 +00:00
Owen Anderson
a69571c799 Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses. This has one caller-visible change: getTargetData() now returns a pointer instead of a reference.
This fixes PR 759.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28074 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 01:29:57 +00:00
Nate Begeman
957e1674e7 Disable switch lowering for targets based on the selection dag isel,
letting the code generator handle them directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27539 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-08 19:46:55 +00:00
Nate Begeman
f15485a8d0 SelectionDAGISel can now natively handle Switch instructions, in the same
manner that the LowerSwitch LLVM to LLVM pass does: emitting a binary
search tree of basic blocks.  The new approach has several advantages:
it is faster, it generates significantly smaller code in many cases, and
it paves the way for implementing dense switch tables as a jump table by
handling switches directly in the instruction selector.

This functionality is currently only enabled on x86, but should be safe for
every target.  In anticipation of making it the default, the cfg is now
properly updated in the x86, ppc, and sparc select lowering code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27156 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-27 01:32:24 +00:00
Chris Lattner
bc641b9d8b Eliminate IntrinsicLowering from TargetMachine.
Make the CBE and V9 backends create their own, since they're the only ones that use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26974 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-23 05:43:16 +00:00
Evan Cheng
5fef51e9aa Turning on LSR by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26861 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-19 06:08:49 +00:00
Evan Cheng
714554d707 Added a way for TargetLowering to specify what values can be used as the
scale component of the target addressing mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26802 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-16 21:47:42 +00:00
Evan Cheng
c4c6257c1a Added getTargetLowering() to TargetMachine. Refactored targets to support this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26742 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 23:20:37 +00:00
Evan Cheng
627fb57e19 Add option -enable-x86-lsr to enable x86 loop strength reduction pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26665 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-09 21:51:28 +00:00
Evan Cheng
4c1aa86657 - Added option -relocation-model to set relocation model. Valid values include static, pic,
dynamic-no-pic, and default.
PPC and x86 default is dynamic-no-pic for Darwin, pic for others.
- Removed options -enable-pic and -ppc-static.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26315 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-22 20:19:42 +00:00
Evan Cheng
6428302f3d Disable PIC for JIT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26281 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-18 01:49:25 +00:00
Nate Begeman
4c5dcf54ff Kill the x86 pattern isel. boom.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26246 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 00:03:04 +00:00
Chris Lattner
4efab056e1 remove an old comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25940 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-03 18:59:39 +00:00
Chris Lattner
299f9bab47 Remove the X86PeepholeOptimizerPass, a truly horrible old hack that is now
obsolete.  yaay :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25939 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-03 18:54:24 +00:00
Evan Cheng
8e44f0756f Bye bye Pattern ISel, hello DAG ISel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25700 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 21:26:54 +00:00
Evan Cheng
559806f575 x86 CPU detection and proper subtarget support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25679 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 08:10:46 +00:00
Evan Cheng
97c7fc351e Added preliminary x86 subtarget support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25645 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 09:53:06 +00:00
Chris Lattner
2c2c6c61f1 Add explicit #includes of <iostream>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25515 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-22 23:41:00 +00:00
Evan Cheng
98f5dab8a7 Stop doing that accidental commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25474 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20 01:14:05 +00:00
Evan Cheng
21d5443934 A few more SH{L|R}D peepholes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25473 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20 01:13:30 +00:00
Evan Cheng
cce47faf52 Didn't mean to commit the last one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25469 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-19 23:27:08 +00:00
Evan Cheng
956044cf03 Added i16 SH{L|R}D patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25468 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-19 23:26:24 +00:00
Evan Cheng
bbc8ddbea3 SSE2 floating point load / store patterns. SSE2 fp to int conversion patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24886 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20 22:59:51 +00:00
Evan Cheng
56323c761a Only lower SELECT when using DAG based isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24755 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-17 01:22:13 +00:00
Chris Lattner
a763969837 remove some never-completed and now-obsolete code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24671 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-12 20:12:20 +00:00
Chris Lattner
c961eea6cb initial step at adding a dag-to-dag isel for X86 backend. Patch contributed
by Evan Cheng!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24371 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-16 01:54:32 +00:00
Chris Lattner
dbdbf0ce2e Separate X86ISelLowering stuff out from the X86ISelPattern.cpp file. Patch
contributed by Evan Cheng.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24358 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-15 00:40:23 +00:00
Chris Lattner
ce8eb0c16b Add a new option to indicate we want the code generator to emit code quickly,not spending tons of time microoptimizing it. This is useful for an -O0style of build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24233 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-08 02:11:51 +00:00
Jim Laskey
b1e1180ca0 1. Use SubtargetFeatures in llc/lli.
2. Propagate feature "string" to all targets.

3. Implement use of SubtargetFeatures in PowerPCTargetSubtarget.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23192 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-01 21:38:21 +00:00
Nate Begeman
73bfa71524 Remove the X86 and PowerPC Simple instruction selectors; their time has
passed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22886 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-18 23:53:15 +00:00
Jeff Cohen
00b16889ab Eliminate all remaining tabs and trailing spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 06:12:32 +00:00
Nate Begeman
fb5792f416 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22389 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 01:41:54 +00:00
Chris Lattner
81b6ed7ed1 Refactor things a bit to allow the ELF code emitter to run the X86 machine code emitter
after itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22376 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 05:17:48 +00:00
Nate Begeman
f63be7d395 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22340 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-06 18:59:04 +00:00
Chris Lattner
07a9144efe Add support to the X86 backend for emitting ELF files. To use this, we
currently use: llc t.bc --filetype=obj

This will produce a t.o file which is dumpable with readelf.  Currently
the file produced is empty, but the scaffolding to do more is now in place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22292 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-27 06:30:12 +00:00
Chris Lattner
0431c96cec Refactor the addPassesToEmitAssembly interface into a addPassesToEmitFile
interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22282 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-25 02:48:37 +00:00
Chris Lattner
6649418598 Enable pattern isel by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21898 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 19:56:09 +00:00