Commit Graph

238 Commits

Author SHA1 Message Date
Jeffrey Yasskin db5f24ce77 Make the need-stub variables accurate and consistent. In the case of
MachineRelocations, "stub" always refers to a far-call stub or a
load-a-faraway-global stub, so this patch adds "Far" to the term. (Other stubs
are used for lazy compilation and dlsym address replacement.) The variable was
also inconsistent between the positive and negative sense, and the positive
sense ("NeedStub") was more demanding than is accurate (since a nearby-enough
function can be called directly even if the platform often requires a stub).
Since the negative sense causes double-negatives, I switched to
"MayNeedFarStub" globally.

llvm-svn: 86363
2009-11-07 08:51:52 +00:00
Chris Lattner fb22a85baf apparently the X86 JIT isn't fully contextized, it is still using getGlobalContext() :(
llvm-svn: 85252
2009-10-27 17:01:03 +00:00
Nick Lewycky 974e12b2d3 Remove includes of Support/Compiler.h that are no longer needed after the
VISIBILITY_HIDDEN removal.

llvm-svn: 85043
2009-10-25 06:57:41 +00:00
Nick Lewycky 02d5f77d26 Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.

llvm-svn: 85042
2009-10-25 06:33:48 +00:00
Chris Lattner 0840c823e4 Fix PR5087, patch by Jakub Staszak!
llvm-svn: 83822
2009-10-12 04:22:44 +00:00
Devang Patel 051454a16f Update processDebugLoc() so that it can be used to process debug info before and after printing an instruction.
llvm-svn: 83363
2009-10-06 02:19:11 +00:00
Jakob Stoklund Olesen dc9efe8078 Introduce the TargetInstrInfo::KILL machine instruction and get rid of the
unused DECLARE instruction.

KILL is not yet used anywhere, it will replace TargetInstrInfo::IMPLICIT_DEF
in the places where IMPLICIT_DEF is just used to alter liveness of physical
registers.

llvm-svn: 83006
2009-09-28 20:32:26 +00:00
Nicolas Geoffray 8ab546ddca Also emit a label for TargetInstrInfo::GC_LABEL.
llvm-svn: 81206
2009-09-08 07:36:18 +00:00
Chris Lattner 1a67fe8862 just use dump()
llvm-svn: 80889
2009-09-03 05:39:09 +00:00
Daniel Dunbar ff0e622d1c Simplify.
llvm-svn: 80729
2009-09-01 22:07:06 +00:00
Daniel Dunbar 9ab9e0aa25 Fix what I believe is a copy-n-pasto introduced in r78129.
- Bruno, please check!!

llvm-svn: 80728
2009-09-01 22:07:00 +00:00
Daniel Dunbar 6c3843866c X86/Encoding: Support ExternalSymbol operands in emitDisplacementField (for consistency).
llvm-svn: 80727
2009-09-01 22:06:53 +00:00
Daniel Dunbar 73da11ebda llvm-mc: Switch MCInst to storing an MCExpr* instead of an MCValue.
Also, use MCInst::print instead of custom code in MCAsmPrinter.

llvm-svn: 80575
2009-08-31 08:08:38 +00:00
Daniel Dunbar 6e8b1a2530 llvm-mc/X86: Encode constant MCValue's correctly.
llvm-svn: 80485
2009-08-30 06:17:49 +00:00
Daniel Dunbar 981a71c302 llvm-mc/X86: Implement single instruction encoding interface for MC.
- Note, this is a gigantic hack, with the sole purpose of unblocking further
   work on the assembler (its also possible to test the mathcer more completely
   now).

 - Despite being a hack, its actually good enough to work over all of 403.gcc
   (although some encodings are probably incorrect). This is a testament to the 
   beauty of X86's MachineInstr, no doubt! ;)

llvm-svn: 80234
2009-08-27 08:12:55 +00:00
Devang Patel 0939595711 Record variable debug info at ISel time directly.
llvm-svn: 79742
2009-08-22 17:12:53 +00:00
Chris Lattner 10f605ce2b more formatting improvements, no functionality change.
llvm-svn: 79167
2009-08-16 02:45:18 +00:00
Chris Lattner 043bb021da code formatting improvements, no functionality change.
llvm-svn: 79165
2009-08-16 02:36:40 +00:00
Eric Christopher 7dfa9f2e56 Add crc32 instruction and intrinsics. Add a new class of prefix
bytes for F2 0F 38 and propagate. Add a FIXME for a set
of possibilities which correspond to intrinsics already used.

New test.

llvm-svn: 78508
2009-08-08 21:55:08 +00:00
Bruno Cardoso Lopes f6448f57e6 Use reloc_absolute_word_sext relocation for X86::MOV64(ri/mi)32 instructions,
since they are in 64 bit mode with i64immSExt32 imms. JIT is not affected since 
it handles both word absolute relocations in the same way

llvm-svn: 78479
2009-08-08 17:47:41 +00:00
Bruno Cardoso Lopes 1b02ceeb41 1) Proper emit displacements for x86, using absolute relocations where necessary
for ELF to work.  
2) RIP addressing: Use SIB bytes for absolute relocations where RegBase=0, 
IndexReg=0.
3) The JIT can get the real address of cstpools and jmptables during
code emission, fix that for object code emission

llvm-svn: 78129
2009-08-05 00:11:21 +00:00
Bill Wendling 6eecd56efc - s/DOUT/DEBUG(errs()/g
- Tidy up some headers.

llvm-svn: 77929
2009-08-03 00:11:34 +00:00
Dan Gohman 82e72324dd Use setPreservesAll in X86CodeEmitter.
llvm-svn: 77755
2009-07-31 23:44:16 +00:00
Daniel Dunbar 0dd5e1ed39 More migration to raw_ostream, the water has dried up around the iostream hole.
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
   "magic" DOUT behavior which avoided calling printing functions when the
   statement was disabled. In addition to being unnecessary magic, it had the
   downside of leaving code in -Asserts builds, and of hiding potentially
   unnecessary computations.

llvm-svn: 77019
2009-07-25 00:23:56 +00:00
Jeffrey Yasskin efad8e45fe Add line numbers to OProfile. To do this, I added a processDebugLoc()
call to the MachineCodeEmitter interface and made copying the start
line of a function not conditional on whether we're emitting Dwarf
debug information. I'll propagate the processDebugLoc() calls to the
non-X86 targets in a followup patch.

In the long run, it'll probably be better to gather this information
through the DwarfWriter, but the DwarfWriter currently depends on the
AsmPrinter and TargetAsmInfo, and fixing that would be out of the way
for this patch.

There's a bug in OProfile 0.9.4 that makes it ignore line numbers for
addresses above 4G, and a patch fixing it at
http://thread.gmane.org/gmane.linux.oprofile/7634

Sample output:

$ sudo opcontrol --reset; sudo opcontrol --start-daemon; sudo opcontrol --start; `pwd`/Debug/bin/lli fib.bc; sudo opcontrol --stop
Signalling daemon... done
Profiler running.
fib(40) == 165580141
Stopping profiling.

$ opreport -g -d -l `pwd`/Debug/bin/lli|head -60
Overflow stats not available
CPU: Core 2, speed 1998 MHz (estimated)
Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (Unhalted core cycles) count 100000
vma      samples  %        linenr info                 image name               symbol name
00007f67a30370b0 25489    61.2554  fib.c:24                    10946.jo                 fib_left
  00007f67a30370b0 1634      6.4106  fib.c:24
  00007f67a30370b1 83        0.3256  fib.c:24
  00007f67a30370b9 1997      7.8348  fib.c:24
  00007f67a30370c6 2080      8.1604  fib.c:27
  00007f67a30370c8 988       3.8762  fib.c:27
  00007f67a30370cd 1315      5.1591  fib.c:27
  00007f67a30370cf 251       0.9847  fib.c:27
  00007f67a30370d3 1191      4.6726  fib.c:27
  00007f67a30370d6 975       3.8252  fib.c:27
  00007f67a30370db 1010      3.9625  fib.c:27
  00007f67a30370dd 242       0.9494  fib.c:27
  00007f67a30370e1 2782     10.9145  fib.c:28
  00007f67a30370e5 3768     14.7828  fib.c:28
  00007f67a30370eb 615       2.4128  (no location information)
  00007f67a30370f3 6558     25.7287  (no location information)
00007f67a3037100 15603    37.4973  fib.c:29                    10946.jo                 fib_right
  00007f67a3037100 1646     10.5493  fib.c:29
  00007f67a3037101 45        0.2884  fib.c:29
  00007f67a3037109 2372     15.2022  fib.c:29
  00007f67a3037116 2234     14.3178  fib.c:32
  00007f67a3037118 612       3.9223  fib.c:32
  00007f67a303711d 622       3.9864  fib.c:32
  00007f67a303711f 385       2.4675  fib.c:32
  00007f67a3037123 404       2.5892  fib.c:32
  00007f67a3037126 634       4.0633  fib.c:32
  00007f67a303712b 870       5.5759  fib.c:32
  00007f67a303712d 62        0.3974  fib.c:32
  00007f67a3037131 1848     11.8439  fib.c:33
  00007f67a3037135 2840     18.2016  fib.c:33
  00007f67a303713a 1         0.0064  fib.c:33
  00007f67a303713b 1023      6.5564  (no location information)
  00007f67a3037143 5         0.0320  (no location information)
000000000080c1e4 15        0.0360  MachineOperand.h:150        lli                      llvm::MachineOperand::isReg() const
  000000000080c1e4 6        40.0000  MachineOperand.h:150
  000000000080c1ec 2        13.3333  MachineOperand.h:150
...

llvm-svn: 76102
2009-07-16 21:07:26 +00:00
Bruno Cardoso Lopes ef130cfa95 Use the right relocation type for X86::MOV64ri64i32
llvm-svn: 75687
2009-07-14 21:46:40 +00:00
Torok Edwin fbcc663cbf llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
2009-07-14 16:55:14 +00:00
Torok Edwin 56d0659726 assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
2009-07-11 20:10:48 +00:00
Chris Lattner ca9d784bf1 change isGlobalStubReference to take target flags instead of a MachineOperand.
llvm-svn: 75236
2009-07-10 06:29:59 +00:00
Chris Lattner e6d259340e convert some late code (called by regalloc and code emission)
to use isGlobalStubReference instead of GVRequiresExtraLoad
(which should really be part of isel).

llvm-svn: 75234
2009-07-10 06:07:08 +00:00
Chris Lattner b9af63a4d2 GVRequiresExtraLoad is now never used for calls, simplify it based on this.
llvm-svn: 75232
2009-07-10 05:52:02 +00:00
Chris Lattner 405d024c71 convert a helper method to be a static function instead of a
template.  Also convert it to take a MachineOperand instead of a GV*

llvm-svn: 75227
2009-07-10 05:27:43 +00:00
Torok Edwin fb8d6d5b58 Implement changes from Chris's feedback.
Finish converting lib/Target.

llvm-svn: 75043
2009-07-08 20:53:28 +00:00
Torok Edwin 6dd2730024 Start converting to new error handling API.
cerr+abort -> llvm_report_error
assert(0)+abort -> LLVM_UNREACHABLE (assert(0)+llvm_unreachable-> abort() included)

llvm-svn: 75018
2009-07-08 18:01:40 +00:00
Bruno Cardoso Lopes 5661ea68e7 Add the Object Code Emitter class. Original patch by Aaron Gray, I did some
cleanup, removed some #includes and moved Object Code Emitter out-of-line.

llvm-svn: 74813
2009-07-06 05:09:34 +00:00
Chris Lattner 014e83d40d fix a bunch of failures in the X86-64 JIT by tolerating RIP as
a base register.  We just ignore it for now.

llvm-svn: 74374
2009-06-27 04:46:33 +00:00
Bruno Cardoso Lopes 9fd794bebf Fix new CodeEmitter stuff to follow LLVM codying style. Patch by Aaron Gray
llvm-svn: 72697
2009-06-01 19:57:37 +00:00
Bruno Cardoso Lopes a194c3a69e First patch in the direction of splitting MachineCodeEmitter in two subclasses:
JITCodeEmitter and ObjectCodeEmitter. No functional changes yet. Patch by Aaron Gray

llvm-svn: 72631
2009-05-30 20:51:52 +00:00
Bill Wendling 2e09bd3d34 The MONITOR and MWAIT instructions have insufficient information for
decoding. Essentially, they both map to the same column in the "opcode
extensions for one- and two-byte opcodes" table in the x86 manual. The RawFrm
complicates decoding this.

Instead, use opcode 0x01, prefix 0x01, and form MRM1r. Then have the code
emitter special case these, a la [SML]FENCE.

llvm-svn: 72556
2009-05-28 23:40:46 +00:00
Evan Cheng 55173b7646 Avoid unneeded SIB byte encoding. Patch by Zoltan Varga.
llvm-svn: 71520
2009-05-12 00:07:35 +00:00
Dale Johannesen 72b6582c0f Use X86AddrNumOperands instead of magic constant one
more place.  This fixes a bunch of x86-64 JIT regressions.
(Introduced when the value of the magic constant changed
in 68645.  At the time apparently nobody noticed; failures
were hidden in 70343-70439 by an unrelated bug, so showed
up again as "new" failures in 70440.)

llvm-svn: 71106
2009-05-06 19:04:30 +00:00
Evan Cheng a35aed567a Revert part of 70929 that has to do with determining whether a SIB byte is needed. It causes a lot of x86_64 JIT failures.
llvm-svn: 70986
2009-05-05 18:18:57 +00:00
Evan Cheng c298ccb998 - Avoid the longer SIB encoding on x86_64 when it's not needed.
- Synchronize instruction length computation code in X86InstrInfo with code in X86CodeEmitter.cpp
Patch by Zoltan Varga.

llvm-svn: 70929
2009-05-04 22:49:16 +00:00
Rafael Espindola 3b2df10c9e Re-apply 68552.
Tested by bootstrapping llvm-gcc and using that to build llvm.

llvm-svn: 68645
2009-04-08 21:14:34 +00:00
Bill Wendling 4aa25b79f9 Temporarily revert r68552. This was causing a failure in the self-hosting LLVM
builds.

--- Reverse-merging (from foreign repository) r68552 into '.':
U    test/CodeGen/X86/tls8.ll
U    test/CodeGen/X86/tls10.ll
U    test/CodeGen/X86/tls2.ll
U    test/CodeGen/X86/tls6.ll
U    lib/Target/X86/X86Instr64bit.td
U    lib/Target/X86/X86InstrSSE.td
U    lib/Target/X86/X86InstrInfo.td
U    lib/Target/X86/X86RegisterInfo.cpp
U    lib/Target/X86/X86ISelLowering.cpp
U    lib/Target/X86/X86CodeEmitter.cpp
U    lib/Target/X86/X86FastISel.cpp
U    lib/Target/X86/X86InstrInfo.h
U    lib/Target/X86/X86ISelDAGToDAG.cpp
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
U    lib/Target/X86/AsmPrinter/X86IntelAsmPrinter.cpp
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.h
U    lib/Target/X86/AsmPrinter/X86IntelAsmPrinter.h
U    lib/Target/X86/X86ISelLowering.h
U    lib/Target/X86/X86InstrInfo.cpp
U    lib/Target/X86/X86InstrBuilder.h
U    lib/Target/X86/X86RegisterInfo.td

llvm-svn: 68560
2009-04-07 22:35:25 +00:00
Rafael Espindola 1edda06792 Reduce code duplication on the TLS implementation.
This introduces a small regression on the generated code
quality in the case we are just computing addresses, not
loading values.

Will work on it and on X86-64 support.

llvm-svn: 68552
2009-04-07 21:37:46 +00:00
Rafael Espindola 6ff3dabbb4 Have only one definition of X86AddrNumOperands.
llvm-svn: 67949
2009-03-28 18:55:31 +00:00
Rafael Espindola c2a17d3022 Make code a bit less brittle by no hardcoding the number
of operands in an address in so many places.

llvm-svn: 67945
2009-03-28 17:03:24 +00:00
Evan Cheng 2a332aa866 Re-apply 66024 with fixes: 1. Fixed indirect call to immediate address assembly. 2. Fixed JIT encoding by making the address pc-relative.
llvm-svn: 66803
2009-03-12 18:15:39 +00:00
Evan Cheng 0b77319742 Fix MachineCodeEmitter to use uintptr_t instead of intptr_t. This avoids some overflow issues. Patch by Thomas Jablin.
llvm-svn: 60828
2008-12-10 02:32:19 +00:00