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Commit Graph

1333 Commits

Author SHA1 Message Date
Evan Cheng
380dc98371 Add MCObjectFileInfo and sink the MCSections initialization code from
TargetLoweringObjectFileImpl down to MCObjectFileInfo.

TargetAsmInfo is done to one last method. It's *almost* gone!

llvm-svn: 135569
2011-07-20 05:58:47 +00:00
Evan Cheng
bfc0cac54d Introduce MCCodeGenInfo, which keeps information that can affect codegen
(including compilation, assembly). Move relocation model Reloc::Model from
TargetMachine to MCCodeGenInfo so it's accessible even without TargetMachine.

llvm-svn: 135468
2011-07-19 06:37:02 +00:00
Bill Wendling
cd5cb5b44e Micro-opt: Only emit compact unwind if there is a compact unwind encoding to emit.
llvm-svn: 135452
2011-07-19 00:09:25 +00:00
Bill Wendling
8dd021da20 Use the CompactUnwindEncoding from the Frame, if it's defined.
llvm-svn: 135451
2011-07-19 00:06:12 +00:00
Bill Wendling
6211e2602f Add a method to set compact unwind encoding information in a frame.
llvm-svn: 135449
2011-07-19 00:01:42 +00:00
Sean Callanan
b5cc61ce9a Fixed a bug where the MC subtarget information
wasn't being initialized by the enhanced disassembler,
leading to assertion failures. 

llvm-svn: 135447
2011-07-19 00:00:41 +00:00
Evan Cheng
10c6820ff4 Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions for
better location welcome).

llvm-svn: 135438
2011-07-18 22:29:13 +00:00
Evan Cheng
561d71ce7b Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo down
to MCRegisterInfo. Also initialize the mapping at construction time.

This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step
towards fixing the layering violation.

llvm-svn: 135424
2011-07-18 20:57:22 +00:00
Evan Cheng
1ae06d95e0 Move some parts of TargetAsmInfo down to MCAsmInfo. This is not the greatest
solution but it is a small step towards removing the horror that is
TargetAsmInfo.

llvm-svn: 135237
2011-07-15 02:09:41 +00:00
Bill Wendling
953f7ddcc2 Remove setting the bit for personality function. It should be set by the linker.
llvm-svn: 135236
2011-07-15 01:42:32 +00:00
Bill Wendling
6d36444dc5 Encode that we have a personality function.
llvm-svn: 135227
2011-07-15 00:07:31 +00:00
Evan Cheng
9e8f90a020 Rename createAsmInfo to createMCAsmInfo and move registration code to MCTargetDesc to prepare for next round of changes.
llvm-svn: 135219
2011-07-14 23:50:31 +00:00
Bill Wendling
fb25bf95c9 * If we have an LSDA, we need to mark it in the encoding.
* The personality function should be encoded as an absolute pointer to the function.

llvm-svn: 135215
2011-07-14 23:34:45 +00:00
Evan Cheng
3d2be55d6c Unfortunately several files in MC are badly violating layering rule by using
TargetAsmInfo, which in turn pulls in TargetRegisterInfo, etc. :-( There are
other cases of violations, but this is probably the worst.

This patch is but one small step towards fixing this. 500 more steps to go. :-(

llvm-svn: 135131
2011-07-14 05:43:07 +00:00
Jim Grosbach
e0fc4019f9 Update MCParsedAsmOperand debug methods.
Update the debug output interface for MCParsedAsmOperand to have a print()
method which takes an output stream argument, an << operator which invokes
the print method using the given stream, and a dump() method which prints
the operand to the dbgs() stream. This makes the interface more consistent
with the rest of LLVM, and more convenient to use at the debugger command
line.

llvm-svn: 135043
2011-07-13 15:34:57 +00:00
Bill Wendling
e6de1eeb86 Don't emit the FDE end label if the last thing emitted was a compact unwind and
not the FDE

llvm-svn: 135020
2011-07-13 00:49:09 +00:00
Shantonu Sen
004cce78e1 Resynchronize EDInfo.h and EDEmitter.cpp.
The enum names as well as order (i.e. value)
had skewed, which means that consumers of the
tablegen-ed table would see different values than
intended. Make both files have a superset of enums,
and add classification as needed for numMCOperands.

Reviewed by Owen Anderson

llvm-svn: 134905
2011-07-11 17:57:30 +00:00
Evan Cheng
1346a63a0f - Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo
and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
  detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
  MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
  MCSubtargetInfo so MC code emitter can do the right thing.

llvm-svn: 134884
2011-07-11 03:57:24 +00:00
Evan Cheng
c9e252df68 Change createAsmParser to take a MCSubtargetInfo instead of triple,
CPU, and feature string. Parsing some asm directives can change
subtarget state (e.g. .code 16) and it must be reflected in other
modules (e.g. MCCodeEmitter). That is, the MCSubtargetInfo instance
must be shared.

llvm-svn: 134795
2011-07-09 05:47:46 +00:00
Evan Cheng
c7842ef950 Fix comment.
llvm-svn: 134763
2011-07-08 22:49:42 +00:00
Evan Cheng
34f67f2dda TargetAsmParser doesn't need reference to Target.
llvm-svn: 134721
2011-07-08 19:33:14 +00:00
Evan Cheng
50f2d8d304 Eliminate asm parser's dependency on TargetMachine:
- Each target asm parser now creates its own MCSubtatgetInfo (if needed).
- Changed AssemblerPredicate to take subtarget features which tablegen uses
  to generate asm matcher subtarget feature queries. e.g.
  "ModeThumb,FeatureThumb2" is translated to
  "(Bits & ModeThumb) != 0 && (Bits & FeatureThumb2) != 0".

llvm-svn: 134678
2011-07-08 01:53:10 +00:00
Akira Hatanaka
b4c145253b This patch adds a flag in MCAsmInfo that indicates whether dwarf register
numbers should be printed instead of symbolic register names in
MCAsmStreamer::EmitRegisterName. This is necessary because some versions of
GNU assembler won't accept code in which symbolic register names are used in
cfi directives. There is no change in behavior unless the flag is explicitly
set to true by a backend.

llvm-svn: 134635
2011-07-07 20:30:33 +00:00
Evan Cheng
18acf2200c Compute feature bits at time of MCSubtargetInfo initialization.
llvm-svn: 134606
2011-07-07 07:07:08 +00:00
Bill Wendling
ba39846c2b Add a target hook to encode the compact unwind information.
llvm-svn: 134577
2011-07-07 00:54:13 +00:00
Bill Wendling
fd3f4e7040 Clean up the #includes.
llvm-svn: 134557
2011-07-06 22:52:32 +00:00
Evan Cheng
dcd3ea7062 createMCInstPrinter doesn't need TargetMachine anymore.
llvm-svn: 134525
2011-07-06 19:45:42 +00:00
Evan Cheng
09210c224a Add getFeatureBits to extract feature bits for a given CPU.
llvm-svn: 134298
2011-07-02 00:43:44 +00:00
Evan Cheng
771cdf9b5d - Added MCSubtargetInfo to capture subtarget features and scheduling
itineraries.
- Refactor TargetSubtarget to be based on MCSubtargetInfo.
- Change tablegen generated subtarget info to initialize MCSubtargetInfo
  and hide more details from targets.

llvm-svn: 134257
2011-07-01 20:45:01 +00:00
Evan Cheng
a4b2c3d5ba Eliminate one extra conversion.
llvm-svn: 134240
2011-07-01 16:59:30 +00:00
Francois Pichet
f143a222d0 Another misuse of StringRef. MSVC is very sensitive to that kind of error.
llvm-svn: 134236
2011-07-01 09:23:41 +00:00
Rafael Espindola
018ca8fea8 Fix use after free.
llvm-svn: 134234
2011-07-01 04:40:50 +00:00
Evan Cheng
1fa6460e3f Switch SubtargetFeatures from std::string to StringRef.
llvm-svn: 134219
2011-07-01 00:23:10 +00:00
Bill Wendling
770794cc60 Remove tabs.
llvm-svn: 134212
2011-06-30 23:59:38 +00:00
Bill Wendling
995ebcfd4c Improve comment: Show the register the DWARF label is added to.
llvm-svn: 134209
2011-06-30 23:47:40 +00:00
Bill Wendling
80c39ac9a5 Add one more comment to the FDE verbose asm output.
llvm-svn: 134200
2011-06-30 22:35:49 +00:00
Bill Wendling
834cb876e6 Add comments to the FDE.
llvm-svn: 134196
2011-06-30 22:02:20 +00:00
Bill Wendling
eace9970bd Add more comments to the ASM output for the CIE's "moves".
llvm-svn: 134194
2011-06-30 21:45:12 +00:00
Bill Wendling
7a94c43c7a Add comments to the ASM output to help understand the compact unwind and CIE tables.
llvm-svn: 134191
2011-06-30 21:25:51 +00:00
Evan Cheng
034261674b Fix the ridiculous SubtargetFeatures API where it implicitly expects CPU name to
be the first encoded as the first feature. It then uses the CPU name to look up
features / scheduling itineray even though clients know full well the CPU name
being used to query these properties.

The fix is to just have the clients explictly pass the CPU name!

llvm-svn: 134127
2011-06-30 01:53:36 +00:00
Bill Wendling
3080b09d31 * Use the proper size to output the range size.
* Rough in the compact encoding part.

llvm-svn: 134119
2011-06-30 00:30:52 +00:00
Bill Wendling
5a7a3562e0 Stupid error: If the LSDA and Personality functions aren't there, emit 0 instead
of the encoding.

llvm-svn: 134117
2011-06-29 23:53:16 +00:00
Bill Wendling
d394aea75e We don't want to use relocations inside the compact unwind section. Just use the
symbols instead.

llvm-svn: 134115
2011-06-29 23:49:12 +00:00
Jim Grosbach
88387d64d6 Asm parser range checking on .<size> <value> directives.
For example, ".byte 256" would previously assert() when emitting an object
file. Now it generates a diagnostic that the literal value is out of range.

rdar://9686950

llvm-svn: 134069
2011-06-29 16:05:14 +00:00
NAKAMURA Takumi
63570a1cf3 Fix CMake build.
llvm-svn: 134055
2011-06-29 03:26:17 +00:00
Evan Cheng
b4dc8bdd22 Sink SubtargetFeature and TargetInstrItineraries (renamed MCInstrItineraries) into MC.
llvm-svn: 134049
2011-06-29 01:14:12 +00:00
Jim Grosbach
440526a1e8 Refactor MachO relocation generaration into the Target directories.
Move the target-specific RecordRelocation logic out of the generic MC
MachObjectWriter and into the target-specific object writers. This allows
nuking quite a bit of target knowledge from the supposedly target-independent
bits in lib/MC.

llvm-svn: 133844
2011-06-24 23:44:37 +00:00
Jim Grosbach
c3b24db27e tidy up whitespace.
llvm-svn: 133815
2011-06-24 19:43:27 +00:00
Jim Grosbach
4ba3d51f23 Fixup info for Thumb2 unconditional branch.
rdar://9667872

llvm-svn: 133808
2011-06-24 18:48:32 +00:00
Jim Grosbach
e216f0411d Tidy up.
llvm-svn: 133770
2011-06-23 22:29:00 +00:00