Commit Graph

130 Commits

Author SHA1 Message Date
Evan Cheng
4b322e58b7 Shrinkify Thumb2 load / store multiple instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78717 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 21:11:32 +00:00
Chris Lattner
dfab291702 split "JumpTableDirective" (an existing hack) into a PIC and nonPIC
version.  This allows TAI implementations to specify the directive to use
based on the mode being codegen'd for.

The real fix for this is to remove JumpTableDirective, but I don't feel
like diving into the jumptable snarl just now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78709 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 20:30:58 +00:00
Evan Cheng
195c71b472 Fix the previous accidental commit. Now shrinking common Thumb2 load / store instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78659 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 09:37:40 +00:00
Evan Cheng
3a21425dbe Fix Thumb2 load / store addressing mode matching code. Do not use so_reg form to
match base only address, i.e. [r] since Thumb2 requires a offset register field.
For those, use [r + imm12] where the immediate is zero.
Note the generated assembly code does not look any different after the patch.
But the bug would have broken the JIT (if there is Thumb2 support) and it can
break later passes which expect the address mode to be well-formed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78658 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 08:52:18 +00:00
Jim Grosbach
1b747ad8a0 SjLj based exception handling unwinding support. This patch is nasty, brutish
and short. Well, it's kinda short. Definitely nasty and brutish.

The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.

Built on Darwin and verified no llvm-core "make check" regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 00:09:57 +00:00
Chris Lattner
f9bdeddb96 split MachO section handling stuff out to its out .h/.cpp file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10 18:15:01 +00:00
Chris Lattner
f3231de60b arm only needs to emit one .align directive for hidden nlp's, not one
per pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78574 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10 18:02:16 +00:00
Chris Lattner
c076a97939 make sure that arm nonlazypointers are aligned properly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78573 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10 18:01:34 +00:00
Chris Lattner
ff4bc460c5 Make the big switch: Change MCSectionMachO to represent a section *semantically*
instead of syntactically as a string.  This means that it keeps track of the 
segment, section, flags, etc directly and asmprints them in the right format.
This also includes parsing and validation support for llvm-mc and 
"attribute(section)", so we should now start getting errors about invalid 
section attributes from the compiler instead of the assembler on darwin.

Still todo: 
1) Uniquing of darwin mcsections
2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h]
3) there are a few FIXMEs, for example what is the syntax to get the
   S_GB_ZEROFILL segment type?



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78547 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10 01:39:42 +00:00
Anton Korobeynikov
8e9ece75db Use subclassing to print lane-like immediates (w/o hash) eliminating
'no_hash' modifier. Hopefully this will make Daniel happy :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78514 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08 23:10:41 +00:00
Anton Korobeynikov
3405201bce Lane number should be printed w/o hash
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78469 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08 14:05:53 +00:00
Chris Lattner
41aefdcdd1 make printInstruction return void since its result is omitted. Make the
error condition get trapped with an assert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78449 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08 01:32:19 +00:00
Anton Korobeynikov
32a1b25781 2 more vdup.32 cases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78419 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07 22:36:50 +00:00
Evan Cheng
d77c7aba83 Thumb2 32-bit ldm / stm needs .w suffix if submode is ia.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78410 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07 21:19:10 +00:00
Anton Korobeynikov
567d14f07c Missed pieces for ARM HardFP ABI.
Patch by Sandeep Patel!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78225 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 19:04:42 +00:00
Devang Patel
bccdcb1857 Remove dead code. MDNode and MDString are not Constant anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 16:40:02 +00:00
Dan Gohman
1c55fab534 Don't flush the raw_ostream between each MachineFunction. These flush
calls were originally put in place because errs() at one time was
not unbuffered, and these print routines are commonly used with errs()
for debugging. However, errs() is now properly unbuffered, so the
flush calls are no longer needed. This significantly reduces the
number of write(2) calls for regular asm printing when there are many
small functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78137 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 00:49:25 +00:00
Bob Wilson
c00479253b Replace dregsingle operand modifier with explicit escaped curly brackets.
For other VLDn and VSTn operations, we need to list the multiple registers
explicitly anyway, so there's no point in special-casing this one usage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78109 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04 21:39:33 +00:00
Evan Cheng
9e7a312391 Enable load / store multiple pass for Thumb2. It's not using ldrd / strd yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78104 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04 21:12:13 +00:00
Evan Cheng
27934da97b Load / store multiple pass fixes for Thumb2. Not enabled yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78031 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04 01:43:45 +00:00
Chris Lattner
5e44e472d6 use TLOF to compute the section for a function instead of
replicating the logic manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78011 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03 22:32:50 +00:00
Chris Lattner
f61159b574 convert macho stub emission to use SwitchToSection instead of
textual sections.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78007 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03 22:18:15 +00:00
Chris Lattner
a87dea4f8c switch off of 'Section' onto MCSection. We're not properly using
MCSection subclasses yet, but this is a step in the right direction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 18:48:30 +00:00
Evan Cheng
ff6ab17619 Until we have a "ALIGN" pseudo instruction, have asm printer emitted a .align
to ensure the instruction that follows a TBB (when the number of table entries
is odd) is 2-byte aligned.
Patch by Sandeep Patel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 18:35:56 +00:00
Daniel Dunbar
7f93dc8345 Switch obvious clients to Twine instead of utostr (when they were already using
a Twine, e.g., for names).
 - I am a little ambivalent about this; we don't want the string conversion of
   utostr, but using overload '+' mixed with string and integer arguments is
   sketchy. On the other hand, this particular usage is something of an idiom.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77579 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 04:20:37 +00:00
Chris Lattner
e53a600f06 pass the mangler down into the various SectionForGlobal methods.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77432 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 05:09:30 +00:00
Evan Cheng
5657c01949 Optimize Thumb2 jumptable to use tbb / tbh when all the offsets fit in byte / halfword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77422 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 02:18:14 +00:00
Devang Patel
0a9f7b9c3e Rename MDNode.h header. It defines MDnode and other metadata classes.
New name is Metadata.h.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77370 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 21:49:47 +00:00
Chris Lattner
f0144127b9 Rip all of the global variable lowering logic out of TargetAsmInfo. Since
it is highly specific to the object file that will be generated in the end,
this introduces a new TargetLoweringObjectFile interface that is implemented
for each of ELF/MachO/COFF/Alpha/PIC16 and XCore.

Though still is still a brutal and ugly refactoring, this is a major step
towards goodness.

This patch also:
1. fixes a bunch of dangling pointer problems in the PIC16 backend.
2. disables the TargetLowering copy ctor which PIC16 was accidentally using.
3. gets us closer to xcore having its own crazy target section flags and
   pic16 not having to shadow sections with its own objects.
4. fixes wierdness where ELF targets would set CStringSection but not
   CStringSection_.  Factor the code better.
5. fixes some bugs in string lowering on ELF targets.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77294 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 03:13:23 +00:00
Chris Lattner
5fe575ff4f Eliminate SectionFlags, just embed a SectionKind into Section
instead and drive things based off of that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27 05:32:16 +00:00
Daniel Dunbar
93b67e40de Eliminate some uses of DOUT, cerr, and getNameStart().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 07:49:05 +00:00
Daniel Dunbar
03d7651c36 Remove Value::{isName, getNameRef}.
Also, change MDString to use a StringRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 23:55:21 +00:00
Daniel Dunbar
0c795d6187 Add new helpers for registering targets.
- Less boilerplate == good.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77052 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 06:49:55 +00:00
Evan Cheng
66ac53165e Change Thumb2 jumptable codegen to one that uses two level jumps:
Before:
      adr r12, #LJTI3_0_0
      ldr pc, [r12, +r0, lsl #2]
LJTI3_0_0:
      .long    LBB3_24
      .long    LBB3_30
      .long    LBB3_31
      .long    LBB3_32

After:
      adr r12, #LJTI3_0_0
      add pc, r12, +r0, lsl #2
LJTI3_0_0:
      b.w    LBB3_24
      b.w    LBB3_30
      b.w    LBB3_31
      b.w    LBB3_32

This has several advantages.
1. This will make it easier to optimize this to a TBB / TBH instruction +
   (smaller) table.
2. This eliminate the need for ugly asm printer hack to force the address
   into thumb addresses (bit 0 is one).
3. Same codegen for pic and non-pic.
4. This eliminate the need to align the table so constantpool island pass
   won't have to over-estimate the size.

Based on my calculation, the later is probably slightly faster as well since
ldr pc with shifter address is very slow. That is, it should be a win as long
as the HW implementation can do a reasonable job of branch predict the second
branch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77024 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 00:33:29 +00:00
Evan Cheng
49f846805e Add a workaround for Darwin assembler bug where it's not setting the thumb bit in Thumb2 jumptable entries. We now pass Olden.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 18:54:23 +00:00
Evan Cheng
c324ecb7bc Replace use of std::set with SmallPtrSet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76983 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 18:19:46 +00:00
Chris Lattner
c440cc7f2c use section flags more correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76944 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 04:08:17 +00:00
Chris Lattner
fb3431aec5 reduce api exposure: clients shouldn't call SectionKindForGlobal directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76941 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 03:49:17 +00:00
Chris Lattner
40bbebde9d make AsmPrinter::doFinalization iterate over the global variables
and call PrintGlobalVariable, allowing elimination and simplification
of various targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76604 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 18:38:57 +00:00
Bill Wendling
5c0ba804c0 Rename Mangler linkage enums to something less gross.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76456 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20 19:41:27 +00:00
Bill Wendling
3d10a5a757 Add plumbing for the `linker_private' linkage type. This type is meant for
"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76385 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20 01:03:30 +00:00
Daniel Dunbar
4cb1e13769 Put Target definitions inside Target specific header, and llvm namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76344 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18 23:03:22 +00:00
Daniel Dunbar
f05522974b Remove old style hacks to register AsmPrinter into TargetMachine.
- No intended functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75843 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 22:01:32 +00:00
Daniel Dunbar
51b198af83 Reapply TargetRegistry refactoring commits.
--- Reverse-merging r75799 into '.':
 U   test/Analysis/PointerTracking
U    include/llvm/Target/TargetMachineRegistry.h
U    include/llvm/Target/TargetMachine.h
U    include/llvm/Target/TargetRegistry.h
U    include/llvm/Target/TargetSelect.h
U    tools/lto/LTOCodeGenerator.cpp
U    tools/lto/LTOModule.cpp
U    tools/llc/llc.cpp
U    lib/Target/PowerPC/PPCTargetMachine.h
U    lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp
U    lib/Target/PowerPC/PPCTargetMachine.cpp
U    lib/Target/PowerPC/PPC.h
U    lib/Target/ARM/ARMTargetMachine.cpp
U    lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
U    lib/Target/ARM/ARMTargetMachine.h
U    lib/Target/ARM/ARM.h
U    lib/Target/XCore/XCoreTargetMachine.cpp
U    lib/Target/XCore/XCoreTargetMachine.h
U    lib/Target/PIC16/PIC16TargetMachine.cpp
U    lib/Target/PIC16/PIC16TargetMachine.h
U    lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp
U    lib/Target/Alpha/AlphaTargetMachine.cpp
U    lib/Target/Alpha/AlphaTargetMachine.h
U    lib/Target/X86/X86TargetMachine.h
U    lib/Target/X86/X86.h
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.h
U    lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp
U    lib/Target/X86/AsmPrinter/X86IntelAsmPrinter.h
U    lib/Target/X86/X86TargetMachine.cpp
U    lib/Target/MSP430/MSP430TargetMachine.cpp
U    lib/Target/MSP430/MSP430TargetMachine.h
U    lib/Target/CppBackend/CPPTargetMachine.h
U    lib/Target/CppBackend/CPPBackend.cpp
U    lib/Target/CBackend/CTargetMachine.h
U    lib/Target/CBackend/CBackend.cpp
U    lib/Target/TargetMachine.cpp
U    lib/Target/IA64/IA64TargetMachine.cpp
U    lib/Target/IA64/AsmPrinter/IA64AsmPrinter.cpp
U    lib/Target/IA64/IA64TargetMachine.h
U    lib/Target/IA64/IA64.h
U    lib/Target/MSIL/MSILWriter.cpp
U    lib/Target/CellSPU/SPUTargetMachine.h
U    lib/Target/CellSPU/SPU.h
U    lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
U    lib/Target/CellSPU/SPUTargetMachine.cpp
U    lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp
U    lib/Target/Mips/MipsTargetMachine.cpp
U    lib/Target/Mips/MipsTargetMachine.h
U    lib/Target/Mips/Mips.h
U    lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp
U    lib/Target/Sparc/SparcTargetMachine.cpp
U    lib/Target/Sparc/SparcTargetMachine.h
U    lib/ExecutionEngine/JIT/TargetSelect.cpp
U    lib/Support/TargetRegistry.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75820 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 20:24:03 +00:00
Stuart Hastings
2286f8dc4c Revert 75762, 75763, 75766..75769, 75772..75775, 75778, 75780, 75782 to repair broken LLVM-GCC build.
Will revert 75770 in the llvm-gcc trunk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75799 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 17:27:11 +00:00
Daniel Dunbar
4246790aa8 Register Target's TargetMachine and AsmPrinter in the new registry.
- This abuses TargetMachineRegistry's constructor for now, this will get
   cleaned up in time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75762 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 09:22:31 +00:00
Chris Lattner
b1ccad3b0d convert arm/darwin stubs to use the mangler to synthesize all the names instead of
doing it with printSuffixedName.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75741 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 04:41:01 +00:00
Chris Lattner
4fb63d088b fix an arm codegen bug (the same as PR4482 on ppc) where available_externally
symbols were not getting stubs.  While I'm at it, add a big testcase for
stub generation to make sure I don't break anything.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75737 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 04:12:33 +00:00
Chris Lattner
0a2385455b convert [Hidden]GVNonLazyPtrs to compute the global and stub names
with the mangler (like x86 and ppc), instead of going through 
printSuffixedName.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 03:12:43 +00:00
David Greene
71847813bc Have asm printers use formatted_raw_ostream directly to avoid a
dynamic_cast<>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75670 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 20:18:05 +00:00