Commit Graph

11138 Commits

Author SHA1 Message Date
Evan Cheng 056c669e93 Get rid of some more getOpcode calls.
This also fixes potential problems in ARMBaseInstrInfo routines not recognizing thumb1 instructions when 32-bit and 16-bit instructions mix.

llvm-svn: 77218
2009-07-27 18:20:05 +00:00
Mike Stump 447a8f29ef Fix build.
llvm-svn: 77217
2009-07-27 18:18:30 +00:00
Sanjiv Gupta 96b3d4a2f9 Remove duplicate entries while printing decls for external symbols.
Some libcall names are same, so they were getting printed twice.

llvm-svn: 77215
2009-07-27 18:04:34 +00:00
Chris Lattner e48c85fa8b add an explanatory comment about why we drop these in readonly and
not in mergable

llvm-svn: 77210
2009-07-27 17:39:40 +00:00
Chris Lattner 1814e81e17 make COFF work like ELF and macho, by splitting out into its own
header even though there is only one COFF target.

llvm-svn: 77204
2009-07-27 16:45:59 +00:00
Chris Lattner ff1f401f9b don't create default text/data sections for all targets.
llvm-svn: 77203
2009-07-27 16:44:04 +00:00
Chris Lattner e25817a138 Apparently alpha doesn't use ElfTargetAsmInfo (?)
llvm-svn: 77202
2009-07-27 16:42:14 +00:00
David Goodwin 007031d1b4 Thumb-2 does not have RSC.
llvm-svn: 77201
2009-07-27 16:39:05 +00:00
David Goodwin 782f242fd7 Add ".w" suffix for wide thumb-2 instructions.
llvm-svn: 77199
2009-07-27 16:31:55 +00:00
Chris Lattner 543c83e8f2 inline a method.
llvm-svn: 77198
2009-07-27 16:27:32 +00:00
Chris Lattner 3679ad5a77 apparently we have "windows" and "coff", which are different(?)
llvm-svn: 77197
2009-07-27 16:22:39 +00:00
Chris Lattner c51f3394f3 sink text/data section creation down into the target-specific places that
should know about them.  PECoff doesn't share these, and I want all sections
to be created by object-file-specific code.

llvm-svn: 77196
2009-07-27 16:20:58 +00:00
Chris Lattner 469ae8ac54 32-bit darwin targets support .literal16 too.
llvm-svn: 77191
2009-07-27 15:44:04 +00:00
Chris Lattner 86b7255776 Eliminate getNamed/getUnnamedSection, adding a new and unified getOrCreateSection
instead.

llvm-svn: 77186
2009-07-27 06:17:14 +00:00
Chris Lattner 149465ea06 Eliminate SectionFlags, just embed a SectionKind into Section
instead and drive things based off of that.

llvm-svn: 77184
2009-07-27 05:32:16 +00:00
Evan Cheng 371ec9e810 If CPSR is modified but the def is dead, then it's ok to fold the load / store.
llvm-svn: 77182
2009-07-27 04:18:04 +00:00
Evan Cheng c47e109335 Use t2LDRi12 and t2STRi12 to load / store to / from stack frames. Eliminate more getOpcode calls.
llvm-svn: 77181
2009-07-27 03:14:20 +00:00
Sanjiv Gupta c8885129d8 Generate a libcall for i8 multiply.
llvm-svn: 77179
2009-07-27 02:44:46 +00:00
Sanjiv Gupta e334b34bfd fixed incorrect lowering of ISD::SUB node. SUB has only one result value.
It wasn't caught during tests because we never got a sub generated, (i8 was always getting promoted to int, which in turn was broken into subc/sube). Though the optimizer leaves an i8 sub now. 

llvm-svn: 77178
2009-07-27 02:26:06 +00:00
Evan Cheng 186332f898 Use the right instructions to copy between GPR and the more strictive tGPR classes. t2MOV does not match the RC requirements.
llvm-svn: 77175
2009-07-27 00:33:08 +00:00
Evan Cheng 0e5b149930 Merge isLoadFromStackSlot into one since it behaves the same regardless of sub-target.
llvm-svn: 77174
2009-07-27 00:24:36 +00:00
Evan Cheng 26b51b15ed Just use a single isMoveInstr to catch all the cases.
llvm-svn: 77173
2009-07-27 00:05:15 +00:00
Evan Cheng faede73a32 Rename tMOVhi2lor to tMOVgpr2tgpr. It's not moving from a high register to a low register. It's moving from a GPR register class to a more restrictive tGPR class. Also change tMOVlor2hir, and tMOVhir2hir.
llvm-svn: 77172
2009-07-26 23:59:01 +00:00
Chris Lattner 602d44fa70 untangle a TargetAsmInfo hack where ELFTargetAsmInfo would create a
'unnamed' bss section, but some impls would want a named one.  Since
they don't have consistent behavior, just make each target do their
own thing, instead of doing something "sortof common" then having
targets change immutable objects later.

llvm-svn: 77165
2009-07-26 19:23:28 +00:00
Evan Cheng 8953720f23 Refactor. Get rid of a few more getOpcode() calls.
llvm-svn: 77164
2009-07-26 18:55:14 +00:00
Chris Lattner 06ad4948f5 reduce indentation
llvm-svn: 77161
2009-07-26 18:08:15 +00:00
Sanjiv Gupta fc4d4994ee Fix the breakage caused by 76950.
PIC16 has special naming conventions for variables having section names specified via section attribute.

llvm-svn: 77153
2009-07-26 10:25:01 +00:00
Nick Lewycky ec7ec7c1ac Move MSILModule and MSILWriter into the 'llvm' namespace, instead of the 'MSIL'
namespace which could very well conflict with non-LLVM code.

Also clean up some spacing, remove an extra header.

llvm-svn: 77146
2009-07-26 08:16:51 +00:00
Daniel Dunbar 9813b0b025 Eliminate some uses of DOUT, cerr, and getNameStart().
llvm-svn: 77145
2009-07-26 07:49:05 +00:00
Chris Lattner 1db210322a remove a densemap from TargetAsmInfo that was uniquing the targetflags strings,
just use a smallstring instead.

llvm-svn: 77144
2009-07-26 07:33:58 +00:00
Chris Lattner d2e0220cb4 simplify SectionFlagsForGlobal, even though I want to kill it.
llvm-svn: 77143
2009-07-26 07:17:39 +00:00
Chris Lattner 9db3a9286d make SectionKind keep track of whether a global had an explicit
section specified for it or not.

llvm-svn: 77142
2009-07-26 07:14:28 +00:00
Chris Lattner d9951203f0 simplify this code now that SectionKind knows if a global is weak or not.
llvm-svn: 77141
2009-07-26 07:07:01 +00:00
Chris Lattner e45ff5cc2b make SectionKind know whether a symbol is weak or not in addition
to its classification.

llvm-svn: 77140
2009-07-26 07:00:12 +00:00
Chris Lattner 29151b0218 rename Mergable -> Mergeable and Writable -> Writeable
llvm-svn: 77138
2009-07-26 06:48:26 +00:00
Chris Lattner 2d7270d577 remove a bunch of helper functions, just use SectionKind::get instead.
llvm-svn: 77135
2009-07-26 06:34:33 +00:00
Chris Lattner fb6867c7db simplify getSectionForMergableConstant to take a SectionKind.
llvm-svn: 77134
2009-07-26 06:26:55 +00:00
Chris Lattner aae21f4915 precreate 4/8/16 byte mergable sections to simplify code.
llvm-svn: 77133
2009-07-26 06:16:11 +00:00
Chris Lattner 911e2b8649 introduce specialized mergable const sectionkinds for elements of size 4/8/16 to
simplify targets.

llvm-svn: 77132
2009-07-26 06:11:33 +00:00
Chris Lattner 6194637d66 improve the default impl of getSectionForMergableConstant by
putting readonly constants in the readonly section if we have one.

llvm-svn: 77131
2009-07-26 05:57:07 +00:00
Chris Lattner 1e76db06b9 make elf targets correctly handle constant pool entries that require relocations.
llvm-svn: 77130
2009-07-26 05:55:20 +00:00
Chris Lattner 1d68bd7f97 Rearrange all the SectionKinds and structure them into a hierarchical
group instead of a bunch of random unrelated ideas.  Provide predicates
to categorize a SectionKind into a group, and use them instead of 
getKind() throughout the code.

This also renames a ton of SectionKinds to be more consistent and
evocative, and adds a huge number of comments on the enums so that
I will hopefully be able to remember how this stuff works long from
now.

llvm-svn: 77129
2009-07-26 05:44:20 +00:00
Daniel Dunbar ee01b242e8 Factor commonality in triple match routines into helper template for registering
classes, and migrate existing targets over.

llvm-svn: 77126
2009-07-26 05:03:33 +00:00
Chris Lattner 8e58bc9ed4 put normal data into .data instead of .data.rel on elf systems.
llvm-svn: 77116
2009-07-26 03:06:11 +00:00
Daniel Dunbar bc981d8efa Kill Target specific ModuleMatchQuality stuff.
- This was overkill and inconsistently implemented.

llvm-svn: 77114
2009-07-26 02:22:58 +00:00
Daniel Dunbar 47d679151b Add TargetRegistry::lookupTarget.
- This is a simplified mechanism which just looks up a target based on the
   target triple, with a few additional flags.

 - Remove getClosestStaticTargetForModule, the moral equivalent is now:
     lookupTarget(Mod->getTargetTriple, true, false, ...);

 - This no longer does the fuzzy matching with target data (based on endianness
   and pointer width) that getClosestStaticTargetForModule was doing, but this
   was deemed unnecessary.

llvm-svn: 77111
2009-07-26 02:12:58 +00:00
Chris Lattner 3092b82255 eliminate a pointless switch stmt.
llvm-svn: 77110
2009-07-26 01:44:55 +00:00
Chris Lattner 397792d981 finish simplifying DarwinTargetAsmInfo::SelectSectionForGlobal
for now.  Make the section switching directives more consistent
by not including \n and including \t for them all.

llvm-svn: 77107
2009-07-26 01:24:18 +00:00
Chris Lattner 5b42b45fb9 simplify DarwinTargetAsmInfo::SelectSectionForGlobal a bit
and make it more aggressive, we now put:

const int G2 __attribute__((weak)) = 42;

into the text (readonly) segment like gcc, previously we put
it into the data (readwrite) segment.

llvm-svn: 77104
2009-07-26 00:51:36 +00:00
Bob Wilson 8a37bbebfd Add support for ARM Neon VREV instructions.
Patch by Anton Korzh, with some modifications from me.

llvm-svn: 77101
2009-07-26 00:39:34 +00:00
Daniel Dunbar e03eecb75f Remove Value::{isName, getNameRef}.
Also, change MDString to use a StringRef.

llvm-svn: 77098
2009-07-25 23:55:21 +00:00
Chris Lattner 0af00396a7 make SectionKind be a first-class pod struct instead of just
an enum.

llvm-svn: 77096
2009-07-25 23:21:55 +00:00
Chris Lattner 60f3b73e11 this is (unfortunately) several changes mixed together:
1. Spell SectionFlags::Writeable as "Writable".
2. Add predicates for deriving SectionFlags from SectionKinds.
3. Sink ELF-specific getSectionPrefixForUniqueGlobal impl into
   ELFTargetAsmInfo.
4. Fix SectionFlagsForGlobal to know that BSS/ThreadBSS has the
   BSS bit set (the real fix for PR4619).
5. Fix isSuitableForBSS to not put globals with explicit sections
   set in BSS (which was the reason #4 wasn't fixed earlier).
6. Remove my previous hack for PR4619.

llvm-svn: 77085
2009-07-25 18:57:34 +00:00
Chris Lattner 7b5e51091e document some invariants.
llvm-svn: 77084
2009-07-25 18:11:58 +00:00
Chris Lattner 2de9510572 add the most expedient hack to fix PR4619, along with a testcase.
Thanks to Rafael for the great example.

llvm-svn: 77083
2009-07-25 17:57:37 +00:00
Daniel Dunbar 691a4784db Simplify JIT target selection.
- Instead of requiring targets to define a JIT quality match function, we just
   have them specify if they support a JIT.

 - Target selection for the JIT just gets the host triple and looks for the best
   target which matches the triple and has a JIT.

llvm-svn: 77060
2009-07-25 10:09:50 +00:00
Sanjiv Gupta b6ee0b1d9b Mark attributes of return insn correctly. It was being assumed safe to delete in isSafeToDelete (a thing checked-in 76281).
llvm-svn: 77056
2009-07-25 07:48:53 +00:00
Daniel Dunbar 5680b4f285 Add new helpers for registering targets.
- Less boilerplate == good.

llvm-svn: 77052
2009-07-25 06:49:55 +00:00
Evan Cheng ea23c3ba46 80 col violation.
llvm-svn: 77041
2009-07-25 01:55:25 +00:00
Evan Cheng c1a5cfa9a0 Get rid of a couple of unnecessary getOpcode calls.
llvm-svn: 77035
2009-07-25 01:25:08 +00:00
Evan Cheng b2c22f00de Another TODO.
llvm-svn: 77026
2009-07-25 00:39:37 +00:00
Evan Cheng f3a1fce8ae 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.

llvm-svn: 77024
2009-07-25 00:33:29 +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
Evan Cheng f297256136 ARM code emitter can't handle Thumb2 instructions yet. So don't even try.
llvm-svn: 77018
2009-07-25 00:13:11 +00:00
Daniel Dunbar 15d3967f92 Fix build for GCC 4.0?
llvm-svn: 77016
2009-07-24 23:42:33 +00:00
Daniel Dunbar b2dc296910 Fix compile with 4.4 (I hope?); PR4617.
llvm-svn: 77015
2009-07-24 23:23:46 +00:00
Owen Anderson edb4a70325 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
llvm-svn: 77011
2009-07-24 23:12:02 +00:00
Evan Cheng c64ce30c67 Uh. It would be useful to actually print the operand.
llvm-svn: 77004
2009-07-24 20:47:38 +00:00
Chris Lattner 70fa4661eb fix some predicates
llvm-svn: 76999
2009-07-24 20:27:11 +00:00
Chris Lattner a39aaa5fd5 change SectionKindForGlobal from being a public (and
previously virtual) function to being a static function
in the .cpp file.

llvm-svn: 76997
2009-07-24 20:14:10 +00:00
Evan Cheng c26c76ec1d Disable my constant island pass optimization (to make use soimm more effectively). It caused infinite looping on lencod.
llvm-svn: 76995
2009-07-24 19:31:03 +00:00
Chris Lattner 708e559247 make SectionKindForGlobal target independent, and therefore non-virtual.
It's classifications now include elf-specific discriminators.  Targets
that don't have these features (like darwin and pecoff) simply treat
data.rel like data, etc.

llvm-svn: 76993
2009-07-24 19:15:47 +00:00
Evan Cheng 5a49c54061 Add a workaround for Darwin assembler bug where it's not setting the thumb bit in Thumb2 jumptable entries. We now pass Olden.
llvm-svn: 76991
2009-07-24 18:54:23 +00:00
Chris Lattner 73f6651439 we already know the sectionkind when invoking SelectSectionForGlobal,
pass it in instead of recomputing it.

llvm-svn: 76990
2009-07-24 18:42:53 +00:00
Chris Lattner bf9ac228f7 make SectionForGlobal non-virtual, add a hook for pic16 to do its "address=" hack.
llvm-svn: 76989
2009-07-24 18:34:27 +00:00
Evan Cheng 666c912ce3 Make sure thumb2 jumptable entries are aligned.
llvm-svn: 76986
2009-07-24 18:20:44 +00:00
Evan Cheng 886f303480 Clean up.
llvm-svn: 76984
2009-07-24 18:20:16 +00:00
Evan Cheng 986fc8e74b Replace use of std::set with SmallPtrSet.
llvm-svn: 76983
2009-07-24 18:19:46 +00:00
Chris Lattner b68b506d84 start refactoring pic16 section selection logic.
llvm-svn: 76977
2009-07-24 17:13:27 +00:00
Chris Lattner 9b6370d230 move ELF-specific code into ELFTargetAsmInfo.
llvm-svn: 76976
2009-07-24 17:02:17 +00:00
Chris Lattner b6974c86f5 tidy up
llvm-svn: 76975
2009-07-24 16:53:52 +00:00
Chris Lattner 26f704669c split the ELF-specific section flag inference-from-name code out
into its own helper function.

llvm-svn: 76974
2009-07-24 16:50:24 +00:00
Chris Lattner a5ca93cdd5 make SectionFlagsForGlobal a private static function instead of a public
virtual one.

llvm-svn: 76973
2009-07-24 16:46:50 +00:00
Chris Lattner 552b407f8f move a method up in the file, GV is always non-null, so remove a check.
llvm-svn: 76972
2009-07-24 16:44:01 +00:00
Chris Lattner b34d0a2fcb There is no need to pass the name into lib/Target/TargetAsmInfo.cpp
when we have a global with no section explicitly specified.

llvm-svn: 76971
2009-07-24 16:40:45 +00:00
Daniel Dunbar 555d1001d5 Another getName -> getNameStr
llvm-svn: 76967
2009-07-24 12:21:08 +00:00
Daniel Dunbar 12368685d8 Switch to getNameStr().
llvm-svn: 76962
2009-07-24 08:24:36 +00:00
Eli Friedman 95fc6ee51a Remove unused member functions.
llvm-svn: 76960
2009-07-24 07:43:59 +00:00
Chris Lattner dd2096898b hoist section name uniquing logic up to the top-level SectionForGlobal
implementation, eliminating a dupe.

llvm-svn: 76953
2009-07-24 05:10:25 +00:00
Chris Lattner c21c02aacd reduce indentation
llvm-svn: 76951
2009-07-24 05:01:55 +00:00
Chris Lattner ddf377df1a simplify code by making special case more obvious
llvm-svn: 76950
2009-07-24 04:59:43 +00:00
Chris Lattner ab0c0ef515 the 'isWeakForLinker' code is common between functions and globals, hoist it
and simplify some other code.

llvm-svn: 76949
2009-07-24 04:52:38 +00:00
Chris Lattner 0f5ebf5509 Replace UniqueSectionForGlobal with getSectionPrefixForUniqueGlobal.
The later doesn't depend on any crazy LLVM IR stuff, and this
pulls the concatenation of prefix with GV name (the root problem behind
PR4584) out one level.

llvm-svn: 76948
2009-07-24 04:49:34 +00:00
Chris Lattner 37e311a570 fix indentation.
llvm-svn: 76945
2009-07-24 04:11:40 +00:00
Chris Lattner 1553fdee55 use section flags more correctly.
llvm-svn: 76944
2009-07-24 04:08:17 +00:00
Chris Lattner 53f92dc95b fix a mysterious and scary failure on test/CodeGen/X86/cstring.ll
llvm-svn: 76942
2009-07-24 03:55:48 +00:00
Chris Lattner 07bd1cd8c5 reduce api exposure: clients shouldn't call SectionKindForGlobal directly.
llvm-svn: 76941
2009-07-24 03:49:17 +00:00
Chris Lattner 5cd4dd391f make Constant::getRelocationInfo return an enum, as suggested by Duncan.
llvm-svn: 76938
2009-07-24 03:27:21 +00:00
Chris Lattner 74b8117134 remove more bits of small section support.
llvm-svn: 76937
2009-07-24 03:16:53 +00:00
Chris Lattner bc63d8bfbf remove more remnants of small section support.
llvm-svn: 76936
2009-07-24 03:14:35 +00:00
Chris Lattner 26aff56462 Remove SectionKind::Small*. This was only used on mips, and is apparently
a sad mistake that is regretted. :)

llvm-svn: 76935
2009-07-24 03:11:51 +00:00
Evan Cheng c3259f3ffb Thumb2 should use the register scavenger.
llvm-svn: 76930
2009-07-24 01:05:51 +00:00
Evan Cheng 6cfbe61361 FLDD, FLDS, FCPYD, FCPYS, FSTD, FSTS, VMOVD, VMOVQ maps to the same instructions on all sub-targets.
llvm-svn: 76925
2009-07-24 00:53:56 +00:00
Eric Christopher f37ea3ad75 Update insertps handling based on feedback. Move to a v4f32 style
to support vector arguments and scalar arguments correctly. Update
lowering and fix comment to refer to pinsr* instead of insertps.

llvm-svn: 76921
2009-07-24 00:33:09 +00:00
Dan Gohman 17151155ed Remove the IA-64 backend.
llvm-svn: 76920
2009-07-24 00:30:09 +00:00
David Goodwin cdd405d804 Correctly handle the Thumb-2 imm8 addrmode. Specialize frame index elimination more exactly for Thumb-2 to get better code gen.
llvm-svn: 76919
2009-07-24 00:16:18 +00:00
Sean Callanan 8ce4021a40 Added a 2+-byte NOP instruction to the Intel tables,
for the assembler/disassembler to use.

llvm-svn: 76914
2009-07-23 23:39:34 +00:00
Evan Cheng dc99f07113 Thumb2 does not allow the use of "pc" register as part of the load / store address.
llvm-svn: 76909
2009-07-23 23:09:51 +00:00
Duncan Sands f4981105ca Revert r75581: it causes massive breakage in the Ada
testsuite, due to exception handling not working
correctly.  Maybe because the libgcc unwinder is
miscompiled - not sure, and I won't have time to
look into it before leaving on holiday.  Note that
miscompilations of libgcc are not picked up by the
nightly testers, because they dynamically link with
libgcc, so pick up the system version rather than
the version built as part of llvm-gcc.  This is a
nasty flaw in the nightly testers.  (On the other
hand the Ada testsuite links with the just built
libgcc).

llvm-svn: 76895
2009-07-23 19:00:02 +00:00
Evan Cheng d2919a1773 Fix up ARM constant island pass for Thumb2.
Also fixed up code to fully use the SoImm field for ADR on ARM mode.

llvm-svn: 76890
2009-07-23 18:27:47 +00:00
Evan Cheng 95a73e2eab Since we have moved unified assembly, switch to ADR instruction instead of a the difficult-to-read .set + add syntax to materialize pc-relative address.
Turns out this also fixed a poor code selection on Thumb1. I have no idea why we were using a mov + add to do the same thing as ADR before.

llvm-svn: 76889
2009-07-23 18:26:03 +00:00
David Goodwin 6deba28c6f Fix frame index elimination to correctly handle thumb-2 addressing modes that don't allow negative offsets. During frame elimination convert *i12 opcode to a *i8 when necessary due to a negative offset.
llvm-svn: 76883
2009-07-23 17:06:46 +00:00
Evan Cheng edda8cbfad 80 col violation.
llvm-svn: 76872
2009-07-23 07:58:08 +00:00
Eric Christopher b1b77ca862 Support insertps via the intrinsic and add a couple of simple
testcases to make sure it's being generated.

llvm-svn: 76843
2009-07-23 02:22:41 +00:00
Sanjiv Gupta 56df1e7969 Do not call getMangledName on Intrinsics.
llvm-svn: 76842
2009-07-23 02:11:04 +00:00
Chris Lattner d2aeef0703 remove SectionFlags::Small: it is only used on Xcore, and we'll find
a better solution for it in the future.

llvm-svn: 76818
2009-07-22 23:27:22 +00:00
Dan Gohman 824ab40381 x86 isel tweak: use lea (%reg,%reg) instead of lea (,%reg,2).
llvm-svn: 76817
2009-07-22 23:26:55 +00:00
David Goodwin a0b2dc93b5 Fix typo in addrmode definition.
llvm-svn: 76806
2009-07-22 22:24:31 +00:00
Evan Cheng e270d4a4dd Use getTargetConstant instead of getConstant since it's meant as an constant operand.
llvm-svn: 76803
2009-07-22 22:03:29 +00:00
Daniel Dunbar 5899dda08c Switch some clients to Value::getName(), and other getName() user
simplification.
 - NFC

llvm-svn: 76789
2009-07-22 21:33:09 +00:00
Daniel Dunbar 99abb47dd6 Simplify some uses of Value::getName()
llvm-svn: 76786
2009-07-22 21:10:12 +00:00
Daniel Dunbar ed1c14ba65 Fix indentation.
llvm-svn: 76778
2009-07-22 20:26:37 +00:00
Evan Cheng 1ec4396ee3 Eliminate a redudant check Eli pointed out.
llvm-svn: 76762
2009-07-22 18:08:05 +00:00
Chris Lattner 637ca93fc4 doxygenify
llvm-svn: 76750
2009-07-22 16:53:56 +00:00
Richard Osborne 4f7f19a7c0 Thread local globals don't require special handling by the linker and so can
be placed in the standard data / bss sections.

llvm-svn: 76735
2009-07-22 11:01:00 +00:00
Duncan Sands 0cf7f5d6d2 Revert commit 76707, it was breaking the llvm-gcc build
on linux platforms.  The binutils assembler does not
recognize the "s" flag, see for example
http://sourceware.org/binutils/docs/as/Section.html 

llvm-svn: 76733
2009-07-22 10:35:05 +00:00
Evan Cheng 4b02b2f79c Don't forget D16 - D31 are clobbered by calls and sjlj eh.
llvm-svn: 76729
2009-07-22 06:46:53 +00:00
Evan Cheng 6253a19651 Add R12 to the list of registers clobbered by 16-bit Thumb calls as a pre-caution. r12 could be live once we have mixed 32-bit and 16-bit instructions.
llvm-svn: 76728
2009-07-22 06:37:28 +00:00
Evan Cheng eadb6681cf Fix a obvious copy-n-paste bug.
llvm-svn: 76727
2009-07-22 06:12:40 +00:00
Evan Cheng 2e1d66847c Get rid one of the getRegisterNumbering. Also add D16 - D31.
llvm-svn: 76725
2009-07-22 05:55:18 +00:00
Eli Friedman caccc0081a Add support for MMX VSETCC.
llvm-svn: 76713
2009-07-22 01:06:52 +00:00
Sean Callanan 5e4755943e Added the unconditional JMP with an 8-bit relocation for the
assembler / disassembler.

llvm-svn: 76712
2009-07-22 01:05:20 +00:00
Evan Cheng c7a243dfdd Add an entry.
llvm-svn: 76711
2009-07-22 00:58:27 +00:00
Chris Lattner fd164b863f inline the two MergeableConstSection implementations into their
only caller.

llvm-svn: 76710
2009-07-22 00:47:11 +00:00
Chris Lattner 8ebaec6b27 set the ELF "small" flag on objects that end up in .rodata.cst4 consistently,
updating a mips testcase to expect it.

llvm-svn: 76707
2009-07-22 00:41:56 +00:00
Chris Lattner fab2059d0e don't set the small flag yet.
llvm-svn: 76706
2009-07-22 00:30:39 +00:00
Chris Lattner b300a4f988 remove the SelectSectionForMachineConst hook, replacing it with
a new getSectionForMergableConstant hook.  This removes one dependence
of TAI on Type, and provides the hook with enough info to make the 
right decision based on whether the global has relocations etc.

llvm-svn: 76705
2009-07-22 00:28:43 +00:00
Evan Cheng 4dc848f3e8 Let each target determines whether a machine instruction is dead. If true, that allows late codeine passes to delete it.
This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround.

llvm-svn: 76703
2009-07-22 00:25:27 +00:00
Owen Anderson 47db941fd3 Get rid of the Pass+Context magic.
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
Chris Lattner 4565ef5b65 reimplement Constant::ContainsRelocations as
Constant::getRelocationInfo(), which has a much simpler
to use API.  It still should not be part of libvmcore, but
is better than it was.  Also teach it to be smart about 
hidden visibility.

llvm-svn: 76700
2009-07-22 00:05:44 +00:00
Evan Cheng 87aaa194f9 Fixing cp island pass. Step 1: Determine whether the constant pool offset can be
negative on an individual bases rather than basing on whether it's in thumb
mode.

llvm-svn: 76698
2009-07-21 23:56:01 +00:00
Evan Cheng f206d925a5 Fix comment.
llvm-svn: 76693
2009-07-21 23:54:22 +00:00
Chris Lattner aa17ab0669 simplify code now that it is inlined.
llvm-svn: 76689
2009-07-21 23:49:55 +00:00
Chris Lattner e61aff6df1 Now that RelocBehaviour() is never overloaded, it doesn't need to be
virtual.  Just inline it into its two current call sites in preparation
for simplifying the code.

llvm-svn: 76686
2009-07-21 23:47:11 +00:00
Chris Lattner bc2482a0a4 this doesn't break any of the 4 ia64 tests.
llvm-svn: 76683
2009-07-21 23:42:24 +00:00
Chris Lattner e41745f837 alpha doesn't need to redefine this: it only supports PIC codegen anyway.
llvm-svn: 76682
2009-07-21 23:41:35 +00:00
Chris Lattner 9bd736e2f7 no really, I can spell!
llvm-svn: 76679
2009-07-21 23:36:01 +00:00
Chris Lattner cfb01e26bc add an API so target-independent codegen can determine if a constant
pool entry will require relocations against it.  I implemented this
conservatively for ARM, someone who is knowledgable about it should
see if this can be improved.

llvm-svn: 76678
2009-07-21 23:34:23 +00:00
Chris Lattner 0ecf7b6f4a remove the last bits of SectionFlagsForGlobal. There is some flag here that
depends on XS1A, but I think the ReadOnlySection is already set up for this
and there is no testcase that this breaks.  If this is really needed, we can
add the appropriate parameterization to TargetAsmInfo in the future to support
this.

llvm-svn: 76667
2009-07-21 22:42:37 +00:00
Chris Lattner bf4bc25236 don't mask out the small flag and then reapply it later.
llvm-svn: 76666
2009-07-21 22:39:28 +00:00
Chris Lattner 684d5fe95d if Xcore doesn't support TLS, it doesn't have to worry about thread local LLVM IR, it should be rejected by a front-end.
llvm-svn: 76665
2009-07-21 22:37:38 +00:00
Chris Lattner 43893573f4 remove the Xcore implementation of SelectSectionForGlobal. While you have
to twist your brain to see it, I believe it is the same as ELFTargetAsmInfo::SelectSectionForGlobal.

llvm-svn: 76664
2009-07-21 22:36:53 +00:00
Chris Lattner 83e6f9370d simplify based on the fact that darwin always uses L/l.
llvm-svn: 76662
2009-07-21 22:32:55 +00:00
Chris Lattner 5626b88047 make some stuff private.
llvm-svn: 76661
2009-07-21 22:30:39 +00:00
Chris Lattner aa30d25bb4 Remove the XCore custom implementation of MergeableConstSection, relying on
the generic ELF version instead.  This will result in its mergable constant
sections getting named ".rodata.cst4" instead of ".cp.const4", but the
linker looks at the section flags, not the name of the section AFAICT.

llvm-svn: 76659
2009-07-21 22:25:52 +00:00
Chris Lattner 4d5c3b2e86 inline a trivial method into its only call site and fix indentation of cases
llvm-svn: 76654
2009-07-21 21:29:08 +00:00
Chris Lattner fd047e11a1 Remove some overridden functions in XCoreTargetAsmInfo that are
implemented exactly the same way as its ELFTargetAsmInfo subclass 
has them.

llvm-svn: 76653
2009-07-21 21:26:32 +00:00
Chris Lattner c21954dff6 minor cleanups.
llvm-svn: 76645
2009-07-21 21:09:35 +00:00
Eli Friedman 1f74b1fdfd Missed a piece of the commit to remove the shift flavor.
llvm-svn: 76635
2009-07-21 20:15:24 +00:00
Eli Friedman da9eda8ef6 Remove shift amount flavor. It isn't actually complete enough to
be useful, and it's currently unused.  (Some issues: it isn't actually 
rich enough to capture the semantics on many architectures, and
semantics can vary depending on the type being shifted.)

llvm-svn: 76633
2009-07-21 20:12:16 +00:00
Eli Friedman 1e08ca7313 Remove a couple of already-implemented notes.
llvm-svn: 76631
2009-07-21 20:05:43 +00:00
Evan Cheng 18e32946f8 Add fake v7 itineraries for now.
llvm-svn: 76612
2009-07-21 18:54:14 +00:00
Chris Lattner 100865e59d make AsmPrinter::doFinalization iterate over the global variables
and call PrintGlobalVariable, allowing elimination and simplification
of various targets.

llvm-svn: 76604
2009-07-21 18:38:57 +00:00
Evan Cheng 38e88cb53f Do not select tSXTB / tSXTH in thumb2 mode.
llvm-svn: 76600
2009-07-21 18:15:26 +00:00
Chris Lattner f5f5880c5a reduce indentation by using an early exit.
llvm-svn: 76596
2009-07-21 17:59:36 +00:00
Ted Kremenek d0014cf36d Update CMake files.
llvm-svn: 76595
2009-07-21 17:43:20 +00:00
Chris Lattner 767e90ef30 whitespace cleanups, make the MipsAsmPrinter::doInitialization
chain to the super class instead of initializing mangler directly.
This gives it .file and module level inline asm support among other
things.

llvm-svn: 76593
2009-07-21 17:39:48 +00:00
Chris Lattner 249df80306 fix Sparc, SystemZ, and MSP430 to not override AsmPrinter::doInitialization.
This eliminates redundancy setting up the mangler and adds support to them
for module-level inline asm and a .file directive.

llvm-svn: 76592
2009-07-21 17:37:35 +00:00
Chris Lattner 1177cee9dc Rename LessPrivateGlobalPrefix -> LinkerPrivateGlobalPrefix to match the
LLVM IR concept.

llvm-svn: 76590
2009-07-21 17:30:51 +00:00
Chris Lattner ca8192744a fix indentation
llvm-svn: 76587
2009-07-21 17:25:13 +00:00
Chris Lattner b43f7cba73 remove an unneeded override.
llvm-svn: 76586
2009-07-21 17:23:41 +00:00
Chris Lattner ecaf7dedd2 more random whitespace cleanup, eliminate #define, avoid copying
vectors needlessly, doxygenify comments, improve constness, etc.

llvm-svn: 76585
2009-07-21 17:20:18 +00:00
Chris Lattner 0e6e8cb590 some simple whitespace cleanup, avoid copying vectors for no reason
as much, etc.

llvm-svn: 76578
2009-07-21 16:44:47 +00:00
Daniel Dunbar f477ac5655 Add missing include.
llvm-svn: 76555
2009-07-21 08:58:44 +00:00
Daniel Dunbar d08978cb43 Switch this API to StringRef.
llvm-svn: 76554
2009-07-21 08:57:31 +00:00
Daniel Dunbar 0ecb504508 Remove some unused code.
llvm-svn: 76541
2009-07-21 07:08:59 +00:00
Bruno Cardoso Lopes 12e543228d Support adding relocations for data sections, handling the cases where
global declared symbols are initialized with references from other global
symbols.

llvm-svn: 76540
2009-07-21 06:51:32 +00:00
Evan Cheng 715e6c0a0f Add jumps with 8-bit relocation for assembler / disassembler. Patch by Sean Callanan.
llvm-svn: 76536
2009-07-21 06:00:18 +00:00
Bill Wendling a8e2ad3e3c Add the following functions:
- SYSCALL (normal fast system call instruction) [0f 05]
- SYSENTER (system call entry instruction) [0f 34]
- SYSEXIT (system call exit instruction) [0f 35]
- SYSEXIT64 (system call exit instruction to 64-bit user code) [REX.W 0f 35]
- SYSRET (system call return instruction) [0f 07]

Patch by Sean Callanan.

llvm-svn: 76528
2009-07-21 01:07:24 +00:00
Evan Cheng 0d8b0cf3b8 Fix ARM isle code that optimize multiply by constants which are power-of-2 +/- 1.
llvm-svn: 76520
2009-07-21 00:31:12 +00:00
Dale Johannesen 68cb8d0310 revert 76503 while I figure out what's going on
llvm-svn: 76517
2009-07-21 00:12:29 +00:00
Dale Johannesen a2d2adfa4e Make sure a global matching asm 'i' constraint gets its
flags set properly.  (hasMemory is clearly irrelevant
when matching 'i', I don't understand what this was
supposed to be doing.)
gcc.apple/asm-block-25.c (test passed before by
accident, but generated code was wrong)

llvm-svn: 76503
2009-07-20 23:39:13 +00:00
Chris Lattner 2cd8f753c0 clean up some formatting, indent by 2 instead of 4.
llvm-svn: 76490
2009-07-20 22:23:48 +00:00
David Goodwin 711b9e809c CMP and TST define CPSR, not use it.
llvm-svn: 76489
2009-07-20 22:13:31 +00:00
David Greene 40c68ad3bb Re-apply 75490, 75806 and 76177 with fixes and tests. Efficiency comes
next.

llvm-svn: 76486
2009-07-20 22:02:59 +00:00
Bill Wendling d04f088345 Simplify the code in DarwinTargetAsmInfo::emitUsedDirectiveFor so that humans can understand it.
llvm-svn: 76480
2009-07-20 21:38:26 +00:00
Bill Wendling dde1a8eef4 Pass in the unfortunately named "LessPrivatePrefix" for the
"LinkerPrivatePrefix". It seems to have been used in only one place before I
started this "linker_private" business. I'm thinking that a rename is in
order...

llvm-svn: 76479
2009-07-20 21:30:28 +00:00
Daniel Dunbar 2b11c7de4a Add MCAsmLexer interface.
- This provides the AsmLexer interface to the target specific assembly parsers.

llvm-svn: 76460
2009-07-20 20:01:54 +00:00
Evan Cheng 027d9f93ea Fix some sub-reg coalescing bugs where the coalescer wasn't updating the resulting interval's register class.
llvm-svn: 76458
2009-07-20 19:47:55 +00:00
Bill Wendling 1bcfbff7af Rename Mangler linkage enums to something less gross.
llvm-svn: 76456
2009-07-20 19:41:27 +00:00
Daniel Dunbar 3c2a893ac7 Add MCAsmParser interface.
- This provides the AsmParser interface to the target specific assembly
   parsers.

llvm-svn: 76453
2009-07-20 18:55:04 +00:00
Chris Lattner 6b1be83937 remove TargetAsmInfo::ExpandInlineAsm
llvm-svn: 76445
2009-07-20 17:59:32 +00:00
Chris Lattner 5849d22bd1 Copy ExpandInlineAsm to TargetLowering from TargetAsmInfo.
llvm-svn: 76441
2009-07-20 17:51:36 +00:00
Chris Lattner d290543332 rename TargetAsmInfo::getASDirective -> getDataASDirective
llvm-svn: 76431
2009-07-20 17:12:46 +00:00
David Goodwin 802a0b576f Use t2LDRri12 for frame index loads.
llvm-svn: 76424
2009-07-20 15:55:39 +00:00
Bruno Cardoso Lopes 447b7fd4bb For PC relative relocations where symbols are defined in the same section they
are referenced, ignore the relocation entry and patch the relocatable field with
the computed symbol offset directly

llvm-svn: 76414
2009-07-20 08:52:02 +00:00
Evan Cheng fa60698c29 Fix PR4567. Thumb1 target was using the wrong instruction to handle sp = sub fp, #c.
llvm-svn: 76401
2009-07-20 06:59:32 +00:00
Evan Cheng d214b72962 Model fpscr to prevent fcmped / fcmpezs etc from being deleted.
llvm-svn: 76390
2009-07-20 02:12:31 +00:00
Bill Wendling a3c6f6bffa 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.

llvm-svn: 76385
2009-07-20 01:03:30 +00:00
Daniel Dunbar 88f35c870b CMake support for SystemZ.
llvm-svn: 76384
2009-07-20 00:24:17 +00:00