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Author SHA1 Message Date
Chris Lattner
37088b3f82 make SectionKind keep track of whether a global had an explicit 
section specified for it or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77142 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 07:14:28 +00:00
Chris Lattner
2b421dad78 simplify this code now that SectionKind knows if a global is weak or not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77141 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 07:07:01 +00:00
Chris Lattner
4c50922f6b make SectionKind know whether a symbol is weak or not in addition 
to its classification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77140 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 07:00:12 +00:00
Chris Lattner
37939c910f Make the kind actually be private. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77139 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 06:51:27 +00:00
Chris Lattner
2ceb60a677 rename Mergable -> Mergeable and Writable -> Writeable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77138 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 06:48:26 +00:00
Chris Lattner
94809c3b10 two files I missed in the last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77137 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 06:36:20 +00:00
Chris Lattner
2c5815d090 remove a bunch of helper functions, just use SectionKind::get instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77135 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 06:34:33 +00:00
Chris Lattner
5c2f789952 simplify getSectionForMergableConstant to take a SectionKind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77134 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 06:26:55 +00:00
Chris Lattner
f15327290e precreate 4/8/16 byte mergable sections to simplify code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77133 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 06:16:11 +00:00
Chris Lattner
8ca520944e introduce specialized mergable const sectionkinds for elements of size 4/8/16 to 
simplify targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77132 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 06:11:33 +00:00
Chris Lattner
7f88a20f67 improve the default impl of getSectionForMergableConstant by 
putting readonly constants in the readonly section if we have one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77131 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 05:57:07 +00:00
Chris Lattner
af89a96c6b make elf targets correctly handle constant pool entries that require relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77130 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 05:55:20 +00:00
Chris Lattner
e346e180f3 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77129 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 05:44:20 +00:00
Daniel Dunbar
d6b06b1f36 Update target registration description in Writing An LLVM Backend, and add 
a mention in release notes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77128 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 05:41:39 +00:00
Daniel Dunbar
77454a2105 Sort list of targets in --version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77127 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 05:09:50 +00:00
Daniel Dunbar
8977d087c6 Factor commonality in triple match routines into helper template for registering 
classes, and migrate existing targets over.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77126 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 05:03:33 +00:00
Daniel Dunbar
8c2f1d7e44 Oops, forgot XCore. Sorry XCore! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77125 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 04:52:45 +00:00
Daniel Dunbar
6337f15b5a Update for API change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77124 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 04:23:03 +00:00
Chris Lattner
38b77f8c93 fix isReadOnly predicate to not include data that has to be 
writable because of teh dynamic linker.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77122 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 04:18:10 +00:00
Chris Lattner
f276990625 remove a dead enum case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77121 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 04:09:02 +00:00
Daniel Dunbar
a14d225ef4 Update Triple to use StringRef/Twine based APIs. 
- This is now shorter, simpler, safer, and more efficient, what a deal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77119 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 03:31:47 +00:00
Daniel Dunbar
d61918fc68 Add StringRef::{slice, split}, two convenient string operations which are simple 
and efficient on a StringRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77117 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 03:18:15 +00:00
Chris Lattner
abb477f663 put normal data into .data instead of .data.rel on elf systems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77116 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 03:06:11 +00:00
Daniel Dunbar
ad6c1539cd Remove unused header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77115 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 02:23:52 +00:00
Daniel Dunbar
fa27ff296d Kill Target specific ModuleMatchQuality stuff. 
- This was overkill and inconsistently implemented.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77114 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 02:22:58 +00:00
Daniel Dunbar
a5881e3060 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77111 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 02:12:58 +00:00
Chris Lattner
13b9251eb1 eliminate a pointless switch stmt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77110 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 01:44:55 +00:00
Chris Lattner
30c4a3b9a8 finish simplifying DarwinTargetAsmInfo::SelectSectionForGlobal 
for now.  Make the section switching directives more consistent
by not including \n and including \t for them all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77107 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 01:24:18 +00:00
Daniel Dunbar
c993250dd2 Some clients rely on getName{Start,End} not returning 0, even if the length is 
0.
 - I could have swore the prev change went through a make check cycle...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77106 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 01:04:10 +00:00
Daniel Dunbar
499027fb48 Rewrite getName{Start,End,Len} in terms of getName(), instead of vice-versa. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77105 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 00:51:56 +00:00
Chris Lattner
e3577da6d9 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77104 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 00:51:36 +00:00
Chris Lattner
d601239833 simplify some predicates, add isMergableString() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77103 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 00:50:43 +00:00
Daniel Dunbar
07f6903cbe Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77102 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 00:42:33 +00:00
Bob Wilson
8bb9e48752 Add support for ARM Neon VREV instructions. 
Patch by Anton Korzh, with some modifications from me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77101 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 00:39:34 +00:00
Daniel Dunbar
3f53fa9a51 Remove Value::setName(const char*, unsigned). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77100 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 00:34:27 +00:00
Daniel Dunbar
d1319ef308 Remove Value::setName(const char*). 
- Split into a separate patch because there is a slight functionality change,
   it is no longer valid to call setName(0), which was equivalent to
   setName(""). I'm hoping no one depends on this...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77099 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 00:17:14 +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
Chris Lattner
460d51e0c0 make SectionKind be a first-class pod struct instead of just 
an enum.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77096 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 23:21:55 +00:00
Reid Kleckner
7d509134dc Added a test and fixed a bug in BumpPtrAllocator relating to large alignment 
values.  Hopefully this fixes PR4622.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77088 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 21:26:02 +00:00
Chris Lattner
b4fc419d83 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.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77085 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 18:57:34 +00:00
Chris Lattner
4f05591e61 document some invariants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77084 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 18:11:58 +00:00
Chris Lattner
10cf6a6a4b add the most expedient hack to fix PR4619, along with a testcase. 
Thanks to Rafael for the great example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77083 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 17:57:37 +00:00
Dan Gohman
7e77f79591 Fix a few comments to say "backedge-taken count" instead of 
"trip count".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77081 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 16:18:38 +00:00
Dan Gohman
bc3d77a0df SCEV objects are no longer reference-counted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77080 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 16:18:07 +00:00
Dan Gohman
72efa18f1d Update comments to new-style syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77079 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 16:03:55 +00:00
Dan Gohman
19378d622e When attempting to sign-extend an addrec by interpreting 
the step value as unsigned, the start value and the addrec
itself still need to be treated as signed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77078 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 16:03:30 +00:00
Dan Gohman
996b9d6aa9 Remove spurious semicolons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77077 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 16:00:54 +00:00
Andreas Bolka
8a8bd3d690 Convert DOUT to DEBUG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77065 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 12:19:58 +00:00
Daniel Dunbar
d6fd377f33 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77060 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 10:09:50 +00:00
Sanjiv Gupta
e0d12d5f7b Mark attributes of return insn correctly. It was being assumed safe to delete in isSafeToDelete (a thing checked-in 76281). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 07:48:53 +00:00