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Author SHA1 Message Date
Daniel Dunbar
5a9d56ab90 Update Triple to use StringRef/Twine based APIs. 
- This is now shorter, simpler, safer, and more efficient, what a deal.

llvm-svn: 77119
 2009-07-26 03:31:47 +00:00
Daniel Dunbar
b97f9fc3f5 Add StringRef::{slice, split}, two convenient string operations which are simple 
and efficient on a StringRef.

llvm-svn: 77117
 2009-07-26 03:18:15 +00:00
Chris Lattner
5547fd80ad 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
7917e05213 Remove unused header 
llvm-svn: 77115
 2009-07-26 02:23:52 +00:00
Daniel Dunbar
49987490c2 Kill Target specific ModuleMatchQuality stuff. 
- This was overkill and inconsistently implemented.

llvm-svn: 77114
 2009-07-26 02:22:58 +00:00
Daniel Dunbar
62e74f03c7 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
32fefa61d9 eliminate a pointless switch stmt. 
llvm-svn: 77110
 2009-07-26 01:44:55 +00:00
Chris Lattner
9cd489c7f1 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
Daniel Dunbar
3c3f0d5b63 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...

llvm-svn: 77106
 2009-07-26 01:04:10 +00:00
Daniel Dunbar
518cd20f61 Rewrite getName{Start,End,Len} in terms of getName(), instead of vice-versa. 
llvm-svn: 77105
 2009-07-26 00:51:56 +00:00
Chris Lattner
b95150b65a 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
Chris Lattner
259c4e4a55 simplify some predicates, add isMergableString() 
llvm-svn: 77103
 2009-07-26 00:50:43 +00:00
Daniel Dunbar
ddf2470263 Simplify. 
llvm-svn: 77102
 2009-07-26 00:42:33 +00:00
Bob Wilson
ec256c8938 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
3e85b410ab Remove Value::setName(const char*, unsigned). 
llvm-svn: 77100
 2009-07-26 00:34:27 +00:00
Daniel Dunbar
c1ab70760a 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...

llvm-svn: 77099
 2009-07-26 00:17:14 +00:00
Daniel Dunbar
038a7f0d35 Remove Value::{isName, getNameRef}. 
Also, change MDString to use a StringRef.

llvm-svn: 77098
 2009-07-25 23:55:21 +00:00
Chris Lattner
fda0ca90c1 make SectionKind be a first-class pod struct instead of just 
an enum.

llvm-svn: 77096
 2009-07-25 23:21:55 +00:00
Reid Kleckner
b159a2bad6 Added a test and fixed a bug in BumpPtrAllocator relating to large alignment 
values.  Hopefully this fixes PR4622.

llvm-svn: 77088
 2009-07-25 21:26:02 +00:00
Chris Lattner
15b3d2039f 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
edbf2e64cb document some invariants. 
llvm-svn: 77084
 2009-07-25 18:11:58 +00:00
Chris Lattner
cf7cc0ed7d 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
Dan Gohman
4a193ce478 Fix a few comments to say "backedge-taken count" instead of 
"trip count".

llvm-svn: 77081
 2009-07-25 16:18:38 +00:00
Dan Gohman
0781059503 SCEV objects are no longer reference-counted. 
llvm-svn: 77080
 2009-07-25 16:18:07 +00:00
Dan Gohman
cb1390f7ed Update comments to new-style syntax. 
llvm-svn: 77079
 2009-07-25 16:03:55 +00:00
Dan Gohman
c126330ef1 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.

llvm-svn: 77078
 2009-07-25 16:03:30 +00:00
Dan Gohman
8d8a8adebf Remove spurious semicolons. 
llvm-svn: 77077
 2009-07-25 16:00:54 +00:00
Andreas Bolka
72c14efff0 Convert DOUT to DEBUG. 
llvm-svn: 77065
 2009-07-25 12:19:58 +00:00
Daniel Dunbar
d699ffc2ac 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
b09f01d842 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
Chris Lattner
06449afe92 remove this test. It is currently failing because we now emit the string 
on darwin with ".cstring" instead of ".section  __TEXT,__cstring".  They
are the same and the former is better.  Remove this because this is no longer
magic pixie dust in the frontend.

llvm-svn: 77055
 2009-07-25 07:31:51 +00:00
Chris Lattner
021a977857 eventually we should describe string options in the data structures section 
llvm-svn: 77054
 2009-07-25 07:22:20 +00:00
Chris Lattner
5092df83f7 minor tweaks. 
llvm-svn: 77053
 2009-07-25 07:16:59 +00:00
Daniel Dunbar
284fe09fe4 Add new helpers for registering targets. 
- Less boilerplate == good.

llvm-svn: 77052
 2009-07-25 06:49:55 +00:00
Daniel Dunbar
9f50ab3c49 Finish migrating VMCore to StringRef/Twine based APIs. 
llvm-svn: 77051
 2009-07-25 06:02:13 +00:00
Daniel Dunbar
794f5b8325 Ok, "most clients should be unaffected" was a lie. Add notes on upgrading. 
llvm-svn: 77050
 2009-07-25 05:26:53 +00:00
Daniel Dunbar
251177c96e Initial update to VMCore to use Twines for string arguments. 
- The only meat here is in Value.{h,cpp} the rest is essential 'const
   std::string &' -> 'const Twine &'.

llvm-svn: 77048
 2009-07-25 04:41:11 +00:00
Eric Christopher
b5f8390b6c Fix 80-col violations. 
llvm-svn: 77045
 2009-07-25 02:45:27 +00:00
Eric Christopher
df9c86fc26 Move ExtractElementInst to ::Create instead of new. Update all uses. 
llvm-svn: 77044
 2009-07-25 02:28:41 +00:00
Dan Gohman
f6e44e6e47 Update to new syntax. 
llvm-svn: 77043
 2009-07-25 02:23:48 +00:00
Daniel Dunbar
16ec56532a Rewrite examples to use DEBUG instead of DOUT. 
llvm-svn: 77042
 2009-07-25 01:55:32 +00:00
Evan Cheng
0f605005c5 80 col violation. 
llvm-svn: 77041
 2009-07-25 01:55:25 +00:00
Dan Gohman
9a7deba67e Convert a few more things to use raw_ostream. 
llvm-svn: 77039
 2009-07-25 01:43:01 +00:00
Evan Cheng
5468ef5230 Get rid of a couple of unnecessary getOpcode calls. 
llvm-svn: 77035
 2009-07-25 01:25:08 +00:00
Dan Gohman
13aabe2ba4 Teach ScalarEvolution to make use of no-overflow flags when 
analyzing add recurrences.

llvm-svn: 77034
 2009-07-25 01:22:26 +00:00
Dan Gohman
fdf1a11a27 Convert a few more uses of llvm/Support/Streams.h to raw_ostream. 
llvm-svn: 77033
 2009-07-25 01:13:51 +00:00
Dan Gohman
a823846bd1 Instead of eagerly creating new SCEVs to replace all SCEVs that are 
affected after a PHI node has been analyzed, just remove affected
SCEVs from the Scalars map, so that they'll be (lazily) recreated as
needed. This avoids creating SCEV objects that aren't actually needed.

Also, rewrite the associated def-use walking code to be non-recursive
and to continue traversing past Instructions that don't have an
entry in the Scalars map.

llvm-svn: 77032
 2009-07-25 01:13:03 +00:00
Evan Cheng
12dd5c078f I've lost my mind. PR4572 has not been fixed. 
llvm-svn: 77031
 2009-07-25 01:11:46 +00:00
Dan Gohman
acc5d6eaae Make AliasAnalysis and related classes use 
getAnalysisIfAvailable<TargetData>().

llvm-svn: 77028
 2009-07-25 00:48:42 +00:00
Daniel Dunbar
cdefe7660f One more getName -> getNameStr 
llvm-svn: 77027
 2009-07-25 00:43:31 +00:00