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83912 Commits

Author SHA1 Message Date
Nick Lewycky 47b92a2cc4 Add a 'Base' type to RecursiveASTVisitor to make recursing easier and document 
how you're supposed to use it.

llvm-svn: 103993
 2010-05-17 23:15:38 +00:00
Bill Wendling 02d3368831 - Set the "HasCalls" flag after instruction selection is finished. 
- Change the logic DisableFramePointerElim() to check for the
  -disable-non-leaf-fp-elim before -disable-fp-elim.

llvm-svn: 103990
 2010-05-17 23:09:50 +00:00
Kevin Enderby 0510b48fd9 Added support in MC for Directional Local Labels. 
llvm-svn: 103989
 2010-05-17 23:08:19 +00:00
Ted Kremenek 990783e345 Clean up test case and remove XFAIL. This test can now distinguish between 
cases where Clang can suggest and fix and suggest and not auto-fix (because of
current limitations).

llvm-svn: 103987
 2010-05-17 23:03:33 +00:00
John McCall 1b84d1106e Comments and assorted cleanups for the Objective C type AST. 
llvm-svn: 103986
 2010-05-17 23:00:45 +00:00
Eric Christopher 9635b3da6b More data/parsing support for tls directives. Add a few more testcases 
and cleanup comments as well.

llvm-svn: 103985
 2010-05-17 22:53:55 +00:00
Evan Cheng f2c9a96f3c Fix PR7156. If the sources of a REG_SEQUENCE are all IMPLICIT_DEF's. Replace it with an IMPLICIT_DEF rather than deleting it or else it would be left without a def. 
llvm-svn: 103984
 2010-05-17 22:09:49 +00:00
Howard Hinnant 6692b261d8 [rand.dist.norm.cauchy]. I'm having trouble testing the output as all statistical properties are undefined. They do not converge upon any one value as the number of samples increases. Suggestions for tests welcome. 
llvm-svn: 103983
 2010-05-17 21:55:46 +00:00
Evan Cheng cd04ed3533 vmov of immediates are trivially re-materializable. 
llvm-svn: 103982
 2010-05-17 21:54:50 +00:00
Daniel Dunbar bb166bed40 MC/Mach-O/x86: Optimal nop sequences should only be used for the .text sections, not all sections in the text segment. 
llvm-svn: 103981
 2010-05-17 21:54:30 +00:00
Daniel Dunbar ce5e1bb326 MC: Add dyn_cast support to MCSection. 
- Of questionable utility, since in general anything which wants to do this should probably be within a target specific hook, which can rely on the sections being of the appropriate type. However, it can be useful for short term hacks.

llvm-svn: 103980
 2010-05-17 21:54:26 +00:00
Daniel Dunbar b7b796cc11 MC/Mach-O: Reverse order of SymbolData scanning when emitting instructions. 
- This fixes a string table mismatch with 'as' when two new symbols are defined
   in a single instruction.

llvm-svn: 103979
 2010-05-17 21:19:59 +00:00
Jakob Stoklund Olesen 585792738b Pull the UsedInInstr.test() calls into calcSpillCost() and remember aliases. 
This fixes the miscompilations of MultiSource/Applications/JM/l{en,de}cod.
Clang now successfully self hosts in a debug build with the fast register allocator.

llvm-svn: 103975
 2010-05-17 21:02:08 +00:00
Eric Christopher bf79238599 Add some section and constant support for darwin TLS. 
llvm-svn: 103974
 2010-05-17 21:02:07 +00:00
John McCall 96fa4845f7 Clean up some more uses of getAs<ObjCInterfaceType>() that Fariborz pointed 
out.  The remaining ones are okay.

llvm-svn: 103973
 2010-05-17 21:00:27 +00:00
Chandler Carruth 0450cc684c Fix an ambiguous else warning from GCC by adding some much needed curlies. 
llvm-svn: 103972
 2010-05-17 20:58:49 +00:00
Evan Cheng 29c463862e Careful with reg_sequence coalescing to not to overwrite sub-register indices. 
llvm-svn: 103971
 2010-05-17 20:57:12 +00:00
Howard Hinnant eb6fa6af2b Got rid of more :: path names 
llvm-svn: 103970
 2010-05-17 20:38:02 +00:00
Bob Wilson c601801a7e Fix a regression in 464.h264 for thumb1 and thumb2 nightly tests. 
Obvious in retrospect but not fun to debug.

llvm-svn: 103969
 2010-05-17 20:31:13 +00:00
Chris Lattner 467f6bcfe5 robustify the conflict marker stuff. Don't add 7 twice, which would 
make it miss (invalid) things like:
<<<<<<<
>>>>>>>

and crash if 

<<<<<<< 

was at the end of the line.  When we find a >>>>>>> that is not at the
end of the line, make sure to reset Pos so we don't crash on something
like:
<<<<<<< >>>>>>>

This isn't worth making testcases for, since each would require a new file.

rdar://7987078 - signal 11 compiling "<<<<<<<<<<"

llvm-svn: 103968
 2010-05-17 20:27:25 +00:00
Ted Kremenek 0ed7549343 Fix missing '}'. 
llvm-svn: 103966
 2010-05-17 20:12:45 +00:00
John McCall 3e294929b8 Correctly generate IR for ObjC messages sends to protocol-qualified types. 
Fixes rdar://problem/7992749

llvm-svn: 103965
 2010-05-17 20:12:43 +00:00
Daniel Dunbar 0211a96989 MC/Mach-O: Fix some differences in symbol flag handling. 
- Don't clear weak reference flag, 'as' was only "trying" to do this, it wasn't
   actually succeeding.
 - Clear the "lazy bound" bit when we mark something external. This corresponds
   roughly to the lazy clearing of the bit that 'as' implements in
   symbol_table_lookup.
 - The exact meaning of these flags appears pretty loose, since 'as' isn't very
   consistent. For now we just try to match 'as', we will clean this up one day
   hopefully.

llvm-svn: 103964
 2010-05-17 20:12:31 +00:00
Ted Kremenek 9cfe9e6a4a Add libclang function 'clang_CXXMethod_isStatic' to query of a C++ method 
is declared static.

llvm-svn: 103963
 2010-05-17 20:06:56 +00:00
Jakob Stoklund Olesen 84a8415ed7 Optimize empty DenseMap iteration. 
llvm-svn: 103962
 2010-05-17 20:01:24 +00:00
Jakob Stoklund Olesen 70563bbba5 Remove debug option. Add comment on spill order determinism. 
llvm-svn: 103961
 2010-05-17 20:01:22 +00:00
Evan Cheng 3d98b996ff Turn on -neon-reg-sequence by default. 
Using NEON load / store multiple instructions will no longer create gobs of vmov of D registers!

llvm-svn: 103960
 2010-05-17 19:51:20 +00:00
Douglas Gregor c4c574bd2e Test that mutability of class members that involve class definitions actually works 
llvm-svn: 103959
 2010-05-17 19:45:25 +00:00
Douglas Gregor 3b05bdba5a Teach ASTContext::getUnqualifiedArrayType() how to look through 
typedefs. As a drive-by, teach hit how to build VLA types, since those
will eventually be supported in C++.

llvm-svn: 103958
 2010-05-17 18:45:21 +00:00
Howard Hinnant fd5c3a34e3 [rand.dist.norm.lognormal] 
llvm-svn: 103957
 2010-05-17 18:31:53 +00:00
Douglas Gregor c9a99c5e5c mutable is a storage class that can follow a class/struct/union definition. Fixes PR7153 
llvm-svn: 103954
 2010-05-17 18:19:56 +00:00
Fariborz Jahanian 16f94c6e8f Don't attempt to poke into an invalid field's class type 
to mark its destructors as referenced which may cause 
a crash. Fixes radar 7896920

llvm-svn: 103953
 2010-05-17 18:15:18 +00:00
Douglas Gregor fd7224fee0 Diagnose a redefinition error when there are two instantiations of friend 
functions defined inside a class template. Fixes PR6952, the last
Boost.Units failure.

llvm-svn: 103952
 2010-05-17 17:57:54 +00:00
Daniel Dunbar 9b4a824217 llvm-mc: Support reassignment of variables in one special case, when the 
variable has not yet been used in an expression. This allows us to support a few
cases that show up in real code (mostly because gcc generates it for Objective-C
on Darwin), without giving up a reasonable semantic model for assignment.

llvm-svn: 103950
 2010-05-17 17:46:23 +00:00
Douglas Gregor 69f6a365d3 Determine when the instantiation of a friend function defined inside a 
class template conflicts with an existing (non-template)
definition. This is another part of PR6952.

llvm-svn: 103948
 2010-05-17 17:34:56 +00:00
Jakob Stoklund Olesen 176a9c4272 Avoid allocating the same physreg to multiple virtregs in one instruction. 
While that approach works wonders for register pressure, it tends to break
everything.

This should unbreak the arm-linux builder and fix a number of miscompilations.

llvm-svn: 103946
 2010-05-17 17:18:59 +00:00
Daniel Dunbar f7a8825484 IRgen: Remove dead function. 
llvm-svn: 103945
 2010-05-17 16:46:02 +00:00
Daniel Dunbar cd20ce1513 C++/Darwin/i386 ABI: Fix some problems with empty record handling. 
- Check bases as part of isEmptyRecord().

 - C++ record fields are never empty in the Itanium ABI.

llvm-svn: 103944
 2010-05-17 16:46:00 +00:00
Douglas Gregor 1cd6ea0b24 C++98/03 [temp.friend]p4 requires that inline function definitions 
within class templates be instantiated along with each class template
specialization, even if the functions are not used. Do so, as a baby
step toward PR6952.

llvm-svn: 103943
 2010-05-17 16:38:00 +00:00
Howard Hinnant c675d983f6 [rand.dist.pois.extreme] 
llvm-svn: 103942
 2010-05-17 16:21:56 +00:00
Douglas Gregor 9154b5dffe Ensure that destructors are called for NRVO'd objects when the 
function does not return. Thanks to Eli for pointing out this corner
case.

llvm-svn: 103941
 2010-05-17 15:52:46 +00:00
Jakob Stoklund Olesen f5e8c86424 Minor optimizations. DenseMap::begin() is surprisingly slow on an empty map. 
llvm-svn: 103940
 2010-05-17 15:30:37 +00:00
Jakob Stoklund Olesen 6649cdaa23 Extract spill cost calculation to a new method, and use definePhysReg() to clear 
out aliases when allocating. Clean up allocVirtReg().

Use calcSpillCost() to allow more aggressive hinting. Now the hint is always
taken unless blocked by a reserved register. This leads to more coalescing,
lower register pressure, and less spilling.

llvm-svn: 103939
 2010-05-17 15:30:32 +00:00
David Chisnall f9c4225af6 Pick the correct personality function based on the language. This prevents link failures when C/ObjC code uses __attribute__((cleanup())) (previously this was inserting references to two libstc++ symbols; the personality function and the __terminate() function). 
This is still probably wrong for Objective-C++ and adds a couple of lines in CGException that should probably be in the CGObjCRuntime subclass.  The personality function is now only looked up in one place in CGException though, so this should be easier to fix in the future.

llvm-svn: 103938
 2010-05-17 13:49:20 +00:00
Howard Hinnant 05fa30d595 [rand.dist.bern.geo] 
llvm-svn: 103937
 2010-05-17 13:44:27 +00:00
Zhongxing Xu 188855abef Remove unused member variable. 
llvm-svn: 103936
 2010-05-17 09:47:55 +00:00
Jakob Stoklund Olesen 7d22a81b61 Only use clairvoyance when defining a register, and then only if it has one use. 
This makes allocation independent on the ordering of use-def chains.

llvm-svn: 103935
 2010-05-17 04:50:57 +00:00
Jakob Stoklund Olesen f915d14955 Eliminate a hash table probe when killing virtual registers. 
llvm-svn: 103934
 2010-05-17 03:26:09 +00:00
Jakob Stoklund Olesen edd3d9db13 Execute virtreg kills immediately instead of after processing all uses. 
This is safe to do because the physreg has been marked UsedInInstr and the kill flag will be set on the last operand using the virtreg if there are more then one.

llvm-svn: 103933
 2010-05-17 03:26:06 +00:00
Eli Friedman b41ad0fbea PR7117: Make sure we don't lose the calling convention for K&R-style 
definitions.
 

llvm-svn: 103932
 2010-05-17 02:50:18 +00:00