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96163 Commits

Author SHA1 Message Date
Bill Wendling 219dabdf68 The "trap" instruction is one of this which doesn't have a condition code. Hack 
the code to not add a "condition code" if it's trap.

llvm-svn: 119937
 2010-11-21 10:56:05 +00:00
Bill Wendling 3acd02706a - Give "trap" the correct encoding, at least according to Darwin's assembler. 
- Add comments saying where the encodings for other instructions came from.

llvm-svn: 119936
 2010-11-21 10:55:23 +00:00
Chris Lattner 8afa6deb1d remove old compatibility APIs, use StringRef versions instead. 
llvm-svn: 119935
 2010-11-21 09:55:08 +00:00
Chris Lattner 0c0e80408a change the various getFile routines to use StringRef as their implementation form. 
llvm-svn: 119934
 2010-11-21 09:50:16 +00:00
Chris Lattner 6ce038082b apply Dan's fix for PR8268 which allows constant folding to handle indexes over 
zero sized elements.  This allows us to compile:

  #include <string>
  void foo() { std::string s; }

into an empty function.

llvm-svn: 119933
 2010-11-21 08:39:01 +00:00
Chris Lattner 526cce12f5 add some helper methods for asmprinter flags, from PR8417 
llvm-svn: 119932
 2010-11-21 08:30:55 +00:00
Chris Lattner b4cd1819fa implement PR8524, apparently mainline gas accepts movq as an alias for movd 
when transfering between i64 gprs and mmx regs.

llvm-svn: 119931
 2010-11-21 08:18:57 +00:00
Chris Lattner 5957229659 rework some DSE paths to use the newly-public "getPointerDependencyFrom" 
method in MemDep instead of inserting an instruction, doing a query,
then removing it.  Neither operation is effectively cached.

llvm-svn: 119930
 2010-11-21 08:06:10 +00:00
Chris Lattner e69672c44f the getLocationForSource/Dest methods can be static. 
llvm-svn: 119929
 2010-11-21 08:05:25 +00:00
Chris Lattner 663ba91cc6 add "getLocation" method to AliasAnalysis for getting the source and 
destination location of a memcpy/memmove.  I'm not clear about whether
TBAA works on these, so I'm leaving it out for now.  Dan, please revisit
this when convenient.

llvm-svn: 119928
 2010-11-21 07:51:27 +00:00
Chris Lattner e48c31ce33 implement PR8576, deleting dead stores with intervening may-alias stores. 
llvm-svn: 119927
 2010-11-21 07:34:32 +00:00
Chris Lattner 6e22221b37 file checkize 
llvm-svn: 119926
 2010-11-21 07:32:40 +00:00
Chris Lattner 9165d9d2ac add some random notes. 
llvm-svn: 119925
 2010-11-21 07:05:31 +00:00
Francois Pichet df946c3702 Fix warning: enumeration value 'IndirectField' not handled in switch. 
llvm-svn: 119924
 2010-11-21 06:49:41 +00:00
Owen Anderson 7e484e0be7 Use by-name rather than by-order operand matching for some NEON encodings. 
llvm-svn: 119923
 2010-11-21 06:47:06 +00:00
Chris Lattner f7e896138e optimize: 
void a(int x) { if (((1<<x)&8)==0) b(); }

into "x != 3", which occurs over 100 times in 403.gcc but in no
other program in llvm-test.

llvm-svn: 119922
 2010-11-21 06:44:42 +00:00
Francois Pichet 0565e5c455 Compilation error: remove extra comma. 
llvm-svn: 119921
 2010-11-21 06:22:53 +00:00
Chris Lattner 9de0176ef8 tail calls on x86 are implemented. 
llvm-svn: 119920
 2010-11-21 06:10:27 +00:00
Francois Pichet 783dd6ece4 Major anonymous union/struct redesign. 
A new AST node is introduced:
   def IndirectField : DDecl<Value>;
IndirectFields are injected into the anonymous's parent scope and chain back to
the original field. Name lookup for anonymous entities now result in an
IndirectFieldDecl instead of a FieldDecl.
There is no functionality change, the code generated should be the same.

llvm-svn: 119919
 2010-11-21 06:08:52 +00:00
Jim Grosbach e040a46eb3 BR_JTadd is ARM-only, so use the proper pseudo class to get the predicate. 
llvm-svn: 119918
 2010-11-21 01:26:01 +00:00
Rafael Espindola 26cb15a549 Handle PCRel relocations with absolute values. Fixes PR8656. 
llvm-svn: 119917
 2010-11-21 00:48:25 +00:00
Chris Lattner 58f9f58716 Implement PR8644: forwarding a memcpy value to a byval, 
allowing the memcpy to be eliminated.

Unfortunately, the requirements on byval's without explicit 
alignment are really weak and impossible to predict in the 
mid-level optimizer, so this doesn't kick in much with current
frontends.  The fix is to change clang to set alignment on all
byval arguments.

llvm-svn: 119916
 2010-11-21 00:28:59 +00:00
Anders Carlsson d470fef01d Forward the -fno-elide-constructor argument to clang -cc1. Fixes PR8652. 
llvm-svn: 119915
 2010-11-21 00:09:52 +00:00
Chris Lattner d78dbee431 a byval argument without an align can have an arbitrary alignment 
requirement on the input pointer.

llvm-svn: 119914
 2010-11-20 23:49:06 +00:00
Bill Wendling c31de25137 A few more thumb instruction MC encodings. 
llvm-svn: 119913
 2010-11-20 22:52:33 +00:00
Eric Christopher 0a3c28bd6b Rewrite address handling to use a structure with all the possible address 
mode variables. Handle frame indexes in load/store and allocas again.

llvm-svn: 119912
 2010-11-20 22:38:27 +00:00
Eric Christopher d0aec3bf64 STRH only needs the additional operand, not t2STRH. Also invert conditional 
to match the one from the load emitter above.

llvm-svn: 119911
 2010-11-20 22:01:38 +00:00
Greg Clayton facfd06c4f When we resolve a forward declaration type, be sure to put it into the m_die_to_type map so we don't assert later when someone tries to resolve the type. 
llvm-svn: 119910
 2010-11-20 19:16:50 +00:00
Howard Hinnant 3dc6455ff0 N3191: C++ Timeout Specification 
llvm-svn: 119909
 2010-11-20 19:16:30 +00:00
Benjamin Kramer ddd1b7b801 Simplify code. No change in functionality. 
llvm-svn: 119908
 2010-11-20 18:43:35 +00:00
Frits van Bommel da17c921ba Test commit: Fix two -Asserts mode warnings in StringMap.h. 
llvm-svn: 119907
 2010-11-20 18:37:24 +00:00
Howard Hinnant 092980dd65 N3123 
llvm-svn: 119906
 2010-11-20 18:25:22 +00:00
Anton Korobeynikov 36590fc72a Make this compile on case-sensitive file systemsw 
llvm-svn: 119905
 2010-11-20 16:14:57 +00:00
Anton Korobeynikov 4687778398 Move some more hooks to TargetFrameInfo 
llvm-svn: 119904
 2010-11-20 15:59:32 +00:00
Benjamin Kramer f6fb58a216 Silence Release build warnings about unused functions. 
llvm-svn: 119903
 2010-11-20 15:53:24 +00:00
Francois Pichet 4fd9b685ff Disable warning C4291 on MSVC. Caused because class AttributeList provides a non implemented operator delete without a corresponding new. 
llvm-svn: 119902
 2010-11-20 15:39:03 +00:00
Duncan Sands 7c601ded34 On X86, MEMBARRIER, MFENCE, SFENCE, LFENCE are not target memory intrinsics, 
so don't claim they are.  They are allocated using DAG.getNode, so attempts
to access MemSDNode fields results in reading off the end of the allocated
memory.  This fixes crashes with "llc -debug" due to debug code trying to
print MemSDNode fields for these barrier nodes (since the crashes are not
deterministic, use valgrind to see this).  Add some nasty checking to try
to catch this kind of thing in the future.

llvm-svn: 119901
 2010-11-20 11:25:00 +00:00
Zhongxing Xu 2cf9b135d4 Add comments. 
llvm-svn: 119900
 2010-11-20 08:17:16 +00:00
Zhanyong Wan 7426ea729c Fix a typo in EnvironmentManager::bindExprAndLocation(). Reviewed by kremenek. 
llvm-svn: 119899
 2010-11-20 07:52:48 +00:00
Andrew Trick cf7fefb25c Removing the useless test that I added recently. It was meant as an example, but not complicated enough to merit another test. 
llvm-svn: 119898
 2010-11-20 07:26:51 +00:00
Zhongxing Xu 2c966716ff Handle CFGAutomaticObjDtor. 
llvm-svn: 119897
 2010-11-20 06:53:12 +00:00
Andrew Trick ada75c5ad1 RABasic fix. Regalloc is responsible for updating block live ins. 
llvm-svn: 119896
 2010-11-20 02:57:05 +00:00
Andrew Trick 799ec1c4d6 Whitespace. 
llvm-svn: 119895
 2010-11-20 02:43:55 +00:00
Sean Callanan fbfd7ba547 Removed a stray dump() that made it into top-of-tree. 
llvm-svn: 119890
 2010-11-20 02:23:49 +00:00
Sean Callanan a3aa0cf6e6 Made GetVariableValue() more robust in the face 
of failures in the AST importer.  Also ensured
that a variable will not be blindly added if
GetVariableValue() returns an error.

llvm-svn: 119889
 2010-11-20 02:19:29 +00:00
Sean Callanan 80eee3a989 Removed a stray dump(). 
llvm-svn: 119888
 2010-11-20 02:06:01 +00:00
Argyrios Kyrtzidis de2bdf637e Revert r119838 "Don't warn for empty 'if' body if there is a macro that expands to nothing" 
and use a better and more general approach, where NullStmt has a flag to indicate whether it was preceded by an empty macro.

Thanks to Abramo Bagnara for the hint!

llvm-svn: 119887
 2010-11-20 02:04:01 +00:00
Nick Lewycky 9331ed89f8 A bundle of whitespace changes, separated out from the functional changes. 
llvm-svn: 119886
 2010-11-20 01:29:55 +00:00
Jason Molenda 2d107dd02b Change the DWARFExpression::Evaluate methods to take an optional 
RegisterContext* - normally this is retrieved from the ExecutionContext's
StackFrame but when we need to evaluate an expression while creating
the stack frame list this can be a little tricky.

Add DW_OP_deref_size, needed for the _sigtramp FDE expression.

Add support for processing DWARF expressions in RegisterContextLLDB.

Update callers to DWARFExpression::Evaluate.

llvm-svn: 119885
 2010-11-20 01:28:30 +00:00
Jakob Stoklund Olesen 40e78b4da0 Fix old GCC build error. 
llvm-svn: 119884
 2010-11-20 01:24:43 +00:00