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73911 Commits

Author SHA1 Message Date
Torok Edwin 12b8a63e13 Comparing std::string with NULL is a bad idea, so just check whether its empty. 
This code was crashing always with oprofile enabled, since it tried to create a StringRef
out of NULL, which run strlen on NULL.

llvm-svn: 91046
 2009-12-10 10:01:47 +00:00
John McCall 84d8767c15 Implement redeclaration checking and hiding semantics for using declarations. There 
are a couple of O(n^2) operations in this, some analogous to the usual O(n^2)
redeclaration problem and some not.  In particular, retroactively removing
shadow declarations when they're hidden by later decls is pretty unfortunate.
I'm not yet convinced it's worse than the alternative, though.

llvm-svn: 91045
 2009-12-10 09:41:52 +00:00
Eli Friedman e919e382a4 Fix for PR5515: allow "merging" array bounds both forwards and backwards. 
llvm-svn: 91044
 2009-12-10 08:54:47 +00:00
Eli Friedman d011893e86 Test for r90950. 
llvm-svn: 91043
 2009-12-10 08:51:23 +00:00
Anders Carlsson bf56946073 Mangle static variables inside Objective-C methods in Objective-C++. We currently mangle them the same way as gcc does. 
llvm-svn: 91042
 2009-12-10 03:14:39 +00:00
Eli Friedman d5bc94e2eb Get rid of static variable. 
llvm-svn: 91041
 2009-12-10 02:21:21 +00:00
Chris Lattner 3c674cf804 If we enter parens, colons can become un-sacred, allowing us to emit 
a better diagnostic in the second example.

llvm-svn: 91040
 2009-12-10 02:08:07 +00:00
Chris Lattner 244b96ba0a fix a more evil case of : / :: confusion arising in ?:. 
llvm-svn: 91039
 2009-12-10 02:02:58 +00:00
Chris Lattner 17c3b1f278 fix incorrect parsing of bitfields pointed out by Doug. I chose 
to use ColonProtectionRAIIObject in the C codepath even though it
won't matter for consistency.

llvm-svn: 91037
 2009-12-10 01:59:24 +00:00
Anders Carlsson fefc7b8e7b Actually store the pointer into the global variable, spotted by Eli. 
llvm-svn: 91036
 2009-12-10 01:58:33 +00:00
Mike Stump 3c6a12ca65 Setup cleanup on eh edge out of the construction of the cleanup object 
during throw to deallocate the exception object.  WIP.

llvm-svn: 91035
 2009-12-10 01:52:30 +00:00
Chris Lattner 399df12fb1 minimal fix for PR5743 
llvm-svn: 91032
 2009-12-10 01:38:15 +00:00
Anders Carlsson a72ddd4609 Handle emitting static variables that have reference type. 
llvm-svn: 91027
 2009-12-10 01:05:11 +00:00
Anders Carlsson 364051c6a6 Separate generating code for static variables and global variables. 
llvm-svn: 91026
 2009-12-10 00:57:45 +00:00
Anders Carlsson 3c951d1ae0 Fix tabs. 
llvm-svn: 91025
 2009-12-10 00:57:18 +00:00
Chris Lattner b2434d558d Second half of r91023, saving files is good. 
llvm-svn: 91024
 2009-12-10 00:45:15 +00:00
Chris Lattner 5701386620 move GreaterThanIsOperatorScope into RAIIObjectsForParser. Add some more 
TODOs for other classes that could be moved out of Parser.h.  I don't plan
to do these in the near term though.

llvm-svn: 91023
 2009-12-10 00:44:03 +00:00
Chris Lattner 125c0ee5c7 fix PR5740: a colon is sacred when parsing case statement expressions! 
llvm-svn: 91016
 2009-12-10 00:38:54 +00:00
Chris Lattner 793c75a28f rename testcase 
llvm-svn: 91015
 2009-12-10 00:37:13 +00:00
Chris Lattner d5c1c9d0ae refactor the 'ColonIsSacred' argument to ParseOptionalCXXScopeSpecifier 
to be a bool in Parser that is twiddled by the ColonProtectionRAIIObject
class.  No functionality change.

llvm-svn: 91014
 2009-12-10 00:32:41 +00:00
Anders Carlsson 633c6f6f36 Move more decl related functions to CGDeclCXX.cpp 
llvm-svn: 91012
 2009-12-10 00:30:05 +00:00
Eric Christopher 22889c049d Make sure the immediate dominator isn't NULL through iterations 
of the loop. We could get to this condition via indirect
branches.

llvm-svn: 91009
 2009-12-10 00:25:41 +00:00
Chris Lattner 8a9a97a660 rename ExtensionRAIIObject.h -> RAIIObjectsForParser.h 
llvm-svn: 91008
 2009-12-10 00:21:05 +00:00
Anders Carlsson bc49cfed84 Add CGDeclCXX.cpp and move EmitCXXGlobalVarDeclInit there. 
llvm-svn: 91006
 2009-12-10 00:16:00 +00:00
Chris Lattner 9ccc879006 Fix PR5744, a case where we were getting the pointer size instead of the 
value size.  This only manifested when memdep inprecisely returns clobber,
which is do to a caching issue in the PR5744 testcase.  We can 'efficiently
emulate' this by using '-no-aa'

llvm-svn: 91004
 2009-12-10 00:11:45 +00:00
Jim Grosbach 53e8854443 Add memory barrier intrinsic support for ARM. Moving towards adding the atomic operations intrinsics. 
llvm-svn: 91003
 2009-12-10 00:11:09 +00:00
Nuno Lopes 221c1fd63e spread 'const' love to some variables. this considerably reduces the amount of dirty data around. 
llvm-svn: 91002
 2009-12-10 00:07:02 +00:00
Mike Stump 75546b8c88 Fixup spacing. 
llvm-svn: 91001
 2009-12-10 00:06:18 +00:00
Mike Stump 2600491817 Fix spacing. 
llvm-svn: 91000
 2009-12-10 00:05:14 +00:00
Chris Lattner 3ddf804f78 allow this to build when the #if 0's are enabled. No functionality change. 
llvm-svn: 90999
 2009-12-10 00:04:46 +00:00
Mike Stump f5cbb08c4b Ensure we only generate one terminate handler. 
llvm-svn: 90998
 2009-12-10 00:02:42 +00:00
Mike Stump 3b60f034f9 Remove obsolete FIXME and some dead fallback code. 
llvm-svn: 90997
 2009-12-09 23:52:09 +00:00
Mike Stump 102530719f Add terminate handler to cleanups on exceptional edges. 
llvm-svn: 90996
 2009-12-09 23:49:53 +00:00
Fariborz Jahanian 531c16f9fb Code gen for ObjCIsaExpr AST used as lvalue. 
(fixes radar 7457534).

llvm-svn: 90995
 2009-12-09 23:35:29 +00:00
Mike Stump 25b20fc2ae Add terminate handler for copy constructors for thrown objects. WIP. 
llvm-svn: 90994
 2009-12-09 23:31:35 +00:00
Ted Kremenek 8573913760 Fix null dereference in OSAtomicChecker and special case SymbolicRegions. We still aren't handling them correctly; I've added to failing test cases to test/Analysis/NSString-failed-cases.m that should pass and then be merged in to test/Analysis/NSString.m. 
llvm-svn: 90993
 2009-12-09 23:29:55 +00:00
Douglas Gregor 3e1e527826 Reimplement reference initialization (C++ [dcl.init.ref]) using the 
new notion of an "initialization sequence", which encapsulates the
computation of the initialization sequence along with diagnostic
information and the capability to turn the computed sequence into an
expression. At present, I've only switched one CheckReferenceInit
callers over to this new mechanism; more will follow.

Aside from (hopefully) being much more true to the standard, the
diagnostics provided by this reference-initialization code are a bit
better than before. Some examples:

p5-var.cpp:54:12: error: non-const lvalue reference to type 'struct
Derived'
      cannot bind to a value of unrelated type 'struct Base'
  Derived &dr2 = b; // expected-error{{non-const lvalue reference to
  ...
           ^     ~
p5-var.cpp:55:9: error: binding of reference to type 'struct Base' to
a value of
      type 'struct Base const' drops qualifiers
  Base &br3 = bc; // expected-error{{drops qualifiers}}
        ^     ~~

p5-var.cpp:57:15: error: ambiguous conversion from derived class
      'struct Diamond' to base class 'struct Base':
    struct Diamond -> struct Derived -> struct Base
    struct Diamond -> struct Derived2 -> struct Base
  Base &br5 = diamond; // expected-error{{ambiguous conversion from
      ...
              ^~~~~~~
p5-var.cpp:59:9: error: non-const lvalue reference to type 'long'
      cannot bind to
      a value of unrelated type 'int'
  long &lr = i; // expected-error{{non-const lvalue reference to type
      ...
        ^    ~

p5-var.cpp:74:9: error: non-const lvalue reference to type 'struct
Base' cannot
      bind to a temporary of type 'struct Base'
  Base &br1 = Base(); // expected-error{{non-const lvalue reference to
  ...
        ^     ~~~~~~

p5-var.cpp:102:9: error: non-const reference cannot bind to bit-field
'i'
  int & ir1 = (ib.i); // expected-error{{non-const reference cannot
  ...
        ^     ~~~~~~
p5-var.cpp:98:7: note: bit-field is declared here
  int i : 17; // expected-note{{bit-field is declared here}}
      ^

llvm-svn: 90992
 2009-12-09 23:02:17 +00:00
Mike Stump 2b488873bf Break out code for reuse. WIP. 
llvm-svn: 90991
 2009-12-09 22:59:31 +00:00
Dan Gohman 72c367fb52 Dereference loopHeader after checking for null rather than before. 
llvm-svn: 90990
 2009-12-09 22:55:01 +00:00
Evan Cheng 2262909b20 Fix test. 
llvm-svn: 90988
 2009-12-09 22:24:42 +00:00
Fariborz Jahanian 26de2e594b Fixes a bogus error when declaring an extern "C" array. 
(fixes radar 7457109).

llvm-svn: 90986
 2009-12-09 21:39:38 +00:00
Evan Cheng 493b882f80 Optimize splat of a scalar load into a shuffle of a vector load when it's legal. e.g. 
vector_shuffle (scalar_to_vector (i32 load (ptr + 4))), undef, <0, 0, 0, 0>
=>
vector_shuffle (v4i32 load ptr), undef, <1, 1, 1, 1>

iff ptr is 16-byte aligned (or can be made into 16-byte aligned).

llvm-svn: 90984
 2009-12-09 21:00:30 +00:00
Mike Stump f16b8c30d9 Add throw support. WIP. 
llvm-svn: 90982
 2009-12-09 19:24:08 +00:00
Fariborz Jahanian a5fee26d28 Codegen. support for ObjCIsaExpr AST which until now 
was not needed (fixes radar 7453430).

llvm-svn: 90981
 2009-12-09 19:05:56 +00:00
Dan Gohman 220b196c94 Reuse the Threshold value to size these containers because it's 
currently somewhat convenient for them to have the same value.

llvm-svn: 90980
 2009-12-09 18:48:53 +00:00
Devang Patel 9ccfb641d1 Reapply r90858, a cleanup patch. 
llvm-svn: 90979
 2009-12-09 18:24:21 +00:00
Chris Lattner ca5f9cb18b fix hte last remaining known (by me) phi translation bug. When we reanalyze 
clobbers to forward pieces of large stores to small loads, we need to consider
the properly phi translated pointer in the store block.

llvm-svn: 90978
 2009-12-09 18:21:46 +00:00
Chris Lattner f8ba1253f1 change GetStoreValueForLoad to use IRBuilder, which is cleaner and 
implicitly constant folds.

llvm-svn: 90977
 2009-12-09 18:13:28 +00:00
Mike Stump d0caa82b36 Fix 80-col violation. 
llvm-svn: 90976
 2009-12-09 18:09:35 +00:00
Bob Wilson 1c5a6fb299 Fix a comment. 
llvm-svn: 90975
 2009-12-09 18:05:27 +00:00