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651 Commits

Author SHA1 Message Date
Richard Smith 2d8b294b3c -fcatch-undefined-behavior: Start checking loads and stores for null pointers. 
We want the diagnostic, and if the load is optimized away, we still want to
trap it. Stop checking non-default address spaces; that doesn't work in
general.

llvm-svn: 167219
 2012-11-01 07:22:08 +00:00
Eli Friedman fb9c49e250 Don't crash on bad atomic operations. PR14176. 
llvm-svn: 166992
 2012-10-30 01:15:28 +00:00
Rafael Espindola 9c006de3d3 Move two helper functions to AST so that sema can use them. 
llvm-svn: 166853
 2012-10-27 01:03:43 +00:00
Rafael Espindola b9d75ca84b Refactor some code into a new findMaterializedTemporary function. 
llvm-svn: 166849
 2012-10-27 00:43:14 +00:00
Rafael Espindola b413676cd7 Refactor some code into a new skipRValueSubobjectAdjustments function. 
llvm-svn: 166848
 2012-10-27 00:40:06 +00:00
Rafael Espindola e7b11f5241 Delay codegen to after collecting all SubobjectAdjustment so that the collection 
can be refactored and used in Sema.

llvm-svn: 166847
 2012-10-27 00:36:38 +00:00
Richard Smith 4d3110af06 -fcatch-undefined-behavior checking for appropriate vptr value: Clang CodeGen side. 
llvm-svn: 166661
 2012-10-25 02:14:12 +00:00
Richard Smith 5a1104bd3a DR1472: A reference isn't odr-used if it has preceding initialization, 
initialized by a reference constant expression.

Our odr-use modeling still needs work here: we don't yet implement the 'set of
potential results of an expression' DR.

llvm-svn: 166361
 2012-10-20 01:38:33 +00:00
Bill Wendling a514ebc1db Move the Attributes::Builder outside of the Attributes class and into its own class named AttrBuilder. No functionality change. 
llvm-svn: 165961
 2012-10-15 20:36:26 +00:00
Bill Wendling 311c832fda Attributes Rewrite 
Convert the uses of the Attributes class over to the new format. The
Attributes::get method call now takes an LLVM context so that the attributes
object can be uniquified and stored.

llvm-svn: 165918
 2012-10-15 04:47:45 +00:00
Nico Weber cf4ff586e8 Add codegen support for __uuidof(). 
llvm-svn: 165710
 2012-10-11 10:13:44 +00:00
Bill Wendling a7912f8894 Remove the final bits of Attributes being declared in the Attribute 
namespace. Use the attribute's enum value instead. No functionality change
intended.

llvm-svn: 165611
 2012-10-10 07:36:56 +00:00
Richard Smith 683398a3b6 -fcatch-undefined-behavior: store the type name directly at the end of a type descriptor. 5% binary size reduction due to fewer relocations. 
llvm-svn: 165572
 2012-10-09 23:55:19 +00:00
Richard Smith e30752c93b -fcatch-undefined-behavior: emit calls to the runtime library whenever one of the checks fails. 
llvm-svn: 165536
 2012-10-09 19:52:38 +00:00
Micah Villmow dd31ca10ef Move TargetData to DataLayout. 
llvm-svn: 165395
 2012-10-08 16:25:52 +00:00
Richard Smith 639b8d05dd When a bad UTF-8 encoding or bogus escape sequence is encountered in a 
string literal, produce a diagnostic pointing at the erroneous character
range, not at the start of the literal.

llvm-svn: 163459
 2012-09-08 07:16:20 +00:00
Richard Smith 4d1458ed38 -fcatch-undefined-behavior: Factor emission of the creation of, and branch to, 
the trap BB out of the individual checks and into a common function, to prepare
for making this code call into a runtime library. Rename the existing EmitCheck
to EmitTypeCheck to clarify it and to move it out of the way of the new
EmitCheck.

llvm-svn: 163451
 2012-09-08 02:08:36 +00:00
Eli Friedman 34866c7719 Change the representation of builtin functions in the AST 
(__builtin_* etc.) so that it isn't possible to take their address.
Specifically, introduce a new type to represent a reference to a builtin
function, and a new cast kind to convert it to a function pointer in the
operand of a call.  Fixes PR13195.

llvm-svn: 162962
 2012-08-31 00:14:07 +00:00
Richard Smith 69d0d2626a New -fcatch-undefined-behavior features: 
* when checking that a pointer or reference refers to appropriate storage for a type, also check the alignment and perform a null check
 * check that references are bound to appropriate storage
 * check that 'this' has appropriate storage in member accesses and member function calls

llvm-svn: 162523
 2012-08-24 00:54:33 +00:00
Tanya Lattner a9dd49fe5b Convert loads and stores of vec3 to vec4 to achieve better code generation. Add test case. 
llvm-svn: 162002
 2012-08-16 00:10:13 +00:00
Eli Friedman f6d2184c83 Fix an assertion failure with a C++ constructor initializing a 
member of reference type in an anonymous struct.  PR13154.

llvm-svn: 161473
 2012-08-08 03:51:37 +00:00
Chandler Carruth cc8f2a6ab5 Update Clang to reflect the move of MDBuilder in r160237. 
llvm-svn: 160238
 2012-07-15 23:28:01 +00:00
John McCall 8dda7b27ee Distinguish more carefully between free functions and C++ instance methods 
in the ABI arrangement, and leave a hook behind so that we can easily
tweak CCs on platforms that use different CCs by default for C++
instance methods.

llvm-svn: 159894
 2012-07-07 06:41:13 +00:00
Matt Beaumont-Gay 36af16affd Silence warning in -Asserts build 
llvm-svn: 159635
 2012-07-03 03:55:58 +00:00
Nico Weber 4b18c3ff40 Share ConvertUTF8toWide() between Lex and CodeGen. 
llvm-svn: 159634
 2012-07-03 02:24:52 +00:00