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9 Commits

Author SHA1 Message Date
NAKAMURA Takumi 9f6383c741 clang/test/CodeGenCXX/builtins.cpp: Fix for -Asserts. 
- Don't seek "entry:" It dosen't appear with -Asserts.
  - Take care that Codegen'ed Instruction(s) wouldn't have name(s) in -Asserts.

llvm-svn: 193908
 2013-11-02 02:58:42 +00:00
Warren Hunt 5d80bfa746 Adding triple to lit test fixed in r193901 
llvm-svn: 193902
 2013-11-02 00:34:45 +00:00
Warren Hunt 4349ec4e03 Fixes lit test that doesn't fail on windows 
long in linux 64 is 64 bits but is always 32 bits on windows.  The lit test was modified 
to use long long instead of long and check for 64-bit mangling.

llvm-svn: 193901
 2013-11-02 00:12:15 +00:00
Warren Hunt 445d83eb47 Wraps lazily generated builtins in an extern "C" context 
Differential Revision: http://llvm-reviews.chandlerc.com/D2082

Adds a lang_c LinkageSpecDecl to lazily generated builtins. This enforces correct 
behavior for builtins in a variety of cases without special treatment elsewhere within 
the compiler (special treatment is removed by the patch). It also allows for C++ 
overloads of builtin functions, which Microsoft uses in their headers e.g. 
_InterlockedExchangeAdd is an extern C builtin for the long type but an inline wrapper 
for int type.

llvm-svn: 193896
 2013-11-01 23:46:51 +00:00
Richard Smith 6cbd65d84d Add a __builtin_addressof that performs the same functionality as the built-in 
& operator (ignoring any overloaded operator& for the type). The purpose of
this builtin is for use in std::addressof, to allow it to be made constexpr;
the existing implementation technique (reinterpret_cast to some reference type,
take address, reinterpert_cast back) does not permit this because
reinterpret_cast between reference types is not permitted in a constant
expression in C++11 onwards.

llvm-svn: 186053
 2013-07-11 02:27:57 +00:00
Tim Northover dd9809dd72 Permit ABIs where the caller extends the result (test change). 
This test was written to make sure *something* sane is generated, not
to test any ABI's signedness semantics.

This should allow the test to pass if AArch64 is the default target.

llvm-svn: 174618
 2013-02-07 15:11:36 +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
Douglas Gregor e0e9630e07 When extracting the callee declaration from a call expression, be sure 
to look through SubstNonTypeTemplateParmExprs. Then, update the IR
generation of CallExprs to actually use CallExpr::getCalleeDecl()
rather than attempting to mimick its behavior (badly).

Fixes <rdar://problem/10063539>.

llvm-svn: 139185
 2011-09-06 21:41:04 +00:00
Douglas Gregor 9246b6830a In C++, if the user redeclares a builtin function with a type that is 
inconsistent with the type that the builtin *should* have, forget
about the builtin altogether: we don't want subsequence analyses,
CodeGen, etc., to think that we have a proper builtin function.

C is protected from errors here because it allows one to use a
library builtin without having a declaration, and detects inconsistent
(re-)declarations of builtins during declaration merging. C++ was
unprotected, and therefore would crash.

Fixes PR8839.

llvm-svn: 122351
 2010-12-21 19:47:46 +00:00