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Author SHA1 Message Date
Fangrui Song dbc96b518b Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" 
This reverts commit 789a46f2d7.

Accidentally committed.
 2020-02-03 10:09:39 -08:00
Fangrui Song 789a46f2d7 [CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition 
Summary:
Clang -fpic defaults to -fno-semantic-interposition (GCC -fpic defaults
to -fsemantic-interposition).
Users need to specify -fsemantic-interposition to get semantic
interposition behavior.

Semantic interposition is currently a best-effort feature. There may
still be some cases where it is not handled well.

Reviewers: peter.smith, rnk, serge-sans-paille, sfertile, jfb, jdoerfert

Subscribers: dschuff, jyknight, dylanmckay, nemanjai, jvesely, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, arphaman, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73865
 2020-02-03 09:52:48 -08:00
Eli Friedman fcec630a57 Fix the representation of wide strings in the AST and IR so that it uses the native representation of integers for the elements. This fixes a bunch of nastiness involving 
treating wide strings as a series of bytes.

Patch by Seth Cantrell.

llvm-svn: 143417
 2011-11-01 02:23:42 +00:00
Chris Lattner a5f58b05e8 clang side to match the LLVM IR type system rewrite patch. 
llvm-svn: 134831
 2011-07-09 17:41:47 +00:00
Chris Lattner e64d7ba153 Update to match mainline ConstantStruct::get API change. Also, use 
ConvertType on InitListExprs as they are being converted.  This is
needed for a forthcoming patch, and improves the IR generated anyway
(see additional type names in testcases). 

This patch also converts a bunch of std::vector's in CGObjCMac to use
C arrays.  There are a ton more that should be converted as well.

llvm-svn: 133413
 2011-06-20 04:01:35 +00:00
Nuno Lopes 247a138ec6 recommit r101568 to fix PR6766 
as a side-effect, remove two FIXMEs now fixed

llvm-svn: 101726
 2010-04-18 19:06:43 +00:00
Chris Lattner b714a4b4a0 revert r101568, which miscompiles this testcase, distilled from ldecod: 
void exit_picture()
{
  char yuv_types[4][6]= {"4:0:0","4:2:0","4:2:2","4:4:4"};
  foo(yuv_types);
}

llvm-svn: 101623
 2010-04-17 06:53:44 +00:00
Nuno Lopes 74b595256a fix PR6766: codegen of var initialized with wide char 
llvm-svn: 101568
 2010-04-16 23:19:41 +00:00
Nuno Lopes 5863c999e7 emit padding as undef values, take 2 
merge also a few tests I had here for this feature, and FileCheck'ize one file

llvm-svn: 101535
 2010-04-16 20:56:35 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. 
- This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

llvm-svn: 91446
 2009-12-15 20:14:24 +00:00
Chris Lattner 2375952a47 these tests include section specifiers that aren't valid on the 
mac, use an explicit triple.

llvm-svn: 78583
 2009-08-10 18:56:44 +00:00
Chris Lattner f49573d1ee weak globals that are const should get weak_odr linkage. 
add a fixme about C++ const.

llvm-svn: 78159
 2009-08-05 05:20:29 +00:00
Chris Lattner c0693bc2ea rdar://7119244 - globals with an explicit section specified don't get 
common linkage.

llvm-svn: 78158
 2009-08-05 04:56:58 +00:00
Daniel Dunbar a45cf5b6b0 Rename clang to clang-cc. 
Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
 2009-03-24 02:24:46 +00:00
Anders Carlsson 6a113d9ddb If a global var decl has an initializer, make sure to always set its linkage to external. 
llvm-svn: 60462
 2008-12-03 05:51:23 +00:00