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15 Commits

Author SHA1 Message Date
Nick Lewycky 9b46eb8112 Add 'nonnull' parameter or return attribute when producing an llvm pointer type in a function type where the C++ type is a reference. Update the tests. 
llvm-svn: 209723
 2014-05-28 09:56:42 +00:00
Stephen Lin 4362261b00 CHECK-LABEL-ify some code gen tests to improve diagnostic experience when tests fail. 
llvm-svn: 188447
 2013-08-15 06:47:53 +00:00
Stephen Lin 9dc6eef755 Restore r184205 and associated commits (after commit of r185290) 
This allows clang to use the backend parameter attribute 'returned' when generating 'this'-returning constructors and destructors in ARM and MSVC C++ ABIs.

llvm-svn: 185291
 2013-06-30 20:40:16 +00:00
Stephen Lin 19cee1871e Revert r184205 and associated patches while investigating issue with broken buildbot (possible interaction with LTO) 
<rdar://problem/14209661>

llvm-svn: 184384
 2013-06-19 23:23:19 +00:00
Stephen Lin a637fb8ccd CodeGen: Have 'this'-returning constructors and destructors to take advantage of the new backend 'returned' attribute. 
The backend will now use the generic 'returned' attribute to form tail calls where possible, as well as avoid save-restores of 'this' in some cases (specifically the cases that matter for the ARM C++ ABI).

This patch also reverts a prior front-end only partial implementation of these optimizations, since it's no longer required.

llvm-svn: 184205
 2013-06-18 17:00:49 +00:00
David Blaikie 60761490f2 Provide fixed target triples to make test results consistent across ARM hosts. 
Patch by David Tweed, review by myself and John McCall.

llvm-svn: 163564
 2012-09-10 23:06:08 +00:00
Douglas Gregor d2f7007e09 Only make a call to a copy constructor elidable if in fact we are 
doing a copy. Fixes PR12139.

llvm-svn: 152485
 2012-03-10 06:53:13 +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
Eli Friedman 50ed150632 Whack a bunch of tests in CodeGenCXX to work on ARM (using ARM ABI). Batch 2 of 3. 
llvm-svn: 133011
 2011-06-14 21:20:53 +00:00
Eli Friedman a526f275e3 Whack a bunch of tests in CodeGenCXX to work on ARM (using ARM ABI). Batch 1 of 3 or so. 
llvm-svn: 132945
 2011-06-13 22:51:21 +00:00
Rafael Espindola 05842dabb8 Move unnamed_addr after the function arguments on Sabre's request. 
llvm-svn: 124210
 2011-01-25 19:10:24 +00:00
Rafael Espindola 0ee986c1f1 Add unnamed_addr to constructors and destructors. 
llvm-svn: 123197
 2011-01-11 00:26:26 +00:00
Anders Carlsson 66bbf50877 Look through parentheses when deciding whether an expr is a temporary object. Fixes PR8683. 
llvm-svn: 120247
 2010-11-28 16:40:49 +00:00
Douglas Gregor ec3a3f5257 Do not elide copy construction when we're performing base-class initialization 
llvm-svn: 111783
 2010-08-22 18:27:02 +00:00
Eli Friedman fddc26cc64 Make copy constructor elimination work in more cases; the case in question 
here affects clang-on-clang.

llvm-svn: 92151
 2009-12-24 23:33:34 +00:00