9dc6eef755
Restore r184205 and associated commits (after commit of r185290)
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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
19cee1871e
Revert r184205 and associated patches while investigating issue with broken buildbot (possible interaction with LTO)
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<rdar://problem/14209661>
llvm-svn: 184384
2013-06-19 23:23:19 +00:00
a637fb8ccd
CodeGen: Have 'this'-returning constructors and destructors to take advantage of the new backend 'returned' attribute.
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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
60761490f2
Provide fixed target triples to make test results consistent across ARM hosts.
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Patch by David Tweed, review by myself and John McCall.
llvm-svn: 163564
2012-09-10 23:06:08 +00:00
d2f7007e09
Only make a call to a copy constructor elidable if in fact we are
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doing a copy. Fixes PR12139.
llvm-svn: 152485
2012-03-10 06:53:13 +00:00
a5f58b05e8
clang side to match the LLVM IR type system rewrite patch.
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llvm-svn: 134831
2011-07-09 17:41:47 +00:00
50ed150632
Whack a bunch of tests in CodeGenCXX to work on ARM (using ARM ABI). Batch 2 of 3.
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llvm-svn: 133011
2011-06-14 21:20:53 +00:00
a526f275e3
Whack a bunch of tests in CodeGenCXX to work on ARM (using ARM ABI). Batch 1 of 3 or so.
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llvm-svn: 132945
2011-06-13 22:51:21 +00:00
05842dabb8
Move unnamed_addr after the function arguments on Sabre's request.
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llvm-svn: 124210
2011-01-25 19:10:24 +00:00
0ee986c1f1
Add unnamed_addr to constructors and destructors.
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llvm-svn: 123197
2011-01-11 00:26:26 +00:00
66bbf50877
Look through parentheses when deciding whether an expr is a temporary object. Fixes PR8683.
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llvm-svn: 120247
2010-11-28 16:40:49 +00:00
ec3a3f5257
Do not elide copy construction when we're performing base-class initialization
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llvm-svn: 111783
2010-08-22 18:27:02 +00:00
fddc26cc64
Make copy constructor elimination work in more cases; the case in question
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here affects clang-on-clang.
llvm-svn: 92151
2009-12-24 23:33:34 +00:00
Stephen Lin