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| author | Khem Raj <raj.khem@gmail.com> | 2011-04-30 12:37:47 -0700 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2011-05-05 11:54:44 +0100 |
| commit | b0d5b9f12adbce2c4a0df6059f5671188cd32293 (patch) | |
| tree | f376fcd2e5dcc46185d73d619ce2eec31320d812 /meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0027-Core-1148.patch | |
| parent | 81859b136c0153e8d5be71d56e910dcc3e8cdb66 (diff) | |
| download | openembedded-core-b0d5b9f12adbce2c4a0df6059f5671188cd32293.tar.gz openembedded-core-b0d5b9f12adbce2c4a0df6059f5671188cd32293.tar.bz2 openembedded-core-b0d5b9f12adbce2c4a0df6059f5671188cd32293.tar.xz openembedded-core-b0d5b9f12adbce2c4a0df6059f5671188cd32293.zip | |
gcc-4.6.0: Backport FSF 4.6 branch patches
This is set of bugfixes that has been done on
FSF gcc-4_2-branch since 4.6.0 was released
They will roll into 4.6.1 release once that
happens in coming approx 6 months time then
we can simply remove them thats the reason
so use a separate .inc file to define the
SRC_URI additions
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0027-Core-1148.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0027-Core-1148.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0027-Core-1148.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0027-Core-1148.patch new file mode 100644 index 000000000..f348e1238 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0027-Core-1148.patch @@ -0,0 +1,59 @@ +From c68e41052387396cba4a066d8e9658dc2011baf0 Mon Sep 17 00:00:00 2001 +From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Tue, 29 Mar 2011 14:25:10 +0000 +Subject: [PATCH 027/200] Core 1148 + * typeck.c (check_return_expr): Fix conditions for setting + LOOKUP_PREFER_RVALUE. + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@171668 138bc75d-0d04-0410-961f-82ee72b054a4 + +index 0e8a6d7..03aa49e 100644 +--- a/gcc/cp/typeck.c ++++ b/gcc/cp/typeck.c +@@ -7760,12 +7760,19 @@ check_return_expr (tree retval, bool *no_warning) + + /* Under C++0x [12.8/16 class.copy], a returned lvalue is sometimes + treated as an rvalue for the purposes of overload resolution to +- favor move constructors over copy constructors. */ +- if ((cxx_dialect != cxx98) +- && named_return_value_okay_p +- /* The variable must not have the `volatile' qualifier. */ +- && !CP_TYPE_VOLATILE_P (TREE_TYPE (retval)) +- /* The return type must be a class type. */ ++ favor move constructors over copy constructors. ++ ++ Note that these conditions are similar to, but not as strict as, ++ the conditions for the named return value optimization. */ ++ if ((cxx_dialect != cxx98) ++ && (TREE_CODE (retval) == VAR_DECL ++ || TREE_CODE (retval) == PARM_DECL) ++ && DECL_CONTEXT (retval) == current_function_decl ++ && !TREE_STATIC (retval) ++ && same_type_p ((TYPE_MAIN_VARIANT (TREE_TYPE (retval))), ++ (TYPE_MAIN_VARIANT ++ (TREE_TYPE (TREE_TYPE (current_function_decl))))) ++ /* This is only interesting for class type. */ + && CLASS_TYPE_P (TREE_TYPE (TREE_TYPE (current_function_decl)))) + flags = flags | LOOKUP_PREFER_RVALUE; + +new file mode 100644 +index 0000000..216b1b5 +--- /dev/null ++++ b/gcc/testsuite/g++.dg/cpp0x/elision2.C +@@ -0,0 +1,13 @@ ++// Core 1148: should be able to move from value parameter on return ++// { dg-options -std=c++0x } ++ ++struct A ++{ ++ A(const A&) = delete; ++ A(A&&); ++}; ++ ++A f (A a) ++{ ++ return a; ++} +-- +1.7.0.4 + |