| commit | 8ac0f7677f9a317c9dee0168313fc411b3745f78 | |
| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Sat, 2 Dec 2017 00:38:54 +0000 (2 00:38 +0000) | ||
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Sat, 2 Dec 2017 00:38:54 +0000 (2 00:38 +0000) | ||
| tree | 8d0aee02a39a2db4df11c4755923b7677cdae58a | treesnapshot (tar.gz zip) |
| parent | dc75b246913c77d85231262e1ab5f3d9cdabd6ed | commitdiff |
compiler: avoid GCC middle-end control warnings
GCC has started emitting "control reaches end of non-void function"
warnings. Avoid them for Go by 1) marking the builtin function panic
and the compiler-generated function __go_runtime_error as not
returning and 2) adding a default case to the switch used for select
statements that simply calls __builtin_unreachable.
Fixes golang/go#22767
Reviewed-on: https://go-review.googlesource.com/80416
* go-gcc.cc (Gcc_backend::Gcc_backend): Define
__builtin_unreachable.
(Gcc_backend::function): Add does_not_return parameter.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255346 138bc75d-0d04-0410-961f-82ee72b054a4
GCC has started emitting "control reaches end of non-void function"
warnings. Avoid them for Go by 1) marking the builtin function panic
and the compiler-generated function __go_runtime_error as not
returning and 2) adding a default case to the switch used for select
statements that simply calls __builtin_unreachable.
Fixes golang/go#22767
Reviewed-on: https://go-review.googlesource.com/80416
* go-gcc.cc (Gcc_backend::Gcc_backend): Define
__builtin_unreachable.
(Gcc_backend::function): Add does_not_return parameter.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255346 138bc75d-0d04-0410-961f-82ee72b054a4