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coroutines: Avoid a maybe used uninitialized warning. NFC.

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This avoids a (bogus) warning that occurs with some bootstrap
compilers.

gcc/cp/ChangeLog:

2020-05-17  Iain Sandoe  <iain@sandoe.co.uk>

	* coroutines.cc (morph_fn_to_coro): Initialize the
	gro variable.
This commit is contained in:
Iain Sandoe 2020-05-17 12:26:19 +01:00
parent 4c1b27f961
commit 2b9a271b2d
2 changed files with 6 additions and 1 deletions
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4
gcc/cp/ChangeLog
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@ -1,3 +1,7 @@
2020-05-17 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (morph_fn_to_coro): Initialize the gro variable.
2020-05-16 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (finish_co_return_stmt): Implement rules

3
gcc/cp/coroutines.cc
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@ -4285,7 +4285,8 @@ morph_fn_to_coro (tree orig, tree *resumer, tree *destroyer)
tree gro_context_body = push_stmt_list ();
bool gro_is_void_p = VOID_TYPE_P (TREE_TYPE (get_ro));
tree gro, gro_bind_vars = NULL_TREE;
tree gro = NULL_TREE;
tree gro_bind_vars = NULL_TREE;
/* We have to sequence the call to get_return_object before initial
suspend. */
if (gro_is_void_p)