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tree-inline decl_map: skip mapping result's NULL default def
author
Alexandre Oliva
<oliva@adacore.com>
Thu, 29 Dec 2022 17:32:54 +0000
(14:32 -0300)
committer
Alexandre Oliva
<oliva@gnu.org>
Thu, 29 Dec 2022 17:39:46 +0000
(14:39 -0300)
If a result doesn't have a default def, don't attempt to remap it.
for gcc/ChangeLog
* tree-inline.cc (declare_return_variable): Don't remap NULL
default def of result.
gcc/tree-inline.cc
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diff --git
a/gcc/tree-inline.cc
b/gcc/tree-inline.cc
index
bfea1cc
..
4556256
100644
(file)
--- a/
gcc/tree-inline.cc
+++ b/
gcc/tree-inline.cc
@@
-3851,10
+3851,11
@@
declare_return_variable (copy_body_data *id, tree return_slot, tree modify_dest,
it's default_def SSA_NAME. */
if (gimple_in_ssa_p (id->src_cfun)
&& is_gimple_reg (result))
- {
- temp = make_ssa_name (temp);
- insert_decl_map (id, ssa_default_def (id->src_cfun, result), temp);
- }
+ if (tree default_def = ssa_default_def (id->src_cfun, result))
+ {
+ temp = make_ssa_name (temp);
+ insert_decl_map (id, default_def, temp);
+ }
insert_init_stmt (id, entry_bb, gimple_build_assign (temp, var));
}
else