https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124135
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
--- gcc/tree-inline.cc.jj 2026-02-17 15:56:32.000000000 +0100
+++ gcc/tree-inline.cc 2026-03-05 18:39:59.590916480 +0100
@@ -5336,7 +5336,20 @@ expand_call_inline (basic_block bb, gimp
if (use_retvar && gimple_call_lhs (stmt))
{
gimple *old_stmt = stmt;
- stmt = gimple_build_assign (gimple_call_lhs (stmt), use_retvar);
+ tree lhs = gimple_call_lhs (stmt);
+ if (!is_gimple_reg (lhs)
+ && !is_gimple_reg (use_retvar)
+ && is_gimple_reg_type (TREE_TYPE (lhs)))
+ {
+ /* If both lhs and use_retvar aren't gimple regs, yet have
+ gimple reg type, copy through a temporary SSA_NAME. */
+ gimple *g = gimple_build_assign (make_ssa_name (TREE_TYPE (lhs)),
+ use_retvar);
+ gimple_set_location (g, gimple_location (old_stmt));
+ gsi_insert_before (&stmt_gsi, g, GSI_SAME_STMT);
+ use_retvar = gimple_assign_lhs (g);
+ }
+ stmt = gimple_build_assign (lhs, use_retvar);
gimple_set_location (stmt, gimple_location (old_stmt));
gsi_replace (&stmt_gsi, stmt, false);
maybe_clean_or_replace_eh_stmt (old_stmt, stmt);
fixes this.
