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| author | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-06-03 10:03:11 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-06-03 10:03:11 +0200 |
| commit | 1f91747b1d839ae008e445c82946bc64395177cf (patch) | |
| tree | 7835bea89da405838a720a63a6d6f3bab2d74b35 /gcc/cgraph.c | |
| parent | 47b8392308f4122cb327d351e0f2f34e1b4960bc (diff) | |
| download | gcc-1f91747b1d839ae008e445c82946bc64395177cf.zip gcc-1f91747b1d839ae008e445c82946bc64395177cf.tar.gz gcc-1f91747b1d839ae008e445c82946bc64395177cf.tar.bz2 | |
re PR middle-end/71387 (ICE in emit_move_insn, at expr.c:3418 with -Og)
PR middle-end/71387
* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): If redirecting
to noreturn e->callee->decl that has void return type and void
arguments, adjust gimple_call_fntype and remove lhs even if it had
previously addressable type.
* g++.dg/opt/pr71387.C: New test.
From-SVN: r237053
Diffstat (limited to 'gcc/cgraph.c')
| -rw-r--r-- | gcc/cgraph.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/gcc/cgraph.c b/gcc/cgraph.c index 08bf9bf..e256dd0 100644 --- a/gcc/cgraph.c +++ b/gcc/cgraph.c @@ -1512,8 +1512,20 @@ cgraph_edge::redirect_call_stmt_to_callee (void) update_stmt_fn (DECL_STRUCT_FUNCTION (e->caller->decl), new_stmt); } + /* If changing the call to __cxa_pure_virtual or similar noreturn function, + adjust gimple_call_fntype too. */ + if (gimple_call_noreturn_p (new_stmt) + && VOID_TYPE_P (TREE_TYPE (TREE_TYPE (e->callee->decl))) + && TYPE_ARG_TYPES (TREE_TYPE (e->callee->decl)) + && (TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (e->callee->decl))) + == void_type_node)) + gimple_call_set_fntype (new_stmt, TREE_TYPE (e->callee->decl)); + /* If the call becomes noreturn, remove the LHS if possible. */ - if (gimple_call_noreturn_p (new_stmt) && should_remove_lhs_p (lhs)) + if (lhs + && gimple_call_noreturn_p (new_stmt) + && (VOID_TYPE_P (TREE_TYPE (gimple_call_fntype (new_stmt))) + || should_remove_lhs_p (lhs))) { if (TREE_CODE (lhs) == SSA_NAME) { |