diff --git a/gcc/gimplify.cc b/gcc/gimplify.cc index 2ac7ca0855e5196f002580aab3b695d160306d76..f0fbdb48012b08f29da51327fe9ed26757aa734b 100644 --- a/gcc/gimplify.cc +++ b/gcc/gimplify.cc @@ -5488,8 +5488,11 @@ gimplify_init_constructor (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p, if (ret == GS_ERROR) return GS_ERROR; /* If we have gimplified both sides of the initializer but have - not emitted an assignment, do so now. */ - if (*expr_p) + not emitted an assignment, do so now. */ + if (*expr_p + /* If the type is an empty type, we don't need to emit the + assignment. */ + && !is_empty_type (TREE_TYPE (TREE_OPERAND (*expr_p, 0)))) { tree lhs = TREE_OPERAND (*expr_p, 0); tree rhs = TREE_OPERAND (*expr_p, 1); diff --git a/gcc/testsuite/gcc.dg/pr87052.c b/gcc/testsuite/gcc.dg/pr87052.c index 18e092c46744ea42a761e1034e30fc721d4c6496..796fe6440c174a9816678e6ca4181c48f0ea6032 100644 --- a/gcc/testsuite/gcc.dg/pr87052.c +++ b/gcc/testsuite/gcc.dg/pr87052.c @@ -23,8 +23,7 @@ void test (void) const char d[0] = { }; - /* Expect the following: - d = ""; */ + /* Expect nothing. */ const char e[0] = ""; @@ -36,6 +35,7 @@ void test (void) /* { dg-final { scan-tree-dump-times "a = \"\\\\x00ab\";" 1 "gimple" } } { dg-final { scan-tree-dump-times "b = \"a\\\\x00bc\";" 1 "gimple" } } { dg-final { scan-tree-dump-times "c = \"\";" 1 "gimple" } } - { dg-final { scan-tree-dump-times "d = { *};" 1 "gimple" } } + { dg-final { scan-tree-dump-times "d = " 1 "gimple" } } + { dg-final { scan-tree-dump-times "d = {CLOBBER\\(eol\\)}" 1 "gimple" } } { dg-final { scan-tree-dump-times "e = " 1 "gimple" } } { dg-final { scan-tree-dump-times "e = {CLOBBER\\(eol\\)}" 1 "gimple" } } */