diff options
Diffstat (limited to 'util/romcc/romcc.c')
| -rw-r--r-- | util/romcc/romcc.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/util/romcc/romcc.c b/util/romcc/romcc.c index 5fa7ede182..b6f68409be 100644 --- a/util/romcc/romcc.c +++ b/util/romcc/romcc.c @@ -11557,7 +11557,7 @@ static struct triple *constant_expr(struct compile_state *state) static struct triple *assignment_expr(struct compile_state *state) { - struct triple *def, *left, *right; + struct triple *def, *left, *left2, *right; int tok, op, sign; /* The C grammer in K&R shows assignment expressions * only taking unary expressions as input on their @@ -11578,6 +11578,9 @@ static struct triple *assignment_expr(struct compile_state *state) */ def = conditional_expr(state); left = def; + left2 = left; + if (!(left2->id & TRIPLE_FLAG_FLATTENED)) + left2 = copy_triple(state, left2); switch((tok = peek(state))) { case TOK_EQ: lvalue(state, left); @@ -11603,19 +11606,19 @@ static struct triple *assignment_expr(struct compile_state *state) } def = write_expr(state, left, triple(state, op, left->type, - read_expr(state, copy_triple(state, left)), right)); + read_expr(state, left2), right)); break; case TOK_PLUSEQ: lvalue(state, left); eat(state, TOK_PLUSEQ); def = write_expr(state, left, - mk_add_expr(state, copy_triple(state, left), assignment_expr(state))); + mk_add_expr(state, left2, assignment_expr(state))); break; case TOK_MINUSEQ: lvalue(state, left); eat(state, TOK_MINUSEQ); def = write_expr(state, left, - mk_sub_expr(state, copy_triple(state, left), assignment_expr(state))); + mk_sub_expr(state, left2, assignment_expr(state))); break; case TOK_SLEQ: case TOK_SREQ: @@ -11639,7 +11642,7 @@ static struct triple *assignment_expr(struct compile_state *state) } def = write_expr(state, left, triple(state, op, left->type, - read_expr(state, copy_triple(state,left)), right)); + read_expr(state, left2), right)); break; } return def; |