diff options
Diffstat (limited to 'util/romcc')
| -rw-r--r-- | util/romcc/romcc.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/util/romcc/romcc.c b/util/romcc/romcc.c index b6f68409be..b961d66c32 100644 --- a/util/romcc/romcc.c +++ b/util/romcc/romcc.c @@ -1896,16 +1896,12 @@ static void use_triple(struct triple *used, struct triple *user) return; if (!user) return; - if (used->use == (void*)-1) - used->use = 0; - if (used->use) { - ptr = &used->use; - while(*ptr) { - if ((*ptr)->member == user) { - return; - } - ptr = &(*ptr)->next; + ptr = &used->use; + while(*ptr) { + if ((*ptr)->member == user) { + return; } + ptr = &(*ptr)->next; } /* Append new to the head of the list, * copy_func and rename_block_variables @@ -11557,7 +11553,7 @@ static struct triple *constant_expr(struct compile_state *state) static struct triple *assignment_expr(struct compile_state *state) { - struct triple *def, *left, *left2, *right; + struct triple *def, *left, *right; int tok, op, sign; /* The C grammer in K&R shows assignment expressions * only taking unary expressions as input on their @@ -11578,9 +11574,6 @@ 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); @@ -11606,19 +11599,19 @@ static struct triple *assignment_expr(struct compile_state *state) } def = write_expr(state, left, triple(state, op, left->type, - read_expr(state, left2), right)); + read_expr(state, left), right)); break; case TOK_PLUSEQ: lvalue(state, left); eat(state, TOK_PLUSEQ); def = write_expr(state, left, - mk_add_expr(state, left2, assignment_expr(state))); + mk_add_expr(state, left, assignment_expr(state))); break; case TOK_MINUSEQ: lvalue(state, left); eat(state, TOK_MINUSEQ); def = write_expr(state, left, - mk_sub_expr(state, left2, assignment_expr(state))); + mk_sub_expr(state, left, assignment_expr(state))); break; case TOK_SLEQ: case TOK_SREQ: @@ -11642,7 +11635,7 @@ static struct triple *assignment_expr(struct compile_state *state) } def = write_expr(state, left, triple(state, op, left->type, - read_expr(state, left2), right)); + read_expr(state, left), right)); break; } return def; |