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rustc: Move trans_compare into alt.rs

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Patrick Walton 2012-09-10 15:09:37 -07:00
parent a93de20148
commit d6ceef95ba
1 changed files with 29 additions and 0 deletions
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29
src/rustc/middle/trans/alt.rs
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@ -427,6 +427,35 @@ impl branch_kind : cmp::Eq {
pure fn ne(&&other: branch_kind) -> bool { !self.eq(other) }
}
// Compiles a comparison between two things.
fn trans_compare(cx: block, op: ast::binop, lhs: ValueRef,
_lhs_t: ty::t, rhs: ValueRef, rhs_t: ty::t) -> Result {
let _icx = cx.insn_ctxt("trans_compare");
if ty::type_is_scalar(rhs_t) {
let rs = compare_scalar_types(cx, lhs, rhs, rhs_t, op);
return rslt(rs.bcx, rs.val);
}
// Determine the operation we need.
let llop = {
match op {
ast::eq | ast::ne => C_u8(abi::cmp_glue_op_eq),
ast::lt | ast::ge => C_u8(abi::cmp_glue_op_lt),
ast::le | ast::gt => C_u8(abi::cmp_glue_op_le),
_ => cx.tcx().sess.bug(~"trans_compare got non-comparison-op")
}
};
let cmpval = glue::call_cmp_glue(cx, lhs, rhs, rhs_t, llop);
// Invert the result if necessary.
match op {
ast::eq | ast::lt | ast::le => rslt(cx, cmpval),
ast::ne | ast::ge | ast::gt => rslt(cx, Not(cx, cmpval)),
_ => cx.tcx().sess.bug(~"trans_compare got non-comparison-op")
}
}
fn compile_submatch(bcx: block, m: match_, vals: ~[ValueRef],
chk: Option<mk_fail>, &exits: ~[exit_node]) {
/*