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rustc: Don't try to spill bottom types, since we can't make any assumptions about the type of the ValueRef

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Patrick Walton 2011-09-21 10:54:56 -07:00
parent a034f87146
commit fcd17731cf
1 changed files with 5 additions and 0 deletions
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5
src/comp/middle/trans.rs
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@ -4312,6 +4312,11 @@ fn type_is_immediate(ccx: @crate_ctxt, t: ty::t) -> bool {
fn do_spill(cx: @block_ctxt, v: ValueRef, t: ty::t) -> result {
// We have a value but we have to spill it, and root it, to pass by alias.
let bcx = cx;
if ty::type_is_bot(bcx_tcx(bcx), t) {
ret rslt(bcx, C_null(T_ptr(T_i8())));
}
let r = alloc_ty(bcx, t);
bcx = r.bcx;
let llptr = r.val;