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rustc: Don't interleave allocas with stores when copying arguments to allocas

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This commit is contained in:
Patrick Walton 2011-05-10 18:29:14 -07:00
parent 390ce40165
commit f627c2ff21
1 changed files with 7 additions and 11 deletions
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18
src/comp/middle/trans.rs
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@ -6160,28 +6160,24 @@ fn copy_any_self_to_alloca(@fn_ctxt fcx,
}
fn copy_args_to_allocas(@fn_ctxt fcx,
fn copy_args_to_allocas(@block_ctxt bcx,
vec[ast.arg] args,
vec[ty.arg] arg_tys) {
auto bcx = llallocas_block_ctxt(fcx);
let uint arg_n = 0u;
for (ast.arg aarg in args) {
if (aarg.mode != ast.alias) {
auto arg_t = type_of_arg(fcx.lcx, arg_tys.(arg_n));
auto arg_t = type_of_arg(bcx.fcx.lcx, arg_tys.(arg_n));
auto a = alloca(bcx, arg_t);
auto argval = fcx.llargs.get(aarg.id);
auto argval = bcx.fcx.llargs.get(aarg.id);
bcx.build.Store(argval, a);
// Overwrite the llargs entry for this arg with its alloca.
fcx.llargs.insert(aarg.id, a);
bcx.fcx.llargs.insert(aarg.id, a);
}
arg_n += 1u;
}
fcx.llallocas = bcx.llbb;
}
fn add_cleanups_for_args(&@block_ctxt bcx,
@ -6317,9 +6313,9 @@ fn trans_fn(@local_ctxt cx, &ast._fn f, ast.def_id fid,
}
auto arg_tys = arg_tys_of_fn(fcx.lcx.ccx, ann);
copy_args_to_allocas(fcx, f.decl.inputs, arg_tys);
auto bcx = new_top_block_ctxt(fcx);
copy_args_to_allocas(bcx, f.decl.inputs, arg_tys);
add_cleanups_for_args(bcx, f.decl.inputs, arg_tys);
@ -6431,9 +6427,9 @@ fn trans_obj(@local_ctxt cx, &ast._obj ob, ast.def_id oid,
fn_args, ty_params);
let vec[ty.arg] arg_tys = arg_tys_of_fn(ccx, ann);
copy_args_to_allocas(fcx, fn_args, arg_tys);
auto bcx = new_top_block_ctxt(fcx);
copy_args_to_allocas(bcx, fn_args, arg_tys);
auto lltop = bcx.llbb;
auto self_ty = ret_ty_of_fn(ccx, ann);
@ -6584,9 +6580,9 @@ fn trans_tag_variant(@local_ctxt cx, ast.def_id tag_id,
}
auto arg_tys = arg_tys_of_fn(cx.ccx, variant.node.ann);
copy_args_to_allocas(fcx, fn_args, arg_tys);
auto bcx = new_top_block_ctxt(fcx);
copy_args_to_allocas(bcx, fn_args, arg_tys);
auto lltop = bcx.llbb;
// Cast the tag to a type we can GEP into.