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Replace ByVal attribute with on_stack field for Indirect

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This makes it clearer that only PassMode::Indirect allows ByVal
This commit is contained in:
bjorn3
2020-11-14 14:29:40 +01:00
parent 967a228208
commit 42b0b8080d
5 changed files with 102 additions and 57 deletions
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4
compiler/rustc_codegen_ssa/src/mir/block.rs
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@@ -255,7 +255,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
return;
}
let llval = match self.fn_abi.ret.mode {
PassMode::Ignore | PassMode::Indirect(..) => {
PassMode::Ignore | PassMode::Indirect { .. } => {
bx.ret_void();
return;
}
@@ -1101,7 +1101,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
// Force by-ref if we have to load through a cast pointer.
let (mut llval, align, by_ref) = match op.val {
Immediate(_) | Pair(..) => match arg.mode {
PassMode::Indirect(..) | PassMode::Cast(_) => {
PassMode::Indirect { .. } | PassMode::Cast(_) => {
let scratch = PlaceRef::alloca(bx, arg.layout);
op.val.store(bx, scratch);
(scratch.llval, scratch.align, true)