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Add back support for accumulating outgoing arguments

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The unwind rework (commit 2d5db92a) removed support for the
feature to allow a target to allocate the space for outgoing
function arguments right in the prologue (originally added
via commit 80c2d70d).   This patch adds it back.
This commit is contained in:
Ulrich Weigand
2021-04-14 13:51:16 +02:00
parent 67cc42d4c3
commit 336c6369b4
5 changed files with 37 additions and 0 deletions
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2
cranelift/codegen/src/isa/aarch64/abi.rs
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@@ -587,6 +587,7 @@ impl ABIMachineSpec for AArch64MachineDeps {
flags: &settings::Flags,
clobbers: &Set<Writable<RealReg>>,
fixed_frame_storage_size: u32,
_outgoing_args_size: u32,
) -> (u64, SmallVec<[Inst; 16]>) {
let mut insts = SmallVec::new();
let (clobbered_int, clobbered_vec) = get_regs_saved_in_prologue(call_conv, clobbers);
@@ -691,6 +692,7 @@ impl ABIMachineSpec for AArch64MachineDeps {
flags: &settings::Flags,
clobbers: &Set<Writable<RealReg>>,
fixed_frame_storage_size: u32,
_outgoing_args_size: u32,
) -> SmallVec<[Inst; 16]> {
let mut insts = SmallVec::new();
let (clobbered_int, clobbered_vec) = get_regs_saved_in_prologue(call_conv, clobbers);