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Reduce sig data size by changing sized spaces (#5402)

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* Reduce sig sizes

* Fix test

* Change compute_args_loc to return u32
This commit is contained in:
Timothy Chen
2022-12-12 07:32:30 +08:00
committed by GitHub
parent 244dce93f6
commit 8035945502
5 changed files with 43 additions and 41 deletions
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16
cranelift/codegen/src/isa/aarch64/abi.rs
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@@ -29,7 +29,7 @@ pub(crate) type AArch64Caller = Caller<AArch64MachineDeps>;
/// This is the limit for the size of argument and return-value areas on the
/// stack. We place a reasonable limit here to avoid integer overflow issues
/// with 32-bit arithmetic: for now, 128 MB.
static STACK_ARG_RET_SIZE_LIMIT: u64 = 128 * 1024 * 1024;
static STACK_ARG_RET_SIZE_LIMIT: u32 = 128 * 1024 * 1024;
impl Into<AMode> for StackAMode {
fn into(self) -> AMode {
@@ -94,7 +94,7 @@ impl ABIMachineSpec for AArch64MachineDeps {
args_or_rets: ArgsOrRets,
add_ret_area_ptr: bool,
mut args: ArgsAccumulator<'_>,
) -> CodegenResult<(i64, Option<usize>)>
) -> CodegenResult<(u32, Option<usize>)>
where
I: IntoIterator<Item = &'a ir::AbiParam>,
{
@@ -116,7 +116,7 @@ impl ABIMachineSpec for AArch64MachineDeps {
let mut next_xreg = 0;
let mut next_vreg = 0;
let mut next_stack: u64 = 0;
let mut next_stack: u32 = 0;
let (max_per_class_reg_vals, mut remaining_reg_vals) = match args_or_rets {
ArgsOrRets::Args => (8, 16), // x0-x7 and v0-v7
@@ -152,13 +152,13 @@ impl ABIMachineSpec for AArch64MachineDeps {
if let ir::ArgumentPurpose::StructArgument(size) = param.purpose {
assert_eq!(args_or_rets, ArgsOrRets::Args);
let offset = next_stack as i64;
let size = size as u64;
let size = size;
assert!(size % 8 == 0, "StructArgument size is not properly aligned");
next_stack += size;
args.push(ABIArg::StructArg {
pointer: None,
offset,
size,
size: size as u64,
purpose: param.purpose,
});
continue;
@@ -282,7 +282,7 @@ impl ABIMachineSpec for AArch64MachineDeps {
// Spill to the stack
// Compute the stack slot's size.
let size = (ty_bits(param.value_type) / 8) as u64;
let size = (ty_bits(param.value_type) / 8) as u32;
let size = if is_apple_cc
|| (call_conv.extends_wasmtime() && args_or_rets == ArgsOrRets::Rets)
@@ -308,7 +308,7 @@ impl ABIMachineSpec for AArch64MachineDeps {
// Build the stack locations from each slot
.scan(next_stack, |next_stack, ty| {
let slot_offset = *next_stack as i64;
*next_stack += (ty_bits(ty) / 8) as u64;
*next_stack += (ty_bits(ty) / 8) as u32;
Some((ty, slot_offset))
})
@@ -358,7 +358,7 @@ impl ABIMachineSpec for AArch64MachineDeps {
return Err(CodegenError::ImplLimitExceeded);
}
Ok((next_stack as i64, extra_arg))
Ok((next_stack, extra_arg))
}
fn fp_to_arg_offset(_call_conv: isa::CallConv, _flags: &settings::Flags) -> i64 {