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get shadow space right

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Folkert 2023-09-17 13:38:11 +02:00
parent 857c48c933
commit 15d7775652
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1 changed files with 8 additions and 3 deletions
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11
crates/compiler/gen_dev/src/generic64/aarch64.rs
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@ -357,7 +357,12 @@ impl CallConv<AArch64GeneralReg, AArch64FloatReg, AArch64Assembler> for AArch64C
AArch64FloatReg::V0,
];
const SHADOW_SPACE_SIZE: u8 = 0;
/// 16 is the size of the pushed return address and base pointer. These are usually stored like so
///
/// 213560: d101c3ff sub sp, sp, #0x70
/// 213564: f90037fe str x30, [sp, #104]
/// 213568: f90033fd str x29, [sp, #96]
const SHADOW_SPACE_SIZE: u8 = 16;
#[inline(always)]
fn general_callee_saved(reg: &AArch64GeneralReg) -> bool {
@ -509,7 +514,7 @@ impl CallConv<AArch64GeneralReg, AArch64FloatReg, AArch64Assembler> for AArch64C
general_i: 0,
float_i: 0,
// 16 is the size of the pushed return address and base pointer.
argument_offset: AArch64Call::SHADOW_SPACE_SIZE as i32 + 16,
argument_offset: AArch64Call::SHADOW_SPACE_SIZE as i32,
};
if AArch64Call::returns_via_arg_pointer(layout_interner, ret_layout) {
@ -548,7 +553,7 @@ impl CallConv<AArch64GeneralReg, AArch64FloatReg, AArch64Assembler> for AArch64C
let mut state = AArch64CallStoreArgs {
general_i: 0,
float_i: 0,
tmp_stack_offset: Self::SHADOW_SPACE_SIZE as i32 + 16,
tmp_stack_offset: Self::SHADOW_SPACE_SIZE as i32,
};
for (sym, in_layout) in args.iter().zip(arg_layouts.iter()) {