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Fix parameter loading.

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This commit is contained in:
losfair
2019-11-13 14:18:21 +08:00
parent c552514fd2
commit 47f1e2a4ef
1 changed files with 42 additions and 5 deletions
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47
lib/singlepass-backend/src/codegen_x64.rs
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@ -163,15 +163,52 @@ lazy_static! {
; ldr x9, >v_65536
; sub sp, sp, x9 // Pre-allocate the WASM stack
// return address
; adr x9, >done
; sub x28, x28, 8
; str x9, [x28] // Keep this consistent with RSP mapping in translator_aarch64
; mov x19, x0 // stack_top
; mov x20, x1 // stack_base
// ctx
; mov X(crate::translator_aarch64::map_gpr(GPR::RDI).x()), x2
// TODO: params
// params
; cmp x20, x19
; b.eq >end_copy_params
; sub x20, x20, 8
; ldr X(crate::translator_aarch64::map_gpr(GPR::RSI).x()), [x20]
; cmp x20, x19
; b.eq >end_copy_params
; sub x20, x20, 8
; ldr X(crate::translator_aarch64::map_gpr(GPR::RDX).x()), [x20]
; cmp x20, x19
; b.eq >end_copy_params
; sub x20, x20, 8
; ldr X(crate::translator_aarch64::map_gpr(GPR::RCX).x()), [x20]
; cmp x20, x19
; b.eq >end_copy_params
; sub x20, x20, 8
; ldr X(crate::translator_aarch64::map_gpr(GPR::R8).x()), [x20]
; cmp x20, x19
; b.eq >end_copy_params
; sub x20, x20, 8
; ldr X(crate::translator_aarch64::map_gpr(GPR::R9).x()), [x20]
; copy_loop:
; cmp x20, x19
; b.eq >end_copy_params
; ldr x21, [x19]
; add x19, x19, 8
; sub x28, x28, 8
; str x21, [x28]
; b <copy_loop
; end_copy_params:
// return address
; adr x9, >done
; sub x28, x28, 8
; str x9, [x28] // Keep this consistent with RSP mapping in translator_aarch64
// Jump to target function!
; br x3