Files
wasmtime/cranelift/filetests/isa/x86/probestack.clif
2018-07-13 09:15:16 -07:00

50 lines
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test compile
set colocated_libcalls=1
target x86_64
; A function with a big stack frame. This should have a stack probe.
function %big() system_v {
ss0 = explicit_slot 4097
ebb0:
return
}
; check: function %big(i64 fp [%rbp]) -> i64 fp [%rbp] system_v {
; nextln: ss0 = explicit_slot 4097, offset -4113
; nextln: ss1 = incoming_arg 16, offset -16
; nextln: sig0 = (i64 [%rax]) -> i64 [%rax] probestack
; nextln: fn0 = colocated %Probestack sig0
; nextln:
; nextln: ebb0(v0: i64 [%rbp]):
; nextln: [RexOp1pushq#50] x86_push v0
; nextln: [RexOp1copysp#8089] copy_special %rsp -> %rbp
; nextln: [RexOp1pu_id#b8,%rax] v1 = iconst.i64 4112
; nextln: [Op1call_id#e8,%rax] v2 = call fn0(v1)
; nextln: [RexOp1adjustsp#8029] adjust_sp_down v2
; nextln: [RexOp1adjustsp_id#8081] adjust_sp_up_imm 4112
; nextln: [RexOp1popq#58,%rbp] v3 = x86_pop.i64
; nextln: [Op1ret#c3] return v3
; nextln: }
; A function with a small enough stack frame. This shouldn't have a stack probe.
function %small() system_v {
ss0 = explicit_slot 4096
ebb0:
return
}
; check: function %small(i64 fp [%rbp]) -> i64 fp [%rbp] system_v {
; nextln: ss0 = explicit_slot 4096, offset -4112
; nextln: ss1 = incoming_arg 16, offset -16
; nextln:
; nextln: ebb0(v0: i64 [%rbp]):
; nextln: [RexOp1pushq#50] x86_push v0
; nextln: [RexOp1copysp#8089] copy_special %rsp -> %rbp
; nextln: [RexOp1adjustsp_id#d081] adjust_sp_down_imm 4096
; nextln: [RexOp1adjustsp_id#8081] adjust_sp_up_imm 4096
; nextln: [RexOp1popq#58,%rbp] v1 = x86_pop.i64
; nextln: [Op1ret#c3] return v1
; nextln: }