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Implement stack_addr, stack_load, stack_store for x86-64. (#370)

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This commit is contained in:
Dan Gohman
2018-06-26 06:15:21 -07:00
committed by GitHub
parent fbd637e142
commit 7d2b44289c
6 changed files with 179 additions and 1 deletions
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45
cranelift/filetests/isa/x86/stack-addr64.cton Normal file
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; binary emission of stack address instructions on x86-64.
test binemit
set opt_level=fastest
target x86_64 haswell
; The binary encodings can be verified with the command:
;
; sed -ne 's/^ *; asm: *//p' filetests/isa/x86/stack-addr64.cton | llvm-mc -show-encoding -triple=x86_64
;
function %stack_addr() {
ss0 = incoming_arg 8, offset 0
ss1 = incoming_arg 1024, offset -1024
ss2 = incoming_arg 1024, offset -2048
ss3 = incoming_arg 8, offset -2056
ss4 = explicit_slot 8, offset 0
ss5 = explicit_slot 8, offset 1024
ebb0:
[-,%rcx] v0 = stack_addr.i64 ss0 ; bin: 48 8d 8c 24 00000808
[-,%rcx] v1 = stack_addr.i64 ss1 ; bin: 48 8d 8c 24 00000408
[-,%rcx] v2 = stack_addr.i64 ss2 ; bin: 48 8d 8c 24 00000008
[-,%rcx] v3 = stack_addr.i64 ss3 ; bin: 48 8d 8c 24 00000000
[-,%rcx] v4 = stack_addr.i64 ss4 ; bin: 48 8d 8c 24 00000808
[-,%rcx] v5 = stack_addr.i64 ss5 ; bin: 48 8d 8c 24 00000c08
[-,%rcx] v20 = stack_addr.i64 ss4+1 ; bin: 48 8d 8c 24 00000809
[-,%rcx] v21 = stack_addr.i64 ss4+2 ; bin: 48 8d 8c 24 0000080a
[-,%rcx] v22 = stack_addr.i64 ss4+2048 ; bin: 48 8d 8c 24 00001008
[-,%rcx] v23 = stack_addr.i64 ss4-4096 ; bin: 48 8d 8c 24 fffff808
[-,%r8] v50 = stack_addr.i64 ss0 ; bin: 4c 8d 84 24 00000808
[-,%r8] v51 = stack_addr.i64 ss1 ; bin: 4c 8d 84 24 00000408
[-,%r8] v52 = stack_addr.i64 ss2 ; bin: 4c 8d 84 24 00000008
[-,%r8] v53 = stack_addr.i64 ss3 ; bin: 4c 8d 84 24 00000000
[-,%r8] v54 = stack_addr.i64 ss4 ; bin: 4c 8d 84 24 00000808
[-,%r8] v55 = stack_addr.i64 ss5 ; bin: 4c 8d 84 24 00000c08
[-,%r8] v70 = stack_addr.i64 ss4+1 ; bin: 4c 8d 84 24 00000809
[-,%r8] v71 = stack_addr.i64 ss4+2 ; bin: 4c 8d 84 24 0000080a
[-,%r8] v72 = stack_addr.i64 ss4+2048 ; bin: 4c 8d 84 24 00001008
[-,%r8] v73 = stack_addr.i64 ss4-4096 ; bin: 4c 8d 84 24 fffff808
return
}

21
cranelift/filetests/isa/x86/stack-load-store64.cton Normal file
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; legalization of stack load and store instructions on x86-64.
test legalizer
set opt_level=fastest
target x86_64 haswell
function %stack_load_and_store() {
ss0 = explicit_slot 8, offset 0
ebb0:
v0 = stack_load.i64 ss0
; check: v1 = stack_addr.i64 ss0
; check: v0 = load.i64 notrap aligned v1
stack_store.i64 v0, ss0
; check: v2 = stack_addr.i64 ss0
; check: store notrap aligned v0, v2
return
}