1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme -O0 < %s | FileCheck %s
; Example of locally streaming function that (at -O0) must preserve the LR (X30)
; before calling __arm_get_current_vg.
define void @foo() "aarch64_pstate_sm_body" {
; CHECK-LABEL: foo:
; CHECK: // %bb.0:
; CHECK-NEXT: stp d15, d14, [sp, #-96]! // 16-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 96
; CHECK-NEXT: stp d13, d12, [sp, #16] // 16-byte Folded Spill
; CHECK-NEXT: stp d11, d10, [sp, #32] // 16-byte Folded Spill
; CHECK-NEXT: stp d9, d8, [sp, #48] // 16-byte Folded Spill
; CHECK-NEXT: str x30, [sp, #64] // 8-byte Folded Spill
; CHECK-NEXT: rdsvl x9, #1
; CHECK-NEXT: lsr x9, x9, #3
; CHECK-NEXT: str x9, [sp, #72] // 8-byte Folded Spill
; CHECK-NEXT: bl __arm_get_current_vg
; CHECK-NEXT: str x0, [sp, #80] // 8-byte Folded Spill
; CHECK-NEXT: .cfi_offset vg, -16
; CHECK-NEXT: .cfi_offset w30, -32
; CHECK-NEXT: .cfi_offset b8, -40
; CHECK-NEXT: .cfi_offset b9, -48
; CHECK-NEXT: .cfi_offset b10, -56
; CHECK-NEXT: .cfi_offset b11, -64
; CHECK-NEXT: .cfi_offset b12, -72
; CHECK-NEXT: .cfi_offset b13, -80
; CHECK-NEXT: .cfi_offset b14, -88
; CHECK-NEXT: .cfi_offset b15, -96
; CHECK-NEXT: smstart sm
; CHECK-NEXT: smstop sm
; CHECK-NEXT: ldr x30, [sp, #64] // 8-byte Folded Reload
; CHECK-NEXT: ldp d9, d8, [sp, #48] // 16-byte Folded Reload
; CHECK-NEXT: ldp d11, d10, [sp, #32] // 16-byte Folded Reload
; CHECK-NEXT: ldp d13, d12, [sp, #16] // 16-byte Folded Reload
; CHECK-NEXT: ldp d15, d14, [sp], #96 // 16-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: .cfi_restore b8
; CHECK-NEXT: .cfi_restore b9
; CHECK-NEXT: .cfi_restore b10
; CHECK-NEXT: .cfi_restore b11
; CHECK-NEXT: .cfi_restore b12
; CHECK-NEXT: .cfi_restore b13
; CHECK-NEXT: .cfi_restore b14
; CHECK-NEXT: .cfi_restore b15
; CHECK-NEXT: ret
ret void
}
|
