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
|
# RUN: llc -mtriple=arm64-applie-ios7.0 -start-before=aarch64-lower-homogeneous-prolog-epilog -homogeneous-prolog-epilog %s -o - | FileCheck %s
#
# This test ensure no outlined epilog is formed when X16 is live across the helper.
--- |
@FuncPtr = local_unnamed_addr global ptr null, align 8
define i32 @_Z3fooi(i32) minsize "frame-pointer"="all" {
ret i32 0
}
declare i32 @_Z3gooii(i32, i32)
...
---
name: _Z3fooi
tracksRegLiveness: true
body: |
bb.0:
liveins: $w0, $lr, $x19, $x20
successors: %bb.1
frame-setup HOM_Prolog $lr, $fp, $x19, $x20, 16
frame-setup CFI_INSTRUCTION def_cfa $w29, 16
frame-setup CFI_INSTRUCTION offset $w30, -8
frame-setup CFI_INSTRUCTION offset $w29, -16
frame-setup CFI_INSTRUCTION offset $w19, -24
frame-setup CFI_INSTRUCTION offset $w20, -32
$w19 = nsw ADDWri $w0, 1, 0
$w1 = ORRWrr $wzr, $w0
$w0 = ORRWrr $wzr, $w19
BL @_Z3gooii, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $w0, implicit $w1, implicit-def $sp, implicit-def $w0
$x8 = ADRP target-flags(aarch64-page) @FuncPtr
$x16 = LDRXui killed renamable $x8, target-flags(aarch64-pageoff, aarch64-nc) @FuncPtr
$w0 = nsw ADDWrr renamable $w0, killed renamable $w19
$lr, $fp, $x19, $x20 = frame-destroy HOM_Epilog
B %bb.1
bb.1:
liveins: $w0, $x16
TCRETURNri killed renamable $x16, 0, csr_aarch64_aapcs, implicit $sp, implicit $w0
# CHECK: _OUTLINED_FUNCTION_PROLOG_FRAME16_x30x29x19x20:
# CHECK-NOT: _OUTLINED_FUNCTION_EPILOG_x30x29x19x20:
|
