1 # RUN: llc -mtriple=arm64-applie-ios7.0 -start-before=aarch64-lower-homogeneous-prolog-epilog -homogeneous-prolog-epilog %s -o - | FileCheck %s
3 # This test ensure no outlined epilog is formed when X16 is live across the helper.
5 @FuncPtr = local_unnamed_addr global i32 (i32)* null, align 8
7 define i32 @_Z3fooi(i32) minsize "frame-pointer"="all" {
11 declare i32 @_Z3gooii(i32, i32)
15 tracksRegLiveness: true
18 liveins: $w0, $lr, $x19, $x20
20 frame-setup HOM_Prolog $lr, $fp, $x19, $x20, 16
21 frame-setup CFI_INSTRUCTION def_cfa $w29, 16
22 frame-setup CFI_INSTRUCTION offset $w30, -8
23 frame-setup CFI_INSTRUCTION offset $w29, -16
24 frame-setup CFI_INSTRUCTION offset $w19, -24
25 frame-setup CFI_INSTRUCTION offset $w20, -32
26 $w19 = nsw ADDWri $w0, 1, 0
27 $w1 = ORRWrr $wzr, $w0
28 $w0 = ORRWrr $wzr, $w19
29 BL @_Z3gooii, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $w0, implicit $w1, implicit-def $sp, implicit-def $w0
30 $x8 = ADRP target-flags(aarch64-page) @FuncPtr
31 $x16 = LDRXui killed renamable $x8, target-flags(aarch64-pageoff, aarch64-nc) @FuncPtr
32 $w0 = nsw ADDWrr renamable $w0, killed renamable $w19
33 $lr, $fp, $x19, $x20 = frame-destroy HOM_Epilog
38 TCRETURNri killed renamable $x16, 0, csr_aarch64_aapcs, implicit $sp, implicit $w0
39 # CHECK: _OUTLINED_FUNCTION_PROLOG_FRAME16_x30x29x19x20:
40 # CHECK-NOT: _OUTLINED_FUNCTION_EPILOG_x30x29x19x20: