1# RUN: llc -mtriple=arm64-applie-ios7.0 -start-before=aarch64-lower-homogeneous-prolog-epilog -homogeneous-prolog-epilog %s -o - | FileCheck %s 2# 3# This test ensure no outlined epilog is formed when X16 is live across the helper. 4--- | 5 @FuncPtr = local_unnamed_addr global ptr null, align 8 6 7 define i32 @_Z3fooi(i32) minsize "frame-pointer"="all" { 8 ret i32 0 9 } 10 11 declare i32 @_Z3gooii(i32, i32) 12... 13--- 14name: _Z3fooi 15tracksRegLiveness: true 16body: | 17 bb.0: 18 liveins: $w0, $lr, $x19, $x20 19 successors: %bb.1 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 34 B %bb.1 35 36 bb.1: 37 liveins: $w0, $x16 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: 41