1 # RUN: llc -mtriple=arm-linux-unknown-gnueabi -run-pass none -o - %s | FileCheck %s 2 3 --- | 4 declare void @dummy_use(i32*, i32) 5 6 define void @test_basic() #0 { 7 entry: 8 %mem = alloca i32, i32 10 9 call void @dummy_use(i32* %mem, i32 10) 10 ret void 11 } 12 13 attributes #0 = { "split-stack" } 14 ... 15 --- 16 name: test_basic 17 tracksRegLiveness: true 18 frameInfo: 19 stackSize: 48 20 maxAlignment: 4 21 adjustsStack: true 22 hasCalls: true 23 stack: 24 - { id: 0, name: mem, offset: -48, size: 40, alignment: 4 } 25 - { id: 1, type: spill-slot, offset: -4, size: 4, alignment: 4, 26 callee-saved-register: '$lr' } 27 - { id: 2, type: spill-slot, offset: -8, size: 4, alignment: 4, 28 callee-saved-register: '$r11' } 29 body: | 30 bb.0: 31 successors: %bb.2, %bb.1 32 liveins: $r11, $lr 33 34 $sp = STMDB_UPD $sp, 14, _, $r4, $r5 35 CFI_INSTRUCTION def_cfa_offset 8 36 CFI_INSTRUCTION offset $r5, -4 37 CFI_INSTRUCTION offset $r4, -8 38 $r5 = MOVr $sp, 14, _, _ 39 $r4 = MRC 15, 0, 13, 0, 3, 14, _ 40 $r4 = LDRi12 $r4, 4, 14, _ 41 CMPrr $r4, $r5, 14, _, implicit-def $cpsr 42 Bcc %bb.2, 3, $cpsr 43 44 bb.1: 45 successors: %bb.2 46 liveins: $r11, $lr 47 48 $r4 = MOVi 48, 14, _, _ 49 $r5 = MOVi 0, 14, _, _ 50 $sp = STMDB_UPD $sp, 14, _, $lr 51 CFI_INSTRUCTION def_cfa_offset 12 52 CFI_INSTRUCTION offset $lr, -12 53 BL &__morestack, implicit-def $lr, implicit $sp 54 $sp = LDMIA_UPD $sp, 14, _, $lr 55 $sp = LDMIA_UPD $sp, 14, _, $r4, $r5 56 CFI_INSTRUCTION def_cfa_offset 0 57 BX_RET 14, _ 58 59 bb.2: 60 liveins: $r11, $lr 61 62 $sp = LDMIA_UPD $sp, 14, _, $r4, $r5 63 CFI_INSTRUCTION def_cfa_offset 0 64 ; CHECK: CFI_INSTRUCTION same_value $r4 65 ; CHECK-NEXT: CFI_INSTRUCTION same_value $r5 66 CFI_INSTRUCTION same_value $r4 67 CFI_INSTRUCTION same_value $r5 68 $sp = frame-setup STMDB_UPD $sp, 14, _, killed $r11, killed $lr 69 frame-setup CFI_INSTRUCTION def_cfa_offset 8 70 frame-setup CFI_INSTRUCTION offset $lr, -4 71 frame-setup CFI_INSTRUCTION offset $r11, -8 72 $sp = frame-setup SUBri killed $sp, 40, 14, _, _ 73 frame-setup CFI_INSTRUCTION def_cfa_offset 48 74 $r0 = MOVr $sp, 14, _, _ 75 $r1 = MOVi 10, 14, _, _ 76 BL @dummy_use, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit killed $r1, implicit-def $sp 77 $sp = ADDri killed $sp, 40, 14, _, _ 78 $sp = LDMIA_UPD $sp, 14, _, $r4, $r5 79 MOVPCLR 14, _ 80 ... 81
