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# RUN: llc -mtriple=arm-linux-unknown-gnueabi -run-pass none -o - %s | FileCheck %s
--- |
declare void @dummy_use(i32*, i32)
define void @test_basic() #0 {
entry:
%mem = alloca i32, i32 10
call void @dummy_use(i32* %mem, i32 10)
ret void
}
attributes #0 = { "split-stack" }
...
---
name: test_basic
tracksRegLiveness: true
frameInfo:
stackSize: 48
maxAlignment: 4
adjustsStack: true
hasCalls: true
stack:
- { id: 0, name: mem, offset: -48, size: 40, alignment: 4 }
- { id: 1, type: spill-slot, offset: -4, size: 4, alignment: 4,
callee-saved-register: '%lr' }
- { id: 2, type: spill-slot, offset: -8, size: 4, alignment: 4,
callee-saved-register: '%r11' }
body: |
bb.0:
successors: %bb.2, %bb.1
liveins: %r11, %lr
%sp = STMDB_UPD %sp, 14, _, %r4, %r5
CFI_INSTRUCTION def_cfa_offset 8
CFI_INSTRUCTION offset %r5, -4
CFI_INSTRUCTION offset %r4, -8
%r5 = MOVr %sp, 14, _, _
%r4 = MRC 15, 0, 13, 0, 3, 14, _
%r4 = LDRi12 %r4, 4, 14, _
CMPrr %r4, %r5, 14, _, implicit-def %cpsr
Bcc %bb.2, 3, %cpsr
bb.1:
successors: %bb.2
liveins: %r11, %lr
%r4 = MOVi 48, 14, _, _
%r5 = MOVi 0, 14, _, _
%sp = STMDB_UPD %sp, 14, _, %lr
CFI_INSTRUCTION def_cfa_offset 12
CFI_INSTRUCTION offset %lr, -12
BL $__morestack, implicit-def %lr, implicit %sp
%sp = LDMIA_UPD %sp, 14, _, %lr
%sp = LDMIA_UPD %sp, 14, _, %r4, %r5
CFI_INSTRUCTION def_cfa_offset 0
BX_RET 14, _
bb.2:
liveins: %r11, %lr
%sp = LDMIA_UPD %sp, 14, _, %r4, %r5
CFI_INSTRUCTION def_cfa_offset 0
; CHECK: CFI_INSTRUCTION same_value %r4
; CHECK-NEXT: CFI_INSTRUCTION same_value %r5
CFI_INSTRUCTION same_value %r4
CFI_INSTRUCTION same_value %r5
%sp = frame-setup STMDB_UPD %sp, 14, _, killed %r11, killed %lr
frame-setup CFI_INSTRUCTION def_cfa_offset 8
frame-setup CFI_INSTRUCTION offset %lr, -4
frame-setup CFI_INSTRUCTION offset %r11, -8
%sp = frame-setup SUBri killed %sp, 40, 14, _, _
frame-setup CFI_INSTRUCTION def_cfa_offset 48
%r0 = MOVr %sp, 14, _, _
%r1 = MOVi 10, 14, _, _
BL @dummy_use, csr_aapcs, implicit-def dead %lr, implicit %sp, implicit %r0, implicit killed %r1, implicit-def %sp
%sp = ADDri killed %sp, 40, 14, _, _
%sp = LDMIA_UPD %sp, 14, _, %r4, %r5
MOVPCLR 14, _
...
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