test/CodeGen/ARM/splitkit-remat-regclass-constraint-regression.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -verify-machineinstrs -stress-regalloc=2 -o - %s | FileCheck %s

; Check that no register class constraint error is produced during
; rematerialization

target triple = "thumbv7-apple-ios"

declare ptr @_Znwm()

define void @func() {
; CHECK-LABEL: func:
; CHECK:       @ %bb.0: @ %bb14
; CHECK-NEXT:    str lr, [sp, #-4]!
; CHECK-NEXT:    movs r0, #0
; CHECK-NEXT:    movs r1, #4
; CHECK-NEXT:    str r0, [r1]
; CHECK-NEXT:    movs r1, #8
; CHECK-NEXT:    str r0, [r1]
; CHECK-NEXT:    str r0, [r0]
; CHECK-NEXT:    bl __Znwm
; CHECK-NEXT:    movs r1, #0
; CHECK-NEXT:    movs r0, #4
; CHECK-NEXT:    str r1, [r0]
; CHECK-NEXT:    movs r0, #8
; CHECK-NEXT:    str r1, [r0]
; CHECK-NEXT:    str r1, [r1]
; CHECK-NEXT:    ldr lr, [sp], #4
; CHECK-NEXT:    bx lr
bb14:
  call void @llvm.memset.p0.i32(ptr null, i8 0, i32 12, i1 false)
  %tmp34 = call ptr @_Znwm()
  call void @llvm.memset.p0.i32(ptr null, i8 0, i32 12, i1 false)
  ret void
}

declare void @llvm.memset.p0.i32(ptr writeonly captures(none), i8, i32, i1 immarg) #0

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: write) }