test/CodeGen/Thumb/ldm-stm-base-materialization-thumb2.ll

; RUN: llc -mattr=-neon < %s -verify-machineinstrs -o - | FileCheck %s

target triple = "thumbv7a-none--eabi"

@a = external global ptr
@b = external global ptr

; Function Attrs: nounwind
define void @foo24() #0 {
entry:
; CHECK-LABEL: foo24:
; We use 'ptr' to allow 'r0'..'r12', 'lr'
; CHECK: movt [[LB:[rl0-9]+]], :upper16:b
; CHECK: movt [[SB:[rl0-9]+]], :upper16:a
; CHECK: add{{s?}}{{(\.w)?}} [[NLB:[rl0-9]+]], [[LB]], #4
; CHECK: adds [[SB]], #4
; CHECK-NEXT: ldm{{(\.w)?}} [[NLB]], {[[R1:[rl0-9]+]], [[R2:[rl0-9]+]], [[R3:[rl0-9]+]], [[R4:[rl0-9]+]], [[R5:[rl0-9]+]], [[R6:[rl0-9]+]]}
; CHECK-NEXT: stm{{(\.w)?}} [[SB]], {[[R1]], [[R2]], [[R3]], [[R4]], [[R5]], [[R6]]}
  %0 = load ptr, ptr @a, align 4
  %arrayidx = getelementptr inbounds i32, ptr %0, i32 1
  %1 = load ptr, ptr @b, align 4
  %arrayidx1 = getelementptr inbounds i32, ptr %1, i32 1
  tail call void @llvm.memcpy.p0.p0.i32(ptr align 4 %arrayidx, ptr align 4 %arrayidx1, i32 24, i1 false)
  ret void
}

define void @foo28() #0 {
entry:
; CHECK-LABEL: foo28:
; CHECK: movt [[LB:[rl0-9]+]], :upper16:b
; CHECK: movt [[SB:[rl0-9]+]], :upper16:a
; CHECK: add{{(\.w)?}} [[NLB:[rl0-9]+]], [[LB]], #4
; CHECK: adds [[SB]], #4
; CHECK-NEXT: ldm{{(\.w)?}} [[NLB]]!, {[[R1:[rl0-9]+]], [[R2:[rl0-9]+]], [[R3:[rl0-9]+]]}
; CHECK-NEXT: stm{{(\.w)?}} [[SB]]!, {[[R1]], [[R2]], [[R3]]}
; CHECK-NEXT: ldm{{(\.w)?}} [[NLB]], {[[R1:[rl0-9]+]], [[R2:[rl0-9]+]], [[R3:[rl0-9]+]], [[R4:[rl0-9]+]]}
; CHECK-NEXT: stm{{(\.w)?}} [[SB]], {[[R1]], [[R2]], [[R3]], [[R4]]}
  %0 = load ptr, ptr @a, align 4
  %arrayidx = getelementptr inbounds i32, ptr %0, i32 1
  %1 = load ptr, ptr @b, align 4
  %arrayidx1 = getelementptr inbounds i32, ptr %1, i32 1
  tail call void @llvm.memcpy.p0.p0.i32(ptr align 4 %arrayidx, ptr align 4 %arrayidx1, i32 28, i1 false)
  ret void
}

define void @foo32() #0 {
entry:
; CHECK-LABEL: foo32:
; CHECK: movt [[LB:[rl0-9]+]], :upper16:b
; CHECK: movt [[SB:[rl0-9]+]], :upper16:a
; CHECK: add{{(\.w)?}} [[NLB:[rl0-9]+]], [[LB]], #4
; CHECK: adds [[SB]], #4
; CHECK-NEXT: ldm{{(\.w)?}} [[NLB]]!, {[[R1:[rl0-9]+]], [[R2:[rl0-9]+]], [[R3:[rl0-9]+]], [[R4:[rl0-9]+]]}
; CHECK-NEXT: stm{{(\.w)?}} [[SB]]!, {[[R1]], [[R2]], [[R3]], [[R4]]}
; CHECK-NEXT: ldm{{(\.w)?}} [[NLB]], {[[R1:[rl0-9]+]], [[R2:[rl0-9]+]], [[R3:[rl0-9]+]], [[R4:[rl0-9]+]]}
; CHECK-NEXT: stm{{(\.w)?}} [[SB]], {[[R1]], [[R2]], [[R3]], [[R4]]}
  %0 = load ptr, ptr @a, align 4
  %arrayidx = getelementptr inbounds i32, ptr %0, i32 1
  %1 = load ptr, ptr @b, align 4
  %arrayidx1 = getelementptr inbounds i32, ptr %1, i32 1
  tail call void @llvm.memcpy.p0.p0.i32(ptr align 4 %arrayidx, ptr align 4 %arrayidx1, i32 32, i1 false)
  ret void
}

define void @foo36() #0 {
entry:
; CHECK-LABEL: foo36:
; CHECK: movt [[LB:[rl0-9]+]], :upper16:b
; CHECK: movt [[SB:[rl0-9]+]], :upper16:a
; CHECK: add{{(\.w)?}} [[NLB:[rl0-9]+]], [[LB]], #4
; CHECK: adds [[SB]], #4
; CHECK-NEXT: ldm{{(\.w)?}} [[NLB]]!, {[[R1:[rl0-9]+]], [[R2:[rl0-9]+]], [[R3:[rl0-9]+]], [[R4:[rl0-9]+]]}
; CHECK-NEXT: stm{{(\.w)?}} [[SB]]!, {[[R1]], [[R2]], [[R3]], [[R4]]}
; CHECK-NEXT: ldm{{(\.w)?}} [[NLB]], {[[R1:[rl0-9]+]], [[R2:[rl0-9]+]], [[R3:[rl0-9]+]], [[R4:[rl0-9]+]], [[R5:[rl0-9]+]]}
; CHECK-NEXT: stm{{(\.w)?}} [[SB]], {[[R1]], [[R2]], [[R3]], [[R4]], [[R5]]}
  %0 = load ptr, ptr @a, align 4
  %arrayidx = getelementptr inbounds i32, ptr %0, i32 1
  %1 = load ptr, ptr @b, align 4
  %arrayidx1 = getelementptr inbounds i32, ptr %1, i32 1
  tail call void @llvm.memcpy.p0.p0.i32(ptr align 4 %arrayidx, ptr align 4 %arrayidx1, i32 36, i1 false)
  ret void
}

; Function Attrs: nounwind
declare void @llvm.memcpy.p0.p0.i32(ptr nocapture, ptr nocapture readonly, i32, i1) #1