llvm/test/Transforms/LoadStoreVectorizer/external-state-pointer.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -passes=load-store-vectorizer -S < %s | FileCheck %s

target datalayout = "e-pe2:32:32:32:32"

; A pointer with external state must remain a pointer-typed memory access.
; Replacing it with an integer vector load would not transfer its out-of-band
; state.
define { ptr addrspace(2), i32 } @load_external_state_pointer(ptr align 8 %base) {
; CHECK-LABEL: define { ptr addrspace(2), i32 } @load_external_state_pointer(
; CHECK-SAME: ptr align 8 [[BASE:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    [[NEXT:%.*]] = getelementptr i8, ptr [[BASE]], i64 4
; CHECK-NEXT:    [[TMP1:%.*]] = load ptr addrspace(2), ptr [[BASE]], align 8
; CHECK-NEXT:    [[I2:%.*]] = load i32, ptr [[NEXT]], align 4
; CHECK-NEXT:    [[R0:%.*]] = insertvalue { ptr addrspace(2), i32 } poison, ptr addrspace(2) [[TMP1]], 0
; CHECK-NEXT:    [[R1:%.*]] = insertvalue { ptr addrspace(2), i32 } [[R0]], i32 [[I2]], 1
; CHECK-NEXT:    ret { ptr addrspace(2), i32 } [[R1]]
;
entry:
  %next = getelementptr i8, ptr %base, i64 4
  %p = load ptr addrspace(2), ptr %base, align 8
  %i = load i32, ptr %next, align 4
  %r0 = insertvalue { ptr addrspace(2), i32 } poison,
  ptr addrspace(2) %p, 0
  %r1 = insertvalue { ptr addrspace(2), i32 } %r0, i32 %i, 1
  ret { ptr addrspace(2), i32 } %r1
}

; A pointer with external state must remain a pointer-typed memory access.
; Replacing it with an integer vector store would not transfer its out-of-band
; state.
define void @store_external_state_pointer(
; CHECK-LABEL: define void @store_external_state_pointer(
; CHECK-SAME: ptr align 8 [[BASE:%.*]], ptr addrspace(2) [[P:%.*]], i32 [[I:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    [[NEXT:%.*]] = getelementptr i8, ptr [[BASE]], i64 4
; CHECK-NEXT:    store ptr addrspace(2) [[P]], ptr [[BASE]], align 8
; CHECK-NEXT:    store i32 [[I]], ptr [[NEXT]], align 4
; CHECK-NEXT:    ret void
;
  ptr align 8 %base, ptr addrspace(2) %p, i32 %i) {
entry:
  %next = getelementptr i8, ptr %base, i64 4
  store ptr addrspace(2) %p, ptr %base, align 8
  store i32 %i, ptr %next, align 4
  ret void
}