llvm/test/Transforms/LoadStoreVectorizer/AMDGPU/missing-alignment.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -mtriple=amdgpu8.02-- -passes=load-store-vectorizer -S -o - %s | FileCheck %s

@lds = internal addrspace(3) global [512 x float] undef, align 4

; The original load has an implicit alignment of 4, and should not
; increase to an align 8 load.

define amdgpu_kernel void @load_keep_base_alignment_missing_align(ptr addrspace(1) %out) {
; CHECK-LABEL: @load_keep_base_alignment_missing_align(
; CHECK-NEXT:    [[PTR0:%.*]] = getelementptr inbounds [512 x float], ptr addrspace(3) @lds, i32 0, i32 11
; CHECK-NEXT:    [[TMP2:%.*]] = load <2 x float>, ptr addrspace(3) [[PTR0]], align 4
; CHECK-NEXT:    [[VAL01:%.*]] = extractelement <2 x float> [[TMP2]], i64 0
; CHECK-NEXT:    [[VAL12:%.*]] = extractelement <2 x float> [[TMP2]], i64 1
; CHECK-NEXT:    [[ADD:%.*]] = fadd float [[VAL01]], [[VAL12]]
; CHECK-NEXT:    store float [[ADD]], ptr addrspace(1) [[OUT:%.*]], align 4
; CHECK-NEXT:    ret void
;
  %ptr0 = getelementptr inbounds [512 x float], ptr addrspace(3) @lds, i32 0, i32 11
  %val0 = load float, ptr addrspace(3) %ptr0

  %ptr1 = getelementptr inbounds [512 x float], ptr addrspace(3) @lds, i32 0, i32 12
  %val1 = load float, ptr addrspace(3) %ptr1
  %add = fadd float %val0, %val1
  store float %add, ptr addrspace(1) %out
  ret void
}

define amdgpu_kernel void @store_keep_base_alignment_missing_align() {
; CHECK-LABEL: @store_keep_base_alignment_missing_align(
; CHECK-NEXT:    [[ARRAYIDX0:%.*]] = getelementptr inbounds [512 x float], ptr addrspace(3) @lds, i32 0, i32 1
; CHECK-NEXT:    store <2 x float> zeroinitializer, ptr addrspace(3) [[ARRAYIDX0]], align 4
; CHECK-NEXT:    ret void
;
  %arrayidx0 = getelementptr inbounds [512 x float], ptr addrspace(3) @lds, i32 0, i32 1
  %arrayidx1 = getelementptr inbounds [512 x float], ptr addrspace(3) @lds, i32 0, i32 2
  store float 0.0, ptr addrspace(3) %arrayidx0
  store float 0.0, ptr addrspace(3) %arrayidx1
  ret void
}