llvm/test/CodeGen/AMDGPU/promote-alloca-non-constant-index.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -passes=amdgpu-promote-alloca < %s | FileCheck %s

; Check that promoting an alloca to a vector form works correctly when a variable
; vector index is used.

define amdgpu_kernel void @non_constant_index(i32 %arg) {
; CHECK-LABEL: define amdgpu_kernel void @non_constant_index(
; CHECK-SAME: i32 [[ARG:%.*]]) {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[I:%.*]] = freeze <2 x float> poison
; CHECK-NEXT:    br label [[BB1:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    br label [[BB1]]
; CHECK:       bb2:
; CHECK-NEXT:    br label [[BB3:%.*]]
; CHECK:       bb3:
; CHECK-NEXT:    [[PROMOTEALLOCA:%.*]] = phi <2 x float> [ [[TMP2:%.*]], [[BB3]] ], [ poison, [[BB2:%.*]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = insertelement <2 x float> [[PROMOTEALLOCA]], float 0.000000e+00, i32 [[ARG]]
; CHECK-NEXT:    [[TMP1:%.*]] = add i32 [[ARG]], 1
; CHECK-NEXT:    [[TMP2]] = insertelement <2 x float> [[TMP0]], float 0.000000e+00, i32 [[TMP1]]
; CHECK-NEXT:    br label [[BB3]]
;
bb:
  %i = alloca [2 x float], align 4, addrspace(5)
  br label %bb1

bb1:
  br label %bb1

bb2:
  br label %bb3

bb3:
  %i4 = getelementptr float, ptr addrspace(5) %i, i32 %arg
  store <2 x float> zeroinitializer, ptr addrspace(5) %i4, align 8
  br label %bb3
}