llvm/test/CodeGen/X86/and-load-fold.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-- -mcpu=generic < %s | FileCheck %s

; Verify that the DAGCombiner doesn't wrongly remove the 'and' from the dag.

define i8 @foo(<4 x i8>* %V) {
; CHECK-LABEL: foo:
; CHECK:       # %bb.0:
; CHECK-NEXT:    movd {{.*#+}} xmm0 = mem[0],zero,zero,zero
; CHECK-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
; CHECK-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3]
; CHECK-NEXT:    pand {{.*}}(%rip), %xmm0
; CHECK-NEXT:    pextrw $4, %xmm0, %eax
; CHECK-NEXT:    # kill: def $al killed $al killed $eax
; CHECK-NEXT:    retq
  %Vp = bitcast <4 x i8>* %V to <3 x i8>*
  %V3i8 = load <3 x i8>, <3 x i8>* %Vp, align 4
  %t0 = and <3 x i8> %V3i8, <i8 undef, i8 undef, i8 95>
  %t1 = extractelement <3 x i8> %t0, i64 2
  ret i8 %t1
}