and-load-fold.ll
588 Bytes
; 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: movb 2(%rdi), %al
; CHECK-NEXT: andb $95, %al
; 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
}