forked from OSchip/llvm-project
21 lines
709 B
LLVM
21 lines
709 B
LLVM
; 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: pextrw $1, %xmm0, %eax
|
|
; CHECK-NEXT: andb $95, %al
|
|
; 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
|
|
}
|
|
|