1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s | FileCheck %s
4 target triple = "aarch64-unknown-linux-gnu"
6 ; Ensure that a no-op 'and' after an extending load gets removed when the and is
7 ; constructed via a splat_vector node.
8 define <vscale x 2 x i64> @fold_loadext_and(ptr %ptr, i32 %needle, <vscale x 2 x i64> %b) #0 {
9 ; CHECK-LABEL: fold_loadext_and:
11 ; CHECK-NEXT: ptrue p0.d
12 ; CHECK-NEXT: ld1w { z0.d }, p0/z, [x0]
14 %load = load <vscale x 2 x i32>, ptr %ptr, align 4
15 %ext = zext <vscale x 2 x i32> %load to <vscale x 2 x i64>
16 %splatinsert = insertelement <vscale x 2 x i64> poison, i64 4294967295, i64 0
17 %splat = shufflevector <vscale x 2 x i64> %splatinsert, <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
18 %and = and <vscale x 2 x i64> %ext, %splat
19 ret <vscale x 2 x i64> %and
22 ; Same as above but testing the case we care about. Here the vscale x 2 x i32
23 ; types get legalized into vscale x 2 x i64 types which introduces the extending
24 ; load and 'and' nodes similar to the above case.
25 define <vscale x 2 x i1> @fold_loadext_and_legalize(ptr %ptr, <vscale x 2 x i32> %a) #0 {
26 ; CHECK-LABEL: fold_loadext_and_legalize:
28 ; CHECK-NEXT: ptrue p0.d
29 ; CHECK-NEXT: and z0.d, z0.d, #0xffffffff
30 ; CHECK-NEXT: ld1w { z1.d }, p0/z, [x0]
31 ; CHECK-NEXT: cmpeq p0.d, p0/z, z1.d, z0.d
33 %load = load <vscale x 2 x i32>, ptr %ptr
34 %cmp = icmp eq <vscale x 2 x i32> %load, %a
35 ret <vscale x 2 x i1> %cmp
38 attributes #0 = { "target-features"="+sve" }