1 ; RUN: llc -mcpu=cyclone < %s | FileCheck %s
3 target datalayout = "e-i64:64-n32:64-S128"
4 target triple = "arm64-apple-ios"
6 %"struct.SU" = type { i32, %"struct.SU"*, i32*, i32, i32, %"struct.BO", i32, [5 x i8] }
7 %"struct.BO" = type { %"struct.RE" }
9 %"struct.RE" = type { i32, i32, i32, i32 }
11 ; This is a read-modify-write of some bifields combined into an i48. It gets
12 ; legalized into i32 and i16 accesses. Only a single store of zero to the low
13 ; i32 part should be live.
19 define void @test(%"struct.SU"* nocapture %su) {
21 %r1 = getelementptr inbounds %"struct.SU"* %su, i64 1, i32 5
22 %r2 = bitcast %"struct.BO"* %r1 to i48*
23 %r3 = load i48* %r2, align 8
24 %r4 = and i48 %r3, -4294967296
26 store i48 %r5, i48* %r2, align 8