1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
2 ; 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, ptr, ptr, 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.
14 define void @test(ptr nocapture %su) {
16 ; CHECK: ; %bb.0: ; %entry
17 ; CHECK-NEXT: str wzr, [x0, #96]
20 %r1 = getelementptr inbounds %"struct.SU", ptr %su, i64 1, i32 5
21 %r3 = load i48, ptr %r1, align 8
22 %r4 = and i48 %r3, -4294967296
24 store i48 %r5, ptr %r1, align 8