1 ; RUN: llc -mcpu=cyclone < %s | FileCheck %s 2 3 ; r208640 broke ppc64/Linux self-hosting; xfailing while this is worked on. 4 ; XFAIL: * 5 6 target datalayout = "e-i64:64-n32:64-S128" 7 target triple = "arm64-apple-ios" 8 9 %"struct.SU" = type { i32, %"struct.SU"*, i32*, i32, i32, %"struct.BO", i32, [5 x i8] } 10 %"struct.BO" = type { %"struct.RE" } 11 12 %"struct.RE" = type { i32, i32, i32, i32 } 13 14 ; This is a read-modify-write of some bifields combined into an i48. It gets 15 ; legalized into i32 and i16 accesses. Only a single store of zero to the low 16 ; i32 part should be live. 17 18 ; CHECK-LABEL: test: 19 ; CHECK-NOT: ldr 20 ; CHECK: str wzr 21 ; CHECK-NOT: str 22 define void @test(%"struct.SU"* nocapture %su) { 23 entry: 24 %r1 = getelementptr inbounds %"struct.SU"* %su, i64 1, i32 5 25 %r2 = bitcast %"struct.BO"* %r1 to i48* 26 %r3 = load i48* %r2, align 8 27 %r4 = and i48 %r3, -4294967296 28 %r5 = or i48 0, %r4 29 store i48 %r5, i48* %r2, align 8 30 31 ret void 32 } 33
