1 ; RUN: llc -O3 -ppc-late-peephole=false -o - %s | FileCheck %s
2 target datalayout = "e-m:e-i64:64-n32:64"
3 target triple = "powerpc64le-unknown-linux-gnu"
5 %class1 = type { %union1 }
6 %union1 = type { i64, [24 x i8] }
7 %class2 = type { %class3 }
8 %class3 = type { %class4 }
9 %class4 = type { %class5, i64, %union.anon }
10 %class5 = type { i8* }
11 %union.anon = type { i64, [8 x i8] }
13 @ext = external global %"class1", align 8
15 ; We can't select lxv for this because even though we're accessing an offset of
16 ; 16 from the stack slot, the stack slot is only guaranteed to be 8-byte
17 ; aligned. When the frame is finalized it is converted to lxv (frame-reg) +
18 ; (offset + 16). Because offset isn't guaranteed to be 16-byte aligned, we may
19 ; end up needing to translate the lxv instruction to lxvx
20 ; CHECK-LABEL: unaligned_slot:
21 ; CHECK-NOT: lxv {{[0-9]+}}, {{[-0-9]+}}({{[0-9]+}})
23 define void @unaligned_slot() #0 {
24 %1 = alloca %class2, align 8
25 %2 = getelementptr inbounds %class2, %class2* %1, i64 0, i32 0, i32 0, i32 2
26 %3 = bitcast %union.anon* %2 to i8*
27 call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 nonnull getelementptr inbounds (%class1, %class1* @ext, i64 0, i32 0, i32 1, i64 8), i8* align 8 nonnull %3, i64 16, i1 false) #2
30 ; CHECK-LABEL: aligned_slot:
31 ; CHECK: lxv {{[0-9]+}}, {{[-0-9]+}}({{[0-9]+}})
33 define void @aligned_slot() #0 {
34 %1 = alloca %class2, align 16
35 %2 = getelementptr inbounds %class2, %class2* %1, i64 0, i32 0, i32 0, i32 2
36 %3 = bitcast %union.anon* %2 to i8*
37 call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 nonnull getelementptr inbounds (%class1, %class1* @ext, i64 0, i32 0, i32 1, i64 8), i8* align 8 nonnull %3, i64 16, i1 false) #2
41 ; Function Attrs: argmemonly nounwind
42 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i1) #1
44 attributes #0 = { nounwind "target-cpu"="pwr9" "target-features"="+altivec,+bpermd,+crypto,+direct-move,+extdiv,+htm,+power8-vector,+power9-vector,+vsx,-qpx" "unsafe-fp-math"="false" "use-soft-float"="false" }
45 attributes #1 = { argmemonly nounwind }
46 attributes #2 = { nounwind }