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