1; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=core2 | FileCheck %s 2; rdar://7842028 3 4; Do not delete partially dead copy instructions. 5; dead %rdi = MOV64rr killed %rax, implicit-def %edi 6; REP_MOVSD implicit dead %ecx, implicit dead %edi, implicit dead %esi, implicit killed %ecx, implicit killed %edi, implicit killed %esi 7 8 9%struct.F = type { ptr, i32, i32, i8, i32, i32, i32 } 10%struct.FC = type { [10 x i8], [32 x i32], ptr, i32 } 11 12define void @t(ptr %this) nounwind { 13entry: 14; CHECK-LABEL: t: 15; CHECK: addq $12, %rsi 16 %BitValueArray = alloca [32 x i32], align 4 17 %tmp3 = load ptr, ptr %this, align 8 18 %tmp4 = getelementptr inbounds %struct.FC, ptr %tmp3, i64 0, i32 1, i64 0 19 call void @llvm.memcpy.p0.p0.i64(ptr align 4 %BitValueArray, ptr align 4 %tmp4, i64 128, i1 false) 20 unreachable 21} 22 23declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind 24