1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=core2 | FileCheck %s 3 4declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind 5declare void @llvm.memcpy.inline.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind 6 7define void @test1(ptr %a, ptr %b) nounwind { 8; CHECK-LABEL: test1: 9; CHECK: # %bb.0: 10; CHECK-NEXT: movq (%rsi), %rax 11; CHECK-NEXT: movq %rax, (%rdi) 12; CHECK-NEXT: retq 13 tail call void @llvm.memcpy.inline.p0.p0.i64(ptr %a, ptr %b, i64 8, i1 0 ) 14 ret void 15} 16 17define void @regular_memcpy_calls_external_function(ptr %a, ptr %b) nounwind { 18; CHECK-LABEL: regular_memcpy_calls_external_function: 19; CHECK: # %bb.0: 20; CHECK-NEXT: movl $128, %edx 21; CHECK-NEXT: jmp memcpy@PLT # TAILCALL 22 tail call void @llvm.memcpy.p0.p0.i64(ptr %a, ptr %b, i64 128, i1 0 ) 23 ret void 24} 25 26define void @inlined_copy_doesnt_call_external_function(ptr %a, ptr %b) nounwind { 27; CHECK-LABEL: inlined_copy_doesnt_call_external_function: 28; CHECK: # %bb.0: 29; CHECK-NEXT: movl $128, %ecx 30; CHECK-NEXT: rep;movsb (%rsi), %es:(%rdi) 31; CHECK-NEXT: retq 32 tail call void @llvm.memcpy.inline.p0.p0.i64(ptr %a, ptr %b, i64 128, i1 0 ) 33 ret void 34} 35