| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=core2 | FileCheck %s |
| |
| declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind |
| declare void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind |
| |
| define void @test1(i8* %a, i8* %b) nounwind { |
| ; CHECK-LABEL: test1: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: movq (%rsi), %rax |
| ; CHECK-NEXT: movq %rax, (%rdi) |
| ; CHECK-NEXT: retq |
| tail call void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* %a, i8* %b, i64 8, i1 0 ) |
| ret void |
| } |
| |
| define void @regular_memcpy_calls_external_function(i8* %a, i8* %b) nounwind { |
| ; CHECK-LABEL: regular_memcpy_calls_external_function: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: movl $128, %edx |
| ; CHECK-NEXT: jmp memcpy@PLT # TAILCALL |
| tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 128, i1 0 ) |
| ret void |
| } |
| |
| define void @inlined_copy_doesnt_call_external_function(i8* %a, i8* %b) nounwind { |
| ; CHECK-LABEL: inlined_copy_doesnt_call_external_function: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: movl $128, %ecx |
| ; CHECK-NEXT: rep;movsb (%rsi), %es:(%rdi) |
| ; CHECK-NEXT: retq |
| tail call void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* %a, i8* %b, i64 128, i1 0 ) |
| ret void |
| } |