; 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.memset.p0.i64(ptr nocapture, i8, i64, i1) nounwind declare void @llvm.memset.inline.p0.i64(ptr nocapture, i8, i64, i1) nounwind define void @test1(ptr %a, i8 %value) nounwind { ; CHECK-LABEL: test1: ; CHECK: # %bb.0: ; CHECK-NEXT: # kill: def $esi killed $esi def $rsi ; CHECK-NEXT: movzbl %sil, %eax ; CHECK-NEXT: movabsq $72340172838076673, %rcx # imm = 0x101010101010101 ; CHECK-NEXT: imulq %rax, %rcx ; CHECK-NEXT: movq %rcx, (%rdi) ; CHECK-NEXT: retq tail call void @llvm.memset.inline.p0.i64(ptr %a, i8 %value, i64 8, i1 0) ret void } define void @regular_memset_calls_external_function(ptr %a, i8 %value) nounwind { ; CHECK-LABEL: regular_memset_calls_external_function: ; CHECK: # %bb.0: ; CHECK-NEXT: movl $1024, %edx # imm = 0x400 ; CHECK-NEXT: jmp memset@PLT # TAILCALL tail call void @llvm.memset.p0.i64(ptr %a, i8 %value, i64 1024, i1 0) ret void } define void @inlined_set_doesnt_call_external_function(ptr %a, i8 %value) nounwind { ; CHECK-LABEL: inlined_set_doesnt_call_external_function: ; CHECK: # %bb.0: ; CHECK-NEXT: # kill: def $esi killed $esi def $rsi ; CHECK-NEXT: movzbl %sil, %ecx ; CHECK-NEXT: movabsq $72340172838076673, %rax # imm = 0x101010101010101 ; CHECK-NEXT: imulq %rcx, %rax ; CHECK-NEXT: movq %rax, 1016(%rdi) ; CHECK-NEXT: movq %rax, 1008(%rdi) tail call void @llvm.memset.inline.p0.i64(ptr %a, i8 %value, i64 1024, i1 0) ret void }