; RUN: llc < %s -march=x86-64 | FileCheck %s declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind ; Variable memcpy's should lower to calls. define i8* @test1(i8* %a, i8* %b, i64 %n) nounwind { entry: tail call void @llvm.memcpy.p0i8.p0i8.i64( i8* %a, i8* %b, i64 %n, i32 1, i1 0 ) ret i8* %a ; CHECK: test1: ; CHECK: memcpy } ; Variable memcpy's should lower to calls. define i8* @test2(i64* %a, i64* %b, i64 %n) nounwind { entry: %tmp14 = bitcast i64* %a to i8* %tmp25 = bitcast i64* %b to i8* tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp14, i8* %tmp25, i64 %n, i32 8, i1 0 ) ret i8* %tmp14 ; CHECK: test2: ; CHECK: memcpy }