1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mattr=-fsrm < %s -o - | FileCheck %s --check-prefix=NOFSRM
3; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mattr=+fsrm < %s -o - | FileCheck %s --check-prefix=FSRM
4; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=haswell < %s | FileCheck %s --check-prefix=NOFSRM
5; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=icelake-client < %s | FileCheck %s --check-prefix=FSRM
6; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=icelake-server < %s | FileCheck %s --check-prefix=FSRM
7; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=znver3 < %s | FileCheck %s --check-prefix=FSRM
8
9declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
10
11define void @test1(i8* %a, i8* %b, i64 %s) nounwind {
12; NOFSRM-LABEL: test1:
13; NOFSRM:       # %bb.0:
14; NOFSRM-NEXT:    jmp memcpy@PLT # TAILCALL
15;
16; FSRM-LABEL: test1:
17; FSRM:       # %bb.0:
18; FSRM-NEXT:    movq %rdx, %rcx
19; FSRM-NEXT:    rep;movsb (%rsi), %es:(%rdi)
20; FSRM-NEXT:    retq
21  tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 %s, i1 0)
22  ret void
23}
24
25; Check that we don't crash due to a memcpy size type mismatch error ("Cannot
26; emit physreg copy instruction") in X86InstrInfo::copyPhysReg.
27%struct = type { [4096 x i8] }
28declare void @foo(%struct* byval(%struct))
29define void @test2(%struct* %x) {
30  call void @foo(%struct* byval(%struct) %x)
31  ret void
32}
33