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
9 declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind
11 define void @test1(ptr %a, ptr %b, i64 %s) nounwind {
12 ; NOFSRM-LABEL: test1:
14 ; NOFSRM-NEXT: jmp memcpy@PLT # TAILCALL
18 ; FSRM-NEXT: movq %rdx, %rcx
19 ; FSRM-NEXT: rep;movsb (%rsi), %es:(%rdi)
21 tail call void @llvm.memcpy.p0.p0.i64(ptr %a, ptr %b, i64 %s, i1 0)
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] }
28 declare void @foo(ptr byval(%struct))
29 define void @test2(ptr %x) {
30 call void @foo(ptr byval(%struct) %x)