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 8declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind 9 10define void @test1(i8* %a, i8* %b, i64 %s) nounwind { 11; NOFSRM-LABEL: test1 12; NOFSRM: # %bb.0: 13; NOFSRM: jmp memcpy 14; 15; FSRM-LABEL: test1 16; FSRM: # %bb.0: 17; FSRM-NEXT: movq %rdx, %rcx 18; FSRM-NEXT: rep;movsb (%rsi), %es:(%rdi) 19; FSRM-NEXT: retq 20 tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 %s, i1 0) 21 ret void 22} 23 24; Check that we don't crash due to a memcpy size type mismatch error ("Cannot 25; emit physreg copy instruction") in X86InstrInfo::copyPhysReg. 26%struct = type { [4096 x i8] } 27declare void @foo(%struct* byval(%struct)) 28define void @test2(%struct* %x) { 29 call void @foo(%struct* byval(%struct) %x) 30 ret void 31} 32