33 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mattr=-fsrm < %s -o - | FileCheck %s --check-prefix=NOFSRM3; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mattr=+fsrm < %s -o - | FileCheck %s --check-prefix=FSRM4; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=haswell < %s | FileCheck %s --check-prefix=NOFSRM5; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=icelake-client < %s | FileCheck %s --check-prefix=FSRM6; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=icelake-server < %s | FileCheck %s --check-prefix=FSRM7; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=znver3 < %s | FileCheck %s --check-prefix=FSRM8 9declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind10 11define void @test1(ptr %a, ptr %b, i64 %s) nounwind {12; NOFSRM-LABEL: test1:13; NOFSRM: # %bb.0:14; NOFSRM-NEXT: jmp memcpy@PLT # TAILCALL15;16; FSRM-LABEL: test1:17; FSRM: # %bb.0:18; FSRM-NEXT: movq %rdx, %rcx19; FSRM-NEXT: rep;movsb (%rsi), %es:(%rdi)20; FSRM-NEXT: retq21 tail call void @llvm.memcpy.p0.p0.i64(ptr %a, ptr %b, i64 %s, i1 0)22 ret void23}24 25; Check that we don't crash due to a memcpy size type mismatch error ("Cannot26; emit physreg copy instruction") in X86InstrInfo::copyPhysReg.27%struct = type { [4096 x i8] }28declare void @foo(ptr byval(%struct))29define void @test2(ptr %x) {30 call void @foo(ptr byval(%struct) %x)31 ret void32}33