| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mattr=-fsrm < %s -o - | FileCheck %s --check-prefix=NOFSRM |
| ; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mattr=+fsrm < %s -o - | FileCheck %s --check-prefix=FSRM |
| ; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=haswell < %s | FileCheck %s --check-prefix=NOFSRM |
| ; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=icelake-client < %s | FileCheck %s --check-prefix=FSRM |
| ; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=icelake-server < %s | FileCheck %s --check-prefix=FSRM |
| ; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=znver3 < %s | FileCheck %s --check-prefix=FSRM |
| |
| declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind |
| |
| define void @test1(ptr %a, ptr %b, i64 %s) nounwind { |
| ; NOFSRM-LABEL: test1: |
| ; NOFSRM: # %bb.0: |
| ; NOFSRM-NEXT: jmp memcpy@PLT # TAILCALL |
| ; |
| ; FSRM-LABEL: test1: |
| ; FSRM: # %bb.0: |
| ; FSRM-NEXT: movq %rdx, %rcx |
| ; FSRM-NEXT: rep;movsb (%rsi), %es:(%rdi) |
| ; FSRM-NEXT: retq |
| tail call void @llvm.memcpy.p0.p0.i64(ptr %a, ptr %b, i64 %s, i1 0) |
| ret void |
| } |
| |
| ; Check that we don't crash due to a memcpy size type mismatch error ("Cannot |
| ; emit physreg copy instruction") in X86InstrInfo::copyPhysReg. |
| %struct = type { [4096 x i8] } |
| declare void @foo(ptr byval(%struct)) |
| define void @test2(ptr %x) { |
| call void @foo(ptr byval(%struct) %x) |
| ret void |
| } |