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; 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
}
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