small-byval-memcpy.ll
1.4 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=core2 | FileCheck %s --check-prefix=CORE2
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=nehalem | FileCheck %s --check-prefix=NEHALEM
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=bdver2 | FileCheck %s --check-prefix=BDVER2
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=btver2 | FileCheck %s --check-prefix=BTVER2
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1)
define void @copy16bytes(i8* nocapture %a, i8* nocapture readonly %b) {
; CORE2-LABEL: copy16bytes:
; CORE2: ## %bb.0:
; CORE2-NEXT: movq (%rsi), %rax
; CORE2-NEXT: movq 8(%rsi), %rcx
; CORE2-NEXT: movq %rcx, 8(%rdi)
; CORE2-NEXT: movq %rax, (%rdi)
; CORE2-NEXT: retq
;
; NEHALEM-LABEL: copy16bytes:
; NEHALEM: ## %bb.0:
; NEHALEM-NEXT: movups (%rsi), %xmm0
; NEHALEM-NEXT: movups %xmm0, (%rdi)
; NEHALEM-NEXT: retq
;
; BDVER2-LABEL: copy16bytes:
; BDVER2: ## %bb.0:
; BDVER2-NEXT: movups (%rsi), %xmm0
; BDVER2-NEXT: movups %xmm0, (%rdi)
; BDVER2-NEXT: retq
;
; BTVER2-LABEL: copy16bytes:
; BTVER2: ## %bb.0:
; BTVER2-NEXT: vmovups (%rsi), %xmm0
; BTVER2-NEXT: vmovups %xmm0, (%rdi)
; BTVER2-NEXT: retq
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 16, i1 false)
ret void
; CHECK-LABEL: copy16bytes
}