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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=core2 | FileCheck %s
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
declare void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
define void @test1(i8* %a, i8* %b) nounwind {
; CHECK-LABEL: test1:
; CHECK: # %bb.0:
; CHECK-NEXT: movq (%rsi), %rax
; CHECK-NEXT: movq %rax, (%rdi)
; CHECK-NEXT: retq
tail call void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* %a, i8* %b, i64 8, i1 0 )
ret void
}
define void @regular_memcpy_calls_external_function(i8* %a, i8* %b) nounwind {
; CHECK-LABEL: regular_memcpy_calls_external_function:
; CHECK: # %bb.0:
; CHECK-NEXT: movl $128, %edx
; CHECK-NEXT: jmp memcpy@PLT # TAILCALL
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 128, i1 0 )
ret void
}
define void @inlined_copy_doesnt_call_external_function(i8* %a, i8* %b) nounwind {
; CHECK-LABEL: inlined_copy_doesnt_call_external_function:
; CHECK: # %bb.0:
; CHECK-NEXT: movl $128, %ecx
; CHECK-NEXT: rep;movsb (%rsi), %es:(%rdi)
; CHECK-NEXT: retq
tail call void @llvm.memcpy.inline.p0i8.p0i8.i64(i8* %a, i8* %b, i64 128, i1 0 )
ret void
}
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