File: tailcall-mem-intrinsics.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; RUN: llc -mtriple=arm-none-eabi < %s | FileCheck %s

; CHECK-LABEL: tail_memcpy_ret
; CHECK: bl	__aeabi_memcpy
define ptr @tail_memcpy_ret(ptr nocapture %p, ptr nocapture readonly %q, i32 %n) #0 {
entry:
  tail call void @llvm.memcpy.p0.p0.i32(ptr %p, ptr %q, i32 %n, i1 false)
  ret ptr %p
}

; CHECK-LABEL: tail_memmove_ret
; CHECK: bl	__aeabi_memmove
define ptr @tail_memmove_ret(ptr nocapture %p, ptr nocapture readonly %q, i32 %n) #0 {
entry:
  tail call void @llvm.memmove.p0.p0.i32(ptr %p, ptr %q, i32 %n, i1 false)
  ret ptr %p
}

; CHECK-LABEL: tail_memset_ret
; CHECK: bl	__aeabi_memset
define ptr @tail_memset_ret(ptr nocapture %p, i8 %c, i32 %n) #0 {
entry:
  tail call void @llvm.memset.p0.i32(ptr %p, i8 %c, i32 %n, i1 false)
  ret ptr %p
}

declare void @llvm.memcpy.p0.p0.i32(ptr nocapture, ptr nocapture readonly, i32, i1) #0
declare void @llvm.memmove.p0.p0.i32(ptr nocapture, ptr nocapture readonly, i32, i1) #0
declare void @llvm.memset.p0.i32(ptr nocapture, i8, i32, i1) #0

attributes #0 = { nounwind }