llvm-6502/test/CodeGen/SystemZ/tail-call-mem-intrinsics.ll
Krzysztof Parzyszek fcc330abfe Allow memory intrinsics to be tail calls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234764 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-13 17:16:45 +00:00

32 lines
1.0 KiB
LLVM

; RUN: llc -march=systemz < %s | FileCheck %s
; CHECK-LABEL: tail_memcpy:
; CHECK: jg memcpy
define void @tail_memcpy(i8* nocapture %p, i8* nocapture readonly %q, i32 %n) #0 {
entry:
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %p, i8* %q, i32 %n, i32 1, i1 false)
ret void
}
; CHECK-LABEL: tail_memmove:
; CHECK: jg memmove
define void @tail_memmove(i8* nocapture %p, i8* nocapture readonly %q, i32 %n) #0 {
entry:
tail call void @llvm.memmove.p0i8.p0i8.i32(i8* %p, i8* %q, i32 %n, i32 1, i1 false)
ret void
}
; CHECK-LABEL: tail_memset:
; CHECK: jg memset
define void @tail_memset(i8* nocapture %p, i8 %c, i32 %n) #0 {
entry:
tail call void @llvm.memset.p0i8.i32(i8* %p, i8 %c, i32 %n, i32 1, i1 false)
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #0
declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #0
declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) #0
attributes #0 = { nounwind }