xref: /llvm-project/llvm/test/CodeGen/AArch64/tagp.ll (revision 5ddce70ef0e5a641d7fea95e31fc5e2439cb98cb) 
1; RUN: llc < %s -mtriple=aarch64 -mattr=+mte | FileCheck %s
2
3define ptr @tagp2(ptr %p, ptr %tag) {
4entry:
5; CHECK-LABEL: tagp2:
6; CHECK: subp [[R:x[0-9]+]], x0, x1
7; CHECK: add  [[R]], [[R]], x1
8; CHECK: addg x0, [[R]], #0, #2
9; CHECK: ret
10  %q = call ptr @llvm.aarch64.tagp.p0(ptr %p, ptr %tag, i64 2)
11  ret ptr %q
12}
13
14define ptr @irg_tagp_unrelated(ptr %p, ptr %q) {
15entry:
16; CHECK-LABEL: irg_tagp_unrelated:
17; CHECK: irg  [[R0:x[0-9]+]], x0{{$}}
18; CHECK: subp [[R:x[0-9]+]], [[R0]], x1
19; CHECK: add  [[R]], [[R0]], x1
20; CHECK: addg x0, [[R]], #0, #1
21; CHECK: ret
22  %p1 = call ptr @llvm.aarch64.irg(ptr %p, i64 0)
23  %q1 = call ptr @llvm.aarch64.tagp.p0(ptr %p1, ptr %q, i64 1)
24  ret ptr %q1
25}
26
27define ptr @tagp_alloca(ptr %tag) {
28entry:
29; CHECK-LABEL: tagp_alloca:
30; CHECK: mov  [[R0:x[0-9]+]], sp{{$}}
31; CHECK: subp [[R:x[0-9]+]], [[R0]], x0{{$}}
32; CHECK: add  [[R]], [[R0]], x0{{$}}
33; CHECK: addg x0, [[R]], #0, #3
34; CHECK: ret
35  %a = alloca i8, align 16
36  %q = call ptr @llvm.aarch64.tagp.p0(ptr %a, ptr %tag, i64 3)
37  ret ptr %q
38}
39
40declare ptr @llvm.aarch64.irg(ptr %p, i64 %exclude)
41declare ptr @llvm.aarch64.tagp.p0(ptr %p, ptr %tag, i64 %ofs)
42